896947 Commits

Author SHA1 Message Date
Andrey Avdeev
0ccea97abe platform/x86: touchscreen_dmi: Add info for the Dexp Ursus KX210i
commit 4b65f95c87c35699bc6ad540d6b9dd7f950d0924 upstream.

Add touchscreen info for the Dexp Ursus KX210i

Signed-off-by: Andrey Avdeev <jamesstoun@gmail.com>
Link: https://lore.kernel.org/r/ZE4gRgzRQCjXFYD0@avdeevavpc
Cc: stable@vger.kernel.org
Reviewed-by: Hans de Goede <hdegoede@redhat.com>
Signed-off-by: Hans de Goede <hdegoede@redhat.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2023-05-17 11:36:01 +02:00
Pawel Witek
871641c7eb cifs: fix pcchunk length type in smb2_copychunk_range
commit d66cde50c3c868af7abddafce701bb86e4a93039 upstream.

Change type of pcchunk->Length from u32 to u64 to match
smb2_copychunk_range arguments type. Fixes the problem where performing
server-side copy with CIFS_IOC_COPYCHUNK_FILE ioctl resulted in incomplete
copy of large files while returning -EINVAL.

Fixes: 9bf0c9cd4314 ("CIFS: Fix SMB2/SMB3 Copy offload support (refcopy) for large files")
Cc: <stable@vger.kernel.org>
Signed-off-by: Pawel Witek <pawel.ireneusz.witek@gmail.com>
Signed-off-by: Steve French <stfrench@microsoft.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2023-05-17 11:36:00 +02:00
Anastasia Belova
3e2b4bceaa btrfs: print-tree: parent bytenr must be aligned to sector size
commit c87f318e6f47696b4040b58f460d5c17ea0280e6 upstream.

Check nodesize to sectorsize in alignment check in print_extent_item.
The comment states that and this is correct, similar check is done
elsewhere in the functions.

Found by Linux Verification Center (linuxtesting.org) with SVACE.

Fixes: ea57788eb76d ("btrfs: require only sector size alignment for parent eb bytenr")
CC: stable@vger.kernel.org # 4.14+
Reviewed-by: Qu Wenruo <wqu@suse.com>
Signed-off-by: Anastasia Belova <abelova@astralinux.ru>
Reviewed-by: David Sterba <dsterba@suse.com>
Signed-off-by: David Sterba <dsterba@suse.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2023-05-17 11:36:00 +02:00
Josef Bacik
1e05bf5e80 btrfs: don't free qgroup space unless specified
commit d246331b78cbef86237f9c22389205bc9b4e1cc1 upstream.

Boris noticed in his simple quotas testing that he was getting a leak
with Sweet Tea's change to subvol create that stopped doing a
transaction commit.  This was just a side effect of that change.

In the delayed inode code we have an optimization that will free extra
reservations if we think we can pack a dir item into an already modified
leaf.  Previously this wouldn't be triggered in the subvolume create
case because we'd commit the transaction, it was still possible but
much harder to trigger.  It could actually be triggered if we did a
mkdir && subvol create with qgroups enabled.

This occurs because in btrfs_insert_delayed_dir_index(), which gets
called when we're adding the dir item, we do the following:

  btrfs_block_rsv_release(fs_info, trans->block_rsv, bytes, NULL);

if we're able to skip reserving space.

The problem here is that trans->block_rsv points at the temporary block
rsv for the subvolume create, which has qgroup reservations in the block
rsv.

This is a problem because btrfs_block_rsv_release() will do the
following:

  if (block_rsv->qgroup_rsv_reserved >= block_rsv->qgroup_rsv_size) {
	  qgroup_to_release = block_rsv->qgroup_rsv_reserved -
		  block_rsv->qgroup_rsv_size;
	  block_rsv->qgroup_rsv_reserved = block_rsv->qgroup_rsv_size;
  }

The temporary block rsv just has ->qgroup_rsv_reserved set,
->qgroup_rsv_size == 0.  The optimization in
btrfs_insert_delayed_dir_index() sets ->qgroup_rsv_reserved = 0.  Then
later on when we call btrfs_subvolume_release_metadata() which has

  btrfs_block_rsv_release(fs_info, rsv, (u64)-1, &qgroup_to_release);
  btrfs_qgroup_convert_reserved_meta(root, qgroup_to_release);

qgroup_to_release is set to 0, and we do not convert the reserved
metadata space.

The problem here is that the block rsv code has been unconditionally
messing with ->qgroup_rsv_reserved, because the main place this is used
is delalloc, and any time we call btrfs_block_rsv_release() we do it
with qgroup_to_release set, and thus do the proper accounting.

The subvolume code is the only other code that uses the qgroup
reservation stuff, but it's intermingled with the above optimization,
and thus was getting its reservation freed out from underneath it and
thus leaking the reserved space.

The solution is to simply not mess with the qgroup reservations if we
don't have qgroup_to_release set.  This works with the existing code as
anything that messes with the delalloc reservations always have
qgroup_to_release set.  This fixes the leak that Boris was observing.

Reviewed-by: Qu Wenruo <wqu@suse.com>
CC: stable@vger.kernel.org # 5.4+
Signed-off-by: Josef Bacik <josef@toxicpanda.com>
Signed-off-by: David Sterba <dsterba@suse.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2023-05-17 11:36:00 +02:00
Filipe Manana
b232f5e8cf btrfs: fix btrfs_prev_leaf() to not return the same key twice
commit 6f932d4ef007d6a4ae03badcb749fbb8f49196f6 upstream.

A call to btrfs_prev_leaf() may end up returning a path that points to the
same item (key) again. This happens if while btrfs_prev_leaf(), after we
release the path, a concurrent insertion happens, which moves items off
from a sibling into the front of the previous leaf, and an item with the
computed previous key does not exists.

For example, suppose we have the two following leaves:

  Leaf A

  -------------------------------------------------------------
  | ...   key (300 96 10)   key (300 96 15)   key (300 96 16) |
  -------------------------------------------------------------
              slot 20             slot 21             slot 22

  Leaf B

  -------------------------------------------------------------
  | key (300 96 20)   key (300 96 21)   key (300 96 22)   ... |
  -------------------------------------------------------------
      slot 0             slot 1             slot 2

If we call btrfs_prev_leaf(), from btrfs_previous_item() for example, with
a path pointing to leaf B and slot 0 and the following happens:

1) At btrfs_prev_leaf() we compute the previous key to search as:
   (300 96 19), which is a key that does not exists in the tree;

2) Then we call btrfs_release_path() at btrfs_prev_leaf();

3) Some other task inserts a key at leaf A, that sorts before the key at
   slot 20, for example it has an objectid of 299. In order to make room
   for the new key, the key at slot 22 is moved to the front of leaf B.
   This happens at push_leaf_right(), called from split_leaf().

   After this leaf B now looks like:

  --------------------------------------------------------------------------------
  | key (300 96 16)    key (300 96 20)   key (300 96 21)   key (300 96 22)   ... |
  --------------------------------------------------------------------------------
       slot 0              slot 1             slot 2             slot 3

4) At btrfs_prev_leaf() we call btrfs_search_slot() for the computed
   previous key: (300 96 19). Since the key does not exists,
   btrfs_search_slot() returns 1 and with a path pointing to leaf B
   and slot 1, the item with key (300 96 20);

5) This makes btrfs_prev_leaf() return a path that points to slot 1 of
   leaf B, the same key as before it was called, since the key at slot 0
   of leaf B (300 96 16) is less than the computed previous key, which is
   (300 96 19);

6) As a consequence btrfs_previous_item() returns a path that points again
   to the item with key (300 96 20).

For some users of btrfs_prev_leaf() or btrfs_previous_item() this may not
be functional a problem, despite not making sense to return a new path
pointing again to the same item/key. However for a caller such as
tree-log.c:log_dir_items(), this has a bad consequence, as it can result
in not logging some dir index deletions in case the directory is being
logged without holding the inode's VFS lock (logging triggered while
logging a child inode for example) - for the example scenario above, in
case the dir index keys 17, 18 and 19 were deleted in the current
transaction.

CC: stable@vger.kernel.org # 4.14+
Reviewed-by: Josef Bacik <josef@toxicpanda.com>
Signed-off-by: Filipe Manana <fdmanana@suse.com>
Signed-off-by: David Sterba <dsterba@suse.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2023-05-17 11:36:00 +02:00
Yang Jihong
96f71f669b perf symbols: Fix return incorrect build_id size in elf_read_build_id()
[ Upstream commit 1511e4696acb715a4fe48be89e1e691daec91c0e ]

In elf_read_build_id(), if gnu build_id is found, should return the size of
the actually copied data. If descsz is greater thanBuild_ID_SIZE,
write_buildid data access may occur.

Fixes: be96ea8ffa788dcc ("perf symbols: Fix issue with binaries using 16-bytes buildids (v2)")
Reported-by: Will Ochowicz <Will.Ochowicz@genusplc.com>
Signed-off-by: Yang Jihong <yangjihong1@huawei.com>
Tested-by: Will Ochowicz <Will.Ochowicz@genusplc.com>
Acked-by: Adrian Hunter <adrian.hunter@intel.com>
Cc: Alexander Shishkin <alexander.shishkin@linux.intel.com>
Cc: Ian Rogers <irogers@google.com>
Cc: Ingo Molnar <mingo@redhat.com>
Cc: Jiri Olsa <jolsa@kernel.org>
Cc: Leo Yan <leo.yan@linaro.org>
Cc: Mark Rutland <mark.rutland@arm.com>
Cc: Namhyung Kim <namhyung@kernel.org>
Cc: Peter Zijlstra <peterz@infradead.org>
Cc: Stephane Eranian <eranian@google.com>
Link: https://lore.kernel.org/lkml/CWLP265MB49702F7BA3D6D8F13E4B1A719C649@CWLP265MB4970.GBRP265.PROD.OUTLOOK.COM/T/
Link: https://lore.kernel.org/r/20230427012841.231729-1-yangjihong1@huawei.com
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
Signed-off-by: Sasha Levin <sashal@kernel.org>
2023-05-17 11:36:00 +02:00
Markus Elfring
78190a6ebe perf map: Delete two variable initialisations before null pointer checks in sort__sym_from_cmp()
[ Upstream commit c160118a90d4acf335993d8d59b02ae2147a524e ]

Addresses of two data structure members were determined before
corresponding null pointer checks in the implementation of the function
“sort__sym_from_cmp”.

