1154258 Commits

Author SHA1 Message Date
Breno Leitao
539a2b995a virtio_net: Do not send RSS key if it is not supported
commit 059a49aa2e25c58f90b50151f109dd3c4cdb3a47 upstream.

There is a bug when setting the RSS options in virtio_net that can break
the whole machine, getting the kernel into an infinite loop.

Running the following command in any QEMU virtual machine with virtionet
will reproduce this problem:

    # ethtool -X eth0  hfunc toeplitz

This is how the problem happens:

1) ethtool_set_rxfh() calls virtnet_set_rxfh()

2) virtnet_set_rxfh() calls virtnet_commit_rss_command()

3) virtnet_commit_rss_command() populates 4 entries for the rss
scatter-gather

4) Since the command above does not have a key, then the last
scatter-gatter entry will be zeroed, since rss_key_size == 0.
sg_buf_size = vi->rss_key_size;

5) This buffer is passed to qemu, but qemu is not happy with a buffer
with zero length, and do the following in virtqueue_map_desc() (QEMU
function):

  if (!sz) {
      virtio_error(vdev, "virtio: zero sized buffers are not allowed");

6) virtio_error() (also QEMU function) set the device as broken

    vdev->broken = true;

7) Qemu bails out, and do not repond this crazy kernel.

8) The kernel is waiting for the response to come back (function
virtnet_send_command())

9) The kernel is waiting doing the following :

      while (!virtqueue_get_buf(vi->cvq, &tmp) &&
	     !virtqueue_is_broken(vi->cvq))
	      cpu_relax();

10) None of the following functions above is true, thus, the kernel
loops here forever. Keeping in mind that virtqueue_is_broken() does
not look at the qemu `vdev->broken`, so, it never realizes that the
vitio is broken at QEMU side.

Fix it by not sending RSS commands if the feature is not available in
the device.

Fixes: c7114b1249fa ("drivers/net/virtio_net: Added basic RSS support.")
Cc: stable@vger.kernel.org
Cc: qemu-devel@nongnu.org
Signed-off-by: Breno Leitao <leitao@debian.org>
Reviewed-by: Heng Qi <hengqi@linux.alibaba.com>
Reviewed-by: Xuan Zhuo <xuanzhuo@linux.alibaba.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Signed-off-by: Konstantin Ovsepian <ovs@ovs.to>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2024-05-02 16:29:27 +02:00
Greg Kroah-Hartman
34410fcad9 Revert "crypto: api - Disallow identical driver names"
This reverts commit 680eb0a99336f7b21ff149bc57579d059421c5de which is
commit 27016f75f5ed47e2d8e0ca75a8ff1f40bc1a5e27 upstream.

It is reported to cause problems in older kernels due to some crypto
drivers having the same name, so revert it here to fix the problems.

Link: https://lore.kernel.org/r/aceda6e2-cefb-4146-aef8-ff4bafa56e56@roeck-us.net
Reported-by: Guenter Roeck <linux@roeck-us.net>
Cc: Ovidiu Panait <ovidiu.panait@windriver.com>
Cc: Herbert Xu <herbert@gondor.apana.org.au>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2024-05-02 16:29:27 +02:00
Kees Cook
b3686200ad cifs: Replace remaining 1-element arrays
commit 35235e19b393b54db0e0d7c424d658ba45f20468 upstream.

The kernel is globally removing the ambiguous 0-length and 1-element
arrays in favor of flexible arrays, so that we can gain both compile-time
and run-time array bounds checking[1].

Replace the trailing 1-element array with a flexible array in the
following structures:

	struct cifs_spnego_msg
	struct cifs_quota_data
	struct get_dfs_referral_rsp
	struct file_alt_name_info
	NEGOTIATE_RSP
	SESSION_SETUP_ANDX
	TCONX_REQ
	TCONX_RSP
	TCONX_RSP_EXT
	ECHO_REQ
	ECHO_RSP
	OPEN_REQ
	OPENX_REQ
	LOCK_REQ
	RENAME_REQ
	COPY_REQ
	COPY_RSP
	NT_RENAME_REQ
	DELETE_FILE_REQ
	DELETE_DIRECTORY_REQ
	CREATE_DIRECTORY_REQ
	QUERY_INFORMATION_REQ
	SETATTR_REQ
	TRANSACT_IOCTL_REQ
	TRANSACT_CHANGE_NOTIFY_REQ
	TRANSACTION2_QPI_REQ
	TRANSACTION2_SPI_REQ
	TRANSACTION2_FFIRST_REQ
	TRANSACTION2_GET_DFS_REFER_REQ
	FILE_UNIX_LINK_INFO
	FILE_DIRECTORY_INFO
	FILE_FULL_DIRECTORY_INFO
	SEARCH_ID_FULL_DIR_INFO
	FILE_BOTH_DIRECTORY_INFO
	FIND_FILE_STANDARD_INFO

Replace the trailing 1-element array with a flexible array, but leave
the existing structure padding:

	FILE_ALL_INFO
	FILE_UNIX_INFO

Remove unused structures:

	struct gea
	struct gealist

Adjust all related size calculations to match the changes to sizeof().

No machine code output differences are produced after these changes.

[1] For lots of details, see both:
    https://docs.kernel.org/process/deprecated.html#zero-length-and-one-element-arrays
    https://people.kernel.org/kees/bounded-flexible-arrays-in-c

Cc: Steve French <sfrench@samba.org>
Cc: Paulo Alcantara <pc@cjr.nz>
Cc: Ronnie Sahlberg <lsahlber@redhat.com>
Cc: Shyam Prasad N <sprasad@microsoft.com>
Cc: linux-cifs@vger.kernel.org
Cc: samba-technical@lists.samba.org
Signed-off-by: Kees Cook <keescook@chromium.org>
Signed-off-by: Steve French <stfrench@microsoft.com>
[ Salvatore Bonaccorso: Patch does not apply cleanly only due to a
  whitespace difference in fs/smb/client/cifspdu.h . Fixed up manually. ]
Signed-off-by: Salvatore Bonaccorso <carnil@debian.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2024-05-02 16:29:27 +02:00
Kuniyuki Iwashima
2ceacda270 af_unix: Suppress false-positive lockdep splat for spin_lock() in __unix_gc().
[ Upstream commit 1971d13ffa84a551d29a81fdf5b5ec5be166ac83 ]

syzbot reported a lockdep splat regarding unix_gc_lock and
unix_state_lock().

One is called from recvmsg() for a connected socket, and another
is called from GC for TCP_LISTEN socket.

So, the splat is false-positive.

Let's add a dedicated lock class for the latter to suppress the splat.

Note that this change is not necessary for net-next.git as the issue
is only applied to the old GC impl.

[0]:
WARNING: possible circular locking dependency detected
6.9.0-rc5-syzkaller-00007-g4d2008430ce8 #0 Not tainted
 -----------------------------------------------------
kworker/u8:1/11 is trying to acquire lock:
ffff88807cea4e70 (&u->lock){+.+.}-{2:2}, at: spin_lock include/linux/spinlock.h:351 [inline]
ffff88807cea4e70 (&u->lock){+.+.}-{2:2}, at: __unix_gc+0x40e/0xf70 net/unix/garbage.c:302

but task is already holding lock:
ffffffff8f6ab638 (unix_gc_lock){+.+.}-{2:2}, at: spin_lock include/linux/spinlock.h:351 [inline]
ffffffff8f6ab638 (unix_gc_lock){+.+.}-{2:2}, at: __unix_gc+0x117/0xf70 net/unix/garbage.c:261

which lock already depends on the new lock.

the existing dependency chain (in reverse order) is:

 -> #1 (unix_gc_lock){+.+.}-{2:2}:
       lock_acquire+0x1ed/0x550 kernel/locking/lockdep.c:5754
       __raw_spin_lock include/linux/spinlock_api_smp.h:133 [inline]
       _raw_spin_lock+0x2e/0x40 kernel/locking/spinlock.c:154
       spin_lock include/linux/spinlock.h:351 [inline]
       unix_notinflight+0x13d/0x390 net/unix/garbage.c:140
       unix_detach_fds net/unix/af_unix.c:1819 [inline]
       unix_destruct_scm+0x221/0x350 net/unix/af_unix.c:1876
       skb_release_head_state+0x100/0x250 net/core/skbuff.c:1188
       skb_release_all net/core/skbuff.c:1200 [inline]
       __kfree_skb net/core/skbuff.c:1216 [inline]
       kfree_skb_reason+0x16d/0x3b0 net/core/skbuff.c:1252
       kfree_skb include/linux/skbuff.h:1262 [inline]
       manage_oob net/unix/af_unix.c:2672 [inline]
       unix_stream_read_generic+0x1125/0x2700 net/unix/af_unix.c:2749
       unix_stream_splice_read+0x239/0x320 net/unix/af_unix.c:2981
       do_splice_read fs/splice.c:985 [inline]
       splice_file_to_pipe+0x299/0x500 fs/splice.c:1295
       do_splice+0xf2d/0x1880 fs/splice.c:1379
       __do_splice fs/splice.c:1436 [inline]
       __do_sys_splice fs/splice.c:1652 [inline]
       __se_sys_splice+0x331/0x4a0 fs/splice.c:1634
       do_syscall_x64 arch/x86/entry/common.c:52 [inline]
       do_syscall_64+0xf5/0x240 arch/x86/entry/common.c:83
       entry_SYSCALL_64_after_hwframe+0x77/0x7f

 -> #0 (&u->lock){+.+.}-{2:2}:
       check_prev_add kernel/locking/lockdep.c:3134 [inline]
       check_prevs_add kernel/locking/lockdep.c:3253 [inline]
       validate_chain+0x18cb/0x58e0 kernel/locking/lockdep.c:3869
       __lock_acquire+0x1346/0x1fd0 kernel/locking/lockdep.c:5137
       lock_acquire+0x1ed/0x550 kernel/locking/lockdep.c:5754
       __raw_spin_lock include/linux/spinlock_api_smp.h:133 [inline]
       _raw_spin_lock+0x2e/0x40 kernel/locking/spinlock.c:154
       spin_lock include/linux/spinlock.h:351 [inline]
       __unix_gc+0x40e/0xf70 net/unix/garbage.c:302
       process_one_work kernel/workqueue.c:3254 [inline]
       process_scheduled_works+0xa10/0x17c0 kernel/workqueue.c:3335
       worker_thread+0x86d/0xd70 kernel/workqueue.c:3416
       kthread+0x2f0/0x390 kernel/kthread.c:388
       ret_from_fork+0x4b/0x80 arch/x86/kernel/process.c:147
       ret_from_fork_asm+0x1a/0x30 arch/x86/entry/entry_64.S:244

other info that might help us debug this:

 Possible unsafe locking scenario:

       CPU0                    CPU1
       ----                    ----
  lock(unix_gc_lock);
                               lock(&u->lock);
                               lock(unix_gc_lock);
  lock(&u->lock);

