1065596 Commits

Author SHA1 Message Date
Paulo Alcantara
fd3951b798 smb: client: fix NULL deref in asn1_ber_decoder()
[ Upstream commit 90d025c2e953c11974e76637977c473200593a46 ]

If server replied SMB2_NEGOTIATE with a zero SecurityBufferOffset,
smb2_get_data_area() sets @len to non-zero but return NULL, so
decode_negTokeninit() ends up being called with a NULL @security_blob:

  BUG: kernel NULL pointer dereference, address: 0000000000000000
  #PF: supervisor read access in kernel mode
  #PF: error_code(0x0000) - not-present page
  PGD 0 P4D 0
  Oops: 0000 [#1] PREEMPT SMP NOPTI
  CPU: 2 PID: 871 Comm: mount.cifs Not tainted 6.7.0-rc4 #2
  Hardware name: QEMU Standard PC (Q35 + ICH9, 2009), BIOS rel-1.16.2-3-gd478f380-rebuilt.opensuse.org 04/01/2014
  RIP: 0010:asn1_ber_decoder+0x173/0xc80
  Code: 01 4c 39 2c 24 75 09 45 84 c9 0f 85 2f 03 00 00 48 8b 14 24 4c 29 ea 48 83 fa 01 0f 86 1e 07 00 00 48 8b 74 24 28 4d 8d 5d 01 <42> 0f b6 3c 2e 89 fa 40 88 7c 24 5c f7 d2 83 e2 1f 0f 84 3d 07 00
  RSP: 0018:ffffc9000063f950 EFLAGS: 00010202
  RAX: 0000000000000002 RBX: 0000000000000000 RCX: 000000000000004a
  RDX: 000000000000004a RSI: 0000000000000000 RDI: 0000000000000000
  RBP: 0000000000000000 R08: 0000000000000000 R09: 0000000000000000
  R10: 0000000000000002 R11: 0000000000000001 R12: 0000000000000000
  R13: 0000000000000000 R14: 000000000000004d R15: 0000000000000000
  FS:  00007fce52b0fbc0(0000) GS:ffff88806ba00000(0000) knlGS:0000000000000000
  CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
  CR2: 0000000000000000 CR3: 000000001ae64000 CR4: 0000000000750ef0
  PKRU: 55555554
  Call Trace:
   <TASK>
   ? __die+0x23/0x70
   ? page_fault_oops+0x181/0x480
   ? __stack_depot_save+0x1e6/0x480
   ? exc_page_fault+0x6f/0x1c0
   ? asm_exc_page_fault+0x26/0x30
   ? asn1_ber_decoder+0x173/0xc80
   ? check_object+0x40/0x340
   decode_negTokenInit+0x1e/0x30 [cifs]
   SMB2_negotiate+0xc99/0x17c0 [cifs]
   ? smb2_negotiate+0x46/0x60 [cifs]
   ? srso_alias_return_thunk+0x5/0xfbef5
   smb2_negotiate+0x46/0x60 [cifs]
   cifs_negotiate_protocol+0xae/0x130 [cifs]
   cifs_get_smb_ses+0x517/0x1040 [cifs]
   ? srso_alias_return_thunk+0x5/0xfbef5
   ? srso_alias_return_thunk+0x5/0xfbef5
   ? queue_delayed_work_on+0x5d/0x90
   cifs_mount_get_session+0x78/0x200 [cifs]
   dfs_mount_share+0x13a/0x9f0 [cifs]
   ? srso_alias_return_thunk+0x5/0xfbef5
   ? lock_acquire+0xbf/0x2b0
   ? find_nls+0x16/0x80
   ? srso_alias_return_thunk+0x5/0xfbef5
   cifs_mount+0x7e/0x350 [cifs]
   cifs_smb3_do_mount+0x128/0x780 [cifs]
   smb3_get_tree+0xd9/0x290 [cifs]
   vfs_get_tree+0x2c/0x100
   ? capable+0x37/0x70
   path_mount+0x2d7/0xb80
   ? srso_alias_return_thunk+0x5/0xfbef5
   ? _raw_spin_unlock_irqrestore+0x44/0x60
   __x64_sys_mount+0x11a/0x150
   do_syscall_64+0x47/0xf0
   entry_SYSCALL_64_after_hwframe+0x6f/0x77
  RIP: 0033:0x7fce52c2ab1e

Fix this by setting @len to zero when @off == 0 so callers won't
attempt to dereference non-existing data areas.

Reported-by: Robert Morris <rtm@csail.mit.edu>
Cc: stable@vger.kernel.org
Signed-off-by: Paulo Alcantara (SUSE) <pc@manguebit.com>
Signed-off-by: Steve French <stfrench@microsoft.com>
Signed-off-by: Sasha Levin <sashal@kernel.org>
2024-01-05 15:13:31 +01:00
Ville Syrjälä
6ded9038e4 drm/i915: Fix intel_atomic_setup_scalers() plane_state handling
[ Upstream commit c3070f080f9ba18dea92eaa21730f7ab85b5c8f4 ]

Since the plane_state variable is declared outside the scaler_users
loop in intel_atomic_setup_scalers(), and it's never reset back to
NULL inside the loop we may end up calling intel_atomic_setup_scaler()
with a non-NULL plane state for the pipe scaling case. That is bad
because intel_atomic_setup_scaler() determines whether we are doing
plane scaling or pipe scaling based on plane_state!=NULL. The end
result is that we may miscalculate the scaler mode for pipe scaling.

The hardware becomes somewhat upset if we end up in this situation
when scanning out a planar format on a SDR plane. We end up
programming the pipe scaler into planar mode as well, and the
result is a screenfull of garbage.

Fix the situation by making sure we pass the correct plane_state==NULL
when calculating the scaler mode for pipe scaling.

Cc: stable@vger.kernel.org
Signed-off-by: Ville Syrjälä <ville.syrjala@linux.intel.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20231207193441.20206-2-ville.syrjala@linux.intel.com
Reviewed-by: Jani Nikula <jani.nikula@intel.com>
(cherry picked from commit e81144106e21271c619f0c722a09e27ccb8c043d)
Signed-off-by: Jani Nikula <jani.nikula@intel.com>
Signed-off-by: Sasha Levin <sashal@kernel.org>
2024-01-05 15:13:31 +01:00
Ville Syrjälä
f9954b18c4 drm/i915: Relocate intel_atomic_setup_scalers()
[ Upstream commit 8976b18249407df8bf6ea18ecae0640a15341a50 ]

Move intel_atomic_setup_scalers() next to the other scaler
code in skl_scaler.c.

Signed-off-by: Ville Syrjälä <ville.syrjala@linux.intel.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20230418175528.13117-4-ville.syrjala@linux.intel.com
Reviewed-by: Jani Nikula <jani.nikula@intel.com>
Stable-dep-of: c3070f080f9b ("drm/i915: Fix intel_atomic_setup_scalers() plane_state handling")
Signed-off-by: Sasha Levin <sashal@kernel.org>
2024-01-05 15:13:31 +01:00
Luca Coelho
2a4ef0d6e5 drm/i915/mtl: limit second scaler vertical scaling in ver >= 14
[ Upstream commit 8d4312e2b228ba7a5ac79154458098274ec61e9b ]

In newer hardware versions (i.e. display version >= 14), the second
scaler doesn't support vertical scaling.

The current implementation of the scaling limits is simplified and
only occurs when the planes are created, so we don't know which scaler
is being used.

In order to handle separate scaling limits for horizontal and vertical
scaling, and different limits per scaler, split the checks in two
phases.  We first do a simple check during plane creation and use the
best-case scenario (because we don't know the scaler that may be used
at a later point) and then do a more specific check when the scalers
are actually being set up.

Signed-off-by: Luca Coelho <luciano.coelho@intel.com>
Reviewed-by: Stanislav Lisovskiy <stanislav.lisovskiy@intel.com>
Signed-off-by: Radhakrishna Sripada <radhakrishna.sripada@intel.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20221223130509.43245-2-luciano.coelho@intel.com
Stable-dep-of: c3070f080f9b ("drm/i915: Fix intel_atomic_setup_scalers() plane_state handling")
Signed-off-by: Sasha Levin <sashal@kernel.org>
2024-01-05 15:13:31 +01:00
Namjae Jeon
6bbeb3960a ksmbd: fix wrong name of SMB2_CREATE_ALLOCATION_SIZE
[ Upstream commit 13736654481198e519059d4a2e2e3b20fa9fdb3e ]

MS confirm that "AISi" name of SMB2_CREATE_ALLOCATION_SIZE in MS-SMB2
specification is a typo. cifs/ksmbd have been using this wrong name from
MS-SMB2. It should be "AlSi". Also It will cause problem when running
smb2.create.open test in smbtorture against ksmbd.

Cc: stable@vger.kernel.org
Fixes: 12197a7fdda9 ("Clarify SMB2/SMB3 create context and add missing ones")
Signed-off-by: Namjae Jeon <linkinjeon@kernel.org>
Reviewed-by: Paulo Alcantara (SUSE) <pc@manguebit.com>
Signed-off-by: Steve French <stfrench@microsoft.com>
Signed-off-by: Sasha Levin <sashal@kernel.org>
2024-01-05 15:13:31 +01:00
Kent Gibson
c0c4e9767e gpiolib: cdev: add gpio_device locking wrapper around gpio_ioctl()
[ Upstream commit 1d656bd259edb89dc1d9938ec5c5389867088546 ]

While the GPIO cdev gpio_ioctl() call is in progress, the kernel can
call gpiochip_remove() which will set gdev->chip to NULL, after which
any subsequent access will cause a crash.

gpio_ioctl() was overlooked by the previous fix to protect syscalls
(bdbbae241a04), so add protection for that.