Thus avoid the risk for undefined behaviour by removing extra
initialisations for the local variables “from_l” and “from_r” (also
because they were already reassigned with the same value behind this
pointer check).

This issue was detected by using the Coccinelle software.

Fixes: 1b9e97a2a95e4941 ("perf tools: Fix report -F symbol_from for data without branch info")
Signed-off-by: <elfring@users.sourceforge.net>
Acked-by: Ian Rogers <irogers@google.com>
Cc: Adrian Hunter <adrian.hunter@intel.com>
Cc: Alexander Shishkin <alexander.shishkin@linux.intel.com>
Cc: Andi Kleen <ak@linux.intel.com>
Cc: German Gomez <german.gomez@arm.com>
Cc: Ingo Molnar <mingo@redhat.com>
Cc: Jiri Olsa <jolsa@kernel.org>
Cc: Kan Liang <kan.liang@linux.intel.com>
Cc: Mark Rutland <mark.rutland@arm.com>
Cc: Namhyung Kim <namhyung@kernel.org>
Link: https://lore.kernel.org/cocci/54a21fea-64e3-de67-82ef-d61b90ffad05@web.de/
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
Signed-off-by: Sasha Levin <sashal@kernel.org>
2023-05-17 11:36:00 +02:00
Kajol Jain
ffec80cc67 perf vendor events power9: Remove UTF-8 characters from JSON files
[ Upstream commit 5d9df8731c0941f3add30f96745a62586a0c9d52 ]

Commit 3c22ba5243040c13 ("perf vendor events powerpc: Update POWER9
events") added and updated power9 PMU JSON events. However some of the
JSON events which are part of other.json and pipeline.json files,
contains UTF-8 characters in their brief description.  Having UTF-8
character could breaks the perf build on some distros.

Fix this issue by removing the UTF-8 characters from other.json and
pipeline.json files.

Result without the fix:

  [command]# file -i pmu-events/arch/powerpc/power9/*
  pmu-events/arch/powerpc/power9/cache.json:          application/json; charset=us-ascii
  pmu-events/arch/powerpc/power9/floating-point.json: application/json; charset=us-ascii
  pmu-events/arch/powerpc/power9/frontend.json:       application/json; charset=us-ascii
  pmu-events/arch/powerpc/power9/marked.json:         application/json; charset=us-ascii
  pmu-events/arch/powerpc/power9/memory.json:         application/json; charset=us-ascii
  pmu-events/arch/powerpc/power9/metrics.json:        application/json; charset=us-ascii
  pmu-events/arch/powerpc/power9/nest_metrics.json:   application/json; charset=us-ascii
  pmu-events/arch/powerpc/power9/other.json:          application/json; charset=utf-8
  pmu-events/arch/powerpc/power9/pipeline.json:       application/json; charset=utf-8
  pmu-events/arch/powerpc/power9/pmc.json:            application/json; charset=us-ascii
  pmu-events/arch/powerpc/power9/translation.json:    application/json; charset=us-ascii
  [command]#

Result with the fix:

  [command]# file -i pmu-events/arch/powerpc/power9/*
  pmu-events/arch/powerpc/power9/cache.json:          application/json; charset=us-ascii
  pmu-events/arch/powerpc/power9/floating-point.json: application/json; charset=us-ascii
  pmu-events/arch/powerpc/power9/frontend.json:       application/json; charset=us-ascii
  pmu-events/arch/powerpc/power9/marked.json:         application/json; charset=us-ascii
  pmu-events/arch/powerpc/power9/memory.json:         application/json; charset=us-ascii
  pmu-events/arch/powerpc/power9/metrics.json:        application/json; charset=us-ascii
  pmu-events/arch/powerpc/power9/nest_metrics.json:   application/json; charset=us-ascii
  pmu-events/arch/powerpc/power9/other.json:          application/json; charset=us-ascii
  pmu-events/arch/powerpc/power9/pipeline.json:       application/json; charset=us-ascii
  pmu-events/arch/powerpc/power9/pmc.json:            application/json; charset=us-ascii
  pmu-events/arch/powerpc/power9/translation.json:    application/json; charset=us-ascii
  [command]#

Fixes: 3c22ba5243040c13 ("perf vendor events powerpc: Update POWER9 events")
Reported-by: Arnaldo Carvalho de Melo <acme@kernel.com>
Signed-off-by: Kajol Jain <kjain@linux.ibm.com>
Acked-by: Ian Rogers <irogers@google.com>
Tested-by: Arnaldo Carvalho de Melo <acme@redhat.com>
Cc: Athira Rajeev <atrajeev@linux.vnet.ibm.com>
Cc: Disha Goel <disgoel@linux.ibm.com>
Cc: Jiri Olsa <jolsa@kernel.org>
Cc: Madhavan Srinivasan <maddy@linux.ibm.com>
Cc: Sukadev Bhattiprolu <sukadev@linux.vnet.ibm.com>
Cc: linuxppc-dev@lists.ozlabs.org
Link: https://lore.kernel.org/lkml/ZBxP77deq7ikTxwG@kernel.org/
Link: https://lore.kernel.org/r/20230328112908.113158-1-kjain@linux.ibm.com
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
Signed-off-by: Sasha Levin <sashal@kernel.org>
2023-05-17 11:36:00 +02:00
Wenliang Wang
62f1ebfe9a virtio_net: suppress cpu stall when free_unused_bufs
[ Upstream commit f8bb5104394560e29017c25bcade4c6b7aabd108 ]

For multi-queue and large ring-size use case, the following error
occurred when free_unused_bufs:
rcu: INFO: rcu_sched self-detected stall on CPU.

Fixes: 986a4f4d452d ("virtio_net: multiqueue support")
Signed-off-by: Wenliang Wang <wangwenliang.1995@bytedance.com>
Acked-by: Michael S. Tsirkin <mst@redhat.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Signed-off-by: Sasha Levin <sashal@kernel.org>
2023-05-17 11:36:00 +02:00
Xuan Zhuo
1dc5faf30a virtio_net: split free_unused_bufs()
[ Upstream commit 6e345f8c7cd029ad3aaece15ad4425ac26e4eb63 ]

This patch separates two functions for freeing sq buf and rq buf from
free_unused_bufs().

When supporting the enable/disable tx/rq queue in the future, it is
necessary to support separate recovery of a sq buf or a rq buf.

Signed-off-by: Xuan Zhuo <xuanzhuo@linux.alibaba.com>
Acked-by: Jason Wang <jasowang@redhat.com>
Message-Id: <20220801063902.129329-40-xuanzhuo@linux.alibaba.com>
Signed-off-by: Michael S. Tsirkin <mst@redhat.com>
Stable-dep-of: f8bb51043945 ("virtio_net: suppress cpu stall when free_unused_bufs")
Signed-off-by: Sasha Levin <sashal@kernel.org>
2023-05-17 11:35:59 +02:00
Arınç ÜNAL
b15637e717 net: dsa: mt7530: fix corrupt frames using trgmii on 40 MHz XTAL MT7621
[ Upstream commit 37c218d8021e36e226add4bab93d071d30fe0704 ]

The multi-chip module MT7530 switch with a 40 MHz oscillator on the
MT7621AT, MT7621DAT, and MT7621ST SoCs forwards corrupt frames using
trgmii.

This is caused by the assumption that MT7621 SoCs have got 150 MHz PLL,
hence using the ncpo1 value, 0x0780.

My testing shows this value works on Unielec U7621-06, Bartel's testing
shows it won't work on Hi-Link HLK-MT7621A and Netgear WAC104. All devices
tested have got 40 MHz oscillators.

Using the value for 125 MHz PLL, 0x0640, works on all boards at hand. The
definitions for 125 MHz PLL exist on the Banana Pi BPI-R2 BSP source code
whilst 150 MHz PLL don't.

Forwarding frames using trgmii on the MCM MT7530 switch with a 25 MHz
oscillator on the said MT7621 SoCs works fine because the ncpo1 value
defined for it is for 125 MHz PLL.

Change the 150 MHz PLL comment to 125 MHz PLL, and use the 125 MHz PLL
ncpo1 values for both oscillator frequencies.

Link: 81d24bbce7/u-boot-mt/drivers/net/rt2880_eth.c (L2195)
Fixes: 7ef6f6f8d237 ("net: dsa: mt7530: Add MT7621 TRGMII mode support")
Tested-by: Bartel Eerdekens <bartel.eerdekens@constell8.be>
Signed-off-by: Arınç ÜNAL <arinc.unal@arinc9.com>
Reviewed-by: Florian Fainelli <f.fainelli@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Signed-off-by: Sasha Levin <sashal@kernel.org>
2023-05-17 11:35:59 +02:00
Ruliang Lin
544b0de2d7 ALSA: caiaq: input: Add error handling for unsupported input methods in snd_usb_caiaq_input_init
[ Upstream commit 0d727e1856ef22dd9337199430258cb64cbbc658 ]

Smatch complains that:
snd_usb_caiaq_input_init() warn: missing error code 'ret'

This patch adds a new case to handle the situation where the
device does not support any input methods in the
`snd_usb_caiaq_input_init` function. It returns an `-EINVAL` error code
to indicate that no input methods are supported on the device.