 *** DEADLOCK ***

3 locks held by kworker/u8:1/11:
 #0: ffff888015089148 ((wq_completion)events_unbound){+.+.}-{0:0}, at: process_one_work kernel/workqueue.c:3229 [inline]
 #0: ffff888015089148 ((wq_completion)events_unbound){+.+.}-{0:0}, at: process_scheduled_works+0x8e0/0x17c0 kernel/workqueue.c:3335
 #1: ffffc90000107d00 (unix_gc_work){+.+.}-{0:0}, at: process_one_work kernel/workqueue.c:3230 [inline]
 #1: ffffc90000107d00 (unix_gc_work){+.+.}-{0:0}, at: process_scheduled_works+0x91b/0x17c0 kernel/workqueue.c:3335
 #2: ffffffff8f6ab638 (unix_gc_lock){+.+.}-{2:2}, at: spin_lock include/linux/spinlock.h:351 [inline]
 #2: ffffffff8f6ab638 (unix_gc_lock){+.+.}-{2:2}, at: __unix_gc+0x117/0xf70 net/unix/garbage.c:261

stack backtrace:
CPU: 0 PID: 11 Comm: kworker/u8:1 Not tainted 6.9.0-rc5-syzkaller-00007-g4d2008430ce8 #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 03/27/2024
Workqueue: events_unbound __unix_gc
Call Trace:
 <TASK>
 __dump_stack lib/dump_stack.c:88 [inline]
 dump_stack_lvl+0x241/0x360 lib/dump_stack.c:114
 check_noncircular+0x36a/0x4a0 kernel/locking/lockdep.c:2187
 check_prev_add kernel/locking/lockdep.c:3134 [inline]
 check_prevs_add kernel/locking/lockdep.c:3253 [inline]
 validate_chain+0x18cb/0x58e0 kernel/locking/lockdep.c:3869
 __lock_acquire+0x1346/0x1fd0 kernel/locking/lockdep.c:5137
 lock_acquire+0x1ed/0x550 kernel/locking/lockdep.c:5754
 __raw_spin_lock include/linux/spinlock_api_smp.h:133 [inline]
 _raw_spin_lock+0x2e/0x40 kernel/locking/spinlock.c:154
 spin_lock include/linux/spinlock.h:351 [inline]
 __unix_gc+0x40e/0xf70 net/unix/garbage.c:302
 process_one_work kernel/workqueue.c:3254 [inline]
 process_scheduled_works+0xa10/0x17c0 kernel/workqueue.c:3335
 worker_thread+0x86d/0xd70 kernel/workqueue.c:3416
 kthread+0x2f0/0x390 kernel/kthread.c:388
 ret_from_fork+0x4b/0x80 arch/x86/kernel/process.c:147
 ret_from_fork_asm+0x1a/0x30 arch/x86/entry/entry_64.S:244
 </TASK>

Fixes: 47d8ac011fe1 ("af_unix: Fix garbage collector racing against connect()")
Reported-and-tested-by: syzbot+fa379358c28cc87cc307@syzkaller.appspotmail.com
Closes: https://syzkaller.appspot.com/bug?extid=fa379358c28cc87cc307
Signed-off-by: Kuniyuki Iwashima <kuniyu@amazon.com>
Link: https://lore.kernel.org/r/20240424170443.9832-1-kuniyu@amazon.com
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
Signed-off-by: Sasha Levin <sashal@kernel.org>
2024-05-02 16:29:27 +02:00
Jason Reeder
f05caed833 net: ethernet: ti: am65-cpts: Fix PTPv1 message type on TX packets
[ Upstream commit 1b9e743e923b256e353a9a644195372285e5a6c0 ]

The CPTS, by design, captures the messageType (Sync, Delay_Req, etc.)
field from the second nibble of the PTP header which is defined in the
PTPv2 (1588-2008) specification. In the PTPv1 (1588-2002) specification
the first two bytes of the PTP header are defined as the versionType
which is always 0x0001. This means that any PTPv1 packets that are
tagged for TX timestamping by the CPTS will have their messageType set
to 0x0 which corresponds to a Sync message type. This causes issues
when a PTPv1 stack is expecting a Delay_Req (messageType: 0x1)
timestamp that never appears.

Fix this by checking if the ptp_class of the timestamped TX packet is
PTP_CLASS_V1 and then matching the PTP sequence ID to the stored
sequence ID in the skb->cb data structure. If the sequence IDs match
and the packet is of type PTPv1 then there is a chance that the
messageType has been incorrectly stored by the CPTS so overwrite the
messageType stored by the CPTS with the messageType from the skb->cb
data structure. This allows the PTPv1 stack to receive TX timestamps
for Delay_Req packets which are necessary to lock onto a PTP Leader.

Signed-off-by: Jason Reeder <jreeder@ti.com>
Signed-off-by: Ravi Gunasekaran <r-gunasekaran@ti.com>
Tested-by: Ed Trexel <ed.trexel@hp.com>
Fixes: f6bd59526ca5 ("net: ethernet: ti: introduce am654 common platform time sync driver")
Link: https://lore.kernel.org/r/20240424071626.32558-1-r-gunasekaran@ti.com
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
Signed-off-by: Sasha Levin <sashal@kernel.org>
2024-05-02 16:29:26 +02:00
Sudheer Mogilappagari
777d7d0049 iavf: Fix TC config comparison with existing adapter TC config
[ Upstream commit 54976cf58d6168b8d15cebb395069f23b2f34b31 ]

Same number of TCs doesn't imply that underlying TC configs are
same. The config could be different due to difference in number
of queues in each TC. Add utility function to determine if TC
configs are same.

Fixes: d5b33d024496 ("i40evf: add ndo_setup_tc callback to i40evf")
Signed-off-by: Sudheer Mogilappagari <sudheer.mogilappagari@intel.com>
Tested-by: Mineri Bhange <minerix.bhange@intel.com> (A Contingent Worker at Intel)
Signed-off-by: Tony Nguyen <anthony.l.nguyen@intel.com>
Link: https://lore.kernel.org/r/20240423182723.740401-4-anthony.l.nguyen@intel.com
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
Signed-off-by: Sasha Levin <sashal@kernel.org>
2024-05-02 16:29:26 +02:00
Erwan Velu
81ad28ac21 i40e: Report MFS in decimal base instead of hex
[ Upstream commit ef3c313119ea448c22da10366faa26b5b4b1a18e ]

If the MFS is set below the default (0x2600), a warning message is
reported like the following :

	MFS for port 1 has been set below the default: 600

This message is a bit confusing as the number shown here (600) is in
fact an hexa number: 0x600 = 1536

Without any explicit "0x" prefix, this message is read like the MFS is
set to 600 bytes.

MFS, as per MTUs, are usually expressed in decimal base.

This commit reports both current and default MFS values in decimal
so it's less confusing for end-users.

A typical warning message looks like the following :

	MFS for port 1 (1536) has been set below the default (9728)

Signed-off-by: Erwan Velu <e.velu@criteo.com>
Reviewed-by: Simon Horman <horms@kernel.org>
Tested-by: Tony Brelinski <tony.brelinski@intel.com>
Signed-off-by: Tony Nguyen <anthony.l.nguyen@intel.com>
Fixes: 3a2c6ced90e1 ("i40e: Add a check to see if MFS is set")
Link: https://lore.kernel.org/r/20240423182723.740401-3-anthony.l.nguyen@intel.com
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
Signed-off-by: Sasha Levin <sashal@kernel.org>
2024-05-02 16:29:26 +02:00
Sindhu Devale
152ed360cf i40e: Do not use WQ_MEM_RECLAIM flag for workqueue
[ Upstream commit 2cc7d150550cc981aceedf008f5459193282425c ]

Issue reported by customer during SRIOV testing, call trace:
When both i40e and the i40iw driver are loaded, a warning
in check_flush_dependency is being triggered. This seems
to be because of the i40e driver workqueue is allocated with
the WQ_MEM_RECLAIM flag, and the i40iw one is not.

Similar error was encountered on ice too and it was fixed by
removing the flag. Do the same for i40e too.

[Feb 9 09:08] ------------[ cut here ]------------
[  +0.000004] workqueue: WQ_MEM_RECLAIM i40e:i40e_service_task [i40e] is
flushing !WQ_MEM_RECLAIM infiniband:0x0
[  +0.000060] WARNING: CPU: 0 PID: 937 at kernel/workqueue.c:2966
check_flush_dependency+0x10b/0x120
[  +0.000007] Modules linked in: snd_seq_dummy snd_hrtimer snd_seq
snd_timer snd_seq_device snd soundcore nls_utf8 cifs cifs_arc4
nls_ucs2_utils rdma_cm iw_cm ib_cm cifs_md4 dns_resolver netfs qrtr
rfkill sunrpc vfat fat intel_rapl_msr intel_rapl_common irdma
intel_uncore_frequency intel_uncore_frequency_common ice ipmi_ssif
isst_if_common skx_edac nfit libnvdimm x86_pkg_temp_thermal
intel_powerclamp gnss coretemp ib_uverbs rapl intel_cstate ib_core
iTCO_wdt iTCO_vendor_support acpi_ipmi mei_me ipmi_si intel_uncore
ioatdma i2c_i801 joydev pcspkr mei ipmi_devintf lpc_ich
intel_pch_thermal i2c_smbus ipmi_msghandler acpi_power_meter acpi_pad
xfs libcrc32c ast sd_mod drm_shmem_helper t10_pi drm_kms_helper sg ixgbe
drm i40e ahci crct10dif_pclmul libahci crc32_pclmul igb crc32c_intel
libata ghash_clmulni_intel i2c_algo_bit mdio dca wmi dm_mirror
dm_region_hash dm_log dm_mod fuse
[  +0.000050] CPU: 0 PID: 937 Comm: kworker/0:3 Kdump: loaded Not
tainted 6.8.0-rc2-Feb-net_dev-Qiueue-00279-gbd43c5687e05 #1
[  +0.000003] Hardware name: Intel Corporation S2600BPB/S2600BPB, BIOS
SE5C620.86B.02.01.0013.121520200651 12/15/2020
[  +0.000001] Workqueue: i40e i40e_service_task [i40e]
[  +0.000024] RIP: 0010:check_flush_dependency+0x10b/0x120
[  +0.000003] Code: ff 49 8b 54 24 18 48 8d 8b b0 00 00 00 49 89 e8 48
81 c6 b0 00 00 00 48 c7 c7 b0 97 fa 9f c6 05 8a cc 1f 02 01 e8 35 b3 fd
ff <0f> 0b e9 10 ff ff ff 80 3d 78 cc 1f 02 00 75 94 e9 46 ff ff ff 90
[  +0.000002] RSP: 0018:ffffbd294976bcf8 EFLAGS: 00010282
[  +0.000002] RAX: 0000000000000000 RBX: ffff94d4c483c000 RCX:
0000000000000027
[  +0.000001] RDX: ffff94d47f620bc8 RSI: 0000000000000001 RDI:
ffff94d47f620bc0
[  +0.000001] RBP: 0000000000000000 R08: 0000000000000000 R09:
00000000ffff7fff
[  +0.000001] R10: ffffbd294976bb98 R11: ffffffffa0be65e8 R12:
ffff94c5451ea180
[  +0.000001] R13: ffff94c5ab5e8000 R14: ffff94c5c20b6e05 R15:
ffff94c5f1330ab0
[  +0.000001] FS:  0000000000000000(0000) GS:ffff94d47f600000(0000)
knlGS:0000000000000000
[  +0.000002] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[  +0.000001] CR2: 00007f9e6f1fca70 CR3: 0000000038e20004 CR4:
00000000007706f0
[  +0.000000] DR0: 0000000000000000 DR1: 0000000000000000 DR2:
0000000000000000
[  +0.000001] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7:
0000000000000400
[  +0.000001] PKRU: 55555554
[  +0.000001] Call Trace:
[  +0.000001]  <TASK>
[  +0.000002]  ? __warn+0x80/0x130
[  +0.000003]  ? check_flush_dependency+0x10b/0x120
[  +0.000002]  ? report_bug+0x195/0x1a0
[  +0.000005]  ? handle_bug+0x3c/0x70
[  +0.000003]  ? exc_invalid_op+0x14/0x70
[  +0.000002]  ? asm_exc_invalid_op+0x16/0x20
[  +0.000006]  ? check_flush_dependency+0x10b/0x120
[  +0.000002]  ? check_flush_dependency+0x10b/0x120
[  +0.000002]  __flush_workqueue+0x126/0x3f0
[  +0.000015]  ib_cache_cleanup_one+0x1c/0xe0 [ib_core]
[  +0.000056]  __ib_unregister_device+0x6a/0xb0 [ib_core]
[  +0.000023]  ib_unregister_device_and_put+0x34/0x50 [ib_core]
[  +0.000020]  i40iw_close+0x4b/0x90 [irdma]
[  +0.000022]  i40e_notify_client_of_netdev_close+0x54/0xc0 [i40e]
[  +0.000035]  i40e_service_task+0x126/0x190 [i40e]
[  +0.000024]  process_one_work+0x174/0x340
[  +0.000003]  worker_thread+0x27e/0x390
[  +0.000001]  ? __pfx_worker_thread+0x10/0x10
[  +0.000002]  kthread+0xdf/0x110
[  +0.000002]  ? __pfx_kthread+0x10/0x10
[  +0.000002]  ret_from_fork+0x2d/0x50
[  +0.000003]  ? __pfx_kthread+0x10/0x10
[  +0.000001]  ret_from_fork_asm+0x1b/0x30
[  +0.000004]  </TASK>
[  +0.000001] ---[ end trace 0000000000000000 ]---

Fixes: 4d5957cbdecd ("i40e: remove WQ_UNBOUND and the task limit of our workqueue")
Signed-off-by: Sindhu Devale <sindhu.devale@intel.com>
Reviewed-by: Arkadiusz Kubalewski <arkadiusz.kubalewski@intel.com>
Reviewed-by: Mateusz Polchlopek <mateusz.polchlopek@intel.com>
Signed-off-by: Aleksandr Loktionov <aleksandr.loktionov@intel.com>
Tested-by: Robert Ganzynkowicz <robert.ganzynkowicz@intel.com>
Signed-off-by: Tony Nguyen <anthony.l.nguyen@intel.com>
Link: https://lore.kernel.org/r/20240423182723.740401-2-anthony.l.nguyen@intel.com
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
Signed-off-by: Sasha Levin <sashal@kernel.org>
2024-05-02 16:29:26 +02:00
Pablo Neira Ayuso
13ba94f6cc netfilter: nf_tables: honor table dormant flag from netdev release event path
[ Upstream commit 8e30abc9ace4f0add4cd761dfdbfaebae5632dd2 ]

Check for table dormant flag otherwise netdev release event path tries
to unregister an already unregistered hook.

