| CVE |
Vendors |
Products |
Updated |
CVSS v3.1 |
| In the Linux kernel, the following vulnerability has been resolved:
remoteproc: imx_dsp_rproc: Add mutex protection for workqueue
The workqueue may execute late even after remoteproc is stopped or
stopping, some resources (rpmsg device and endpoint) have been
released in rproc_stop_subdevices(), then rproc_vq_interrupt()
accessing these resources will cause kennel dump.
Call trace:
virtqueue_add_split+0x1ac/0x560
virtqueue_add_inbuf+0x4c/0x60
rpmsg_recv_done+0x15c/0x294
vring_interrupt+0x6c/0xa4
rproc_vq_interrupt+0x30/0x50
imx_dsp_rproc_vq_work+0x24/0x40 [imx_dsp_rproc]
process_one_work+0x1d0/0x354
worker_thread+0x13c/0x470
kthread+0x154/0x160
ret_from_fork+0x10/0x20
Add mutex protection in imx_dsp_rproc_vq_work(), if the state is
not running, then just skip calling rproc_vq_interrupt().
Also the flush workqueue operation can't be added in rproc stop
for the same reason. The call sequence is
rproc_shutdown
-> rproc_stop
->rproc_stop_subdevices
->rproc->ops->stop()
->imx_dsp_rproc_stop
->flush_work
-> rproc_vq_interrupt
The resource needed by rproc_vq_interrupt has been released in
rproc_stop_subdevices, so flush_work is not safe to be called in
imx_dsp_rproc_stop. |
| In the Linux kernel, the following vulnerability has been resolved:
net/mlx5: Lag, fix failure to cancel delayed bond work
Commit 0d4e8ed139d8 ("net/mlx5: Lag, avoid lockdep warnings")
accidentally removed a call to cancel delayed bond work thus it may
cause queued delay to expire and fall on an already destroyed work
queue.
Fix by restoring the call cancel_delayed_work_sync() before
destroying the workqueue.
This prevents call trace such as this:
[ 329.230417] BUG: kernel NULL pointer dereference, address: 0000000000000000
[ 329.231444] #PF: supervisor write access in kernel mode
[ 329.232233] #PF: error_code(0x0002) - not-present page
[ 329.233007] PGD 0 P4D 0
[ 329.233476] Oops: 0002 [#1] SMP
[ 329.234012] CPU: 5 PID: 145 Comm: kworker/u20:4 Tainted: G OE 6.0.0-rc5_mlnx #1
[ 329.235282] Hardware name: QEMU Standard PC (Q35 + ICH9, 2009), BIOS rel-1.13.0-0-gf21b5a4aeb02-prebuilt.qemu.org 04/01/2014
[ 329.236868] Workqueue: mlx5_cmd_0000:08:00.1 cmd_work_handler [mlx5_core]
[ 329.237886] RIP: 0010:_raw_spin_lock+0xc/0x20
[ 329.238585] Code: f0 0f b1 17 75 02 f3 c3 89 c6 e9 6f 3c 5f ff 66 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 40 00 0f 1f 44 00 00 31 c0 ba 01 00 00 00 <f0> 0f b1 17 75 02 f3 c3 89 c6 e9 45 3c 5f ff 0f 1f 44 00 00 0f 1f
[ 329.241156] RSP: 0018:ffffc900001b0e98 EFLAGS: 00010046
[ 329.241940] RAX: 0000000000000000 RBX: ffffffff82374ae0 RCX: 0000000000000000
[ 329.242954] RDX: 0000000000000001 RSI: 0000000000000014 RDI: 0000000000000000
[ 329.243974] RBP: ffff888106ccf000 R08: ffff8881004000c8 R09: ffff888100400000
[ 329.244990] R10: 0000000000000000 R11: ffffffff826669f8 R12: 0000000000002000
[ 329.246009] R13: 0000000000000005 R14: ffff888100aa7ce0 R15: ffff88852ca80000
[ 329.247030] FS: 0000000000000000(0000) GS:ffff88852ca80000(0000) knlGS:0000000000000000
[ 329.248260] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[ 329.249111] CR2: 0000000000000000 CR3: 000000016d675001 CR4: 0000000000770ee0
[ 329.250133] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
[ 329.251152] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
[ 329.252176] PKRU: 55555554 |
| In the Linux kernel, the following vulnerability has been resolved:
drm/amdkfd: Fix UBSAN shift-out-of-bounds warning
If get_num_sdma_queues or get_num_xgmi_sdma_queues is 0, we end up
doing a shift operation where the number of bits shifted equals
number of bits in the operand. This behaviour is undefined.