Fixes: 523f1dce3743 ("[ALSA] Add Native Instrument usb audio device support")
Signed-off-by: Ruliang Lin <u202112092@hust.edu.cn>
Reviewed-by: Dongliang Mu <dzm91@hust.edu.cn>
Acked-by: Daniel Mack <daniel@zonque.org>
Link: https://lore.kernel.org/r/20230504065054.3309-1-u202112092@hust.edu.cn
Signed-off-by: Takashi Iwai <tiwai@suse.de>
Signed-off-by: Sasha Levin <sashal@kernel.org>
2023-05-17 11:35:59 +02:00
Chia-I Wu
35f2642f4a drm/amdgpu: add a missing lock for AMDGPU_SCHED
[ Upstream commit 2397e3d8d2e120355201a8310b61929f5a8bd2c0 ]

mgr->ctx_handles should be protected by mgr->lock.

v2: improve commit message
v3: add a Fixes tag

Signed-off-by: Chia-I Wu <olvaffe@gmail.com>
Reviewed-by: Christian König <christian.koenig@amd.com>
Fixes: 52c6a62c64fa ("drm/amdgpu: add interface for editing a foreign process's priority v3")
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
Signed-off-by: Sasha Levin <sashal@kernel.org>
2023-05-17 11:35:59 +02:00
Kuniyuki Iwashima
5cfe3f910f af_packet: Don't send zero-byte data in packet_sendmsg_spkt().
[ Upstream commit 6a341729fb31b4c5df9f74f24b4b1c98410c9b87 ]

syzkaller reported a warning below [0].

We can reproduce it by sending 0-byte data from the (AF_PACKET,
SOCK_PACKET) socket via some devices whose dev->hard_header_len
is 0.

    struct sockaddr_pkt addr = {
        .spkt_family = AF_PACKET,
        .spkt_device = "tun0",
    };
    int fd;

    fd = socket(AF_PACKET, SOCK_PACKET, 0);
    sendto(fd, NULL, 0, 0, (struct sockaddr *)&addr, sizeof(addr));

We have a similar fix for the (AF_PACKET, SOCK_RAW) socket as
commit dc633700f00f ("net/af_packet: check len when min_header_len
equals to 0").

Let's add the same test for the SOCK_PACKET socket.

[0]:
skb_assert_len
WARNING: CPU: 1 PID: 19945 at include/linux/skbuff.h:2552 skb_assert_len include/linux/skbuff.h:2552 [inline]
WARNING: CPU: 1 PID: 19945 at include/linux/skbuff.h:2552 __dev_queue_xmit+0x1f26/0x31d0 net/core/dev.c:4159
Modules linked in:
CPU: 1 PID: 19945 Comm: syz-executor.0 Not tainted 6.3.0-rc7-02330-gca6270c12e20 #1
Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS rel-1.16.0-0-gd239552ce722-prebuilt.qemu.org 04/01/2014
RIP: 0010:skb_assert_len include/linux/skbuff.h:2552 [inline]
RIP: 0010:__dev_queue_xmit+0x1f26/0x31d0 net/core/dev.c:4159
Code: 89 de e8 1d a2 85 fd 84 db 75 21 e8 64 a9 85 fd 48 c7 c6 80 2a 1f 86 48 c7 c7 c0 06 1f 86 c6 05 23 cf 27 04 01 e8 fa ee 56 fd <0f> 0b e8 43 a9 85 fd 0f b6 1d 0f cf 27 04 31 ff 89 de e8 e3 a1 85
RSP: 0018:ffff8880217af6e0 EFLAGS: 00010282
RAX: 0000000000000000 RBX: 0000000000000000 RCX: ffffc90001133000
RDX: 0000000000040000 RSI: ffffffff81186922 RDI: 0000000000000001
RBP: ffff8880217af8b0 R08: 0000000000000001 R09: 0000000000000000
R10: 0000000000000001 R11: 0000000000000001 R12: ffff888030045640
R13: ffff8880300456b0 R14: ffff888030045650 R15: ffff888030045718
FS:  00007fc5864da640(0000) GS:ffff88806cd00000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 0000000020005740 CR3: 000000003f856003 CR4: 0000000000770ee0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
PKRU: 55555554
Call Trace:
 <TASK>
 dev_queue_xmit include/linux/netdevice.h:3085 [inline]
 packet_sendmsg_spkt+0xc4b/0x1230 net/packet/af_packet.c:2066
 sock_sendmsg_nosec net/socket.c:724 [inline]
 sock_sendmsg+0x1b4/0x200 net/socket.c:747
 ____sys_sendmsg+0x331/0x970 net/socket.c:2503
 ___sys_sendmsg+0x11d/0x1c0 net/socket.c:2557
 __sys_sendmmsg+0x18c/0x430 net/socket.c:2643
 __do_sys_sendmmsg net/socket.c:2672 [inline]
 __se_sys_sendmmsg net/socket.c:2669 [inline]
 __x64_sys_sendmmsg+0x9c/0x100 net/socket.c:2669
 do_syscall_x64 arch/x86/entry/common.c:50 [inline]
 do_syscall_64+0x3c/0x90 arch/x86/entry/common.c:80
 entry_SYSCALL_64_after_hwframe+0x72/0xdc
RIP: 0033:0x7fc58791de5d
Code: ff c3 66 2e 0f 1f 84 00 00 00 00 00 90 f3 0f 1e fa 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 8b 0d 73 9f 1b 00 f7 d8 64 89 01 48
RSP: 002b:00007fc5864d9cc8 EFLAGS: 00000246 ORIG_RAX: 0000000000000133
RAX: ffffffffffffffda RBX: 00000000004bbf80 RCX: 00007fc58791de5d
RDX: 0000000000000001 RSI: 0000000020005740 RDI: 0000000000000004
RBP: 00000000004bbf80 R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000
R13: 000000000000000b R14: 00007fc58797e530 R15: 0000000000000000
 </TASK>
---[ end trace 0000000000000000 ]---
skb len=0 headroom=16 headlen=0 tailroom=304
mac=(16,0) net=(16,-1) trans=-1
shinfo(txflags=0 nr_frags=0 gso(size=0 type=0 segs=0))
csum(0x0 ip_summed=0 complete_sw=0 valid=0 level=0)
hash(0x0 sw=0 l4=0) proto=0x0000 pkttype=0 iif=0
dev name=sit0 feat=0x00000006401d7869
sk family=17 type=10 proto=0

Fixes: 1da177e4c3f4 ("Linux-2.6.12-rc2")
Reported-by: syzbot <syzkaller@googlegroups.com>
Signed-off-by: Kuniyuki Iwashima <kuniyu@amazon.com>
Reviewed-by: Willem de Bruijn <willemb@google.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Signed-off-by: Sasha Levin <sashal@kernel.org>
2023-05-17 11:35:59 +02:00
Shannon Nelson
fbcfa00386 ionic: remove noise from ethtool rxnfc error msg
[ Upstream commit 3711d44fac1f80ea69ecb7315fed05b3812a7401 ]

It seems that ethtool is calling into .get_rxnfc more often with
ETHTOOL_GRXCLSRLCNT which ionic doesn't know about.  We don't
need to log a message about it, just return not supported.

Fixes: aa3198819bea6 ("ionic: Add RSS support")
Signed-off-by: Shannon Nelson <shannon.nelson@amd.com>
Reviewed-by: Simon Horman <simon.horman@corigine.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Signed-off-by: Sasha Levin <sashal@kernel.org>
2023-05-17 11:35:59 +02:00
David Howells
4a56f1f6fe rxrpc: Fix hard call timeout units
[ Upstream commit 0d098d83c5d9e107b2df7f5e11f81492f56d2fe7 ]

The hard call timeout is specified in the RXRPC_SET_CALL_TIMEOUT cmsg in
seconds, so fix the point at which sendmsg() applies it to the call to
convert to jiffies from seconds, not milliseconds.

Fixes: a158bdd3247b ("rxrpc: Fix timeout of a call that hasn't yet been granted a channel")
Signed-off-by: David Howells <dhowells@redhat.com>
cc: Marc Dionne <marc.dionne@auristor.com>
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: netdev@vger.kernel.org
cc: linux-kernel@vger.kernel.org
Signed-off-by: David S. Miller <davem@davemloft.net>
Signed-off-by: Sasha Levin <sashal@kernel.org>
2023-05-17 11:35:59 +02:00
Victor Nogueira
dfa36eb380 net/sched: act_mirred: Add carrier check
[ Upstream commit 526f28bd0fbdc699cda31426928802650c1528e5 ]

There are cases where the device is adminstratively UP, but operationally
down. For example, we have a physical device (Nvidia ConnectX-6 Dx, 25Gbps)
who's cable was pulled out, here is its ip link output:

5: ens2f1: <NO-CARRIER,BROADCAST,MULTICAST,UP> mtu 1500 qdisc mq state DOWN mode DEFAULT group default qlen 1000
    link/ether b8:ce:f6:4b:68:35 brd ff:ff:ff:ff:ff:ff
    altname enp179s0f1np1

As you can see, it's administratively UP but operationally down.
In this case, sending a packet to this port caused a nasty kernel hang (so
nasty that we were unable to capture it). Aborting a transmit based on
operational status (in addition to administrative status) fixes the issue.

Fixes: 1da177e4c3f4 ("Linux-2.6.12-rc2")
Acked-by: Jamal Hadi Salim <jhs@mojatatu.com>
Signed-off-by: Victor Nogueira <victor@mojatatu.com>
v1->v2: Add fixes tag
v2->v3: Remove blank line between tags + add change log, suggested by Leon
Signed-off-by: David S. Miller <davem@davemloft.net>
Signed-off-by: Sasha Levin <sashal@kernel.org>
2023-05-17 11:35:59 +02:00
Maxim Korotkov
cc5ccfb7c0 writeback: fix call of incorrect macro
[ Upstream commit 3e46c89c74f2c38e5337d2cf44b0b551adff1cb4 ]

 the variable 'history' is of type u16, it may be an error
 that the hweight32 macro was used for it
 I guess macro hweight16 should be used

Found by Linux Verification Center (linuxtesting.org) with SVACE.