Fixes: bdbbae241a04 ("gpiolib: protect the GPIO device against being dropped while in use by user-space")
Fixes: d7c51b47ac11 ("gpio: userspace ABI for reading/writing GPIO lines")
Fixes: 3c0d9c635ae2 ("gpiolib: cdev: support GPIO_V2_GET_LINE_IOCTL and GPIO_V2_LINE_GET_VALUES_IOCTL")
Fixes: aad955842d1c ("gpiolib: cdev: support GPIO_V2_GET_LINEINFO_IOCTL and GPIO_V2_GET_LINEINFO_WATCH_IOCTL")
Signed-off-by: Kent Gibson <warthog618@gmail.com>
Signed-off-by: Bartosz Golaszewski <bartosz.golaszewski@linaro.org>
Signed-off-by: Sasha Levin <sashal@kernel.org>
2024-01-05 15:13:31 +01:00
Alexis Lothoré
8bdcedfdb0 pinctrl: at91-pio4: use dedicated lock class for IRQ
[ Upstream commit 14694179e561b5f2f7e56a0f590e2cb49a9cc7ab ]

Trying to suspend to RAM on SAMA5D27 EVK leads to the following lockdep
warning:

 ============================================
 WARNING: possible recursive locking detected
 6.7.0-rc5-wt+ #532 Not tainted
 --------------------------------------------
 sh/92 is trying to acquire lock:
 c3cf306c (&irq_desc_lock_class){-.-.}-{2:2}, at: __irq_get_desc_lock+0xe8/0x100

 but task is already holding lock:
 c3d7c46c (&irq_desc_lock_class){-.-.}-{2:2}, at: __irq_get_desc_lock+0xe8/0x100

 other info that might help us debug this:
  Possible unsafe locking scenario:

        CPU0
        ----
   lock(&irq_desc_lock_class);
   lock(&irq_desc_lock_class);

  *** DEADLOCK ***

  May be due to missing lock nesting notation

 6 locks held by sh/92:
  #0: c3aa0258 (sb_writers#6){.+.+}-{0:0}, at: ksys_write+0xd8/0x178
  #1: c4c2df44 (&of->mutex){+.+.}-{3:3}, at: kernfs_fop_write_iter+0x138/0x284
  #2: c32684a0 (kn->active){.+.+}-{0:0}, at: kernfs_fop_write_iter+0x148/0x284
  #3: c232b6d4 (system_transition_mutex){+.+.}-{3:3}, at: pm_suspend+0x13c/0x4e8
  #4: c387b088 (&dev->mutex){....}-{3:3}, at: __device_suspend+0x1e8/0x91c
  #5: c3d7c46c (&irq_desc_lock_class){-.-.}-{2:2}, at: __irq_get_desc_lock+0xe8/0x100

 stack backtrace:
 CPU: 0 PID: 92 Comm: sh Not tainted 6.7.0-rc5-wt+ #532
 Hardware name: Atmel SAMA5
  unwind_backtrace from show_stack+0x18/0x1c
  show_stack from dump_stack_lvl+0x34/0x48
  dump_stack_lvl from __lock_acquire+0x19ec/0x3a0c
  __lock_acquire from lock_acquire.part.0+0x124/0x2d0
  lock_acquire.part.0 from _raw_spin_lock_irqsave+0x5c/0x78
  _raw_spin_lock_irqsave from __irq_get_desc_lock+0xe8/0x100
  __irq_get_desc_lock from irq_set_irq_wake+0xa8/0x204
  irq_set_irq_wake from atmel_gpio_irq_set_wake+0x58/0xb4
  atmel_gpio_irq_set_wake from irq_set_irq_wake+0x100/0x204
  irq_set_irq_wake from gpio_keys_suspend+0xec/0x2b8
  gpio_keys_suspend from dpm_run_callback+0xe4/0x248
  dpm_run_callback from __device_suspend+0x234/0x91c
  __device_suspend from dpm_suspend+0x224/0x43c
  dpm_suspend from dpm_suspend_start+0x9c/0xa8
  dpm_suspend_start from suspend_devices_and_enter+0x1e0/0xa84
  suspend_devices_and_enter from pm_suspend+0x460/0x4e8
  pm_suspend from state_store+0x78/0xe4
  state_store from kernfs_fop_write_iter+0x1a0/0x284
  kernfs_fop_write_iter from vfs_write+0x38c/0x6f4
  vfs_write from ksys_write+0xd8/0x178
  ksys_write from ret_fast_syscall+0x0/0x1c
 Exception stack(0xc52b3fa8 to 0xc52b3ff0)
 3fa0:                   00000004 005a0ae8 00000001 005a0ae8 00000004 00000001
 3fc0: 00000004 005a0ae8 00000001 00000004 00000004 b6c616c0 00000020 0059d190
 3fe0: 00000004 b6c61678 aec5a041 aebf1a26

This warning is raised because pinctrl-at91-pio4 uses chained IRQ. Whenever
a wake up source configures an IRQ through irq_set_irq_wake, it will
lock the corresponding IRQ desc, and then call irq_set_irq_wake on "parent"
IRQ which will do the same on its own IRQ desc, but since those two locks
share the same class, lockdep reports this as an issue.

Fix lockdep false positive by setting a different class for parent and
children IRQ

Fixes: 776180848b57 ("pinctrl: introduce driver for Atmel PIO4 controller")
Signed-off-by: Alexis Lothoré <alexis.lothore@bootlin.com>
Link: https://lore.kernel.org/r/20231215-lockdep_warning-v1-1-8137b2510ed5@bootlin.com
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
Signed-off-by: Sasha Levin <sashal@kernel.org>
2024-01-05 15:13:31 +01:00
Quan Nguyen
f0c52b790a i2c: aspeed: Handle the coalesced stop conditions with the start conditions.
[ Upstream commit b4cc1cbba5195a4dd497cf2f8f09e7807977d543 ]

Some masters may drive the transfers with low enough latency between
the nak/stop phase of the current command and the start/address phase
of the following command that the interrupts are coalesced by the
time we process them.
Handle the stop conditions before processing SLAVE_MATCH to fix the
complaints that sometimes occur below.

"aspeed-i2c-bus 1e78a040.i2c-bus: irq handled != irq. Expected
0x00000086, but was 0x00000084"

Fixes: f9eb91350bb2 ("i2c: aspeed: added slave support for Aspeed I2C driver")
Signed-off-by: Quan Nguyen <quan@os.amperecomputing.com>
Reviewed-by: Andrew Jeffery <andrew@codeconstruct.com.au>
Reviewed-by: Andi Shyti <andi.shyti@kernel.org>
Signed-off-by: Wolfram Sang <wsa@kernel.org>
Signed-off-by: Sasha Levin <sashal@kernel.org>
2024-01-05 15:13:31 +01:00
Jerome Brunet
c87ab6e306 ASoC: hdmi-codec: fix missing report for jack initial status
[ Upstream commit 025222a9d6d25eee2ad9a1bb5a8b29b34b5ba576 ]

This fixes a problem introduced while fixing ELD reporting with no jack
set.

Most driver using the hdmi-codec will call the 'plugged_cb' callback
directly when registered to report the initial state of the HDMI connector.

With the commit mentionned, this occurs before jack is ready and the
initial report is lost for platforms actually providing a jack for HDMI.

Fix this by storing the hdmi connector status regardless of jack being set
or not and report the last status when jack gets set.

With this, the initial state is reported correctly even if it is
disconnected. This was not done initially and is also a fix.

Fixes: 15be353d55f9 ("ASoC: hdmi-codec: register hpd callback on component probe")
Reported-by: Zhengqiao Xia <xiazhengqiao@huaqin.corp-partner.google.com>
Closes: https://lore.kernel.org/alsa-devel/CADYyEwTNyY+fR9SgfDa-g6iiDwkU3MUdPVCYexs2_3wbcM8_vg@mail.gmail.com/
Cc: Hsin-Yi Wang <hsinyi@google.com>
Tested-by: Zhengqiao Xia <xiazhengqiao@huaqin.corp-partner.google.com>
Signed-off-by: Jerome Brunet <jbrunet@baylibre.com>
Link: https://msgid.link/r/20231218145655.134929-1-jbrunet@baylibre.com
Signed-off-by: Mark Brown <broonie@kernel.org>
Signed-off-by: Sasha Levin <sashal@kernel.org>
2024-01-05 15:13:30 +01:00
David Howells
98fb5eaade afs: Fix use-after-free due to get/remove race in volume tree
[ Upstream commit 9a6b294ab496650e9f270123730df37030911b55 ]

When an afs_volume struct is put, its refcount is reduced to 0 before
the cell->volume_lock is taken and the volume removed from the
cell->volumes tree.

Unfortunately, this means that the lookup code can race and see a volume
with a zero ref in the tree, resulting in a use-after-free:

    refcount_t: addition on 0; use-after-free.
    WARNING: CPU: 3 PID: 130782 at lib/refcount.c:25 refcount_warn_saturate+0x7a/0xda
    ...
    RIP: 0010:refcount_warn_saturate+0x7a/0xda
    ...
    Call Trace:
     afs_get_volume+0x3d/0x55
     afs_create_volume+0x126/0x1de
     afs_validate_fc+0xfe/0x130
     afs_get_tree+0x20/0x2e5
     vfs_get_tree+0x1d/0xc9
     do_new_mount+0x13b/0x22e
     do_mount+0x5d/0x8a
     __do_sys_mount+0x100/0x12a
     do_syscall_64+0x3a/0x94
     entry_SYSCALL_64_after_hwframe+0x62/0x6a

Fix this by:

 (1) When putting, use a flag to indicate if the volume has been removed
     from the tree and skip the rb_erase if it has.

 (2) When looking up, use a conditional ref increment and if it fails
     because the refcount is 0, replace the node in the tree and set the
     removal flag.

Fixes: 20325960f875 ("afs: Reorganise volume and server trees to be rooted on the cell")
Signed-off-by: David Howells <dhowells@redhat.com>
Reviewed-by: Jeffrey Altman <jaltman@auristor.com>
cc: Marc Dionne <marc.dionne@auristor.com>
cc: linux-afs@lists.infradead.org
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Signed-off-by: Sasha Levin <sashal@kernel.org>
2024-01-05 15:13:30 +01:00
David Howells
57bf562950 afs: Use refcount_t rather than atomic_t
[ Upstream commit c56f9ec8b20f931014574b943590c4d830109380 ]

Use refcount_t rather than atomic_t in afs to make use of the count
checking facilities provided.