Set num_sdma_queues or num_xgmi_sdma_queues to ULLONG_MAX, if the
count is >= number of bits in the operand.
Bug: https://gitlab.freedesktop.org/drm/amd/-/issues/1472 |
| In the Linux kernel, the following vulnerability has been resolved:
drm/amd/display: remove oem i2c adapter on finish
Fixes a bug where unbinding of the GPU would leave the oem i2c adapter
registered resulting in a null pointer dereference when applications try
to access the invalid device.
(cherry picked from commit 89923fb7ead4fdd37b78dd49962d9bb5892403e6) |
| In the Linux kernel, the following vulnerability has been resolved:
scsi: iscsi: iscsi_tcp: Fix null-ptr-deref while calling getpeername()
Fix a NULL pointer crash that occurs when we are freeing the socket at the
same time we access it via sysfs.
The problem is that:
1. iscsi_sw_tcp_conn_get_param() and iscsi_sw_tcp_host_get_param() take
the frwd_lock and do sock_hold() then drop the frwd_lock. sock_hold()
does a get on the "struct sock".
2. iscsi_sw_tcp_release_conn() does sockfd_put() which does the last put
on the "struct socket" and that does __sock_release() which sets the
sock->ops to NULL.
3. iscsi_sw_tcp_conn_get_param() and iscsi_sw_tcp_host_get_param() then
call kernel_getpeername() which accesses the NULL sock->ops.
Above we do a get on the "struct sock", but we needed a get on the "struct
socket". Originally, we just held the frwd_lock the entire time but in
commit bcf3a2953d36 ("scsi: iscsi: iscsi_tcp: Avoid holding spinlock while
calling getpeername()") we switched to refcount based because the network
layer changed and started taking a mutex in that path, so we could no
longer hold the frwd_lock.
Instead of trying to maintain multiple refcounts, this just has us use a
mutex for accessing the socket in the interface code paths. |
| In the Linux kernel, the following vulnerability has been resolved:
drm/amd/display: Fix potential null dereference
The adev->dm.dc pointer can be NULL and dereferenced in amdgpu_dm_fini()
without checking.
Add a NULL pointer check before calling dc_dmub_srv_destroy().
Found by Linux Verification Center (linuxtesting.org) with SVACE. |
| In the Linux kernel, the following vulnerability has been resolved:
mm/vmalloc, mm/kasan: respect gfp mask in kasan_populate_vmalloc()
kasan_populate_vmalloc() and its helpers ignore the caller's gfp_mask and
always allocate memory using the hardcoded GFP_KERNEL flag. This makes
them inconsistent with vmalloc(), which was recently extended to support
GFP_NOFS and GFP_NOIO allocations.
Page table allocations performed during shadow population also ignore the
external gfp_mask. To preserve the intended semantics of GFP_NOFS and
GFP_NOIO, wrap the apply_to_page_range() calls into the appropriate
memalloc scope.
xfs calls vmalloc with GFP_NOFS, so this bug could lead to deadlock.
There was a report here
https://lkml.kernel.org/r/686ea951.050a0220.385921.0016.GAE@google.com
This patch:
- Extends kasan_populate_vmalloc() and helpers to take gfp_mask;
- Passes gfp_mask down to alloc_pages_bulk() and __get_free_page();
- Enforces GFP_NOFS/NOIO semantics with memalloc_*_save()/restore()
around apply_to_page_range();
- Updates vmalloc.c and percpu allocator call sites accordingly. |
| In the Linux kernel, the following vulnerability has been resolved:
IB/hfi1: Fix possible panic during hotplug remove
During hotplug remove it is possible that the update counters work
might be pending, and may run after memory has been freed.