[524854.857999] ------------[ cut here ]------------
[524854.858010] WARNING: CPU: 0 PID: 3386599 at net/netfilter/core.c:501 __nf_unregister_net_hook+0x21a/0x260
[...]
[524854.858848] CPU: 0 PID: 3386599 Comm: kworker/u32:2 Not tainted 6.9.0-rc3+ #365
[524854.858869] Workqueue: netns cleanup_net
[524854.858886] RIP: 0010:__nf_unregister_net_hook+0x21a/0x260
[524854.858903] Code: 24 e8 aa 73 83 ff 48 63 43 1c 83 f8 01 0f 85 3d ff ff ff e8 98 d1 f0 ff 48 8b 3c 24 e8 8f 73 83 ff 48 63 43 1c e9 26 ff ff ff <0f> 0b 48 83 c4 18 48 c7 c7 00 68 e9 82 5b 5d 41 5c 41 5d 41 5e 41
[524854.858914] RSP: 0018:ffff8881e36d79e0 EFLAGS: 00010246
[524854.858926] RAX: 0000000000000000 RBX: ffff8881339ae790 RCX: ffffffff81ba524a
[524854.858936] RDX: dffffc0000000000 RSI: 0000000000000008 RDI: ffff8881c8a16438
[524854.858945] RBP: ffff8881c8a16438 R08: 0000000000000001 R09: ffffed103c6daf34
[524854.858954] R10: ffff8881e36d79a7 R11: 0000000000000000 R12: 0000000000000005
[524854.858962] R13: ffff8881c8a16000 R14: 0000000000000000 R15: ffff8881351b5a00
[524854.858971] FS:  0000000000000000(0000) GS:ffff888390800000(0000) knlGS:0000000000000000
[524854.858982] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[524854.858991] CR2: 00007fc9be0f16f4 CR3: 00000001437cc004 CR4: 00000000001706f0
[524854.859000] Call Trace:
[524854.859006]  <TASK>
[524854.859013]  ? __warn+0x9f/0x1a0
[524854.859027]  ? __nf_unregister_net_hook+0x21a/0x260
[524854.859044]  ? report_bug+0x1b1/0x1e0
[524854.859060]  ? handle_bug+0x3c/0x70
[524854.859071]  ? exc_invalid_op+0x17/0x40
[524854.859083]  ? asm_exc_invalid_op+0x1a/0x20
[524854.859100]  ? __nf_unregister_net_hook+0x6a/0x260
[524854.859116]  ? __nf_unregister_net_hook+0x21a/0x260
[524854.859135]  nf_tables_netdev_event+0x337/0x390 [nf_tables]
[524854.859304]  ? __pfx_nf_tables_netdev_event+0x10/0x10 [nf_tables]
[524854.859461]  ? packet_notifier+0xb3/0x360
[524854.859476]  ? _raw_spin_unlock_irqrestore+0x11/0x40
[524854.859489]  ? dcbnl_netdevice_event+0x35/0x140
[524854.859507]  ? __pfx_nf_tables_netdev_event+0x10/0x10 [nf_tables]
[524854.859661]  notifier_call_chain+0x7d/0x140
[524854.859677]  unregister_netdevice_many_notify+0x5e1/0xae0

Fixes: d54725cd11a5 ("netfilter: nf_tables: support for multiple devices per netdev hook")
Signed-off-by: Pablo Neira Ayuso <pablo@netfilter.org>
Signed-off-by: Sasha Levin <sashal@kernel.org>
2024-05-02 16:29:26 +02:00
Jakub Kicinski
e325357440 eth: bnxt: fix counting packets discarded due to OOM and netpoll
[ Upstream commit 730117730709992c9f6535dd7b47638ee561ec45 ]

I added OOM and netpoll discard counters, naively assuming that
the cpr pointer is pointing to a common completion ring.
Turns out that is usually *a* completion ring but not *the*
completion ring which bnapi->cp_ring points to. bnapi->cp_ring
is where the stats are read from, so we end up reporting 0
thru ethtool -S and qstat even though the drop events have happened.
Make 100% sure we're recording statistics in the correct structure.

Fixes: 907fd4a294db ("bnxt: count discards due to memory allocation errors")
Reviewed-by: Michael Chan <michael.chan@broadcom.com>
Link: https://lore.kernel.org/r/20240424002148.3937059-1-kuba@kernel.org
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
Signed-off-by: Sasha Levin <sashal@kernel.org>
2024-05-02 16:29:26 +02:00
Ido Schimmel
5bfe7bf965 mlxsw: spectrum_acl_tcam: Fix memory leak when canceling rehash work
[ Upstream commit fb4e2b70a7194b209fc7320bbf33b375f7114bd5 ]

The rehash delayed work is rescheduled with a delay if the number of
credits at end of the work is not negative as supposedly it means that
the migration ended. Otherwise, it is rescheduled immediately.

After "mlxsw: spectrum_acl_tcam: Fix possible use-after-free during
rehash" the above is no longer accurate as a non-negative number of
credits is no longer indicative of the migration being done. It can also
happen if the work encountered an error in which case the migration will
resume the next time the work is scheduled.

The significance of the above is that it is possible for the work to be
pending and associated with hints that were allocated when the migration
started. This leads to the hints being leaked [1] when the work is
canceled while pending as part of ACL region dismantle.

Fix by freeing the hints if hints are associated with a work that was
canceled while pending.

Blame the original commit since the reliance on not having a pending
work associated with hints is fragile.

[1]
unreferenced object 0xffff88810e7c3000 (size 256):
  comm "kworker/0:16", pid 176, jiffies 4295460353
  hex dump (first 32 bytes):
    00 30 95 11 81 88 ff ff 61 00 00 00 00 00 00 80  .0......a.......
    00 00 61 00 40 00 00 00 00 00 00 00 04 00 00 00  ..a.@...........
  backtrace (crc 2544ddb9):
    [<00000000cf8cfab3>] kmalloc_trace+0x23f/0x2a0
    [<000000004d9a1ad9>] objagg_hints_get+0x42/0x390
    [<000000000b143cf3>] mlxsw_sp_acl_erp_rehash_hints_get+0xca/0x400
    [<0000000059bdb60a>] mlxsw_sp_acl_tcam_vregion_rehash_work+0x868/0x1160
    [<00000000e81fd734>] process_one_work+0x59c/0xf20
    [<00000000ceee9e81>] worker_thread+0x799/0x12c0
    [<00000000bda6fe39>] kthread+0x246/0x300
    [<0000000070056d23>] ret_from_fork+0x34/0x70
    [<00000000dea2b93e>] ret_from_fork_asm+0x1a/0x30

Fixes: c9c9af91f1d9 ("mlxsw: spectrum_acl: Allow to interrupt/continue rehash work")
Signed-off-by: Ido Schimmel <idosch@nvidia.com>
Tested-by: Alexander Zubkov <green@qrator.net>
Signed-off-by: Petr Machata <petrm@nvidia.com>
Reviewed-by: Simon Horman <horms@kernel.org>
Link: https://lore.kernel.org/r/0cc12ebb07c4d4c41a1265ee2c28b392ff997a86.1713797103.git.petrm@nvidia.com
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
Signed-off-by: Sasha Levin <sashal@kernel.org>
2024-05-02 16:29:26 +02:00
Ido Schimmel
4526a56e02 mlxsw: spectrum_acl_tcam: Fix incorrect list API usage
[ Upstream commit b377add0f0117409c418ddd6504bd682ebe0bf79 ]

Both the function that migrates all the chunks within a region and the
function that migrates all the entries within a chunk call
list_first_entry() on the respective lists without checking that the
lists are not empty. This is incorrect usage of the API, which leads to
the following warning [1].

Fix by returning if the lists are empty as there is nothing to migrate
in this case.

[1]
WARNING: CPU: 0 PID: 6437 at drivers/net/ethernet/mellanox/mlxsw/spectrum_acl_tcam.c:1266 mlxsw_sp_acl_tcam_vchunk_migrate_all+0x1f1/0>
Modules linked in:
CPU: 0 PID: 6437 Comm: kworker/0:37 Not tainted 6.9.0-rc3-custom-00883-g94a65f079ef6 #39
Hardware name: Mellanox Technologies Ltd. MSN3700/VMOD0005, BIOS 5.11 01/06/2019
Workqueue: mlxsw_core mlxsw_sp_acl_tcam_vregion_rehash_work
RIP: 0010:mlxsw_sp_acl_tcam_vchunk_migrate_all+0x1f1/0x2c0
[...]
Call Trace:
 <TASK>
 mlxsw_sp_acl_tcam_vregion_rehash_work+0x6c/0x4a0
 process_one_work+0x151/0x370
 worker_thread+0x2cb/0x3e0
 kthread+0xd0/0x100
 ret_from_fork+0x34/0x50
 ret_from_fork_asm+0x1a/0x30
 </TASK>

Fixes: 6f9579d4e302 ("mlxsw: spectrum_acl: Remember where to continue rehash migration")
Signed-off-by: Ido Schimmel <idosch@nvidia.com>
Tested-by: Alexander Zubkov <green@qrator.net>
Reviewed-by: Petr Machata <petrm@nvidia.com>
Signed-off-by: Petr Machata <petrm@nvidia.com>
Reviewed-by: Simon Horman <horms@kernel.org>
Link: https://lore.kernel.org/r/4628e9a22d1d84818e28310abbbc498e7bc31bc9.1713797103.git.petrm@nvidia.com
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
Signed-off-by: Sasha Levin <sashal@kernel.org>
2024-05-02 16:29:26 +02:00
Ido Schimmel
751d352858 mlxsw: spectrum_acl_tcam: Fix warning during rehash
[ Upstream commit 743edc8547a92b6192aa1f1b6bb78233fa21dc9b ]

As previously explained, the rehash delayed work migrates filters from
one region to another. This is done by iterating over all chunks (all
the filters with the same priority) in the region and in each chunk
iterating over all the filters.

When the work runs out of credits it stores the current chunk and entry
as markers in the per-work context so that it would know where to resume
the migration from the next time the work is scheduled.

Upon error, the chunk marker is reset to NULL, but without resetting the
entry markers despite being relative to it. This can result in migration
being resumed from an entry that does not belong to the chunk being
migrated. In turn, this will eventually lead to a chunk being iterated
over as if it is an entry. Because of how the two structures happen to
be defined, this does not lead to KASAN splats, but to warnings such as
[1].