Signed-off-by: David Howells <dhowells@redhat.com>
Reviewed-by: Marc Dionne <marc.dionne@auristor.com>
cc: linux-afs@lists.infradead.org
Link: https://lore.kernel.org/r/165911277768.3745403.423349776836296452.stgit@warthog.procyon.org.uk/ # v1
Stable-dep-of: 9a6b294ab496 ("afs: Fix use-after-free due to get/remove race in volume tree")
Signed-off-by: Sasha Levin <sashal@kernel.org>
2024-01-05 15:13:30 +01:00
David Howells
d1fe946cb5 afs: Fix overwriting of result of DNS query
[ Upstream commit a9e01ac8c5ff32669119c40dfdc9e80eb0b7d7aa ]

In afs_update_cell(), ret is the result of the DNS lookup and the errors
are to be handled by a switch - however, the value gets clobbered in
between by setting it to -ENOMEM in case afs_alloc_vlserver_list()
fails.

Fix this by moving the setting of -ENOMEM into the error handling for
OOM failure.  Further, only do it if we don't have an alternative error
to return.

Found by Linux Verification Center (linuxtesting.org) with SVACE.  Based
on a patch from Anastasia Belova [1].

Fixes: d5c32c89b208 ("afs: Fix cell DNS lookup")
Signed-off-by: David Howells <dhowells@redhat.com>
Reviewed-by: Jeffrey Altman <jaltman@auristor.com>
cc: Anastasia Belova <abelova@astralinux.ru>
cc: Marc Dionne <marc.dionne@auristor.com>
cc: linux-afs@lists.infradead.org
cc: lvc-project@linuxtesting.org
Link: https://lore.kernel.org/r/20231221085849.1463-1-abelova@astralinux.ru/ [1]
Link: https://lore.kernel.org/r/1700862.1703168632@warthog.procyon.org.uk/ # v1
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Signed-off-by: Sasha Levin <sashal@kernel.org>
2024-01-05 15:13:30 +01:00
David Howells
2552b32b0b keys, dns: Allow key types (eg. DNS) to be reclaimed immediately on expiry
[ Upstream commit 39299bdd2546688d92ed9db4948f6219ca1b9542 ]

If a key has an expiration time, then when that time passes, the key is
left around for a certain amount of time before being collected (5 mins by
default) so that EKEYEXPIRED can be returned instead of ENOKEY.  This is a
problem for DNS keys because we want to redo the DNS lookup immediately at
that point.

Fix this by allowing key types to be marked such that keys of that type
don't have this extra period, but are reclaimed as soon as they expire and
turn this on for dns_resolver-type keys.  To make this easier to handle,
key->expiry is changed to be permanent if TIME64_MAX rather than 0.

Furthermore, give such new-style negative DNS results a 1s default expiry
if no other expiry time is set rather than allowing it to stick around
indefinitely.  This shouldn't be zero as ls will follow a failing stat call
immediately with a second with AT_SYMLINK_NOFOLLOW added.

Fixes: 1a4240f4764a ("DNS: Separate out CIFS DNS Resolver code")
Signed-off-by: David Howells <dhowells@redhat.com>
Tested-by: Markus Suvanto <markus.suvanto@gmail.com>
cc: Wang Lei <wang840925@gmail.com>
cc: Jeff Layton <jlayton@redhat.com>
cc: Steve French <smfrench@gmail.com>
cc: Marc Dionne <marc.dionne@auristor.com>
cc: Jarkko Sakkinen <jarkko@kernel.org>
cc: "David S. Miller" <davem@davemloft.net>
cc: Eric Dumazet <edumazet@google.com>
cc: Jakub Kicinski <kuba@kernel.org>
cc: Paolo Abeni <pabeni@redhat.com>
cc: linux-afs@lists.infradead.org
cc: linux-cifs@vger.kernel.org
cc: linux-nfs@vger.kernel.org
cc: ceph-devel@vger.kernel.org
cc: keyrings@vger.kernel.org
cc: netdev@vger.kernel.org
Signed-off-by: Sasha Levin <sashal@kernel.org>
2024-01-05 15:13:30 +01:00
Eric Dumazet
a1ab650f14 net: check dev->gso_max_size in gso_features_check()
[ Upstream commit 24ab059d2ebd62fdccc43794796f6ffbabe49ebc ]

Some drivers might misbehave if TSO packets get too big.

GVE for instance uses a 16bit field in its TX descriptor,
and will do bad things if a packet is bigger than 2^16 bytes.

Linux TCP stack honors dev->gso_max_size, but there are
other ways for too big packets to reach an ndo_start_xmit()
handler : virtio_net, af_packet, GRO...

Add a generic check in gso_features_check() and fallback
to GSO when needed.

gso_max_size was added in the blamed commit.

Fixes: 82cc1a7a5687 ("[NET]: Add per-connection option to set max TSO frame size")
Signed-off-by: Eric Dumazet <edumazet@google.com>
Link: https://lore.kernel.org/r/20231219125331.4127498-1-edumazet@google.com
Signed-off-by: Paolo Abeni <pabeni@redhat.com>
Signed-off-by: Sasha Levin <sashal@kernel.org>
2024-01-05 15:13:30 +01:00
David Howells
56eaa3ec31 afs: Fix dynamic root lookup DNS check
[ Upstream commit 74cef6872ceaefb5b6c5c60641371ea28702d358 ]

In the afs dynamic root directory, the ->lookup() function does a DNS check
on the cell being asked for and if the DNS upcall reports an error it will
report an error back to userspace (typically ENOENT).

However, if a failed DNS upcall returns a new-style result, it will return
a valid result, with the status field set appropriately to indicate the
type of failure - and in that case, dns_query() doesn't return an error and
we let stat() complete with no error - which can cause confusion in
userspace as subsequent calls that trigger d_automount then fail with
ENOENT.

Fix this by checking the status result from a valid dns_query() and
returning an error if it indicates a failure.

Fixes: bbb4c4323a4d ("dns: Allow the dns resolver to retrieve a server set")
Reported-by: Markus Suvanto <markus.suvanto@gmail.com>
Closes: https://bugzilla.kernel.org/show_bug.cgi?id=216637
Signed-off-by: David Howells <dhowells@redhat.com>
Tested-by: Markus Suvanto <markus.suvanto@gmail.com>
cc: Marc Dionne <marc.dionne@auristor.com>
cc: linux-afs@lists.infradead.org
Signed-off-by: Sasha Levin <sashal@kernel.org>
2024-01-05 15:13:30 +01:00
David Howells
3f85785bc4 afs: Fix the dynamic root's d_delete to always delete unused dentries
[ Upstream commit 71f8b55bc30e82d6355e07811213d847981a32e2 ]

Fix the afs dynamic root's d_delete function to always delete unused
dentries rather than only deleting them if they're positive.  With things
as they stand upstream, negative dentries stemming from failed DNS lookups
stick around preventing retries.

Fixes: 66c7e1d319a5 ("afs: Split the dynroot stuff out and give it its own ops tables")
Signed-off-by: David Howells <dhowells@redhat.com>
Tested-by: Markus Suvanto <markus.suvanto@gmail.com>
cc: Marc Dionne <marc.dionne@auristor.com>
cc: linux-afs@lists.infradead.org
Signed-off-by: Sasha Levin <sashal@kernel.org>
2024-01-05 15:13:30 +01:00
Liu Jian
3739e0a52d net: check vlan filter feature in vlan_vids_add_by_dev() and vlan_vids_del_by_dev()
[ Upstream commit 01a564bab4876007ce35f312e16797dfe40e4823 ]

I got the below warning trace:

WARNING: CPU: 4 PID: 4056 at net/core/dev.c:11066 unregister_netdevice_many_notify
CPU: 4 PID: 4056 Comm: ip Not tainted 6.7.0-rc4+ #15
Hardware name: QEMU Standard PC (Q35 + ICH9, 2009), BIOS 1.15.0-1 04/01/2014
RIP: 0010:unregister_netdevice_many_notify+0x9a4/0x9b0
Call Trace:
 rtnl_dellink
 rtnetlink_rcv_msg
 netlink_rcv_skb
 netlink_unicast
 netlink_sendmsg
 __sock_sendmsg
 ____sys_sendmsg
 ___sys_sendmsg
 __sys_sendmsg
 do_syscall_64
 entry_SYSCALL_64_after_hwframe

It can be repoduced via:

    ip netns add ns1
    ip netns exec ns1 ip link add bond0 type bond mode 0
    ip netns exec ns1 ip link add bond_slave_1 type veth peer veth2
    ip netns exec ns1 ip link set bond_slave_1 master bond0
[1] ip netns exec ns1 ethtool -K bond0 rx-vlan-filter off
[2] ip netns exec ns1 ip link add link bond_slave_1 name bond_slave_1.0 type vlan id 0
[3] ip netns exec ns1 ip link add link bond0 name bond0.0 type vlan id 0
[4] ip netns exec ns1 ip link set bond_slave_1 nomaster
[5] ip netns exec ns1 ip link del veth2
    ip netns del ns1

This is all caused by command [1] turning off the rx-vlan-filter function
of bond0. The reason is the same as commit 01f4fd270870 ("bonding: Fix
incorrect deletion of ETH_P_8021AD protocol vid from slaves"). Commands
[2] [3] add the same vid to slave and master respectively, causing
command [4] to empty slave->vlan_info. The following command [5] triggers
this problem.

To fix this problem, we should add VLAN_FILTER feature checks in
vlan_vids_add_by_dev() and vlan_vids_del_by_dev() to prevent incorrect
addition or deletion of vlan_vid information.

Fixes: 348a1443cc43 ("vlan: introduce functions to do mass addition/deletion of vids by another device")
Signed-off-by: Liu Jian <liujian56@huawei.com>
Signed-off-by: Paolo Abeni <pabeni@redhat.com>
Signed-off-by: Sasha Levin <sashal@kernel.org>
2024-01-05 15:13:29 +01:00
Yury Norov
c124a75b24 net: mana: select PAGE_POOL
[ Upstream commit 340943fbff3d8faa44d2223ca04917df28786a07 ]

Mana uses PAGE_POOL API. x86_64 defconfig doesn't select it:

ld: vmlinux.o: in function `mana_create_page_pool.isra.0':
mana_en.c:(.text+0x9ae36f): undefined reference to `page_pool_create'
ld: vmlinux.o: in function `mana_get_rxfrag':
mana_en.c:(.text+0x9afed1): undefined reference to `page_pool_alloc_pages'
make[3]: *** [/home/yury/work/linux/scripts/Makefile.vmlinux:37: vmlinux] Error 1
make[2]: *** [/home/yury/work/linux/Makefile:1154: vmlinux] Error 2
make[1]: *** [/home/yury/work/linux/Makefile:234: __sub-make] Error 2
make[1]: Leaving directory '/home/yury/work/build-linux-x86_64'
make: *** [Makefile:234: __sub-make] Error 2

So we need to select it explicitly.