Cancel the update counters work before freeing memory. |
| In the Linux kernel, the following vulnerability has been resolved:
MIPS: vpe-mt: fix possible memory leak while module exiting
Afer commit 1fa5ae857bb1 ("driver core: get rid of struct device's
bus_id string array"), the name of device is allocated dynamically,
it need be freed when module exiting, call put_device() to give up
reference, so that it can be freed in kobject_cleanup() when the
refcount hit to 0. The vpe_device is static, so remove kfree() from
vpe_device_release(). |
| In the Linux kernel, the following vulnerability has been resolved:
start_kernel: Add __no_stack_protector function attribute
Back during the discussion of
commit a9a3ed1eff36 ("x86: Fix early boot crash on gcc-10, third try")
we discussed the need for a function attribute to control the omission
of stack protectors on a per-function basis; at the time Clang had
support for no_stack_protector but GCC did not. This was fixed in
gcc-11. Now that the function attribute is available, let's start using
it.
Callers of boot_init_stack_canary need to use this function attribute
unless they're compiled with -fno-stack-protector, otherwise the canary
stored in the stack slot of the caller will differ upon the call to
boot_init_stack_canary. This will lead to a call to __stack_chk_fail()
then panic. |
| In the Linux kernel, the following vulnerability has been resolved:
wifi: mt76: fix linked list corruption
Never leave scheduled wcid entries on the temporary on-stack list |
| In the Linux kernel, the following vulnerability has been resolved:
fbdev: imxfb: Removed unneeded release_mem_region
Remove unnecessary release_mem_region from the error path to prevent
mem region from being released twice, which could avoid resource leak
or other unexpected issues. |
| In the Linux kernel, the following vulnerability has been resolved:
iw_cxgb4: Fix potential NULL dereference in c4iw_fill_res_cm_id_entry()
This condition needs to match the previous "if (epcp->state == LISTEN) {"
exactly to avoid a NULL dereference of either "listen_ep" or "ep". The
problem is that "epcp" has been re-assigned so just testing
"if (epcp->state == LISTEN) {" a second time is not sufficient. |
| In the Linux kernel, the following vulnerability has been resolved:
ASoC: mediatek: mt8173: Enable IRQ when pdata is ready
If the device does not come straight from reset, we might receive an IRQ
before we are ready to handle it.
[ 2.334737] Unable to handle kernel read from unreadable memory at virtual address 00000000000001e4
[ 2.522601] Call trace:
[ 2.525040] regmap_read+0x1c/0x80
[ 2.528434] mt8173_afe_irq_handler+0x40/0xf0
...
[ 2.598921] start_kernel+0x338/0x42c |
| In the Linux kernel, the following vulnerability has been resolved:
drm/radeon: free iio for atombios when driver shutdown
Fix below kmemleak when unload radeon driver:
unreferenced object 0xffff9f8608ede200 (size 512):
comm "systemd-udevd", pid 326, jiffies 4294682822 (age 716.338s)
hex dump (first 32 bytes):
00 00 00 00 c4 aa ec aa 14 ab 00 00 00 00 00 00 ................
00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 ................
backtrace:
[<0000000062fadebe>] kmem_cache_alloc_trace+0x2f1/0x500
[<00000000b6883cea>] atom_parse+0x117/0x230 [radeon]
[<00000000158c23fd>] radeon_atombios_init+0xab/0x170 [radeon]
[<00000000683f672e>] si_init+0x57/0x750 [radeon]
[<00000000566cc31f>] radeon_device_init+0x559/0x9c0 [radeon]
[<0000000046efabb3>] radeon_driver_load_kms+0xc1/0x1a0 [radeon]
[<00000000b5155064>] drm_dev_register+0xdd/0x1d0
[<0000000045fec835>] radeon_pci_probe+0xbd/0x100 [radeon]
[<00000000e69ecca3>] pci_device_probe+0xe1/0x160
[<0000000019484b76>] really_probe.part.0+0xc1/0x2c0
[<000000003f2649da>] __driver_probe_device+0x96/0x130
[<00000000231c5bb1>] driver_probe_device+0x24/0xf0
[<0000000000a42377>] __driver_attach+0x77/0x190
[<00000000d7574da6>] bus_for_each_dev+0x7f/0xd0
[<00000000633166d2>] driver_attach+0x1e/0x30
[<00000000313b05b8>] bus_add_driver+0x12c/0x1e0
iio was allocated in atom_index_iio() called by atom_parse(),
but it doesn't got released when the dirver is shutdown.