Fixes: 2a81490811d0 ("writeback: implement foreign cgroup inode detection")
Signed-off-by: Maxim Korotkov <korotkov.maxim.s@gmail.com>
Reviewed-by: Jan Kara <jack@suse.cz>
Link: https://lore.kernel.org/r/20230119104443.3002-1-korotkov.maxim.s@gmail.com
Signed-off-by: Jens Axboe <axboe@kernel.dk>
Signed-off-by: Sasha Levin <sashal@kernel.org>
2023-05-17 11:35:58 +02:00
Angelo Dureghello
9c1fcb97f9 net: dsa: mv88e6xxx: add mv88e6321 rsvd2cpu
[ Upstream commit 6686317855c6997671982d4489ccdd946f644957 ]

Add rsvd2cpu capability for mv88e6321 model, to allow proper bpdu
processing.

Signed-off-by: Angelo Dureghello <angelo.dureghello@timesys.com>
Fixes: 51c901a775621 ("net: dsa: mv88e6xxx: distinguish Global 2 Rsvd2CPU")
Reviewed-by: Andrew Lunn <andrew@lunn.ch>
Signed-off-by: David S. Miller <davem@davemloft.net>
Signed-off-by: Sasha Levin <sashal@kernel.org>
2023-05-17 11:35:58 +02:00
Cong Wang
e804124390 sit: update dev->needed_headroom in ipip6_tunnel_bind_dev()
[ Upstream commit c88f8d5cd95fd039cff95d682b8e71100c001df0 ]

When a tunnel device is bound with the underlying device, its
dev->needed_headroom needs to be updated properly. IPv4 tunnels
already do the same in ip_tunnel_bind_dev(). Otherwise we may
not have enough header room for skb, especially after commit
b17f709a2401 ("gue: TX support for using remote checksum offload option").

Fixes: 32b8a8e59c9c ("sit: add IPv4 over IPv4 support")
Reported-by: Palash Oswal <oswalpalash@gmail.com>
Link: https://lore.kernel.org/netdev/CAGyP=7fDcSPKu6nttbGwt7RXzE3uyYxLjCSE97J64pRxJP8jPA@mail.gmail.com/
Cc: Kuniyuki Iwashima <kuniyu@amazon.com>
Cc: Eric Dumazet <edumazet@google.com>
Signed-off-by: Cong Wang <cong.wang@bytedance.com>
Reviewed-by: Eric Dumazet <edumazet@google.com>
Reviewed-by: Kuniyuki Iwashima <kuniyu@amazon.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Signed-off-by: Sasha Levin <sashal@kernel.org>
2023-05-17 11:35:58 +02:00
Vlad Buslov
cc5fe387c6 net/sched: cls_api: remove block_cb from driver_list before freeing
[ Upstream commit da94a7781fc3c92e7df7832bc2746f4d39bc624e ]

Error handler of tcf_block_bind() frees the whole bo->cb_list on error.
However, by that time the flow_block_cb instances are already in the driver
list because driver ndo_setup_tc() callback is called before that up the
call chain in tcf_block_offload_cmd(). This leaves dangling pointers to
freed objects in the list and causes use-after-free[0]. Fix it by also
removing flow_block_cb instances from driver_list before deallocating them.

[0]:
[  279.868433] ==================================================================
[  279.869964] BUG: KASAN: slab-use-after-free in flow_block_cb_setup_simple+0x631/0x7c0
[  279.871527] Read of size 8 at addr ffff888147e2bf20 by task tc/2963

[  279.873151] CPU: 6 PID: 2963 Comm: tc Not tainted 6.3.0-rc6+ #4
[  279.874273] Hardware name: QEMU Standard PC (Q35 + ICH9, 2009), BIOS rel-1.13.0-0-gf21b5a4aeb02-prebuilt.qemu.org 04/01/2014
[  279.876295] Call Trace:
[  279.876882]  <TASK>
[  279.877413]  dump_stack_lvl+0x33/0x50
[  279.878198]  print_report+0xc2/0x610
[  279.878987]  ? flow_block_cb_setup_simple+0x631/0x7c0
[  279.879994]  kasan_report+0xae/0xe0
[  279.880750]  ? flow_block_cb_setup_simple+0x631/0x7c0
[  279.881744]  ? mlx5e_tc_reoffload_flows_work+0x240/0x240 [mlx5_core]
[  279.883047]  flow_block_cb_setup_simple+0x631/0x7c0
[  279.884027]  tcf_block_offload_cmd.isra.0+0x189/0x2d0
[  279.885037]  ? tcf_block_setup+0x6b0/0x6b0
[  279.885901]  ? mutex_lock+0x7d/0xd0
[  279.886669]  ? __mutex_unlock_slowpath.constprop.0+0x2d0/0x2d0
[  279.887844]  ? ingress_init+0x1c0/0x1c0 [sch_ingress]
[  279.888846]  tcf_block_get_ext+0x61c/0x1200
[  279.889711]  ingress_init+0x112/0x1c0 [sch_ingress]
[  279.890682]  ? clsact_init+0x2b0/0x2b0 [sch_ingress]
[  279.891701]  qdisc_create+0x401/0xea0
[  279.892485]  ? qdisc_tree_reduce_backlog+0x470/0x470
[  279.893473]  tc_modify_qdisc+0x6f7/0x16d0
[  279.894344]  ? tc_get_qdisc+0xac0/0xac0
[  279.895213]  ? mutex_lock+0x7d/0xd0
[  279.896005]  ? __mutex_lock_slowpath+0x10/0x10
[  279.896910]  rtnetlink_rcv_msg+0x5fe/0x9d0
[  279.897770]  ? rtnl_calcit.isra.0+0x2b0/0x2b0
[  279.898672]  ? __sys_sendmsg+0xb5/0x140
[  279.899494]  ? do_syscall_64+0x3d/0x90
[  279.900302]  ? entry_SYSCALL_64_after_hwframe+0x46/0xb0
[  279.901337]  ? kasan_save_stack+0x2e/0x40
[  279.902177]  ? kasan_save_stack+0x1e/0x40
[  279.903058]  ? kasan_set_track+0x21/0x30
[  279.903913]  ? kasan_save_free_info+0x2a/0x40
[  279.904836]  ? ____kasan_slab_free+0x11a/0x1b0
[  279.905741]  ? kmem_cache_free+0x179/0x400
[  279.906599]  netlink_rcv_skb+0x12c/0x360
[  279.907450]  ? rtnl_calcit.isra.0+0x2b0/0x2b0
[  279.908360]  ? netlink_ack+0x1550/0x1550
[  279.909192]  ? rhashtable_walk_peek+0x170/0x170
[  279.910135]  ? kmem_cache_alloc_node+0x1af/0x390
[  279.911086]  ? _copy_from_iter+0x3d6/0xc70
[  279.912031]  netlink_unicast+0x553/0x790
[  279.912864]  ? netlink_attachskb+0x6a0/0x6a0
[  279.913763]  ? netlink_recvmsg+0x416/0xb50
[  279.914627]  netlink_sendmsg+0x7a1/0xcb0
[  279.915473]  ? netlink_unicast+0x790/0x790
[  279.916334]  ? iovec_from_user.part.0+0x4d/0x220
[  279.917293]  ? netlink_unicast+0x790/0x790
[  279.918159]  sock_sendmsg+0xc5/0x190
[  279.918938]  ____sys_sendmsg+0x535/0x6b0
[  279.919813]  ? import_iovec+0x7/0x10
[  279.920601]  ? kernel_sendmsg+0x30/0x30
[  279.921423]  ? __copy_msghdr+0x3c0/0x3c0
[  279.922254]  ? import_iovec+0x7/0x10
[  279.923041]  ___sys_sendmsg+0xeb/0x170
[  279.923854]  ? copy_msghdr_from_user+0x110/0x110
[  279.924797]  ? ___sys_recvmsg+0xd9/0x130
[  279.925630]  ? __perf_event_task_sched_in+0x183/0x470
[  279.926656]  ? ___sys_sendmsg+0x170/0x170
[  279.927529]  ? ctx_sched_in+0x530/0x530
[  279.928369]  ? update_curr+0x283/0x4f0
[  279.929185]  ? perf_event_update_userpage+0x570/0x570
[  279.930201]  ? __fget_light+0x57/0x520
[  279.931023]  ? __switch_to+0x53d/0xe70
[  279.931846]  ? sockfd_lookup_light+0x1a/0x140
[  279.932761]  __sys_sendmsg+0xb5/0x140
[  279.933560]  ? __sys_sendmsg_sock+0x20/0x20
[  279.934436]  ? fpregs_assert_state_consistent+0x1d/0xa0
[  279.935490]  do_syscall_64+0x3d/0x90
[  279.936300]  entry_SYSCALL_64_after_hwframe+0x46/0xb0
[  279.937311] RIP: 0033:0x7f21c814f887
[  279.938085] Code: 0a 00 f7 d8 64 89 02 48 c7 c0 ff ff ff ff eb b9 0f 1f 00 f3 0f 1e fa 64 8b 04 25 18 00 00 00 85 c0 75 10 b8 2e 00 00 00 0f 05 <48> 3d 00 f0 ff ff 77 51 c3 48 83 ec 28 89 54 24 1c 48 89 74 24 10
[  279.941448] RSP: 002b:00007fff11efd478 EFLAGS: 00000246 ORIG_RAX: 000000000000002e
[  279.942964] RAX: ffffffffffffffda RBX: 0000000064401979 RCX: 00007f21c814f887
[  279.944337] RDX: 0000000000000000 RSI: 00007fff11efd4e0 RDI: 0000000000000003
[  279.945660] RBP: 0000000000000000 R08: 0000000000000001 R09: 0000000000000000
[  279.947003] R10: 00007f21c8008708 R11: 0000000000000246 R12: 0000000000000001
[  279.948345] R13: 0000000000409980 R14: 000000000047e538 R15: 0000000000485400
[  279.949690]  </TASK>