Signed-off-by: Yury Norov <yury.norov@gmail.com>
Reviewed-by: Simon Horman <horms@kernel.org>
Tested-by: Simon Horman <horms@kernel.org> # build-tested
Fixes: ca9c54d2 ("net: mana: Add a driver for Microsoft Azure Network Adapter")
Link: https://lore.kernel.org/r/20231215203353.635379-1-yury.norov@gmail.com
Signed-off-by: Paolo Abeni <pabeni@redhat.com>
Signed-off-by: Sasha Levin <sashal@kernel.org>
2024-01-05 15:13:29 +01:00
Eric Dumazet
c0e527c532 net/rose: fix races in rose_kill_by_device()
[ Upstream commit 64b8bc7d5f1434c636a40bdcfcd42b278d1714be ]

syzbot found an interesting netdev refcounting issue in
net/rose/af_rose.c, thanks to CONFIG_NET_DEV_REFCNT_TRACKER=y [1]

Problem is that rose_kill_by_device() can change rose->device
while other threads do not expect the pointer to be changed.

We have to first collect sockets in a temporary array,
then perform the changes while holding the socket
lock and rose_list_lock spinlock (in this order)

Change rose_release() to also acquire rose_list_lock
before releasing the netdev refcount.

[1]

[ 1185.055088][ T7889] ref_tracker: reference already released.
[ 1185.061476][ T7889] ref_tracker: allocated in:
[ 1185.066081][ T7889]  rose_bind+0x4ab/0xd10
[ 1185.070446][ T7889]  __sys_bind+0x1ec/0x220
[ 1185.074818][ T7889]  __x64_sys_bind+0x72/0xb0
[ 1185.079356][ T7889]  do_syscall_64+0x40/0x110
[ 1185.083897][ T7889]  entry_SYSCALL_64_after_hwframe+0x63/0x6b
[ 1185.089835][ T7889] ref_tracker: freed in:
[ 1185.094088][ T7889]  rose_release+0x2f5/0x570
[ 1185.098629][ T7889]  __sock_release+0xae/0x260
[ 1185.103262][ T7889]  sock_close+0x1c/0x20
[ 1185.107453][ T7889]  __fput+0x270/0xbb0
[ 1185.111467][ T7889]  task_work_run+0x14d/0x240
[ 1185.116085][ T7889]  get_signal+0x106f/0x2790
[ 1185.120622][ T7889]  arch_do_signal_or_restart+0x90/0x7f0
[ 1185.126205][ T7889]  exit_to_user_mode_prepare+0x121/0x240
[ 1185.131846][ T7889]  syscall_exit_to_user_mode+0x1e/0x60
[ 1185.137293][ T7889]  do_syscall_64+0x4d/0x110
[ 1185.141783][ T7889]  entry_SYSCALL_64_after_hwframe+0x63/0x6b
[ 1185.148085][ T7889] ------------[ cut here ]------------

WARNING: CPU: 1 PID: 7889 at lib/ref_tracker.c:255 ref_tracker_free+0x61a/0x810 lib/ref_tracker.c:255
Modules linked in:
CPU: 1 PID: 7889 Comm: syz-executor.2 Not tainted 6.7.0-rc4-syzkaller-00162-g65c95f78917e #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 11/10/2023
RIP: 0010:ref_tracker_free+0x61a/0x810 lib/ref_tracker.c:255
Code: 00 44 8b 6b 18 31 ff 44 89 ee e8 21 62 f5 fc 45 85 ed 0f 85 a6 00 00 00 e8 a3 66 f5 fc 48 8b 34 24 48 89 ef e8 27 5f f1 05 90 <0f> 0b 90 bb ea ff ff ff e9 52 fd ff ff e8 84 66 f5 fc 4c 8d 6d 44
RSP: 0018:ffffc90004917850 EFLAGS: 00010202
RAX: 0000000000000201 RBX: ffff88802618f4c0 RCX: 0000000000000000
RDX: 0000000000000202 RSI: ffffffff8accb920 RDI: 0000000000000001
RBP: ffff8880269ea5b8 R08: 0000000000000001 R09: fffffbfff23e35f6
R10: ffffffff91f1afb7 R11: 0000000000000001 R12: 1ffff92000922f0c
R13: 0000000005a2039b R14: ffff88802618f4d8 R15: 00000000ffffffff
FS: 00007f0a720ef6c0(0000) GS:ffff8880b9900000(0000) knlGS:0000000000000000
CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00007f43a819d988 CR3: 0000000076c64000 CR4: 00000000003506f0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
Call Trace:
<TASK>
netdev_tracker_free include/linux/netdevice.h:4127 [inline]
netdev_put include/linux/netdevice.h:4144 [inline]
netdev_put include/linux/netdevice.h:4140 [inline]
rose_kill_by_device net/rose/af_rose.c:195 [inline]
rose_device_event+0x25d/0x330 net/rose/af_rose.c:218
notifier_call_chain+0xb6/0x3b0 kernel/notifier.c:93
call_netdevice_notifiers_info+0xbe/0x130 net/core/dev.c:1967
call_netdevice_notifiers_extack net/core/dev.c:2005 [inline]
call_netdevice_notifiers net/core/dev.c:2019 [inline]
__dev_notify_flags+0x1f5/0x2e0 net/core/dev.c:8646
dev_change_flags+0x122/0x170 net/core/dev.c:8682
dev_ifsioc+0x9ad/0x1090 net/core/dev_ioctl.c:529
dev_ioctl+0x224/0x1090 net/core/dev_ioctl.c:786
sock_do_ioctl+0x198/0x270 net/socket.c:1234
sock_ioctl+0x22e/0x6b0 net/socket.c:1339
vfs_ioctl fs/ioctl.c:51 [inline]
__do_sys_ioctl fs/ioctl.c:871 [inline]
__se_sys_ioctl fs/ioctl.c:857 [inline]
__x64_sys_ioctl+0x18f/0x210 fs/ioctl.c:857
do_syscall_x64 arch/x86/entry/common.c:52 [inline]
do_syscall_64+0x40/0x110 arch/x86/entry/common.c:83
entry_SYSCALL_64_after_hwframe+0x63/0x6b
RIP: 0033:0x7f0a7147cba9
Code: 28 00 00 00 75 05 48 83 c4 28 c3 e8 e1 20 00 00 90 48 89 f8 48 89 f7 48 89 d6 48 89 ca 4d 89 c2 4d 89 c8 4c 8b 4c 24 08 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 c7 c1 b0 ff ff ff f7 d8 64 89 01 48
RSP: 002b:00007f0a720ef0c8 EFLAGS: 00000246 ORIG_RAX: 0000000000000010
RAX: ffffffffffffffda RBX: 00007f0a7159bf80 RCX: 00007f0a7147cba9
RDX: 0000000020000040 RSI: 0000000000008914 RDI: 0000000000000004
RBP: 00007f0a714c847a R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000
R13: 000000000000000b R14: 00007f0a7159bf80 R15: 00007ffc8bb3a5f8
</TASK>

Fixes: 1da177e4c3f4 ("Linux-2.6.12-rc2")
Reported-by: syzbot <syzkaller@googlegroups.com>
Signed-off-by: Eric Dumazet <edumazet@google.com>
Cc: Bernard Pidoux <f6bvp@free.fr>
Signed-off-by: David S. Miller <davem@davemloft.net>
Signed-off-by: Sasha Levin <sashal@kernel.org>
2024-01-05 15:13:29 +01:00
Zhipeng Lu
66d2116880 ethernet: atheros: fix a memleak in atl1e_setup_ring_resources
[ Upstream commit 309fdb1c33fe726d92d0030481346f24e1b01f07 ]

In the error handling of 'offset > adapter->ring_size', the
tx_ring->tx_buffer allocated by kzalloc should be freed,
instead of 'goto failed' instantly.

Fixes: a6a5325239c2 ("atl1e: Atheros L1E Gigabit Ethernet driver")
Signed-off-by: Zhipeng Lu <alexious@zju.edu.cn>
Reviewed-by: Suman Ghosh <sumang@marvell.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Signed-off-by: Sasha Levin <sashal@kernel.org>
2024-01-05 15:13:29 +01:00
Eric Dumazet
87255af408 net: sched: ife: fix potential use-after-free
[ Upstream commit 19391a2ca98baa7b80279306cdf7dd43f81fa595 ]

ife_decode() calls pskb_may_pull() two times, we need to reload
ifehdr after the second one, or risk use-after-free as reported
by syzbot:

BUG: KASAN: slab-use-after-free in __ife_tlv_meta_valid net/ife/ife.c:108 [inline]
BUG: KASAN: slab-use-after-free in ife_tlv_meta_decode+0x1d1/0x210 net/ife/ife.c:131
Read of size 2 at addr ffff88802d7300a4 by task syz-executor.5/22323