Fix by creating a helper that resets all the markers and call it from
all the places the currently only reset the chunk marker. For good
measures also call it when starting a completely new rehash. Add a
warning to avoid future cases.

[1]
WARNING: CPU: 7 PID: 1076 at drivers/net/ethernet/mellanox/mlxsw/core_acl_flex_keys.c:407 mlxsw_afk_encode+0x242/0x2f0
Modules linked in:
CPU: 7 PID: 1076 Comm: kworker/7:24 Tainted: G        W          6.9.0-rc3-custom-00880-g29e61d91b77b #29
Hardware name: Mellanox Technologies Ltd. MSN3700/VMOD0005, BIOS 5.11 01/06/2019
Workqueue: mlxsw_core mlxsw_sp_acl_tcam_vregion_rehash_work
RIP: 0010:mlxsw_afk_encode+0x242/0x2f0
[...]
Call Trace:
 <TASK>
 mlxsw_sp_acl_atcam_entry_add+0xd9/0x3c0
 mlxsw_sp_acl_tcam_entry_create+0x5e/0xa0
 mlxsw_sp_acl_tcam_vchunk_migrate_all+0x109/0x290
 mlxsw_sp_acl_tcam_vregion_rehash_work+0x6c/0x470
 process_one_work+0x151/0x370
 worker_thread+0x2cb/0x3e0
 kthread+0xd0/0x100
 ret_from_fork+0x34/0x50
 </TASK>

Fixes: 6f9579d4e302 ("mlxsw: spectrum_acl: Remember where to continue rehash migration")
Signed-off-by: Ido Schimmel <idosch@nvidia.com>
Tested-by: Alexander Zubkov <green@qrator.net>
Reviewed-by: Petr Machata <petrm@nvidia.com>
Signed-off-by: Petr Machata <petrm@nvidia.com>
Reviewed-by: Simon Horman <horms@kernel.org>
Link: https://lore.kernel.org/r/cc17eed86b41dd829d39b07906fec074a9ce580e.1713797103.git.petrm@nvidia.com
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
Signed-off-by: Sasha Levin <sashal@kernel.org>
2024-05-02 16:29:26 +02:00
Ido Schimmel
b822644fd9 mlxsw: spectrum_acl_tcam: Fix memory leak during rehash
[ Upstream commit 8ca3f7a7b61393804c46f170743c3b839df13977 ]

The rehash delayed work migrates filters from one region to another.
This is done by iterating over all chunks (all the filters with the same
priority) in the region and in each chunk iterating over all the
filters.

If the migration fails, the code tries to migrate the filters back to
the old region. However, the rollback itself can also fail in which case
another migration will be erroneously performed. Besides the fact that
this ping pong is not a very good idea, it also creates a problem.

Each virtual chunk references two chunks: The currently used one
('vchunk->chunk') and a backup ('vchunk->chunk2'). During migration the
first holds the chunk we want to migrate filters to and the second holds
the chunk we are migrating filters from.

The code currently assumes - but does not verify - that the backup chunk
does not exist (NULL) if the currently used chunk does not reference the
target region. This assumption breaks when we are trying to rollback a
rollback, resulting in the backup chunk being overwritten and leaked
[1].

Fix by not rolling back a failed rollback and add a warning to avoid
future cases.

[1]
WARNING: CPU: 5 PID: 1063 at lib/parman.c:291 parman_destroy+0x17/0x20
Modules linked in:
CPU: 5 PID: 1063 Comm: kworker/5:11 Tainted: G        W          6.9.0-rc2-custom-00784-gc6a05c468a0b #14
Hardware name: Mellanox Technologies Ltd. MSN3700/VMOD0005, BIOS 5.11 01/06/2019
Workqueue: mlxsw_core mlxsw_sp_acl_tcam_vregion_rehash_work
RIP: 0010:parman_destroy+0x17/0x20
[...]
Call Trace:
 <TASK>
 mlxsw_sp_acl_atcam_region_fini+0x19/0x60
 mlxsw_sp_acl_tcam_region_destroy+0x49/0xf0
 mlxsw_sp_acl_tcam_vregion_rehash_work+0x1f1/0x470
 process_one_work+0x151/0x370
 worker_thread+0x2cb/0x3e0
 kthread+0xd0/0x100
 ret_from_fork+0x34/0x50
 ret_from_fork_asm+0x1a/0x30
 </TASK>

Fixes: 843500518509 ("mlxsw: spectrum_acl: Do rollback as another call to mlxsw_sp_acl_tcam_vchunk_migrate_all()")
Signed-off-by: Ido Schimmel <idosch@nvidia.com>
Tested-by: Alexander Zubkov <green@qrator.net>
Reviewed-by: Petr Machata <petrm@nvidia.com>
Signed-off-by: Petr Machata <petrm@nvidia.com>
Reviewed-by: Simon Horman <horms@kernel.org>
Link: https://lore.kernel.org/r/d5edd4f4503934186ae5cfe268503b16345b4e0f.1713797103.git.petrm@nvidia.com
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
Signed-off-by: Sasha Levin <sashal@kernel.org>
2024-05-02 16:29:25 +02:00
Ido Schimmel
78884187c0 mlxsw: spectrum_acl_tcam: Rate limit error message
[ Upstream commit 5bcf925587e9b5d36420d572a0b4d131c90fb306 ]

In the rare cases when the device resources are exhausted it is likely
that the rehash delayed work will fail. An error message will be printed
whenever this happens which can be overwhelming considering the fact
that the work is per-region and that there can be hundreds of regions.

Fix by rate limiting the error message.

Fixes: e5e7962ee5c2 ("mlxsw: spectrum_acl: Implement region migration according to hints")
Signed-off-by: Ido Schimmel <idosch@nvidia.com>
Tested-by: Alexander Zubkov <green@qrator.net>
Reviewed-by: Petr Machata <petrm@nvidia.com>
Signed-off-by: Petr Machata <petrm@nvidia.com>
Reviewed-by: Simon Horman <horms@kernel.org>
Link: https://lore.kernel.org/r/c510763b2ebd25e7990d80183feff91cde593145.1713797103.git.petrm@nvidia.com
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
Signed-off-by: Sasha Levin <sashal@kernel.org>
2024-05-02 16:29:25 +02:00
Ido Schimmel
813e2ab753 mlxsw: spectrum_acl_tcam: Fix possible use-after-free during rehash
[ Upstream commit 54225988889931467a9b55fdbef534079b665519 ]

The rehash delayed work migrates filters from one region to another
according to the number of available credits.

The migrated from region is destroyed at the end of the work if the
number of credits is non-negative as the assumption is that this is
indicative of migration being complete. This assumption is incorrect as
a non-negative number of credits can also be the result of a failed
migration.

The destruction of a region that still has filters referencing it can
result in a use-after-free [1].

Fix by not destroying the region if migration failed.

[1]
BUG: KASAN: slab-use-after-free in mlxsw_sp_acl_ctcam_region_entry_remove+0x21d/0x230
Read of size 8 at addr ffff8881735319e8 by task kworker/0:31/3858

CPU: 0 PID: 3858 Comm: kworker/0:31 Tainted: G        W          6.9.0-rc2-custom-00782-gf2275c2157d8 #5
Hardware name: Mellanox Technologies Ltd. MSN3700/VMOD0005, BIOS 5.11 01/06/2019
Workqueue: mlxsw_core mlxsw_sp_acl_tcam_vregion_rehash_work
Call Trace:
 <TASK>
 dump_stack_lvl+0xc6/0x120
 print_report+0xce/0x670
 kasan_report+0xd7/0x110
 mlxsw_sp_acl_ctcam_region_entry_remove+0x21d/0x230
 mlxsw_sp_acl_ctcam_entry_del+0x2e/0x70
 mlxsw_sp_acl_atcam_entry_del+0x81/0x210
 mlxsw_sp_acl_tcam_vchunk_migrate_all+0x3cd/0xb50
 mlxsw_sp_acl_tcam_vregion_rehash_work+0x157/0x1300
 process_one_work+0x8eb/0x19b0
 worker_thread+0x6c9/0xf70
 kthread+0x2c9/0x3b0
 ret_from_fork+0x4d/0x80
 ret_from_fork_asm+0x1a/0x30
 </TASK>

Allocated by task 174:
 kasan_save_stack+0x33/0x60
 kasan_save_track+0x14/0x30
 __kasan_kmalloc+0x8f/0xa0
 __kmalloc+0x19c/0x360
 mlxsw_sp_acl_tcam_region_create+0xdf/0x9c0
 mlxsw_sp_acl_tcam_vregion_rehash_work+0x954/0x1300
 process_one_work+0x8eb/0x19b0
 worker_thread+0x6c9/0xf70
 kthread+0x2c9/0x3b0
 ret_from_fork+0x4d/0x80
 ret_from_fork_asm+0x1a/0x30

Freed by task 7:
 kasan_save_stack+0x33/0x60
 kasan_save_track+0x14/0x30
 kasan_save_free_info+0x3b/0x60
 poison_slab_object+0x102/0x170
 __kasan_slab_free+0x14/0x30
 kfree+0xc1/0x290
 mlxsw_sp_acl_tcam_region_destroy+0x272/0x310
 mlxsw_sp_acl_tcam_vregion_rehash_work+0x731/0x1300
 process_one_work+0x8eb/0x19b0
 worker_thread+0x6c9/0xf70
 kthread+0x2c9/0x3b0
 ret_from_fork+0x4d/0x80
 ret_from_fork_asm+0x1a/0x30

Fixes: c9c9af91f1d9 ("mlxsw: spectrum_acl: Allow to interrupt/continue rehash work")
Signed-off-by: Ido Schimmel <idosch@nvidia.com>
Tested-by: Alexander Zubkov <green@qrator.net>
Reviewed-by: Petr Machata <petrm@nvidia.com>
Signed-off-by: Petr Machata <petrm@nvidia.com>
Reviewed-by: Simon Horman <horms@kernel.org>
Link: https://lore.kernel.org/r/3e412b5659ec2310c5c615760dfe5eac18dd7ebd.1713797103.git.petrm@nvidia.com
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
Signed-off-by: Sasha Levin <sashal@kernel.org>
2024-05-02 16:29:25 +02:00
Ido Schimmel
b996e8699d mlxsw: spectrum_acl_tcam: Fix possible use-after-free during activity update
[ Upstream commit 79b5b4b18bc85b19d3a518483f9abbbe6d7b3ba4 ]

The rule activity update delayed work periodically traverses the list of
configured rules and queries their activity from the device.

As part of this task it accesses the entry pointed by 'ventry->entry',
but this entry can be changed concurrently by the rehash delayed work,
leading to a use-after-free [1].

Fix by closing the race and perform the activity query under the
'vregion->lock' mutex.