[  279.950706] Allocated by task 2960:
[  279.951471]  kasan_save_stack+0x1e/0x40
[  279.952338]  kasan_set_track+0x21/0x30
[  279.953165]  __kasan_kmalloc+0x77/0x90
[  279.954006]  flow_block_cb_setup_simple+0x3dd/0x7c0
[  279.955001]  tcf_block_offload_cmd.isra.0+0x189/0x2d0
[  279.956020]  tcf_block_get_ext+0x61c/0x1200
[  279.956881]  ingress_init+0x112/0x1c0 [sch_ingress]
[  279.957873]  qdisc_create+0x401/0xea0
[  279.958656]  tc_modify_qdisc+0x6f7/0x16d0
[  279.959506]  rtnetlink_rcv_msg+0x5fe/0x9d0
[  279.960392]  netlink_rcv_skb+0x12c/0x360
[  279.961216]  netlink_unicast+0x553/0x790
[  279.962044]  netlink_sendmsg+0x7a1/0xcb0
[  279.962906]  sock_sendmsg+0xc5/0x190
[  279.963702]  ____sys_sendmsg+0x535/0x6b0
[  279.964534]  ___sys_sendmsg+0xeb/0x170
[  279.965343]  __sys_sendmsg+0xb5/0x140
[  279.966132]  do_syscall_64+0x3d/0x90
[  279.966908]  entry_SYSCALL_64_after_hwframe+0x46/0xb0

[  279.968407] Freed by task 2960:
[  279.969114]  kasan_save_stack+0x1e/0x40
[  279.969929]  kasan_set_track+0x21/0x30
[  279.970729]  kasan_save_free_info+0x2a/0x40
[  279.971603]  ____kasan_slab_free+0x11a/0x1b0
[  279.972483]  __kmem_cache_free+0x14d/0x280
[  279.973337]  tcf_block_setup+0x29d/0x6b0
[  279.974173]  tcf_block_offload_cmd.isra.0+0x226/0x2d0
[  279.975186]  tcf_block_get_ext+0x61c/0x1200
[  279.976080]  ingress_init+0x112/0x1c0 [sch_ingress]
[  279.977065]  qdisc_create+0x401/0xea0
[  279.977857]  tc_modify_qdisc+0x6f7/0x16d0
[  279.978695]  rtnetlink_rcv_msg+0x5fe/0x9d0
[  279.979562]  netlink_rcv_skb+0x12c/0x360
[  279.980388]  netlink_unicast+0x553/0x790
[  279.981214]  netlink_sendmsg+0x7a1/0xcb0
[  279.982043]  sock_sendmsg+0xc5/0x190
[  279.982827]  ____sys_sendmsg+0x535/0x6b0
[  279.983703]  ___sys_sendmsg+0xeb/0x170
[  279.984510]  __sys_sendmsg+0xb5/0x140
[  279.985298]  do_syscall_64+0x3d/0x90
[  279.986076]  entry_SYSCALL_64_after_hwframe+0x46/0xb0

[  279.987532] The buggy address belongs to the object at ffff888147e2bf00
                which belongs to the cache kmalloc-192 of size 192
[  279.989747] The buggy address is located 32 bytes inside of
                freed 192-byte region [ffff888147e2bf00, ffff888147e2bfc0)

[  279.992367] The buggy address belongs to the physical page:
[  279.993430] page:00000000550f405c refcount:1 mapcount:0 mapping:0000000000000000 index:0x0 pfn:0x147e2a
[  279.995182] head:00000000550f405c order:1 entire_mapcount:0 nr_pages_mapped:0 pincount:0
[  279.996713] anon flags: 0x200000000010200(slab|head|node=0|zone=2)
[  279.997878] raw: 0200000000010200 ffff888100042a00 0000000000000000 dead000000000001
[  279.999384] raw: 0000000000000000 0000000000200020 00000001ffffffff 0000000000000000
[  280.000894] page dumped because: kasan: bad access detected

[  280.002386] Memory state around the buggy address:
[  280.003338]  ffff888147e2be00: fa fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb
[  280.004781]  ffff888147e2be80: fb fb fb fb fb fb fb fb fc fc fc fc fc fc fc fc
[  280.006224] >ffff888147e2bf00: fa fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb
[  280.007700]                                ^
[  280.008592]  ffff888147e2bf80: fb fb fb fb fb fb fb fb fc fc fc fc fc fc fc fc
[  280.010035]  ffff888147e2c000: fa fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb
[  280.011564] ==================================================================

Fixes: 59094b1e5094 ("net: sched: use flow block API")
Signed-off-by: Vlad Buslov <vladbu@nvidia.com>
Reviewed-by: Simon Horman <simon.horman@corigine.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Signed-off-by: Sasha Levin <sashal@kernel.org>
2023-05-17 11:35:58 +02:00
Cosmo Chou
8acd3a2887 net/ncsi: clear Tx enable mode when handling a Config required AEN
[ Upstream commit 6f75cd166a5a3c0bc50441faa8b8304f60522fdd ]

ncsi_channel_is_tx() determines whether a given channel should be
used for Tx or not. However, when reconfiguring the channel by
handling a Configuration Required AEN, there is a misjudgment that
the channel Tx has already been enabled, which results in the Enable
Channel Network Tx command not being sent.

Clear the channel Tx enable flag before reconfiguring the channel to
avoid the misjudgment.

Fixes: 8d951a75d022 ("net/ncsi: Configure multi-package, multi-channel modes with failover")
Signed-off-by: Cosmo Chou <chou.cosmo@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Signed-off-by: Sasha Levin <sashal@kernel.org>
2023-05-17 11:35:58 +02:00
Zhang Zhengming
bc0905a765 relayfs: fix out-of-bounds access in relay_file_read
[ Upstream commit 43ec16f1450f4936025a9bdf1a273affdb9732c1 ]

There is a crash in relay_file_read, as the var from
point to the end of last subbuf.

The oops looks something like:
pc : __arch_copy_to_user+0x180/0x310
lr : relay_file_read+0x20c/0x2c8
Call trace:
 __arch_copy_to_user+0x180/0x310
 full_proxy_read+0x68/0x98
 vfs_read+0xb0/0x1d0
 ksys_read+0x6c/0xf0
 __arm64_sys_read+0x20/0x28
 el0_svc_common.constprop.3+0x84/0x108
 do_el0_svc+0x74/0x90
 el0_svc+0x1c/0x28
 el0_sync_handler+0x88/0xb0
 el0_sync+0x148/0x180

We get the condition by analyzing the vmcore:

1). The last produced byte and last consumed byte
    both at the end of the last subbuf

2). A softirq calls function(e.g __blk_add_trace)
    to write relay buffer occurs when an program is calling
    relay_file_read_avail().

        relay_file_read
                relay_file_read_avail
                        relay_file_read_consume(buf, 0, 0);
                        //interrupted by softirq who will write subbuf
                        ....
                        return 1;
                //read_start point to the end of the last subbuf
                read_start = relay_file_read_start_pos
                //avail is equal to subsize
                avail = relay_file_read_subbuf_avail
                //from  points to an invalid memory address
                from = buf->start + read_start
                //system is crashed
                copy_to_user(buffer, from, avail)

Link: https://lkml.kernel.org/r/20230419040203.37676-1-zhang.zhengming@h3c.com
Fixes: 8d62fdebdaf9 ("relay file read: start-pos fix")
Signed-off-by: Zhang Zhengming <zhang.zhengming@h3c.com>
Reviewed-by: Zhao Lei <zhao_lei1@hoperun.com>
Reviewed-by: Zhou Kete <zhou.kete@h3c.com>
Reviewed-by: Pengcheng Yang <yangpc@wangsu.com>
Cc: Jens Axboe <axboe@kernel.dk>
Cc: <stable@vger.kernel.org>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Sasha Levin <sashal@kernel.org>
2023-05-17 11:35:58 +02:00
Pengcheng Yang
c038ae623a kernel/relay.c: fix read_pos error when multiple readers
[ Upstream commit 341a7213e5c1ce274cc0f02270054905800ea660 ]

When reading, read_pos should start with bytes_consumed, not file->f_pos.
Because when there is more than one reader, the read_pos corresponding to
file->f_pos may have been consumed, which will cause the data that has
been consumed to be read and the bytes_consumed update error.

Signed-off-by: Pengcheng Yang <yangpc@wangsu.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Reviewed-by: Jens Axboe <axboe@kernel.dk>
Cc: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Cc: Jann Horn <jannh@google.com>
Cc: Al Viro <viro@zeniv.linux.org.uk>e
Link: http://lkml.kernel.org/r/1579691175-28949-1-git-send-email-yangpc@wangsu.com
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Stable-dep-of: 43ec16f1450f ("relayfs: fix out-of-bounds access in relay_file_read")
Signed-off-by: Sasha Levin <sashal@kernel.org>
2023-05-17 11:35:58 +02:00
Jonathan McDowell
4f4de392f4 crypto: safexcel - Cleanup ring IRQ workqueues on load failure
[ Upstream commit ca25c00ccbc5f942c63897ed23584cfc66e8ec81 ]

A failure loading the safexcel driver results in the following warning
on boot, because the IRQ affinity has not been correctly cleaned up.
Ensure we clean up the affinity and workqueues on a failure to load the
driver.