CPU: 0 PID: 22323 Comm: syz-executor.5 Not tainted 6.7.0-rc3-syzkaller-00804-g074ac38d5b95 #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 11/10/2023
Call Trace:
<TASK>
__dump_stack lib/dump_stack.c:88 [inline]
dump_stack_lvl+0xd9/0x1b0 lib/dump_stack.c:106
print_address_description mm/kasan/report.c:364 [inline]
print_report+0xc4/0x620 mm/kasan/report.c:475
kasan_report+0xda/0x110 mm/kasan/report.c:588
__ife_tlv_meta_valid net/ife/ife.c:108 [inline]
ife_tlv_meta_decode+0x1d1/0x210 net/ife/ife.c:131
tcf_ife_decode net/sched/act_ife.c:739 [inline]
tcf_ife_act+0x4e3/0x1cd0 net/sched/act_ife.c:879
tc_act include/net/tc_wrapper.h:221 [inline]
tcf_action_exec+0x1ac/0x620 net/sched/act_api.c:1079
tcf_exts_exec include/net/pkt_cls.h:344 [inline]
mall_classify+0x201/0x310 net/sched/cls_matchall.c:42
tc_classify include/net/tc_wrapper.h:227 [inline]
__tcf_classify net/sched/cls_api.c:1703 [inline]
tcf_classify+0x82f/0x1260 net/sched/cls_api.c:1800
hfsc_classify net/sched/sch_hfsc.c:1147 [inline]
hfsc_enqueue+0x315/0x1060 net/sched/sch_hfsc.c:1546
dev_qdisc_enqueue+0x3f/0x230 net/core/dev.c:3739
__dev_xmit_skb net/core/dev.c:3828 [inline]
__dev_queue_xmit+0x1de1/0x3d30 net/core/dev.c:4311
dev_queue_xmit include/linux/netdevice.h:3165 [inline]
packet_xmit+0x237/0x350 net/packet/af_packet.c:276
packet_snd net/packet/af_packet.c:3081 [inline]
packet_sendmsg+0x24aa/0x5200 net/packet/af_packet.c:3113
sock_sendmsg_nosec net/socket.c:730 [inline]
__sock_sendmsg+0xd5/0x180 net/socket.c:745
__sys_sendto+0x255/0x340 net/socket.c:2190
__do_sys_sendto net/socket.c:2202 [inline]
__se_sys_sendto net/socket.c:2198 [inline]
__x64_sys_sendto+0xe0/0x1b0 net/socket.c:2198
do_syscall_x64 arch/x86/entry/common.c:51 [inline]
do_syscall_64+0x40/0x110 arch/x86/entry/common.c:82
entry_SYSCALL_64_after_hwframe+0x63/0x6b
RIP: 0033:0x7fe9acc7cae9
Code: 28 00 00 00 75 05 48 83 c4 28 c3 e8 e1 20 00 00 90 48 89 f8 48 89 f7 48 89 d6 48 89 ca 4d 89 c2 4d 89 c8 4c 8b 4c 24 08 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 c7 c1 b0 ff ff ff f7 d8 64 89 01 48
RSP: 002b:00007fe9ada450c8 EFLAGS: 00000246 ORIG_RAX: 000000000000002c
RAX: ffffffffffffffda RBX: 00007fe9acd9bf80 RCX: 00007fe9acc7cae9
RDX: 000000000000fce0 RSI: 00000000200002c0 RDI: 0000000000000003
RBP: 00007fe9accc847a R08: 0000000020000140 R09: 0000000000000014
R10: 0000000000000004 R11: 0000000000000246 R12: 0000000000000000
R13: 000000000000000b R14: 00007fe9acd9bf80 R15: 00007ffd5427ae78
</TASK>

Allocated by task 22323:
kasan_save_stack+0x33/0x50 mm/kasan/common.c:45
kasan_set_track+0x25/0x30 mm/kasan/common.c:52
____kasan_kmalloc mm/kasan/common.c:374 [inline]
__kasan_kmalloc+0xa2/0xb0 mm/kasan/common.c:383
kasan_kmalloc include/linux/kasan.h:198 [inline]
__do_kmalloc_node mm/slab_common.c:1007 [inline]
__kmalloc_node_track_caller+0x5a/0x90 mm/slab_common.c:1027
kmalloc_reserve+0xef/0x260 net/core/skbuff.c:582
__alloc_skb+0x12b/0x330 net/core/skbuff.c:651
alloc_skb include/linux/skbuff.h:1298 [inline]
alloc_skb_with_frags+0xe4/0x710 net/core/skbuff.c:6331
sock_alloc_send_pskb+0x7e4/0x970 net/core/sock.c:2780
packet_alloc_skb net/packet/af_packet.c:2930 [inline]
packet_snd net/packet/af_packet.c:3024 [inline]
packet_sendmsg+0x1e2a/0x5200 net/packet/af_packet.c:3113
sock_sendmsg_nosec net/socket.c:730 [inline]
__sock_sendmsg+0xd5/0x180 net/socket.c:745
__sys_sendto+0x255/0x340 net/socket.c:2190
__do_sys_sendto net/socket.c:2202 [inline]
__se_sys_sendto net/socket.c:2198 [inline]
__x64_sys_sendto+0xe0/0x1b0 net/socket.c:2198
do_syscall_x64 arch/x86/entry/common.c:51 [inline]
do_syscall_64+0x40/0x110 arch/x86/entry/common.c:82
entry_SYSCALL_64_after_hwframe+0x63/0x6b

Freed by task 22323:
kasan_save_stack+0x33/0x50 mm/kasan/common.c:45
kasan_set_track+0x25/0x30 mm/kasan/common.c:52
kasan_save_free_info+0x2b/0x40 mm/kasan/generic.c:522
____kasan_slab_free mm/kasan/common.c:236 [inline]
____kasan_slab_free+0x15b/0x1b0 mm/kasan/common.c:200
kasan_slab_free include/linux/kasan.h:164 [inline]
slab_free_hook mm/slub.c:1800 [inline]
slab_free_freelist_hook+0x114/0x1e0 mm/slub.c:1826
slab_free mm/slub.c:3809 [inline]
__kmem_cache_free+0xc0/0x180 mm/slub.c:3822
skb_kfree_head net/core/skbuff.c:950 [inline]
skb_free_head+0x110/0x1b0 net/core/skbuff.c:962
pskb_expand_head+0x3c5/0x1170 net/core/skbuff.c:2130
__pskb_pull_tail+0xe1/0x1830 net/core/skbuff.c:2655
pskb_may_pull_reason include/linux/skbuff.h:2685 [inline]
pskb_may_pull include/linux/skbuff.h:2693 [inline]
ife_decode+0x394/0x4f0 net/ife/ife.c:82
tcf_ife_decode net/sched/act_ife.c:727 [inline]
tcf_ife_act+0x43b/0x1cd0 net/sched/act_ife.c:879
tc_act include/net/tc_wrapper.h:221 [inline]
tcf_action_exec+0x1ac/0x620 net/sched/act_api.c:1079
tcf_exts_exec include/net/pkt_cls.h:344 [inline]
mall_classify+0x201/0x310 net/sched/cls_matchall.c:42
tc_classify include/net/tc_wrapper.h:227 [inline]
__tcf_classify net/sched/cls_api.c:1703 [inline]
tcf_classify+0x82f/0x1260 net/sched/cls_api.c:1800
hfsc_classify net/sched/sch_hfsc.c:1147 [inline]
hfsc_enqueue+0x315/0x1060 net/sched/sch_hfsc.c:1546
dev_qdisc_enqueue+0x3f/0x230 net/core/dev.c:3739
__dev_xmit_skb net/core/dev.c:3828 [inline]
__dev_queue_xmit+0x1de1/0x3d30 net/core/dev.c:4311
dev_queue_xmit include/linux/netdevice.h:3165 [inline]
packet_xmit+0x237/0x350 net/packet/af_packet.c:276
packet_snd net/packet/af_packet.c:3081 [inline]
packet_sendmsg+0x24aa/0x5200 net/packet/af_packet.c:3113
sock_sendmsg_nosec net/socket.c:730 [inline]
__sock_sendmsg+0xd5/0x180 net/socket.c:745
__sys_sendto+0x255/0x340 net/socket.c:2190
__do_sys_sendto net/socket.c:2202 [inline]
__se_sys_sendto net/socket.c:2198 [inline]
__x64_sys_sendto+0xe0/0x1b0 net/socket.c:2198
do_syscall_x64 arch/x86/entry/common.c:51 [inline]
do_syscall_64+0x40/0x110 arch/x86/entry/common.c:82
entry_SYSCALL_64_after_hwframe+0x63/0x6b

The buggy address belongs to the object at ffff88802d730000
which belongs to the cache kmalloc-8k of size 8192
The buggy address is located 164 bytes inside of
freed 8192-byte region [ffff88802d730000, ffff88802d732000)

The buggy address belongs to the physical page:
page:ffffea0000b5cc00 refcount:1 mapcount:0 mapping:0000000000000000 index:0x0 pfn:0x2d730
head:ffffea0000b5cc00 order:3 entire_mapcount:0 nr_pages_mapped:0 pincount:0
flags: 0xfff00000000840(slab|head|node=0|zone=1|lastcpupid=0x7ff)
page_type: 0xffffffff()
raw: 00fff00000000840 ffff888013042280 dead000000000122 0000000000000000
raw: 0000000000000000 0000000080020002 00000001ffffffff 0000000000000000
page dumped because: kasan: bad access detected
page_owner tracks the page as allocated
page last allocated via order 3, migratetype Unmovable, gfp_mask 0x1d20c0(__GFP_IO|__GFP_FS|__GFP_NOWARN|__GFP_NORETRY|__GFP_COMP|__GFP_NOMEMALLOC|__GFP_HARDWALL), pid 22323, tgid 22320 (syz-executor.5), ts 950317230369, free_ts 950233467461
set_page_owner include/linux/page_owner.h:31 [inline]
post_alloc_hook+0x2d0/0x350 mm/page_alloc.c:1544
prep_new_page mm/page_alloc.c:1551 [inline]
get_page_from_freelist+0xa28/0x3730 mm/page_alloc.c:3319
__alloc_pages+0x22e/0x2420 mm/page_alloc.c:4575
alloc_pages_mpol+0x258/0x5f0 mm/mempolicy.c:2133
alloc_slab_page mm/slub.c:1870 [inline]
allocate_slab mm/slub.c:2017 [inline]
new_slab+0x283/0x3c0 mm/slub.c:2070
___slab_alloc+0x979/0x1500 mm/slub.c:3223
__slab_alloc.constprop.0+0x56/0xa0 mm/slub.c:3322
__slab_alloc_node mm/slub.c:3375 [inline]
slab_alloc_node mm/slub.c:3468 [inline]
__kmem_cache_alloc_node+0x131/0x310 mm/slub.c:3517
__do_kmalloc_node mm/slab_common.c:1006 [inline]
__kmalloc_node_track_caller+0x4a/0x90 mm/slab_common.c:1027
kmalloc_reserve+0xef/0x260 net/core/skbuff.c:582
__alloc_skb+0x12b/0x330 net/core/skbuff.c:651
alloc_skb include/linux/skbuff.h:1298 [inline]
alloc_skb_with_frags+0xe4/0x710 net/core/skbuff.c:6331
sock_alloc_send_pskb+0x7e4/0x970 net/core/sock.c:2780
packet_alloc_skb net/packet/af_packet.c:2930 [inline]
packet_snd net/packet/af_packet.c:3024 [inline]
packet_sendmsg+0x1e2a/0x5200 net/packet/af_packet.c:3113
sock_sendmsg_nosec net/socket.c:730 [inline]
__sock_sendmsg+0xd5/0x180 net/socket.c:745
__sys_sendto+0x255/0x340 net/socket.c:2190
page last free stack trace:
reset_page_owner include/linux/page_owner.h:24 [inline]
free_pages_prepare mm/page_alloc.c:1144 [inline]
free_unref_page_prepare+0x53c/0xb80 mm/page_alloc.c:2354
free_unref_page+0x33/0x3b0 mm/page_alloc.c:2494
__unfreeze_partials+0x226/0x240 mm/slub.c:2655
qlink_free mm/kasan/quarantine.c:168 [inline]
qlist_free_all+0x6a/0x170 mm/kasan/quarantine.c:187
kasan_quarantine_reduce+0x18e/0x1d0 mm/kasan/quarantine.c:294
__kasan_slab_alloc+0x65/0x90 mm/kasan/common.c:305
kasan_slab_alloc include/linux/kasan.h:188 [inline]
slab_post_alloc_hook mm/slab.h:763 [inline]
slab_alloc_node mm/slub.c:3478 [inline]
slab_alloc mm/slub.c:3486 [inline]
__kmem_cache_alloc_lru mm/slub.c:3493 [inline]
kmem_cache_alloc_lru+0x219/0x6f0 mm/slub.c:3509
alloc_inode_sb include/linux/fs.h:2937 [inline]
ext4_alloc_inode+0x28/0x650 fs/ext4/super.c:1408
alloc_inode+0x5d/0x220 fs/inode.c:261
new_inode_pseudo fs/inode.c:1006 [inline]
new_inode+0x22/0x260 fs/inode.c:1032
__ext4_new_inode+0x333/0x5200 fs/ext4/ialloc.c:958
ext4_symlink+0x5d7/0xa20 fs/ext4/namei.c:3398
vfs_symlink fs/namei.c:4464 [inline]
vfs_symlink+0x3e5/0x620 fs/namei.c:4448
do_symlinkat+0x25f/0x310 fs/namei.c:4490
__do_sys_symlinkat fs/namei.c:4506 [inline]
__se_sys_symlinkat fs/namei.c:4503 [inline]
__x64_sys_symlinkat+0x97/0xc0 fs/namei.c:4503
do_syscall_x64 arch/x86/entry/common.c:51 [inline]
do_syscall_64+0x40/0x110 arch/x86/entry/common.c:82