[1]
BUG: KASAN: slab-use-after-free in mlxsw_sp_acl_tcam_flower_rule_activity_get+0x121/0x140
Read of size 8 at addr ffff8881054ed808 by task kworker/0:18/181

CPU: 0 PID: 181 Comm: kworker/0:18 Not tainted 6.9.0-rc2-custom-00781-gd5ab772d32f7 #2
Hardware name: Mellanox Technologies Ltd. MSN3700/VMOD0005, BIOS 5.11 01/06/2019
Workqueue: mlxsw_core mlxsw_sp_acl_rule_activity_update_work
Call Trace:
 <TASK>
 dump_stack_lvl+0xc6/0x120
 print_report+0xce/0x670
 kasan_report+0xd7/0x110
 mlxsw_sp_acl_tcam_flower_rule_activity_get+0x121/0x140
 mlxsw_sp_acl_rule_activity_update_work+0x219/0x400
 process_one_work+0x8eb/0x19b0
 worker_thread+0x6c9/0xf70
 kthread+0x2c9/0x3b0
 ret_from_fork+0x4d/0x80
 ret_from_fork_asm+0x1a/0x30
 </TASK>

Allocated by task 1039:
 kasan_save_stack+0x33/0x60
 kasan_save_track+0x14/0x30
 __kasan_kmalloc+0x8f/0xa0
 __kmalloc+0x19c/0x360
 mlxsw_sp_acl_tcam_entry_create+0x7b/0x1f0
 mlxsw_sp_acl_tcam_vchunk_migrate_all+0x30d/0xb50
 mlxsw_sp_acl_tcam_vregion_rehash_work+0x157/0x1300
 process_one_work+0x8eb/0x19b0
 worker_thread+0x6c9/0xf70
 kthread+0x2c9/0x3b0
 ret_from_fork+0x4d/0x80
 ret_from_fork_asm+0x1a/0x30

Freed by task 1039:
 kasan_save_stack+0x33/0x60
 kasan_save_track+0x14/0x30
 kasan_save_free_info+0x3b/0x60
 poison_slab_object+0x102/0x170
 __kasan_slab_free+0x14/0x30
 kfree+0xc1/0x290
 mlxsw_sp_acl_tcam_vchunk_migrate_all+0x3d7/0xb50
 mlxsw_sp_acl_tcam_vregion_rehash_work+0x157/0x1300
 process_one_work+0x8eb/0x19b0
 worker_thread+0x6c9/0xf70
 kthread+0x2c9/0x3b0
 ret_from_fork+0x4d/0x80
 ret_from_fork_asm+0x1a/0x30

Fixes: 2bffc5322fd8 ("mlxsw: spectrum_acl: Don't take mutex in mlxsw_sp_acl_tcam_vregion_rehash_work()")
Signed-off-by: Ido Schimmel <idosch@nvidia.com>
Tested-by: Alexander Zubkov <green@qrator.net>
Reviewed-by: Petr Machata <petrm@nvidia.com>
Signed-off-by: Petr Machata <petrm@nvidia.com>
Reviewed-by: Simon Horman <horms@kernel.org>
Link: https://lore.kernel.org/r/1fcce0a60b231ebeb2515d91022284ba7b4ffe7a.1713797103.git.petrm@nvidia.com
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
Signed-off-by: Sasha Levin <sashal@kernel.org>
2024-05-02 16:29:25 +02:00
Ido Schimmel
19ebdce660 mlxsw: spectrum_acl_tcam: Fix race during rehash delayed work
[ Upstream commit d90cfe20562407d9f080d24123078d666d730707 ]

The purpose of the rehash delayed work is to reduce the number of masks
(eRPs) used by an ACL region as the eRP bank is a global and limited
resource.

This is done in three steps:

1. Creating a new set of masks and a new ACL region which will use the
   new masks and to which the existing filters will be migrated to. The
   new region is assigned to 'vregion->region' and the region from which
   the filters are migrated from is assigned to 'vregion->region2'.

2. Migrating all the filters from the old region to the new region.

3. Destroying the old region and setting 'vregion->region2' to NULL.

Only the second steps is performed under the 'vregion->lock' mutex
although its comments says that among other things it "Protects
consistency of region, region2 pointers".

This is problematic as the first step can race with filter insertion
from user space that uses 'vregion->region', but under the mutex.

Fix by holding the mutex across the entirety of the delayed work and not
only during the second step.

Fixes: 2bffc5322fd8 ("mlxsw: spectrum_acl: Don't take mutex in mlxsw_sp_acl_tcam_vregion_rehash_work()")
Signed-off-by: Ido Schimmel <idosch@nvidia.com>
Tested-by: Alexander Zubkov <green@qrator.net>
Reviewed-by: Petr Machata <petrm@nvidia.com>
Signed-off-by: Petr Machata <petrm@nvidia.com>
Reviewed-by: Simon Horman <horms@kernel.org>
Link: https://lore.kernel.org/r/1ec1d54edf2bad0a369e6b4fa030aba64e1f124b.1713797103.git.petrm@nvidia.com
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
Signed-off-by: Sasha Levin <sashal@kernel.org>
2024-05-02 16:29:25 +02:00
Hyunwoo Kim
bca6fa2d9a net: openvswitch: Fix Use-After-Free in ovs_ct_exit
[ Upstream commit 5ea7b72d4fac2fdbc0425cd8f2ea33abe95235b2 ]

Since kfree_rcu, which is called in the hlist_for_each_entry_rcu traversal
of ovs_ct_limit_exit, is not part of the RCU read critical section, it
is possible that the RCU grace period will pass during the traversal and
the key will be free.

To prevent this, it should be changed to hlist_for_each_entry_safe.

Fixes: 11efd5cb04a1 ("openvswitch: Support conntrack zone limit")
Signed-off-by: Hyunwoo Kim <v4bel@theori.io>
Reviewed-by: Eric Dumazet <edumazet@google.com>
Reviewed-by: Aaron Conole <aconole@redhat.com>
Link: https://lore.kernel.org/r/ZiYvzQN/Ry5oeFQW@v4bel-B760M-AORUS-ELITE-AX
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
Signed-off-by: Sasha Levin <sashal@kernel.org>
2024-05-02 16:29:25 +02:00
Ismael Luceno
f4861f052f ipvs: Fix checksumming on GSO of SCTP packets
[ Upstream commit e10d3ba4d434ed172914617ed8d74bd411421193 ]

It was observed in the wild that pairs of consecutive packets would leave
the IPVS with the same wrong checksum, and the issue only went away when
disabling GSO.

IPVS needs to avoid computing the SCTP checksum when using GSO.

Fixes: 90017accff61 ("sctp: Add GSO support")
Co-developed-by: Firo Yang <firo.yang@suse.com>
Signed-off-by: Ismael Luceno <iluceno@suse.de>
Tested-by: Andreas Taschner <andreas.taschner@suse.com>
Acked-by: Julian Anastasov <ja@ssi.bg>
Signed-off-by: Pablo Neira Ayuso <pablo@netfilter.org>
Signed-off-by: Sasha Levin <sashal@kernel.org>
2024-05-02 16:29:25 +02:00
Bartosz Golaszewski
4115403dc9 Bluetooth: qca: set power_ctrl_enabled on NULL returned by gpiod_get_optional()
[ Upstream commit 3d05fc82237aa97162d0d7dc300b55bb34e91d02 ]

Any return value from gpiod_get_optional() other than a pointer to a
GPIO descriptor or a NULL-pointer is an error and the driver should
abort probing. That being said: commit 56d074d26c58 ("Bluetooth: hci_qca:
don't use IS_ERR_OR_NULL() with gpiod_get_optional()") no longer sets
power_ctrl_enabled on NULL-pointer returned by
devm_gpiod_get_optional(). Restore this behavior but bail-out on errors.
While at it: also bail-out on error returned when trying to get the
"swctrl" GPIO.

Reported-by: Wren Turkal <wt@penguintechs.org>
Reported-by: Zijun Hu <quic_zijuhu@quicinc.com>
Closes: https://lore.kernel.org/linux-bluetooth/1713449192-25926-2-git-send-email-quic_zijuhu@quicinc.com/
Fixes: 56d074d26c58 ("Bluetooth: hci_qca: don't use IS_ERR_OR_NULL() with gpiod_get_optional()")
Reviewed-by: Krzysztof Kozlowski <krzysztof.kozlowski@linaro.org>
Signed-off-by: Bartosz Golaszewski <bartosz.golaszewski@linaro.org>
Tested-by: Wren Turkal <wt@penguintechs.org>
Reported-by: Wren Turkal <wt@penguintechs.org>
Reported-by: Zijun Hu <quic_zijuhu@quicinc.com>
Reviewed-by: Krzysztof Kozlowski<krzysztof.kozlowski@linaro.org>
Reviewed-by: Krzysztof Kozlowski <krzysztof.kozlowski@linaro.org>
Signed-off-by: Luiz Augusto von Dentz <luiz.von.dentz@intel.com>
Signed-off-by: Sasha Levin <sashal@kernel.org>
2024-05-02 16:29:25 +02:00
Chun-Yi Lee
31f18a1f58 Bluetooth: hci_sync: Using hci_cmd_sync_submit when removing Adv Monitor
[ Upstream commit 88cd6e6b2d327faa13e4505b07f1e380e51b21ff ]

Since the d883a4669a1de be introduced in v6.4, bluetooth daemon
got the following failed message of MGMT_OP_REMOVE_ADV_MONITOR
command when controller is power-off:

bluetoothd[20976]:
src/adapter.c:reset_adv_monitors_complete() Failed to reset Adv
Monitors: Failed>

Normally this situation is happened when the bluetoothd deamon
be started manually after system booting. Which means that
bluetoothd received MGMT_EV_INDEX_ADDED event after kernel
runs hci_power_off().

Base on doc/mgmt-api.txt, the MGMT_OP_REMOVE_ADV_MONITOR command
can be used when the controller is not powered. This patch changes
the code in remove_adv_monitor() to use hci_cmd_sync_submit()
instead of hci_cmd_sync_queue().

Fixes: d883a4669a1de ("Bluetooth: hci_sync: Only allow hci_cmd_sync_queue if running")
Cc: Luiz Augusto von Dentz <luiz.von.dentz@intel.com>
Cc: Manish Mandlik <mmandlik@google.com>
Cc: Archie Pusaka <apusaka@chromium.org>
Cc: Miao-chen Chou <mcchou@chromium.org>
Signed-off-by: Chun-Yi Lee <jlee@suse.com>
Signed-off-by: Luiz Augusto von Dentz <luiz.von.dentz@intel.com>
Signed-off-by: Sasha Levin <sashal@kernel.org>
2024-05-02 16:29:25 +02:00
Luiz Augusto von Dentz
14051cbcf3 Bluetooth: MGMT: Fix failing to MGMT_OP_ADD_UUID/MGMT_OP_REMOVE_UUID
[ Upstream commit 6eb5fcc416f127f220b9177a5c9ae751cac1cda8 ]

These commands don't require the adapter to be up and running so don't
use hci_cmd_sync_queue which would check that flag, instead use
hci_cmd_sync_submit which would ensure mgmt_class_complete is set
properly regardless if any command was actually run or not.

Link: https://github.com/bluez/bluez/issues/809
Fixes: d883a4669a1d ("Bluetooth: hci_sync: Only allow hci_cmd_sync_queue if running")
Signed-off-by: Luiz Augusto von Dentz <luiz.von.dentz@intel.com>
Signed-off-by: Sasha Levin <sashal@kernel.org>
2024-05-02 16:29:25 +02:00
Hyunwoo Kim
25a1c2d4b1 net: gtp: Fix Use-After-Free in gtp_dellink
[ Upstream commit f2a904107ee2b647bb7794a1a82b67740d7c8a64 ]

Since call_rcu, which is called in the hlist_for_each_entry_rcu traversal
of gtp_dellink, is not part of the RCU read critical section, it
is possible that the RCU grace period will pass during the traversal and
the key will be free.

To prevent this, it should be changed to hlist_for_each_entry_safe.

Fixes: 94dc550a5062 ("gtp: fix an use-after-free in ipv4_pdp_find()")
Signed-off-by: Hyunwoo Kim <v4bel@theori.io>
Reviewed-by: Eric Dumazet <edumazet@google.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Signed-off-by: Sasha Levin <sashal@kernel.org>
2024-05-02 16:29:24 +02:00
Eric Dumazet
5e5e1865b7 net: usb: ax88179_178a: stop lying about skb->truesize
[ Upstream commit 4ce62d5b2f7aecd4900e7d6115588ad7f9acccca ]

Some usb drivers try to set small skb->truesize and break
core networking stacks.

In this patch, I removed one of the skb->truesize overide.