crypto-safexcel: probe of f2800000.crypto failed with error -2
------------[ cut here ]------------
WARNING: CPU: 1 PID: 232 at kernel/irq/manage.c:1913 free_irq+0x300/0x340
Modules linked in: hwmon mdio_i2c crypto_safexcel(+) md5 sha256_generic libsha256 authenc libdes omap_rng rng_core nft_masq nft_nat nft_chain_nat nf_nat nft_ct nf_conntrack nf_defrag_ipv6 nf_defrag_ipv4 nf_tables libcrc32c nfnetlink fuse autofs4
CPU: 1 PID: 232 Comm: systemd-udevd Tainted: G        W          6.1.6-00002-g9d4898824677 #3
Hardware name: MikroTik RB5009 (DT)
pstate: 600000c5 (nZCv daIF -PAN -UAO -TCO -DIT -SSBS BTYPE=--)
pc : free_irq+0x300/0x340
lr : free_irq+0x2e0/0x340
sp : ffff800008fa3890
x29: ffff800008fa3890 x28: 0000000000000000 x27: 0000000000000000
x26: ffff8000008e6dc0 x25: ffff000009034cac x24: ffff000009034d50
x23: 0000000000000000 x22: 000000000000004a x21: ffff0000093e0d80
x20: ffff000009034c00 x19: ffff00000615fc00 x18: 0000000000000000
x17: 0000000000000000 x16: 0000000000000000 x15: 000075f5c1584c5e
x14: 0000000000000017 x13: 0000000000000000 x12: 0000000000000040
x11: ffff000000579b60 x10: ffff000000579b62 x9 : ffff800008bbe370
x8 : ffff000000579dd0 x7 : 0000000000000000 x6 : ffff000000579e18
x5 : ffff000000579da8 x4 : ffff800008ca0000 x3 : ffff800008ca0188
x2 : 0000000013033204 x1 : ffff000009034c00 x0 : ffff8000087eadf0
Call trace:
 free_irq+0x300/0x340
 devm_irq_release+0x14/0x20
 devres_release_all+0xa0/0x100
 device_unbind_cleanup+0x14/0x60
 really_probe+0x198/0x2d4
 __driver_probe_device+0x74/0xdc
 driver_probe_device+0x3c/0x110
 __driver_attach+0x8c/0x190
 bus_for_each_dev+0x6c/0xc0
 driver_attach+0x20/0x30
 bus_add_driver+0x148/0x1fc
 driver_register+0x74/0x120
 __platform_driver_register+0x24/0x30
 safexcel_init+0x48/0x1000 [crypto_safexcel]
 do_one_initcall+0x4c/0x1b0
 do_init_module+0x44/0x1cc
 load_module+0x1724/0x1be4
 __do_sys_finit_module+0xbc/0x110
 __arm64_sys_finit_module+0x1c/0x24
 invoke_syscall+0x44/0x110
 el0_svc_common.constprop.0+0xc0/0xe0
 do_el0_svc+0x20/0x80
 el0_svc+0x14/0x4c
 el0t_64_sync_handler+0xb0/0xb4
 el0t_64_sync+0x148/0x14c
---[ end trace 0000000000000000 ]---

Fixes: 1b44c5a60c13 ("inside-secure - add SafeXcel EIP197 crypto engine driver")
Signed-off-by: Jonathan McDowell <noodles@earth.li>
Cc: stable@vger.kernel.org
Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
Signed-off-by: Sasha Levin <sashal@kernel.org>
2023-05-17 11:35:58 +02:00
Sven Auhagen
b9878f485d crypto: inside-secure - irq balance
[ Upstream commit c6720415907f21b9c53efbe679b96c3cc9d06404 ]

Balance the irqs of the inside secure driver over all
available cpus.
Currently all interrupts are handled by the first CPU.

From my testing with IPSec AES-GCM 256
on my MCbin with 4 Cores I get a 50% speed increase:

Before the patch: 99.73 Kpps
With the patch: 151.25 Kpps

Signed-off-by: Sven Auhagen <sven.auhagen@voleatech.de>
Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
Stable-dep-of: ca25c00ccbc5 ("crypto: safexcel - Cleanup ring IRQ workqueues on load failure")
Signed-off-by: Sasha Levin <sashal@kernel.org>
2023-05-17 11:35:57 +02:00
Yeongjin Gil
439d3a7056 dm verity: fix error handling for check_at_most_once on FEC
[ Upstream commit e8c5d45f82ce0c238a4817739892fe8897a3dcc3 ]

In verity_end_io(), if bi_status is not BLK_STS_OK, it can be return
directly. But if FEC configured, it is desired to correct the data page
through verity_verify_io. And the return value will be converted to
blk_status and passed to verity_finish_io().

BTW, when a bit is set in v->validated_blocks, verity_verify_io() skips
verification regardless of I/O error for the corresponding bio. In this
case, the I/O error could not be returned properly, and as a result,
there is a problem that abnormal data could be read for the
corresponding block.

To fix this problem, when an I/O error occurs, do not skip verification
even if the bit related is set in v->validated_blocks.

Fixes: 843f38d382b1 ("dm verity: add 'check_at_most_once' option to only validate hashes once")
Cc: stable@vger.kernel.org
Reviewed-by: Sungjong Seo <sj1557.seo@samsung.com>
Signed-off-by: Yeongjin Gil <youngjin.gil@samsung.com>
Signed-off-by: Mike Snitzer <snitzer@kernel.org>
Signed-off-by: Sasha Levin <sashal@kernel.org>
2023-05-17 11:35:57 +02:00
Akilesh Kailash
0156f7dbd8 dm verity: skip redundant verity_handle_err() on I/O errors
[ Upstream commit 2c0468e054c0adb660ac055fc396622ec7235df9 ]

Without FEC, dm-verity won't call verity_handle_err() when I/O fails,
but with FEC enabled, it currently does even if an I/O error has
occurred.

If there is an I/O error and FEC correction fails, return the error
instead of calling verity_handle_err() again.

Suggested-by: Sami Tolvanen <samitolvanen@google.com>
Signed-off-by: Akilesh Kailash <akailash@google.com>
Reviewed-by: Sami Tolvanen <samitolvanen@google.com>
Signed-off-by: Mike Snitzer <snitzer@redhat.com>
Stable-dep-of: e8c5d45f82ce ("dm verity: fix error handling for check_at_most_once on FEC")
Signed-off-by: Sasha Levin <sashal@kernel.org>
2023-05-17 11:35:57 +02:00
Tanmay Shah
e4875d6e05 mailbox: zynqmp: Fix counts of child nodes
[ Upstream commit f72f805e72882c361e2a612c64a6e549f3da7152 ]

If child mailbox node status is disabled it causes
crash in interrupt handler. Fix this by assigning
only available child node during driver probe.

Fixes: 4981b82ba2ff ("mailbox: ZynqMP IPI mailbox controller")
Signed-off-by: Tanmay Shah <tanmay.shah@amd.com>
Acked-by: Michal Simek <michal.simek@amd.com>
Cc: stable@vger.kernel.org
Link: https://lore.kernel.org/r/20230311012407.1292118-2-tanmay.shah@amd.com
Signed-off-by: Mathieu Poirier <mathieu.poirier@linaro.org>
Signed-off-by: Sasha Levin <sashal@kernel.org>
2023-05-17 11:35:57 +02:00
Christophe JAILLET
ff0d64f512 mailbox: zynq: Switch to flexible array to simplify code
[ Upstream commit 043f85ce81cb1714e14d31c322c5646513dde3fb ]

Using flexible array is more straight forward. It
  - saves 1 pointer in the 'zynqmp_ipi_pdata' structure
  - saves an indirection when using this array
  - saves some LoC and avoids some always spurious pointer arithmetic

Signed-off-by: Christophe JAILLET <christophe.jaillet@wanadoo.fr>
Signed-off-by: Jassi Brar <jaswinder.singh@linaro.org>
Stable-dep-of: f72f805e7288 ("mailbox: zynqmp: Fix counts of child nodes")
Signed-off-by: Sasha Levin <sashal@kernel.org>
2023-05-17 11:35:57 +02:00
Joel Fernandes (Google)
352b152905 tick/nohz: Fix cpu_is_hotpluggable() by checking with nohz subsystem
[ Upstream commit 58d7668242647e661a20efe065519abd6454287e ]

For CONFIG_NO_HZ_FULL systems, the tick_do_timer_cpu cannot be offlined.
However, cpu_is_hotpluggable() still returns true for those CPUs. This causes
torture tests that do offlining to end up trying to offline this CPU causing
test failures. Such failure happens on all architectures.

Fix the repeated error messages thrown by this (even if the hotplug errors are
harmless) by asking the opinion of the nohz subsystem on whether the CPU can be
hotplugged.

[ Apply Frederic Weisbecker feedback on refactoring tick_nohz_cpu_down(). ]

For drivers/base/ portion:
Acked-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Acked-by: Frederic Weisbecker <frederic@kernel.org>
Cc: Frederic Weisbecker <frederic@kernel.org>
Cc: "Paul E. McKenney" <paulmck@kernel.org>
Cc: Zhouyi Zhou <zhouzhouyi@gmail.com>
Cc: Will Deacon <will@kernel.org>
Cc: Marc Zyngier <maz@kernel.org>
Cc: rcu <rcu@vger.kernel.org>
Cc: stable@vger.kernel.org
Fixes: 2987557f52b9 ("driver-core/cpu: Expose hotpluggability to the rest of the kernel")
Signed-off-by: Paul E. McKenney <paulmck@kernel.org>
Signed-off-by: Joel Fernandes (Google) <joel@joelfernandes.org>
Signed-off-by: Sasha Levin <sashal@kernel.org>
2023-05-17 11:35:57 +02:00
Frederic Weisbecker
9b2ed14431 nohz: Add TICK_DEP_BIT_RCU
[ Upstream commit 01b4c39901e087ceebae2733857248de81476bd8 ]

If a nohz_full CPU is looping in the kernel, the scheduling-clock tick
might nevertheless remain disabled.  In !PREEMPT kernels, this can
prevent RCU's attempts to enlist the aid of that CPU's executions of
cond_resched(), which can in turn result in an arbitrarily delayed grace
period and thus an OOM.  RCU therefore needs a way to enable a holdout
nohz_full CPU's scheduler-clock interrupt.

This commit therefore provides a new TICK_DEP_BIT_RCU value which RCU can
pass to tick_dep_set_cpu() and friends to force on the scheduler-clock
interrupt for a specified CPU or task.  In some cases, rcutorture needs
to turn on the scheduler-clock tick, so this commit also exports the
relevant symbols to GPL-licensed modules.