Fixes: d57493d6d1be ("net: sched: ife: check on metadata length")
Reported-by: syzbot <syzkaller@googlegroups.com>
Signed-off-by: Eric Dumazet <edumazet@google.com>
Cc: Jamal Hadi Salim <jhs@mojatatu.com>
Cc: Alexander Aring <aahringo@redhat.com>
Acked-by: Jamal Hadi Salim <jhs@mojatatu.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Signed-off-by: Sasha Levin <sashal@kernel.org>
2024-01-05 15:13:29 +01:00
Rahul Rameshbabu
242670aab8 net/mlx5e: Correct snprintf truncation handling for fw_version buffer used by representors
[ Upstream commit b13559b76157de9d74f04d3ca0e49d69de3b5675 ]

snprintf returns the length of the formatted string, excluding the trailing
null, without accounting for truncation. This means that is the return
value is greater than or equal to the size parameter, the fw_version string
was truncated.

Link: https://docs.kernel.org/core-api/kernel-api.html#c.snprintf
Fixes: 1b2bd0c0264f ("net/mlx5e: Check return value of snprintf writing to fw_version buffer for representors")
Signed-off-by: Rahul Rameshbabu <rrameshbabu@nvidia.com>
Reviewed-by: Simon Horman <horms@kernel.org>
Signed-off-by: Saeed Mahameed <saeedm@nvidia.com>
Signed-off-by: Sasha Levin <sashal@kernel.org>
2024-01-05 15:13:29 +01:00
Moshe Shemesh
da2396b546 net/mlx5: Fix fw tracer first block check
[ Upstream commit 4261edf11cb7c9224af713a102e5616329306932 ]

While handling new traces, to verify it is not the first block being
written, last_timestamp is checked. But instead of checking it is non
zero it is verified to be zero. Fix to verify last_timestamp is not
zero.

Fixes: c71ad41ccb0c ("net/mlx5: FW tracer, events handling")
Signed-off-by: Moshe Shemesh <moshe@nvidia.com>
Reviewed-by: Feras Daoud <ferasda@nvidia.com>
Signed-off-by: Saeed Mahameed <saeedm@nvidia.com>
Signed-off-by: Sasha Levin <sashal@kernel.org>
2024-01-05 15:13:29 +01:00
Dinghao Liu
b0873aa484 net/mlx5e: fix a potential double-free in fs_udp_create_groups
[ Upstream commit e75efc6466ae289e599fb12a5a86545dff245c65 ]

When kcalloc() for ft->g succeeds but kvzalloc() for in fails,
fs_udp_create_groups() will free ft->g. However, its caller
fs_udp_create_table() will free ft->g again through calling
mlx5e_destroy_flow_table(), which will lead to a double-free.
Fix this by setting ft->g to NULL in fs_udp_create_groups().

Fixes: 1c80bd684388 ("net/mlx5e: Introduce Flow Steering UDP API")
Signed-off-by: Dinghao Liu <dinghao.liu@zju.edu.cn>
Reviewed-by: Tariq Toukan <tariqt@nvidia.com>
Reviewed-by: Simon Horman <horms@kernel.org>
Signed-off-by: Saeed Mahameed <saeedm@nvidia.com>
Signed-off-by: Sasha Levin <sashal@kernel.org>
2024-01-05 15:13:28 +01:00
Shifeng Li
4ddba57b65 net/mlx5e: Fix slab-out-of-bounds in mlx5_query_nic_vport_mac_list()
[ Upstream commit ddb38ddff9c71026bad481b791a94d446ee37603 ]

Out_sz that the size of out buffer is calculated using query_nic_vport
_context_in structure when driver query the MAC list. However query_nic
_vport_context_in structure is smaller than query_nic_vport_context_out.
When allowed_list_size is greater than 96, calling ether_addr_copy() will
trigger an slab-out-of-bounds.

[ 1170.055866] BUG: KASAN: slab-out-of-bounds in mlx5_query_nic_vport_mac_list+0x481/0x4d0 [mlx5_core]
[ 1170.055869] Read of size 4 at addr ffff88bdbc57d912 by task kworker/u128:1/461
[ 1170.055870]
[ 1170.055932] Workqueue: mlx5_esw_wq esw_vport_change_handler [mlx5_core]
[ 1170.055936] Call Trace:
[ 1170.055949]  dump_stack+0x8b/0xbb
[ 1170.055958]  print_address_description+0x6a/0x270
[ 1170.055961]  kasan_report+0x179/0x2c0
[ 1170.056061]  mlx5_query_nic_vport_mac_list+0x481/0x4d0 [mlx5_core]
[ 1170.056162]  esw_update_vport_addr_list+0x2c5/0xcd0 [mlx5_core]
[ 1170.056257]  esw_vport_change_handle_locked+0xd08/0x1a20 [mlx5_core]
[ 1170.056377]  esw_vport_change_handler+0x6b/0x90 [mlx5_core]
[ 1170.056381]  process_one_work+0x65f/0x12d0
[ 1170.056383]  worker_thread+0x87/0xb50
[ 1170.056390]  kthread+0x2e9/0x3a0
[ 1170.056394]  ret_from_fork+0x1f/0x40

Fixes: e16aea2744ab ("net/mlx5: Introduce access functions to modify/query vport mac lists")
Cc: Ding Hui <dinghui@sangfor.com.cn>
Signed-off-by: Shifeng Li <lishifeng@sangfor.com.cn>
Reviewed-by: Simon Horman <horms@kernel.org>
Signed-off-by: Saeed Mahameed <saeedm@nvidia.com>
Signed-off-by: Sasha Levin <sashal@kernel.org>
2024-01-05 15:13:28 +01:00
Vlad Buslov
5ae420f65a Revert "net/mlx5e: fix double free of encap_header"
[ Upstream commit 5d089684dc434a31e08d32f0530066d0025c52e4 ]

This reverts commit 6f9b1a0731662648949a1c0587f6acb3b7f8acf1.

This patch is causing a null ptr issue, the proper fix is in the next
patch.

Fixes: 6f9b1a073166 ("net/mlx5e: fix double free of encap_header")
Signed-off-by: Vlad Buslov <vladbu@nvidia.com>
Signed-off-by: Saeed Mahameed <saeedm@nvidia.com>
Signed-off-by: Sasha Levin <sashal@kernel.org>
2024-01-05 15:13:28 +01:00
Vlad Buslov
135fa6fac9 Revert "net/mlx5e: fix double free of encap_header in update funcs"
[ Upstream commit 66ca8d4deca09bce3fc7bcf8ea7997fa1a51c33c ]

This reverts commit 3a4aa3cb83563df942be49d145ee3b7ddf17d6bb.

This patch is causing a null ptr issue, the proper fix is in the next
patch.

Fixes: 3a4aa3cb8356 ("net/mlx5e: fix double free of encap_header in update funcs")
Signed-off-by: Vlad Buslov <vladbu@nvidia.com>
Signed-off-by: Saeed Mahameed <saeedm@nvidia.com>
Signed-off-by: Sasha Levin <sashal@kernel.org>
2024-01-05 15:13:28 +01:00
Johannes Berg
b387f06849 wifi: mac80211: mesh_plink: fix matches_local logic
[ Upstream commit 8c386b166e2517cf3a123018e77941ec22625d0f ]

During refactoring the "else" here got lost, add it back.

Fixes: c99a89edb106 ("mac80211: factor out plink event gathering")
Signed-off-by: Johannes Berg <johannes.berg@intel.com>
Signed-off-by: Miri Korenblit <miriam.rachel.korenblit@intel.com>
Link: https://msgid.link/20231211085121.795480fa0e0b.I017d501196a5bbdcd9afd33338d342d6fe1edd79@changeid
Signed-off-by: Johannes Berg <johannes.berg@intel.com>
Signed-off-by: Sasha Levin <sashal@kernel.org>
2024-01-05 15:13:28 +01:00
Johannes Berg
6558f4aa20 wifi: iwlwifi: pcie: add another missing bh-disable for rxq->lock
[ Upstream commit a4754182dc936b97ec7e9f6b08cdf7ed97ef9069 ]

Evidently I had only looked at all the ones in rx.c, and missed this.
Add bh-disable to this use of the rxq->lock as well.