I also replaced one skb_clone() by an allocation of a fresh
and small skb, to get minimally sized skbs, like we did
in commit 1e2c61172342 ("net: cdc_ncm: reduce skb truesize
in rx path")

Fixes: f8ebb3ac881b ("net: usb: ax88179_178a: Fix packet receiving")
Reported-by: shironeko <shironeko@tesaguri.club>
Closes: https://lore.kernel.org/netdev/c110f41a0d2776b525930f213ca9715c@tesaguri.club/
Signed-off-by: Eric Dumazet <edumazet@google.com>
Cc: Jose Alonso <joalonsof@gmail.com>
Reviewed-by: Simon Horman <horms@kernel.org>
Link: https://lore.kernel.org/r/20240421193828.1966195-1-edumazet@google.com
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
Signed-off-by: Sasha Levin <sashal@kernel.org>
2024-05-02 16:29:24 +02:00
Eric Dumazet
7a25bfd127 ipv4: check for NULL idev in ip_route_use_hint()
[ Upstream commit 58a4c9b1e5a3e53c9148e80b90e1e43897ce77d1 ]

syzbot was able to trigger a NULL deref in fib_validate_source()
in an old tree [1].

It appears the bug exists in latest trees.

All calls to __in_dev_get_rcu() must be checked for a NULL result.

[1]
general protection fault, probably for non-canonical address 0xdffffc0000000000: 0000 [#1] SMP KASAN
KASAN: null-ptr-deref in range [0x0000000000000000-0x0000000000000007]
CPU: 2 PID: 3257 Comm: syz-executor.3 Not tainted 5.10.0-syzkaller #0
Hardware name: QEMU Standard PC (Q35 + ICH9, 2009), BIOS 1.16.3-debian-1.16.3-2~bpo12+1 04/01/2014
 RIP: 0010:fib_validate_source+0xbf/0x15a0 net/ipv4/fib_frontend.c:425
Code: 18 f2 f2 f2 f2 42 c7 44 20 23 f3 f3 f3 f3 48 89 44 24 78 42 c6 44 20 27 f3 e8 5d 88 48 fc 4c 89 e8 48 c1 e8 03 48 89 44 24 18 <42> 80 3c 20 00 74 08 4c 89 ef e8 d2 15 98 fc 48 89 5c 24 10 41 bf
RSP: 0018:ffffc900015fee40 EFLAGS: 00010246
RAX: 0000000000000000 RBX: ffff88800f7a4000 RCX: ffff88800f4f90c0
RDX: 0000000000000000 RSI: 0000000004001eac RDI: ffff8880160c64c0
RBP: ffffc900015ff060 R08: 0000000000000000 R09: ffff88800f7a4000
R10: 0000000000000002 R11: ffff88800f4f90c0 R12: dffffc0000000000
R13: 0000000000000000 R14: 0000000000000000 R15: ffff88800f7a4000
FS:  00007f938acfe6c0(0000) GS:ffff888058c00000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00007f938acddd58 CR3: 000000001248e000 CR4: 0000000000352ef0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
Call Trace:
  ip_route_use_hint+0x410/0x9b0 net/ipv4/route.c:2231
  ip_rcv_finish_core+0x2c4/0x1a30 net/ipv4/ip_input.c:327
  ip_list_rcv_finish net/ipv4/ip_input.c:612 [inline]
  ip_sublist_rcv+0x3ed/0xe50 net/ipv4/ip_input.c:638
  ip_list_rcv+0x422/0x470 net/ipv4/ip_input.c:673
  __netif_receive_skb_list_ptype net/core/dev.c:5572 [inline]
  __netif_receive_skb_list_core+0x6b1/0x890 net/core/dev.c:5620
  __netif_receive_skb_list net/core/dev.c:5672 [inline]
  netif_receive_skb_list_internal+0x9f9/0xdc0 net/core/dev.c:5764
  netif_receive_skb_list+0x55/0x3e0 net/core/dev.c:5816
  xdp_recv_frames net/bpf/test_run.c:257 [inline]
  xdp_test_run_batch net/bpf/test_run.c:335 [inline]
  bpf_test_run_xdp_live+0x1818/0x1d00 net/bpf/test_run.c:363
  bpf_prog_test_run_xdp+0x81f/0x1170 net/bpf/test_run.c:1376
  bpf_prog_test_run+0x349/0x3c0 kernel/bpf/syscall.c:3736
  __sys_bpf+0x45c/0x710 kernel/bpf/syscall.c:5115
  __do_sys_bpf kernel/bpf/syscall.c:5201 [inline]
  __se_sys_bpf kernel/bpf/syscall.c:5199 [inline]
  __x64_sys_bpf+0x7c/0x90 kernel/bpf/syscall.c:5199

Fixes: 02b24941619f ("ipv4: use dst hint for ipv4 list receive")
Reported-by: syzbot <syzkaller@googlegroups.com>
Signed-off-by: Eric Dumazet <edumazet@google.com>
Acked-by: Paolo Abeni <pabeni@redhat.com>
Link: https://lore.kernel.org/r/20240421184326.1704930-1-edumazet@google.com
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
Signed-off-by: Sasha Levin <sashal@kernel.org>
2024-05-02 16:29:24 +02:00
Eric Dumazet
1e9b694597 net: fix sk_memory_allocated_{add|sub} vs softirqs
[ Upstream commit 3584718cf2ec7e79b6814f2596dcf398c5fb2eca ]

Jonathan Heathcote reported a regression caused by blamed commit
on aarch64 architecture.

x86 happens to have irq-safe __this_cpu_add_return()
and __this_cpu_sub(), but this is not generic.

I think my confusion came from "struct sock" argument,
because these helpers are called with a locked socket.
But the memory accounting is per-proto (and per-cpu after
the blamed commit). We might cleanup these helpers later
to directly accept a "struct proto *proto" argument.

Switch to this_cpu_add_return() and this_cpu_xchg()
operations, and get rid of preempt_disable()/preempt_enable() pairs.

Fast path becomes a bit faster as a result :)

Many thanks to Jonathan Heathcote for his awesome report and
investigations.

Fixes: 3cd3399dd7a8 ("net: implement per-cpu reserves for memory_allocated")
Reported-by: Jonathan Heathcote <jonathan.heathcote@bbc.co.uk>
Closes: https://lore.kernel.org/netdev/VI1PR01MB42407D7947B2EA448F1E04EFD10D2@VI1PR01MB4240.eurprd01.prod.exchangelabs.com/
Signed-off-by: Eric Dumazet <edumazet@google.com>
Acked-by: Soheil Hassas Yeganeh <soheil@google.com>
Reviewed-by: Shakeel Butt <shakeel.butt@linux.dev>
Link: https://lore.kernel.org/r/20240421175248.1692552-1-edumazet@google.com
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
Signed-off-by: Sasha Levin <sashal@kernel.org>
2024-05-02 16:29:24 +02:00
Adam Li
82810873ac net: make SK_MEMORY_PCPU_RESERV tunable
[ Upstream commit 12a686c2e761f1f1f6e6e2117a9ab9c6de2ac8a7 ]

This patch adds /proc/sys/net/core/mem_pcpu_rsv sysctl file,
to make SK_MEMORY_PCPU_RESERV tunable.

Commit 3cd3399dd7a8 ("net: implement per-cpu reserves for
memory_allocated") introduced per-cpu forward alloc cache:

"Implement a per-cpu cache of +1/-1 MB, to reduce number
of changes to sk->sk_prot->memory_allocated, which
would otherwise be cause of false sharing."

sk_prot->memory_allocated points to global atomic variable:
atomic_long_t tcp_memory_allocated ____cacheline_aligned_in_smp;

If increasing the per-cpu cache size from 1MB to e.g. 16MB,
changes to sk->sk_prot->memory_allocated can be further reduced.
Performance may be improved on system with many cores.

Signed-off-by: Adam Li <adamli@os.amperecomputing.com>
Reviewed-by: Christoph Lameter (Ampere) <cl@linux.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Stable-dep-of: 3584718cf2ec ("net: fix sk_memory_allocated_{add|sub} vs softirqs")
Signed-off-by: Sasha Levin <sashal@kernel.org>
2024-05-02 16:29:24 +02:00
Duoming Zhou
0d14f10402 ax25: Fix netdev refcount issue
[ Upstream commit 467324bcfe1a31ec65d0cf4aa59421d6b7a7d52b ]

The dev_tracker is added to ax25_cb in ax25_bind(). When the
ax25 device is detaching, the dev_tracker of ax25_cb should be
deallocated in ax25_kill_by_device() instead of the dev_tracker
of ax25_dev. The log reported by ref_tracker is shown below:

[   80.884935] ref_tracker: reference already released.
[   80.885150] ref_tracker: allocated in:
[   80.885349]  ax25_dev_device_up+0x105/0x540
[   80.885730]  ax25_device_event+0xa4/0x420
[   80.885730]  notifier_call_chain+0xc9/0x1e0
[   80.885730]  __dev_notify_flags+0x138/0x280
[   80.885730]  dev_change_flags+0xd7/0x180
[   80.885730]  dev_ifsioc+0x6a9/0xa30
[   80.885730]  dev_ioctl+0x4d8/0xd90
[   80.885730]  sock_do_ioctl+0x1c2/0x2d0
[   80.885730]  sock_ioctl+0x38b/0x4f0
[   80.885730]  __se_sys_ioctl+0xad/0xf0
[   80.885730]  do_syscall_64+0xc4/0x1b0
[   80.885730]  entry_SYSCALL_64_after_hwframe+0x67/0x6f
[   80.885730] ref_tracker: freed in:
[   80.885730]  ax25_device_event+0x272/0x420
[   80.885730]  notifier_call_chain+0xc9/0x1e0
[   80.885730]  dev_close_many+0x272/0x370
[   80.885730]  unregister_netdevice_many_notify+0x3b5/0x1180
[   80.885730]  unregister_netdev+0xcf/0x120
[   80.885730]  sixpack_close+0x11f/0x1b0
[   80.885730]  tty_ldisc_kill+0xcb/0x190
[   80.885730]  tty_ldisc_hangup+0x338/0x3d0
[   80.885730]  __tty_hangup+0x504/0x740
[   80.885730]  tty_release+0x46e/0xd80
[   80.885730]  __fput+0x37f/0x770
[   80.885730]  __x64_sys_close+0x7b/0xb0
[   80.885730]  do_syscall_64+0xc4/0x1b0
[   80.885730]  entry_SYSCALL_64_after_hwframe+0x67/0x6f
[   80.893739] ------------[ cut here ]------------
[   80.894030] WARNING: CPU: 2 PID: 140 at lib/ref_tracker.c:255 ref_tracker_free+0x47b/0x6b0
[   80.894297] Modules linked in:
[   80.894929] CPU: 2 PID: 140 Comm: ax25_conn_rel_6 Not tainted 6.9.0-rc4-g8cd26fd90c1a #11
[   80.895190] Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS rel-1.14.0-0-g155821a1990b-prebuilt.qem4
[   80.895514] RIP: 0010:ref_tracker_free+0x47b/0x6b0
[   80.895808] Code: 83 c5 18 4c 89 eb 48 c1 eb 03 8a 04 13 84 c0 0f 85 df 01 00 00 41 83 7d 00 00 75 4b 4c 89 ff 9
[   80.896171] RSP: 0018:ffff888009edf8c0 EFLAGS: 00000286
[   80.896339] RAX: 1ffff1100141ac00 RBX: 1ffff1100149463b RCX: dffffc0000000000
[   80.896502] RDX: 0000000000000001 RSI: 0000000000000246 RDI: ffff88800a0d6518
[   80.896925] RBP: ffff888009edf9b0 R08: ffff88806d3288d3 R09: 1ffff1100da6511a
[   80.897212] R10: dffffc0000000000 R11: ffffed100da6511b R12: ffff88800a4a31d4
[   80.897859] R13: ffff88800a4a31d8 R14: dffffc0000000000 R15: ffff88800a0d6518
[   80.898279] FS:  00007fd88b7fe700(0000) GS:ffff88806d300000(0000) knlGS:0000000000000000
[   80.899436] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[   80.900181] CR2: 00007fd88c001d48 CR3: 000000000993e000 CR4: 00000000000006f0
...
[   80.935774] ref_tracker: sp%d@000000000bb9df3d has 1/1 users at
[   80.935774]      ax25_bind+0x424/0x4e0
[   80.935774]      __sys_bind+0x1d9/0x270
[   80.935774]      __x64_sys_bind+0x75/0x80
[   80.935774]      do_syscall_64+0xc4/0x1b0
[   80.935774]      entry_SYSCALL_64_after_hwframe+0x67/0x6f

Change ax25_dev->dev_tracker to the dev_tracker of ax25_cb
in order to mitigate the bug.