Signed-off-by: Frederic Weisbecker <frederic@kernel.org>
Signed-off-by: Paul E. McKenney <paulmck@kernel.org>
Stable-dep-of: 58d766824264 ("tick/nohz: Fix cpu_is_hotpluggable() by checking with nohz subsystem")
Signed-off-by: Sasha Levin <sashal@kernel.org>
2023-05-17 11:35:57 +02:00
Pablo Neira Ayuso
c8b6063f13 netfilter: nf_tables: deactivate anonymous set from preparation phase
commit c1592a89942e9678f7d9c8030efa777c0d57edab upstream.

Toggle deleted anonymous sets as inactive in the next generation, so
users cannot perform any update on it. Clear the generation bitmask
in case the transaction is aborted.

The following KASAN splat shows a set element deletion for a bound
anonymous set that has been already removed in the same transaction.

[   64.921510] ==================================================================
[   64.923123] BUG: KASAN: wild-memory-access in nf_tables_commit+0xa24/0x1490 [nf_tables]
[   64.924745] Write of size 8 at addr dead000000000122 by task test/890
[   64.927903] CPU: 3 PID: 890 Comm: test Not tainted 6.3.0+ #253
[   64.931120] Call Trace:
[   64.932699]  <TASK>
[   64.934292]  dump_stack_lvl+0x33/0x50
[   64.935908]  ? nf_tables_commit+0xa24/0x1490 [nf_tables]
[   64.937551]  kasan_report+0xda/0x120
[   64.939186]  ? nf_tables_commit+0xa24/0x1490 [nf_tables]
[   64.940814]  nf_tables_commit+0xa24/0x1490 [nf_tables]
[   64.942452]  ? __kasan_slab_alloc+0x2d/0x60
[   64.944070]  ? nf_tables_setelem_notify+0x190/0x190 [nf_tables]
[   64.945710]  ? kasan_set_track+0x21/0x30
[   64.947323]  nfnetlink_rcv_batch+0x709/0xd90 [nfnetlink]
[   64.948898]  ? nfnetlink_rcv_msg+0x480/0x480 [nfnetlink]

Signed-off-by: Pablo Neira Ayuso <pablo@netfilter.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2023-05-17 11:35:57 +02:00
Thomas Gleixner
29fb2a1a5f debugobject: Ensure pool refill (again)
commit 0af462f19e635ad522f28981238334620881badc upstream.

The recent fix to ensure atomicity of lookup and allocation inadvertently
broke the pool refill mechanism.

Prior to that change debug_objects_activate() and debug_objecs_assert_init()
invoked debug_objecs_init() to set up the tracking object for statically
initialized objects. That's not longer the case and debug_objecs_init() is
now the only place which does pool refills.

Depending on the number of statically initialized objects this can be
enough to actually deplete the pool, which was observed by Ido via a
debugobjects OOM warning.

Restore the old behaviour by adding explicit refill opportunities to
debug_objects_activate() and debug_objecs_assert_init().

Fixes: 63a759694eed ("debugobject: Prevent init race with static objects")
Reported-by: Ido Schimmel <idosch@nvidia.com>
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
Tested-by: Ido Schimmel <idosch@nvidia.com>
Link: https://lore.kernel.org/r/871qk05a9d.ffs@tglx
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2023-05-17 11:35:56 +02:00
Adrian Hunter
cef1b8a4df perf intel-pt: Fix CYC timestamps after standalone CBR
commit 430635a0ef1ce958b7b4311f172694ece2c692b8 upstream.

After a standalone CBR (not associated with TSC), update the cycles
reference timestamp and reset the cycle count, so that CYC timestamps
are calculated relative to that point with the new frequency.

Fixes: cc33618619cefc6d ("perf tools: Add Intel PT support for decoding CYC packets")
Signed-off-by: Adrian Hunter <adrian.hunter@intel.com>
Cc: Adrian Hunter <adrian.hunter@intel.com>
Cc: Ian Rogers <irogers@google.com>
Cc: Jiri Olsa <jolsa@kernel.org>
Cc: Namhyung Kim <namhyung@kernel.org>
Cc: stable@vger.kernel.org
Link: https://lore.kernel.org/r/20230403154831.8651-2-adrian.hunter@intel.com
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2023-05-17 11:35:56 +02:00
Adrian Hunter
5ead86d575 perf auxtrace: Fix address filter entire kernel size
commit 1f9f33ccf0320be21703d9195dd2b36a1c9a07cb upstream.

kallsyms is not completely in address order.

In find_entire_kern_cb(), calculate the kernel end from the maximum
address not the last symbol.

Example:

 Before:

    $ sudo cat /proc/kallsyms | grep ' [twTw] ' | tail -1
    ffffffffc00b8bd0 t bpf_prog_6deef7357e7b4530    [bpf]
    $ sudo cat /proc/kallsyms | grep ' [twTw] ' | sort | tail -1
    ffffffffc15e0cc0 t iwl_mvm_exit [iwlmvm]
    $ perf.d093603a05aa record -v --kcore -e intel_pt// --filter 'filter *' -- uname |& grep filter
    Address filter: filter 0xffffffff93200000/0x2ceba000

 After:

    $ perf.8fb0f7a01f8e record -v --kcore -e intel_pt// --filter 'filter *' -- uname |& grep filter
    Address filter: filter 0xffffffff93200000/0x2e3e2000

Fixes: 1b36c03e356936d6 ("perf record: Add support for using symbols in address filters")
Signed-off-by: Adrian Hunter <adrian.hunter@intel.com>
Cc: Adrian Hunter <adrian.hunter@intel.com>
Cc: Ian Rogers <irogers@google.com>
Cc: Jiri Olsa <jolsa@kernel.org>
Cc: Namhyung Kim <namhyung@kernel.org>
Cc: stable@vger.kernel.org
Link: https://lore.kernel.org/r/20230403154831.8651-2-adrian.hunter@intel.com
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2023-05-17 11:35:56 +02:00
Mike Snitzer
29a1ef57c3 dm ioctl: fix nested locking in table_clear() to remove deadlock concern
commit 3d32aaa7e66d5c1479a3c31d6c2c5d45dd0d3b89 upstream.

syzkaller found the following problematic rwsem locking (with write
lock already held):

 down_read+0x9d/0x450 kernel/locking/rwsem.c:1509
 dm_get_inactive_table+0x2b/0xc0 drivers/md/dm-ioctl.c:773
 __dev_status+0x4fd/0x7c0 drivers/md/dm-ioctl.c:844
 table_clear+0x197/0x280 drivers/md/dm-ioctl.c:1537

In table_clear, it first acquires a write lock
https://elixir.bootlin.com/linux/v6.2/source/drivers/md/dm-ioctl.c#L1520
down_write(&_hash_lock);

Then before the lock is released at L1539, there is a path shown above:
table_clear -> __dev_status -> dm_get_inactive_table ->  down_read
https://elixir.bootlin.com/linux/v6.2/source/drivers/md/dm-ioctl.c#L773
down_read(&_hash_lock);

It tries to acquire the same read lock again, resulting in the deadlock
problem.

Fix this by moving table_clear()'s __dev_status() call to after its
up_write(&_hash_lock);

Cc: stable@vger.kernel.org
Reported-by: Zheng Zhang <zheng.zhang@email.ucr.edu>
Signed-off-by: Mike Snitzer <snitzer@kernel.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2023-05-17 11:35:56 +02:00
Mikulas Patocka
337b7af273 dm flakey: fix a crash with invalid table line
commit 98dba02d9a93eec11bffbb93c7c51624290702d2 upstream.

This command will crash with NULL pointer dereference:
 dmsetup create flakey --table \
  "0 `blockdev --getsize /dev/ram0` flakey /dev/ram0 0 0 1 2 corrupt_bio_byte 512"

Fix the crash by checking if arg_name is non-NULL before comparing it.

Cc: stable@vger.kernel.org
Signed-off-by: Mikulas Patocka <mpatocka@redhat.com>
Signed-off-by: Mike Snitzer <snitzer@kernel.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2023-05-17 11:35:56 +02:00
Mike Snitzer
6d126899b0 dm integrity: call kmem_cache_destroy() in dm_integrity_init() error path
commit 6b79a428c02769f2a11f8ae76bf866226d134887 upstream.

Otherwise the journal_io_cache will leak if dm_register_target() fails.

Cc: stable@vger.kernel.org
Signed-off-by: Mike Snitzer <snitzer@kernel.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2023-05-17 11:35:56 +02:00
Mike Snitzer
cbe0a7ec67 dm clone: call kmem_cache_destroy() in dm_clone_init() error path
commit 6827af4a9a9f5bb664c42abf7c11af4978d72201 upstream.

Otherwise the _hydration_cache will leak if dm_register_target() fails.

Cc: stable@vger.kernel.org
Signed-off-by: Mike Snitzer <snitzer@kernel.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2023-05-17 11:35:56 +02:00
Stefan Haberland
d8f66a19f8 s390/dasd: fix hanging blockdevice after request requeue
commit d8898ee50edecacdf0141f26fd90acf43d7e9cd7 upstream.

The DASD driver does not kick the requeue list when requeuing IO requests
to the blocklayer. This might lead to hanging blockdevice when there is
no other trigger for this.

Fix by automatically kick the requeue list when requeuing DASD requests
to the blocklayer.

Fixes: e443343e509a ("s390/dasd: blk-mq conversion")
CC: stable@vger.kernel.org # 4.14+
Signed-off-by: Stefan Haberland <sth@linux.ibm.com>
Reviewed-by: Jan Hoeppner <hoeppner@linux.ibm.com>
Reviewed-by: Halil Pasic <pasic@linux.ibm.com>
Link: https://lore.kernel.org/r/20230405142017.2446986-8-sth@linux.ibm.com
Signed-off-by: Jens Axboe <axboe@kernel.dk>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2023-05-17 11:35:56 +02:00
Qu Wenruo
5492d40812 btrfs: scrub: reject unsupported scrub flags
commit 604e6681e114d05a2e384c4d1e8ef81918037ef5 upstream.

Since the introduction of scrub interface, the only flag that we support
is BTRFS_SCRUB_READONLY.  Thus there is no sanity checks, if there are
some undefined flags passed in, we just ignore them.

This is problematic if we want to introduce new scrub flags, as we have
no way to determine if such flags are supported.