Fixes: 25edc8f259c7 ("iwlwifi: pcie: properly implement NAPI")
Reported-by: Brian Norris <briannorris@chromium.org>
Signed-off-by: Johannes Berg <johannes.berg@intel.com>
Signed-off-by: Miri Korenblit <miriam.rachel.korenblit@intel.com>
Link: https://msgid.link/20231208183100.e79ad3dae649.I8f19713c4383707f8be7fc20ff5cc1ecf12429bb@changeid
Signed-off-by: Johannes Berg <johannes.berg@intel.com>
Signed-off-by: Sasha Levin <sashal@kernel.org>
2024-01-05 15:13:28 +01:00
Heiko Carstens
183ea95f73 s390/vx: fix save/restore of fpu kernel context
[ Upstream commit e6b2dab41888332bf83f592131e7ea07756770a4 ]

The KERNEL_FPR mask only contains a flag for the first eight vector
registers. However floating point registers overlay parts of the first
sixteen vector registers.

This could lead to vector register corruption if a kernel fpu context uses
any of the vector registers 8 to 15 and is interrupted or calls a
KERNEL_FPR context. If that context uses also vector registers 8 to 15,
their contents will be corrupted on return.

Luckily this is currently not a real bug, since the kernel has only one
KERNEL_FPR user with s390_adjust_jiffies() and it is only using floating
point registers 0 to 2.

Fix this by using the correct bits for KERNEL_FPR.

Fixes: 7f79695cc1b6 ("s390/fpu: improve kernel_fpu_[begin|end]")
Signed-off-by: Heiko Carstens <hca@linux.ibm.com>
Reviewed-by: Hendrik Brueckner <brueckner@linux.ibm.com>
Signed-off-by: Alexander Gordeev <agordeev@linux.ibm.com>
Signed-off-by: Sasha Levin <sashal@kernel.org>
2024-01-05 15:13:28 +01:00
Geert Uytterhoeven
58f3fc8333 reset: Fix crash when freeing non-existent optional resets
[ Upstream commit 4a6756f56bcf8e64c87144a626ce53aea4899c0e ]

When obtaining one or more optional resets, non-existent resets are
stored as NULL pointers, and all related error and cleanup paths need to
take this into account.

Currently only reset_control_put() and reset_control_bulk_put()
get this right.  All of __reset_control_bulk_get(),
of_reset_control_array_get(), and reset_control_array_put() lack the
proper checking, causing NULL pointer dereferences on failure or
release.

Fix this by moving the existing check from reset_control_bulk_put() to
__reset_control_put_internal(), so it applies to all callers.
The double check in reset_control_put() doesn't hurt.

Fixes: 17c82e206d2a3cd8 ("reset: Add APIs to manage array of resets")
Fixes: 48d71395896d54ee ("reset: Add reset_control_bulk API")
Signed-off-by: Geert Uytterhoeven <geert+renesas@glider.be>
Link: https://lore.kernel.org/r/2440edae7ca8534628cdbaf559ded288f2998178.1701276806.git.geert+renesas@glider.be
Signed-off-by: Philipp Zabel <p.zabel@pengutronix.de>
Signed-off-by: Sasha Levin <sashal@kernel.org>
2024-01-05 15:13:27 +01:00
Kunwu Chan
52c69a070b ARM: OMAP2+: Fix null pointer dereference and memory leak in omap_soc_device_init
[ Upstream commit c72b9c33ef9695ad7ce7a6eb39a9df8a01b70796 ]

kasprintf() returns a pointer to dynamically allocated memory which can
be NULL upon failure. When 'soc_dev_attr->family' is NULL,it'll trigger
the null pointer dereference issue, such as in 'soc_info_show'.

And when 'soc_device_register' fails, it's necessary to release
'soc_dev_attr->family' to avoid memory leaks.

Fixes: 6770b2114325 ("ARM: OMAP2+: Export SoC information to userspace")
Signed-off-by: Kunwu Chan <chentao@kylinos.cn>
Message-ID: <20231123145237.609442-1-chentao@kylinos.cn>
Signed-off-by: Tony Lindgren <tony@atomide.com>
Signed-off-by: Sasha Levin <sashal@kernel.org>
2024-01-05 15:13:27 +01:00
Andrew Davis
d3ffbbb0bc ARM: dts: dra7: Fix DRA7 L3 NoC node register size
[ Upstream commit 1e5caee2ba8f1426e8098afb4ca38dc40a0ca71b ]

This node can access any part of the L3 configuration registers space,
including CLK1 and CLK2 which are 0x800000 offset. Restore this area
size to include these areas.

Fixes: 7f2659ce657e ("ARM: dts: Move dra7 l3 noc to a separate node")
Signed-off-by: Andrew Davis <afd@ti.com>
Message-ID: <20231113181604.546444-1-afd@ti.com>
Signed-off-by: Tony Lindgren <tony@atomide.com>
Signed-off-by: Sasha Levin <sashal@kernel.org>
2024-01-05 15:13:27 +01:00
Greg Kroah-Hartman
d93fa2c788 Linux 5.15.145
Link: https://lore.kernel.org/r/20231220160931.251686445@linuxfoundation.org
Tested-by: Florian Fainelli <florian.fainelli@broadcom.com>
Tested-by: Allen Pais <apais@linux.microsoft.com>
Tested-by: Shuah Khan <skhan@linuxfoundation.org>
Tested-by: Namjae Jeon <linkinjeon@kernel.org>
Tested-by: Linux Kernel Functional Testing <lkft@linaro.org>
Tested-by: Ron Economos <re@w6rz.net>
Tested-by: Guenter Roeck <linux@roeck-us.net>
Tested-by: SeongJae Park <sj@kernel.org>
Tested-by: Jon Hunter <jonathanh@nvidia.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
v5.15.145
2023-12-23 10:42:00 +01:00
Arnd Bergmann
ee41f667aa kasan: disable kasan_non_canonical_hook() for HW tags
commit 17c17567fe510857b18fe01b7a88027600e76ac6 upstream.

On arm64, building with CONFIG_KASAN_HW_TAGS now causes a compile-time
error:

mm/kasan/report.c: In function 'kasan_non_canonical_hook':
mm/kasan/report.c:637:20: error: 'KASAN_SHADOW_OFFSET' undeclared (first use in this function)
  637 |         if (addr < KASAN_SHADOW_OFFSET)
      |                    ^~~~~~~~~~~~~~~~~~~
mm/kasan/report.c:637:20: note: each undeclared identifier is reported only once for each function it appears in
mm/kasan/report.c:640:77: error: expected expression before ';' token
  640 |         orig_addr = (addr - KASAN_SHADOW_OFFSET) << KASAN_SHADOW_SCALE_SHIFT;

This was caused by removing the dependency on CONFIG_KASAN_INLINE that
used to prevent this from happening. Use the more specific dependency
on KASAN_SW_TAGS || KASAN_GENERIC to only ignore the function for hwasan
mode.

Link: https://lkml.kernel.org/r/20231016200925.984439-1-arnd@kernel.org
Fixes: 12ec6a919b0f ("kasan: print the original fault addr when access invalid shadow")
Signed-off-by: Arnd Bergmann <arnd@arndb.de>
Cc: Alexander Potapenko <glider@google.com>
Cc: Andrey Konovalov <andreyknvl@gmail.com>
Cc: Andrey Ryabinin <ryabinin.a.a@gmail.com>
Cc: Dmitry Vyukov <dvyukov@google.com>
Cc: Haibo Li <haibo.li@mediatek.com>
Cc: Kees Cook <keescook@chromium.org>
Cc: Vincenzo Frascino <vincenzo.frascino@arm.com>
Cc: AngeloGioacchino Del Regno <angelogioacchino.delregno@collabora.com>
Cc: Matthias Brugger <matthias.bgg@gmail.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Amit Pundir <amit.pundir@linaro.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2023-12-23 10:42:00 +01:00
Francis Laniel
f30f893143 tracing/kprobes: Return EADDRNOTAVAIL when func matches several symbols
commit b022f0c7e404887a7c5229788fc99eff9f9a80d5 upstream.

When a kprobe is attached to a function that's name is not unique (is
static and shares the name with other functions in the kernel), the
kprobe is attached to the first function it finds. This is a bug as the
function that it is attaching to is not necessarily the one that the
user wants to attach to.

Instead of blindly picking a function to attach to what is ambiguous,
error with EADDRNOTAVAIL to let the user know that this function is not
unique, and that the user must use another unique function with an
address offset to get to the function they want to attach to.

Link: https://lore.kernel.org/all/20231020104250.9537-2-flaniel@linux.microsoft.com/

Cc: stable@vger.kernel.org
Fixes: 413d37d1eb69 ("tracing: Add kprobe-based event tracer")
Suggested-by: Masami Hiramatsu <mhiramat@kernel.org>
Signed-off-by: Francis Laniel <flaniel@linux.microsoft.com>
Link: https://lore.kernel.org/lkml/20230819101105.b0c104ae4494a7d1f2eea742@kernel.org/
Acked-by: Masami Hiramatsu (Google) <mhiramat@kernel.org>
Signed-off-by: Masami Hiramatsu (Google) <mhiramat@kernel.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2023-12-23 10:42:00 +01:00
Amit Pundir
7aa33c99b5 Revert "drm/bridge: lt9611uxc: Switch to devm MIPI-DSI helpers"
This reverts commit f53a045793289483b3c2930007fc52c7f1f642d5.

This and the dependent fixes broke display on RB5.

Signed-off-by: Amit Pundir <amit.pundir@linaro.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2023-12-23 10:42:00 +01:00
Amit Pundir
4a8350a0ea Revert "drm/bridge: lt9611uxc: Register and attach our DSI device at probe"
This reverts commit 29aba28ea195182f547cd8dac1b80eed51b6b73d.

This and the dependent fixes broke display on RB5.