Fixes: feef318c855a ("ax25: fix UAF bugs of net_device caused by rebinding operation")
Signed-off-by: Duoming Zhou <duoming@zju.edu.cn>
Link: https://lore.kernel.org/r/20240419020456.29826-1-duoming@zju.edu.cn
Signed-off-by: Paolo Abeni <pabeni@redhat.com>
Signed-off-by: Sasha Levin <sashal@kernel.org>
2024-05-02 16:29:24 +02:00
Paul Geurts
424c69dbb2 NFC: trf7970a: disable all regulators on removal
[ Upstream commit 6bea4f03c6a4e973ef369e15aac88f37981db49e ]

During module probe, regulator 'vin' and 'vdd-io' are used and enabled,
but the vdd-io regulator overwrites the 'vin' regulator pointer. During
remove, only the vdd-io is disabled, as the vin regulator pointer is not
available anymore. When regulator_put() is called during resource
cleanup a kernel warning is given, as the regulator is still enabled.

Store the two regulators in separate pointers and disable both the
regulators on module remove.

Fixes: 49d22c70aaf0 ("NFC: trf7970a: Add device tree option of 1.8 Volt IO voltage")
Signed-off-by: Paul Geurts <paul_geurts@live.nl>
Reviewed-by: Krzysztof Kozlowski <krzysztof.kozlowski@linaro.org>
Link: https://lore.kernel.org/r/DB7PR09MB26847A4EBF88D9EDFEB1DA0F950E2@DB7PR09MB2684.eurprd09.prod.outlook.com
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
Signed-off-by: Sasha Levin <sashal@kernel.org>
2024-05-02 16:29:24 +02:00
Vikas Gupta
25a82005d5 bnxt_en: Fix the PCI-AER routines
[ Upstream commit a1acdc226baec331512f815d6ac9dd6f8435cc7f ]

We do not support two simultaneous recoveries so check for reset
flag, BNXT_STATE_IN_FW_RESET, and do not proceed with AER further.
When the pci channel state is pci_channel_io_frozen, the PCIe link
can not be trusted so we disable the traffic immediately and stop
BAR access by calling bnxt_fw_fatal_close().  BAR access after
AER fatal error can cause an NMI.

Fixes: f75d9a0aa967 ("bnxt_en: Re-write PCI BARs after PCI fatal error.")
Signed-off-by: Vikas Gupta <vikas.gupta@broadcom.com>
Signed-off-by: Michael Chan <michael.chan@broadcom.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Signed-off-by: Sasha Levin <sashal@kernel.org>
2024-05-02 16:29:24 +02:00
Vikas Gupta
b20beb0598 bnxt_en: refactor reset close code
[ Upstream commit 7474b1c82be3780692d537d331f9aa7fc1e5a368 ]

Introduce bnxt_fw_fatal_close() API which can be used
to stop data path and disable device when firmware
is in fatal state.

Signed-off-by: Vikas Gupta <vikas.gupta@broadcom.com>
Signed-off-by: Michael Chan <michael.chan@broadcom.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Stable-dep-of: a1acdc226bae ("bnxt_en: Fix the PCI-AER routines")
Signed-off-by: Sasha Levin <sashal@kernel.org>
2024-05-02 16:29:24 +02:00
Hangbin Liu
16be600293 bridge/br_netlink.c: no need to return void function
[ Upstream commit 4fd1edcdf13c0d234543ecf502092be65c5177db ]

br_info_notify is a void function. There is no need to return.

Fixes: b6d0425b816e ("bridge: cfm: Netlink Notifications.")
Signed-off-by: Hangbin Liu <liuhangbin@gmail.com>
Acked-by: Nikolay Aleksandrov <razor@blackwall.org>
Signed-off-by: David S. Miller <davem@davemloft.net>
Signed-off-by: Sasha Levin <sashal@kernel.org>
2024-05-02 16:29:23 +02:00
Eric Dumazet
599c9ad5e1 icmp: prevent possible NULL dereferences from icmp_build_probe()
[ Upstream commit c58e88d49097bd12dfcfef4f075b43f5d5830941 ]

First problem is a double call to __in_dev_get_rcu(), because
the second one could return NULL.

if (__in_dev_get_rcu(dev) && __in_dev_get_rcu(dev)->ifa_list)

Second problem is a read from dev->ip6_ptr with no NULL check:

if (!list_empty(&rcu_dereference(dev->ip6_ptr)->addr_list))

Use the correct RCU API to fix these.

v2: add missing include <net/addrconf.h>

Fixes: d329ea5bd884 ("icmp: add response to RFC 8335 PROBE messages")
Signed-off-by: Eric Dumazet <edumazet@google.com>
Cc: Andreas Roeseler <andreas.a.roeseler@gmail.com>
Reviewed-by: David Ahern <dsahern@kernel.org>
Signed-off-by: David S. Miller <davem@davemloft.net>
Signed-off-by: Sasha Levin <sashal@kernel.org>
2024-05-02 16:29:23 +02:00
Andrei Simion
d3c4b14c8a ARM: dts: microchip: at91-sama7g5ek: Replace regulator-suspend-voltage with the valid property
[ Upstream commit e027b71762e84ee9d4ba9ad5401b956b9e83ed2a ]

By checking the pmic node with microchip,mcp16502.yaml#
'regulator-suspend-voltage' does not match any of the
regexes 'pinctrl-[0-9]+' from schema microchip,mcp16502.yaml#
which inherits regulator.yaml#. So replace regulator-suspend-voltage
with regulator-suspend-microvolt to avoid the inconsitency.

Fixes: 85b1304b9daa ("ARM: dts: at91: sama7g5ek: set regulator voltages for standby state")
Signed-off-by: Andrei Simion <andrei.simion@microchip.com>
Acked-by: Nicolas Ferre <nicolas.ferre@microchip.com>
Link: https://lore.kernel.org/r/20240404123824.19182-2-andrei.simion@microchip.com
[claudiu.beznea: added a dot before starting the last sentence in commit
 description]
Signed-off-by: Claudiu Beznea <claudiu.beznea@tuxon.dev>
Signed-off-by: Sasha Levin <sashal@kernel.org>
2024-05-02 16:29:23 +02:00
Ido Schimmel
3f7ecad54c mlxsw: core: Unregister EMAD trap using FORWARD action
[ Upstream commit 976c44af48141cd8595601c0af2a19a43c5b228b ]

The device's manual (PRM - Programmer's Reference Manual) classifies the
trap that is used to deliver EMAD responses as an "event trap". Among
other things, it means that the only actions that can be associated with
the trap are TRAP and FORWARD (NOP).

Currently, during driver de-initialization the driver unregisters the
trap by setting its action to DISCARD, which violates the above
guideline. Future firmware versions will prevent such misuses by
returning an error. This does not prevent the driver from working, but
an error will be printed to the kernel log during module removal /
devlink reload:

mlxsw_spectrum 0000:03:00.0: Reg cmd access status failed (status=7(bad parameter))
mlxsw_spectrum 0000:03:00.0: Reg cmd access failed (reg_id=7003(hpkt),type=write)

Suppress the error message by aligning the driver to the manual and use
a FORWARD (NOP) action when unregistering the trap.

Fixes: 4ec14b7634b2 ("mlxsw: Add interface to access registers and process events")
Cc: Jiri Pirko <jiri@resnulli.us>
Cc: Amit Cohen <amcohen@nvidia.com>
Signed-off-by: Ido Schimmel <idosch@nvidia.com>
Reviewed-by: Petr Machata <petrm@nvidia.com>
Reviewed-by: Simon Horman <horms@kernel.org>
Signed-off-by: Petr Machata <petrm@nvidia.com>
Link: https://lore.kernel.org/r/753a89e14008fde08cb4a2c1e5f537b81d8eb2d6.1713446092.git.petrm@nvidia.com
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
Signed-off-by: Sasha Levin <sashal@kernel.org>
2024-05-02 16:29:23 +02:00
David Bauer
9064163f1c vxlan: drop packets from invalid src-address
[ Upstream commit f58f45c1e5b92975e91754f5407250085a6ae7cf ]

The VXLAN driver currently does not check if the inner layer2
source-address is valid.

In case source-address snooping/learning is enabled, a entry in the FDB
for the invalid address is created with the layer3 address of the tunnel
endpoint.

If the frame happens to have a non-unicast address set, all this
non-unicast traffic is subsequently not flooded to the tunnel network
but sent to the learnt host in the FDB. To make matters worse, this FDB
entry does not expire.

Apply the same filtering for packets as it is done for bridges. This not
only drops these invalid packets but avoids them from being learnt into
the FDB.

Fixes: d342894c5d2f ("vxlan: virtual extensible lan")
Suggested-by: Ido Schimmel <idosch@nvidia.com>
Signed-off-by: David Bauer <mail@david-bauer.net>
Signed-off-by: David S. Miller <davem@davemloft.net>
Signed-off-by: Sasha Levin <sashal@kernel.org>
2024-05-02 16:29:23 +02:00
Miri Korenblit
9b9c4adad6 wifi: iwlwifi: mvm: return uid from iwl_mvm_build_scan_cmd
[ Upstream commit bada85a3f584763deadd201147778c3e791d279c ]

This function is supposed to return a uid on success, and an errno in
failure.
But it currently returns the return value of the specific cmd version
handler, which in turn returns 0 on success and errno otherwise.
This means that on success, iwl_mvm_build_scan_cmd will return 0
regardless if the actual uid.
Fix this by returning the uid if the handler succeeded.

Fixes: 687db6ff5b70 ("iwlwifi: scan: make new scan req versioning flow")
Signed-off-by: Miri Korenblit <miriam.rachel.korenblit@intel.com>
Reviewed-by: Ilan Peer <ilan.peer@intel.com>
Link: https://msgid.link/20240415114847.5e2d602b3190.I4c4931021be74a67a869384c8f8ee7463e0c7857@changeid
Signed-off-by: Johannes Berg <johannes.berg@intel.com>
Signed-off-by: Sasha Levin <sashal@kernel.org>
2024-05-02 16:29:23 +02:00
Avraham Stern
d20e3beb83 wifi: iwlwifi: mvm: remove old PASN station when adding a new one
[ Upstream commit dbfff5bf9292714f02ace002fea8ce6599ea1145 ]

If a PASN station is added, and an old PASN station already exists
for the same mac address, remove the old station before adding the
new one. Keeping the old station caueses old security context to
be used in measurements.

Fixes: 0739a7d70e00 ("iwlwifi: mvm: initiator: add option for adding a PASN responder")
Signed-off-by: Avraham Stern <avraham.stern@intel.com>
Signed-off-by: Miri Korenblit <miriam.rachel.korenblit@intel.com>
Link: https://msgid.link/20240415114847.ef3544a416f2.I4e8c7c8ca22737f4f908ae5cd4fc0b920c703dd3@changeid
Signed-off-by: Johannes Berg <johannes.berg@intel.com>
Signed-off-by: Sasha Levin <sashal@kernel.org>
2024-05-02 16:29:23 +02:00
Alexey Brodkin
bab058e31a ARC: [plat-hsdk]: Remove misplaced interrupt-cells property
[ Upstream commit 61231eb8113ce47991f35024f9c20810b37996bf ]

"gmac" node stands for just an ordinary Ethernet controller,
which is by no means a provider of interrupts, i.e. it doesn't serve
as an interrupt controller, thus "#interrupt-cells" property doesn't
belong to it and so we remove it.