Address the problem by introducing a check for the flags, and if
unsupported flags are set, return -EOPNOTSUPP to inform the user space.

This check should be backported for all supported kernels before any new
scrub flags are introduced.

CC: stable@vger.kernel.org # 4.14+
Reviewed-by: Anand Jain <anand.jain@oracle.com>
Signed-off-by: Qu Wenruo <wqu@suse.com>
Reviewed-by: David Sterba <dsterba@suse.com>
Signed-off-by: David Sterba <dsterba@suse.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2023-05-17 11:35:55 +02:00
Peng Liu
946e067b4c scripts/gdb: fix lx-timerlist for Python3
commit 7362042f3556528e9e9b1eb5ce8d7a3a6331476b upstream.

Below incompatibilities between Python2 and Python3 made lx-timerlist fail
to run under Python3.

o xrange() is replaced by range() in Python3
o bytes and str are different types in Python3
o the return value of Inferior.read_memory() is memoryview object in
  Python3

akpm: cc stable so that older kernels are properly debuggable under newer
Python.

Link: https://lkml.kernel.org/r/TYCP286MB2146EE1180A4D5176CBA8AB2C6819@TYCP286MB2146.JPNP286.PROD.OUTLOOK.COM
Signed-off-by: Peng Liu <liupeng17@lenovo.com>
Reviewed-by: Jan Kiszka <jan.kiszka@siemens.com>
Cc: Florian Fainelli <f.fainelli@gmail.com>
Cc: Kieran Bingham <kbingham@kernel.org>
Cc: <stable@vger.kernel.org>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2023-05-17 11:35:55 +02:00
Quentin Schulz
7cf5ce2857 clk: rockchip: rk3399: allow clk_cifout to force clk_cifout_src to reparent
commit 933bf364e152cd60902cf9585c2ba310d593e69f upstream.

clk_cifout is derived from clk_cifout_src through an integer divider
limited to 32. clk_cifout_src is a child of either cpll, gpll or npll
without any possibility of a divider of any sort. The default clock
parent is cpll.

Let's allow clk_cifout to ask its parent clk_cifout_src to reparent in
order to find the real closest possible rate for clk_cifout and not one
derived from cpll only.

Cc: stable@vger.kernel.org # 4.10+
Fixes: fd8bc829336a ("clk: rockchip: fix the rk3399 cifout clock")
Signed-off-by: Quentin Schulz <quentin.schulz@theobroma-systems.com>
Link: https://lore.kernel.org/r/20221117-rk3399-cifout-set-rate-parent-v1-0-432548d04081@theobroma-systems.com
Signed-off-by: Heiko Stuebner <heiko@sntech.de>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2023-05-17 11:35:55 +02:00
Bitterblue Smith
4379d5ce92 wifi: rtl8xxxu: RTL8192EU always needs full init
commit d46e04ccd40457a0119b76e11ab64a2ad403e138 upstream.

Always run the entire init sequence (rtl8xxxu_init_device()) for
RTL8192EU. It's what the vendor driver does too.

This fixes a bug where the device is unable to connect after
rebooting:

wlp3s0f3u2: send auth to ... (try 1/3)
wlp3s0f3u2: send auth to ... (try 2/3)
wlp3s0f3u2: send auth to ... (try 3/3)
wlp3s0f3u2: authentication with ... timed out

Rebooting leaves the device powered on (partially? at least the
firmware is still running), but not really in a working state.

Cc: stable@vger.kernel.org
Signed-off-by: Bitterblue Smith <rtl8821cerfe2@gmail.com>
Acked-by: Jes Sorensen <jes@trained-monkey.org>
Signed-off-by: Kalle Valo <kvalo@kernel.org>
Link: https://lore.kernel.org/r/4eb111a9-d4c4-37d0-b376-4e202de7153c@gmail.com
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2023-05-17 11:35:55 +02:00
Tanmay Shah
ecdcefd312 mailbox: zynqmp: Fix typo in IPI documentation
commit 79963fbfc233759bd8a43462f120d15a1bd4f4fa upstream.

Xilinx IPI message buffers allows 32-byte data transfer.
Fix documentation that says 12 bytes

Fixes: 4981b82ba2ff ("mailbox: ZynqMP IPI mailbox controller")
Signed-off-by: Tanmay Shah <tanmay.shah@amd.com>
Acked-by: Michal Simek <michal.simek@amd.com>
Cc: stable@vger.kernel.org
Link: https://lore.kernel.org/r/20230311012407.1292118-4-tanmay.shah@amd.com
Signed-off-by: Mathieu Poirier <mathieu.poirier@linaro.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2023-05-17 11:35:55 +02:00
Tanmay Shah
38afc633d3 mailbox: zynqmp: Fix IPI isr handling
commit 74ad37a30ffee3643bc34f9ca7225b20a66abaaf upstream.

Multiple IPI channels are mapped to same interrupt handler.
Current isr implementation handles only one channel per isr.
Fix this behavior by checking isr status bit of all child
mailbox nodes.

Fixes: 4981b82ba2ff ("mailbox: ZynqMP IPI mailbox controller")
Signed-off-by: Tanmay Shah <tanmay.shah@amd.com>
Acked-by: Michal Simek <michal.simek@amd.com>
Cc: stable@vger.kernel.org
Link: https://lore.kernel.org/r/20230311012407.1292118-3-tanmay.shah@amd.com
Signed-off-by: Mathieu Poirier <mathieu.poirier@linaro.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2023-05-17 11:35:55 +02:00
Li Nan
14964127be md/raid10: fix null-ptr-deref in raid10_sync_request
commit a405c6f0229526160aa3f177f65e20c86fce84c5 upstream.

init_resync() inits mempool and sets conf->have_replacemnt at the beginning
of sync, close_sync() frees the mempool when sync is completed.

After [1] recovery might be skipped and init_resync() is called but
close_sync() is not. null-ptr-deref occurs with r10bio->dev[i].repl_bio.

The following is one way to reproduce the issue.

  1) create a array, wait for resync to complete, mddev->recovery_cp is set
     to MaxSector.
  2) recovery is woken and it is skipped. conf->have_replacement is set to
     0 in init_resync(). close_sync() not called.
  3) some io errors and rdev A is set to WantReplacement.
  4) a new device is added and set to A's replacement.
  5) recovery is woken, A have replacement, but conf->have_replacemnt is
     0. r10bio->dev[i].repl_bio will not be alloced and null-ptr-deref
     occurs.

Fix it by not calling init_resync() if recovery skipped.

[1] commit 7e83ccbecd60 ("md/raid10: Allow skipping recovery when clean arrays are assembled")
Fixes: 7e83ccbecd60 ("md/raid10: Allow skipping recovery when clean arrays are assembled")
Cc: stable@vger.kernel.org
Signed-off-by: Li Nan <linan122@huawei.com>
Signed-off-by: Song Liu <song@kernel.org>
Link: https://lore.kernel.org/r/20230222041000.3341651-3-linan666@huaweicloud.com
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2023-05-17 11:35:55 +02:00
Ryusuke Konishi
fe1cbbcb1a nilfs2: fix infinite loop in nilfs_mdt_get_block()
commit a6a491c048882e7e424d407d32cba0b52d9ef2bf upstream.

If the disk image that nilfs2 mounts is corrupted and a virtual block
address obtained by block lookup for a metadata file is invalid,
nilfs_bmap_lookup_at_level() may return the same internal return code as
-ENOENT, meaning the block does not exist in the metadata file.

This duplication of return codes confuses nilfs_mdt_get_block(), causing
it to read and create a metadata block indefinitely.

In particular, if this happens to the inode metadata file, ifile,
semaphore i_rwsem can be left held, causing task hangs in lock_mount.

Fix this issue by making nilfs_bmap_lookup_at_level() treat virtual block
address translation failures with -ENOENT as metadata corruption instead
of returning the error code.

Link: https://lkml.kernel.org/r/20230430193046.6769-1-konishi.ryusuke@gmail.com
Signed-off-by: Ryusuke Konishi <konishi.ryusuke@gmail.com>
Tested-by: Ryusuke Konishi <konishi.ryusuke@gmail.com>
Reported-by: syzbot+221d75710bde87fa0e97@syzkaller.appspotmail.com
  Link: https://syzkaller.appspot.com/bug?extid=221d75710bde87fa0e97
Cc: <stable@vger.kernel.org>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2023-05-17 11:35:54 +02:00
Ryusuke Konishi
4569a292a8 nilfs2: do not write dirty data after degenerating to read-only
commit 28a65b49eb53e172d23567005465019658bfdb4d upstream.

According to syzbot's report, mark_buffer_dirty() called from
nilfs_segctor_do_construct() outputs a warning with some patterns after
nilfs2 detects metadata corruption and degrades to read-only mode.

After such read-only degeneration, page cache data may be cleared through
nilfs_clear_dirty_page() which may also clear the uptodate flag for their
buffer heads.  However, even after the degeneration, log writes are still
performed by unmount processing etc., which causes mark_buffer_dirty() to
be called for buffer heads without the "uptodate" flag and causes the
warning.

Since any writes should not be done to a read-only file system in the
first place, this fixes the warning in mark_buffer_dirty() by letting
nilfs_segctor_do_construct() abort early if in read-only mode.

This also changes the retry check of nilfs_segctor_write_out() to avoid
unnecessary log write retries if it detects -EROFS that
nilfs_segctor_do_construct() returned.

Link: https://lkml.kernel.org/r/20230427011526.13457-1-konishi.ryusuke@gmail.com
Signed-off-by: Ryusuke Konishi <konishi.ryusuke@gmail.com>
Tested-by: Ryusuke Konishi <konishi.ryusuke@gmail.com>
Reported-by: syzbot+2af3bc9585be7f23f290@syzkaller.appspotmail.com
  Link: https://syzkaller.appspot.com/bug?extid=2af3bc9585be7f23f290
Cc: <stable@vger.kernel.org>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2023-05-17 11:35:54 +02:00