Signed-off-by: Amit Pundir <amit.pundir@linaro.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2023-12-23 10:42:00 +01:00
Amit Pundir
e21817ce16 Revert "drm/bridge: lt9611uxc: fix the race in the error path"
This reverts commit d0d01bb4a56093fa214c0949e9e7ccb9fb437795.

This and the dependent fixes broke display on RB5.

Signed-off-by: Amit Pundir <amit.pundir@linaro.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2023-12-23 10:42:00 +01:00
Namjae Jeon
811b5eaee7 ksmbd: don't update ->op_state as OPLOCK_STATE_NONE on error
[ Upstream commit cd80ce7e68f1624ac29cd0a6b057789d1236641e ]

ksmbd set ->op_state as OPLOCK_STATE_NONE on lease break ack error.
op_state of lease should not be updated because client can send lease
break ack again. This patch fix smb2.lease.breaking2 test failure.

Signed-off-by: Namjae Jeon <linkinjeon@kernel.org>
Signed-off-by: Steve French <stfrench@microsoft.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2023-12-23 10:42:00 +01:00
Namjae Jeon
bd47f9c8b5 ksmbd: move setting SMB2_FLAGS_ASYNC_COMMAND and AsyncId
[ Upstream commit 9ac45ac7cf65b0623ceeab9b28b307a08efa22dc ]

Directly set SMB2_FLAGS_ASYNC_COMMAND flags and AsyncId in smb2 header of
interim response instead of current response header.

Signed-off-by: Namjae Jeon <linkinjeon@kernel.org>
Signed-off-by: Steve French <stfrench@microsoft.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2023-12-23 10:42:00 +01:00
Namjae Jeon
5e1f31378a ksmbd: release interim response after sending status pending response
[ Upstream commit 2a3f7857ec742e212d6cee7fbbf7b0e2ae7f5161 ]

Add missing release async id and delete interim response entry after
sending status pending response. This only cause when smb2 lease is enable.

Signed-off-by: Namjae Jeon <linkinjeon@kernel.org>
Signed-off-by: Steve French <stfrench@microsoft.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2023-12-23 10:42:00 +01:00
Namjae Jeon
c21d044508 ksmbd: move oplock handling after unlock parent dir
[ Upstream commit 2e450920d58b4991a436c8cecf3484bcacd8e535 ]

ksmbd should process secound parallel smb2 create request during waiting
oplock break ack. parent lock range that is too large in smb2_open() causes
smb2_open() to be serialized. Move the oplock handling to the bottom of
smb2_open() and make it called after parent unlock. This fixes the failure
of smb2.lease.breaking1 testcase.

Signed-off-by: Namjae Jeon <linkinjeon@kernel.org>
Signed-off-by: Steve French <stfrench@microsoft.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2023-12-23 10:42:00 +01:00
Namjae Jeon
772d81aeec ksmbd: separately allocate ci per dentry
[ Upstream commit 4274a9dc6aeb9fea66bffba15697a35ae8983b6a ]

xfstests generic/002 test fail when enabling smb2 leases feature.
This test create hard link file, but removeal failed.
ci has a file open count to count file open through the smb client,
but in the case of hard link files, The allocation of ci per inode
cause incorrectly open count for file deletion. This patch allocate
ci per dentry to counts open counts for hard link.

Signed-off-by: Namjae Jeon <linkinjeon@kernel.org>
Signed-off-by: Steve French <stfrench@microsoft.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2023-12-23 10:41:59 +01:00
Namjae Jeon
8ed1118da8 ksmbd: fix possible deadlock in smb2_open
[ Upstream commit 864fb5d3716303a045c3ffb397f651bfd37bfb36 ]

[ 8743.393379] ======================================================
[ 8743.393385] WARNING: possible circular locking dependency detected
[ 8743.393391] 6.4.0-rc1+ #11 Tainted: G           OE
[ 8743.393397] ------------------------------------------------------
[ 8743.393402] kworker/0:2/12921 is trying to acquire lock:
[ 8743.393408] ffff888127a14460 (sb_writers#8){.+.+}-{0:0}, at: ksmbd_vfs_setxattr+0x3d/0xd0 [ksmbd]
[ 8743.393510]
               but task is already holding lock:
[ 8743.393515] ffff8880360d97f0 (&type->i_mutex_dir_key#6/1){+.+.}-{3:3}, at: ksmbd_vfs_kern_path_locked+0x181/0x670 [ksmbd]
[ 8743.393618]
               which lock already depends on the new lock.

[ 8743.393623]
               the existing dependency chain (in reverse order) is:
[ 8743.393628]
               -> #1 (&type->i_mutex_dir_key#6/1){+.+.}-{3:3}:
[ 8743.393648]        down_write_nested+0x9a/0x1b0
[ 8743.393660]        filename_create+0x128/0x270
[ 8743.393670]        do_mkdirat+0xab/0x1f0
[ 8743.393680]        __x64_sys_mkdir+0x47/0x60
[ 8743.393690]        do_syscall_64+0x5d/0x90
[ 8743.393701]        entry_SYSCALL_64_after_hwframe+0x72/0xdc
[ 8743.393711]
               -> #0 (sb_writers#8){.+.+}-{0:0}:
[ 8743.393728]        __lock_acquire+0x2201/0x3b80
[ 8743.393737]        lock_acquire+0x18f/0x440
[ 8743.393746]        mnt_want_write+0x5f/0x240
[ 8743.393755]        ksmbd_vfs_setxattr+0x3d/0xd0 [ksmbd]
[ 8743.393839]        ksmbd_vfs_set_dos_attrib_xattr+0xcc/0x110 [ksmbd]
[ 8743.393924]        compat_ksmbd_vfs_set_dos_attrib_xattr+0x39/0x50 [ksmbd]
[ 8743.394010]        smb2_open+0x3432/0x3cc0 [ksmbd]
[ 8743.394099]        handle_ksmbd_work+0x2c9/0x7b0 [ksmbd]
[ 8743.394187]        process_one_work+0x65a/0xb30
[ 8743.394198]        worker_thread+0x2cf/0x700
[ 8743.394209]        kthread+0x1ad/0x1f0
[ 8743.394218]        ret_from_fork+0x29/0x50

This patch add mnt_want_write() above parent inode lock and remove
nested mnt_want_write calls in smb2_open().

Fixes: 40b268d384a2 ("ksmbd: add mnt_want_write to ksmbd vfs functions")
Cc: stable@vger.kernel.org
Reported-by: Marios Makassikis <mmakassikis@freebox.fr>
Signed-off-by: Namjae Jeon <linkinjeon@kernel.org>
Signed-off-by: Steve French <stfrench@microsoft.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2023-12-23 10:41:59 +01:00
Zongmin Zhou
ae3356cbe9 ksmbd: prevent memory leak on error return
[ Upstream commit 90044481e7cca6cb3125b3906544954a25f1309f ]

When allocated memory for 'new' failed,just return
will cause memory leak of 'ar'.

Fixes: 1819a9042999 ("ksmbd: reorganize ksmbd_iov_pin_rsp()")
Reported-by: kernel test robot <lkp@intel.com>
Reported-by: Dan Carpenter <error27@gmail.com>
Closes: https://lore.kernel.org/r/202311031837.H3yo7JVl-lkp@intel.com/
Signed-off-by: Zongmin Zhou<zhouzongmin@kylinos.cn>
Acked-by: Namjae Jeon <linkinjeon@kernel.org>
Signed-off-by: Steve French <stfrench@microsoft.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2023-12-23 10:41:59 +01:00
Namjae Jeon
8dc9eb7d35 ksmbd: handle malformed smb1 message
[ Upstream commit 5a5409d90bd05f87fe5623a749ccfbf3f7c7d400 ]

If set_smb1_rsp_status() is not implemented, It will cause NULL pointer
dereferece error when client send malformed smb1 message.
This patch add set_smb1_rsp_status() to ignore malformed smb1 message.

Cc: stable@vger.kernel.org
Reported-by: Robert Morris <rtm@csail.mit.edu>
Signed-off-by: Namjae Jeon <linkinjeon@kernel.org>
Signed-off-by: Steve French <stfrench@microsoft.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2023-12-23 10:41:59 +01:00
Namjae Jeon
1f50c418d4 ksmbd: fix kernel-doc comment of ksmbd_vfs_kern_path_locked()
[ Upstream commit f6049712e520287ad695e9d4f1572ab76807fa0c ]

Fix argument list that the kdoc format and script verified in
ksmbd_vfs_kern_path_locked().

fs/smb/server/vfs.c:1207: warning: Function parameter or member 'parent_path'
not described in 'ksmbd_vfs_kern_path_locked'

Reported-by: kernel test robot <lkp@intel.com>
Signed-off-by: Namjae Jeon <linkinjeon@kernel.org>
Signed-off-by: Steve French <stfrench@microsoft.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2023-12-23 10:41:59 +01:00
Namjae Jeon
3fecda5d85 ksmbd: no need to wait for binded connection termination at logoff
[ Upstream commit 67797da8a4b82446d42c52b6ee1419a3100d78ff ]

The connection could be binded to the existing session for Multichannel.
session will be destroyed when binded connections are released.
So no need to wait for that's connection at logoff.

Signed-off-by: Namjae Jeon <linkinjeon@kernel.org>
Signed-off-by: Steve French <stfrench@microsoft.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2023-12-23 10:41:59 +01:00
Namjae Jeon
841bcade09 ksmbd: add support for surrogate pair conversion
[ Upstream commit 0c180317c654a494fe429adbf7bc9b0793caf9e2 ]

ksmbd is missing supporting to convert filename included surrogate pair
characters. It triggers a "file or folder does not exist" error in
Windows client.

[Steps to Reproduce for bug]
1. Create surrogate pair file
 touch $(echo -e '\xf0\x9d\x9f\xa3')
 touch $(echo -e '\xf0\x9d\x9f\xa4')

2. Try to open these files in ksmbd share through Windows client.

This patch update unicode functions not to consider about surrogate pair
(and IVS).

Reviewed-by: Marios Makassikis <mmakassikis@freebox.fr>
Tested-by: Marios Makassikis <mmakassikis@freebox.fr>
Signed-off-by: Namjae Jeon <linkinjeon@kernel.org>
Signed-off-by: Steve French <stfrench@microsoft.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2023-12-23 10:41:59 +01:00