Fixes:
------------>8------------
  DTC     arch/arc/boot/dts/hsdk.dtb
arch/arc/boot/dts/hsdk.dts:207.23-235.5: Warning (interrupt_provider): /soc/ethernet@8000: '#interrupt-cells' found, but node is not an interrupt provider
arch/arc/boot/dts/hsdk.dtb: Warning (interrupt_map): Failed prerequisite 'interrupt_provider'
------------>8------------

Reported-by: Vineet Gupta <vgupta@kernel.org>
Signed-off-by: Alexey Brodkin <abrodkin@synopsys.com>
Signed-off-by: Vineet Gupta <vgupta@kernel.org>
Signed-off-by: Sasha Levin <sashal@kernel.org>
2024-05-02 16:29:23 +02:00
Jose Ignacio Tornos Martinez
0277e73e8e arm64: dts: rockchip: regulator for sd needs to be always on for BPI-R2Pro
[ Upstream commit 433d54818f64a2fe0562f8c04c7a81f562368515 ]

With default dts configuration for BPI-R2Pro, the regulator for sd card is
powered off when reboot is commanded, and the only solution to detect the
sd card again, and therefore, allow rebooting from there, is to do a
hardware reset.

Configure the regulator for sd to be always on for BPI-R2Pro in order to
avoid this issue.

Fixes: f901aaadaa2a ("arm64: dts: rockchip: Add Bananapi R2 Pro")
Signed-off-by: Jose Ignacio Tornos Martinez <jtornosm@redhat.com>
Link: https://lore.kernel.org/r/20240305143222.189413-1-jtornosm@redhat.com
Signed-off-by: Heiko Stuebner <heiko@sntech.de>
Signed-off-by: Sasha Levin <sashal@kernel.org>
2024-05-02 16:29:23 +02:00
Rafał Miłecki
af45b5bc30 arm64: dts: mediatek: mt2712: fix validation errors
[ Upstream commit 3baac7291effb501c4d52df7019ebf52011e5772 ]

1. Fixup infracfg clock controller binding
   It also acts as reset controller so #reset-cells is required.
2. Use -pins suffix for pinctrl

This fixes:
arch/arm64/boot/dts/mediatek/mt2712-evb.dtb: syscon@10001000: '#reset-cells' is a required property
        from schema $id: http://devicetree.org/schemas/arm/mediatek/mediatek,infracfg.yaml#
arch/arm64/boot/dts/mediatek/mt2712-evb.dtb: pinctrl@1000b000: 'eth_default', 'eth_sleep', 'usb0_iddig', 'usb1_iddig' do not match any of the regexes: 'pinctrl-[0-9]+', 'pins$'
        from schema $id: http://devicetree.org/schemas/pinctrl/mediatek,mt65xx-pinctrl.yaml#

Signed-off-by: Rafał Miłecki <rafal@milecki.pl>
Reviewed-by: AngeloGioacchino Del Regno <angelogioacchino.delregno@collabora.com>
Link: https://lore.kernel.org/r/20240301074741.8362-1-zajec5@gmail.com
[Angelo: Added Fixes tags]
Fixes: 5d4839709c8e ("arm64: dts: mt2712: Add clock controller device nodes")
Fixes: 1724f4cc5133 ("arm64: dts: Add USB3 related nodes for MT2712")
Signed-off-by: AngeloGioacchino Del Regno <angelogioacchino.delregno@collabora.com>
Signed-off-by: Sasha Levin <sashal@kernel.org>
2024-05-02 16:29:22 +02:00
Rafał Miłecki
1aea205a42 arm64: dts: mediatek: mt7622: drop "reset-names" from thermal block
[ Upstream commit ecb5b0034f5bcc35003b4b965cf50c6e98316e79 ]

Binding doesn't specify "reset-names" property and Linux driver also
doesn't use it.

Fix following validation error:
arch/arm64/boot/dts/mediatek/mt7622-rfb1.dtb: thermal@1100b000: Unevaluated properties are not allowed ('reset-names' was unexpected)
        from schema $id: http://devicetree.org/schemas/thermal/mediatek,thermal.yaml#

Fixes: ae457b7679c4 ("arm64: dts: mt7622: add SoC and peripheral related device nodes")
Signed-off-by: Rafał Miłecki <rafal@milecki.pl>
Reviewed-by: AngeloGioacchino Del Regno <angelogioacchino.delregno@collabora.com>
Link: https://lore.kernel.org/r/20240317221050.18595-5-zajec5@gmail.com
Signed-off-by: AngeloGioacchino Del Regno <angelogioacchino.delregno@collabora.com>
Signed-off-by: Sasha Levin <sashal@kernel.org>
2024-05-02 16:29:22 +02:00
Rafał Miłecki
d078de8674 arm64: dts: mediatek: mt7622: fix ethernet controller "compatible"
[ Upstream commit 208add29ce5b7291f6c466e4dfd9cbf61c72888e ]

Fix following validation error:
arch/arm64/boot/dts/mediatek/mt7622-rfb1.dtb: ethernet@1b100000: compatible: ['mediatek,mt7622-eth', 'mediatek,mt2701-eth', 'syscon'] is too long
        from schema $id: http://devicetree.org/schemas/net/mediatek,net.yaml#
(and other complains about wrong clocks).

Fixes: 5f599b3a0bb8 ("arm64: dts: mt7622: add ethernet device nodes")
Signed-off-by: Rafał Miłecki <rafal@milecki.pl>
Reviewed-by: AngeloGioacchino Del Regno <angelogioacchino.delregno@collabora.com>
Link: https://lore.kernel.org/r/20240317221050.18595-4-zajec5@gmail.com
Signed-off-by: AngeloGioacchino Del Regno <angelogioacchino.delregno@collabora.com>
Signed-off-by: Sasha Levin <sashal@kernel.org>
2024-05-02 16:29:22 +02:00
Rafał Miłecki
da3c0740f0 arm64: dts: mediatek: mt7622: fix IR nodename
[ Upstream commit 800dc93c3941e372c94278bf4059e6e82f60bd66 ]

Fix following validation error:
arch/arm64/boot/dts/mediatek/mt7622-rfb1.dtb: cir@10009000: $nodename:0: 'cir@10009000' does not match '^ir(-receiver)?(@[a-f0-9]+)?$'
        from schema $id: http://devicetree.org/schemas/media/mediatek,mt7622-cir.yaml#

Fixes: ae457b7679c4 ("arm64: dts: mt7622: add SoC and peripheral related device nodes")
Signed-off-by: Rafał Miłecki <rafal@milecki.pl>
Reviewed-by: AngeloGioacchino Del Regno <angelogioacchino.delregno@collabora.com>
Link: https://lore.kernel.org/r/20240317221050.18595-3-zajec5@gmail.com
Signed-off-by: AngeloGioacchino Del Regno <angelogioacchino.delregno@collabora.com>
Signed-off-by: Sasha Levin <sashal@kernel.org>
2024-05-02 16:29:22 +02:00
Rafał Miłecki
ce782b5a74 arm64: dts: mediatek: mt7622: fix clock controllers
[ Upstream commit 3ba5a61594347ab46e7c2cff6cd63ea0f1282efb ]

1. Drop unneeded "syscon"s (bindings were updated recently)
2. Use "clock-controller" in nodenames
3. Add missing "#clock-cells"

Fixes: d7167881e03e ("arm64: dts: mt7622: add clock controller device nodes")
Fixes: e9b65ecb7c30 ("arm64: dts: mediatek: mt7622: introduce nodes for Wireless Ethernet Dispatch")
Signed-off-by: Rafał Miłecki <rafal@milecki.pl>
Reviewed-by: AngeloGioacchino Del Regno <angelogioacchino.delregno@collabora.com>
Link: https://lore.kernel.org/r/20240317221050.18595-2-zajec5@gmail.com
Signed-off-by: AngeloGioacchino Del Regno <angelogioacchino.delregno@collabora.com>
Signed-off-by: Sasha Levin <sashal@kernel.org>
2024-05-02 16:29:22 +02:00
Pin-yen Lin
818f56a8b3 arm64: dts: mediatek: mt8195-cherry: Update min voltage constraint for MT6315
[ Upstream commit e9a6b8b5c61350535c7eb5ea9b2dde0d5745bd1b ]

Update the minimum voltage from 300000 uV to 400000 uV so it matches
the MT6315 datasheet.

Also update the minimum voltage for Vgpu regulator from 625000 uV to
400000 uV because the requested voltage could be lower than the minimum
voltage on the GPU OPP table when the MTK Smart Voltage Scaling (SVS)
driver is enabled.

Fixes: 260c04d425eb ("arm64: dts: mediatek: cherry: Enable MT6315 regulators on SPMI bus")
Signed-off-by: Pin-yen Lin <treapking@chromium.org>
Reviewed-by: AngeloGioacchino Del Regno <angelogioacchino.delregno@collabora.com>
Link: https://lore.kernel.org/r/20240315111621.2263159-3-treapking@chromium.org
Signed-off-by: AngeloGioacchino Del Regno <angelogioacchino.delregno@collabora.com>
Signed-off-by: Sasha Levin <sashal@kernel.org>
2024-05-02 16:29:22 +02:00
Pin-yen Lin
942debbea5 arm64: dts: mediatek: mt8192-asurada: Update min voltage constraint for MT6315
[ Upstream commit 374a7c6400e314458178255a63c37d6347845092 ]

Update the minimum voltage from 300000 uV to 400000 uV so it matches
the MT6315 datasheet.

Also update the minimum voltage for Vgpu regulator from 606250 uV to
400000 uV because the requested voltage could be lower than the minimum
voltage on the GPU OPP table when the MTK Smart Voltage Scaling (SVS)
driver is enabled.

Fixes: 3183cb62b033 ("arm64: dts: mediatek: asurada: Add SPMI regulators")
Signed-off-by: Pin-yen Lin <treapking@chromium.org>
Reviewed-by: AngeloGioacchino Del Regno <angelogioacchino.delregno@collabora.com>
Link: https://lore.kernel.org/r/20240315111621.2263159-2-treapking@chromium.org
Signed-off-by: AngeloGioacchino Del Regno <angelogioacchino.delregno@collabora.com>
Signed-off-by: Sasha Levin <sashal@kernel.org>
2024-05-02 16:29:22 +02:00
Nícolas F. R. A. Prado
e8ac4490db arm64: dts: mediatek: mt8195: Add missing gce-client-reg to mutex
[ Upstream commit 3b129949184a1251e6a42db714f6d68b75fabedd ]

Add the missing mediatek,gce-client-reg property to the mutex node to
allow it to use the GCE. This prevents the "can't parse gce-client-reg
property" error from being printed and should result in better
performance.

Fixes: b852ee68fd72 ("arm64: dts: mt8195: Add display node for vdosys0")
Suggested-by: AngeloGioacchino Del Regno <angelogioacchino.delregno@collabora.com>
Signed-off-by: Nícolas F. R. A. Prado <nfraprado@collabora.com>
Link: https://lore.kernel.org/r/20240229-gce-client-reg-add-missing-mt8192-95-v1-3-b12c233a8a33@collabora.com
Signed-off-by: AngeloGioacchino Del Regno <angelogioacchino.delregno@collabora.com>
Signed-off-by: Sasha Levin <sashal@kernel.org>
2024-05-02 16:29:22 +02:00
Nícolas F. R. A. Prado
5bcfc53373 arm64: dts: mediatek: mt8195: Add missing gce-client-reg to vpp/vdosys
[ Upstream commit 96b0c1528ef41fe754f5d1378b1db6c098a2e33f ]

Add the missing mediatek,gce-client-reg property to the vppsys and
vdosys nodes to allow them to use the GCE. This prevents the "can't
parse gce-client-reg property" error from being printed and should
result in better performance.

Fixes: 6aa5b46d1755 ("arm64: dts: mt8195: Add vdosys and vppsys clock nodes")
Suggested-by: AngeloGioacchino Del Regno <angelogioacchino.delregno@collabora.com>
Signed-off-by: Nícolas F. R. A. Prado <nfraprado@collabora.com>
Link: https://lore.kernel.org/r/20240229-gce-client-reg-add-missing-mt8192-95-v1-2-b12c233a8a33@collabora.com
Signed-off-by: AngeloGioacchino Del Regno <angelogioacchino.delregno@collabora.com>
Signed-off-by: Sasha Levin <sashal@kernel.org>
2024-05-02 16:29:22 +02:00