Fix this kmemleak by free it in radeon_atombios_fini(). |
| In the Linux kernel, the following vulnerability has been resolved:
scsi: qla2xxx: Fix potential NULL pointer dereference
Klocwork tool reported 'cur_dsd' may be dereferenced. Add fix to validate
pointer before dereferencing the pointer. |
| In the Linux kernel, the following vulnerability has been resolved:
drm/rockchip: lvds: fix PM usage counter unbalance in poweron
pm_runtime_get_sync will increment pm usage counter even it failed.
Forgetting to putting operation will result in reference leak here.
We fix it by replacing it with the newest pm_runtime_resume_and_get
to keep usage counter balanced. |
| In the Linux kernel, the following vulnerability has been resolved:
bpf: Fix out-of-bounds dynptr write in bpf_crypto_crypt
Stanislav reported that in bpf_crypto_crypt() the destination dynptr's
size is not validated to be at least as large as the source dynptr's
size before calling into the crypto backend with 'len = src_len'. This
can result in an OOB write when the destination is smaller than the
source.
Concretely, in mentioned function, psrc and pdst are both linear
buffers fetched from each dynptr:
psrc = __bpf_dynptr_data(src, src_len);
[...]
pdst = __bpf_dynptr_data_rw(dst, dst_len);
[...]
err = decrypt ?
ctx->type->decrypt(ctx->tfm, psrc, pdst, src_len, piv) :
ctx->type->encrypt(ctx->tfm, psrc, pdst, src_len, piv);
The crypto backend expects pdst to be large enough with a src_len length
that can be written. Add an additional src_len > dst_len check and bail
out if it's the case. Note that these kfuncs are accessible under root
privileges only. |
| In the Linux kernel, the following vulnerability has been resolved:
net: hinic: fix memory leak when reading function table
When the input parameter idx meets the expected case option in
hinic_dbg_get_func_table(), read_data is not released. Fix it. |
| In the Linux kernel, the following vulnerability has been resolved:
ubifs: Fix memory leak in alloc_wbufs()
kmemleak reported a sequence of memory leaks, and show them as following:
unreferenced object 0xffff8881575f8400 (size 1024):
comm "mount", pid 19625, jiffies 4297119604 (age 20.383s)
hex dump (first 32 bytes):
00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 ................
00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 ................
backtrace:
[<ffffffff8176cecd>] __kmalloc+0x4d/0x150
[<ffffffffa0406b2b>] ubifs_mount+0x307b/0x7170 [ubifs]
[<ffffffff819fa8fd>] legacy_get_tree+0xed/0x1d0
[<ffffffff81936f2d>] vfs_get_tree+0x7d/0x230
[<ffffffff819b2bd4>] path_mount+0xdd4/0x17b0
[<ffffffff819b37aa>] __x64_sys_mount+0x1fa/0x270
[<ffffffff83c14295>] do_syscall_64+0x35/0x80
[<ffffffff83e0006a>] entry_SYSCALL_64_after_hwframe+0x46/0xb0
unreferenced object 0xffff8881798a6e00 (size 512):
comm "mount", pid 19677, jiffies 4297121912 (age 37.816s)
hex dump (first 32 bytes):
6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b kkkkkkkkkkkkkkkk
6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b kkkkkkkkkkkkkkkk
backtrace:
[<ffffffff8176cecd>] __kmalloc+0x4d/0x150
[<ffffffffa0418342>] ubifs_wbuf_init+0x52/0x480 [ubifs]
[<ffffffffa0406ca5>] ubifs_mount+0x31f5/0x7170 [ubifs]
[<ffffffff819fa8fd>] legacy_get_tree+0xed/0x1d0
[<ffffffff81936f2d>] vfs_get_tree+0x7d/0x230
[<ffffffff819b2bd4>] path_mount+0xdd4/0x17b0
[<ffffffff819b37aa>] __x64_sys_mount+0x1fa/0x270
[<ffffffff83c14295>] do_syscall_64+0x35/0x80
[<ffffffff83e0006a>] entry_SYSCALL_64_after_hwframe+0x46/0xb0
The problem is that the ubifs_wbuf_init() returns an error in the
loop which in the alloc_wbufs(), then the wbuf->buf and wbuf->inodes
that were successfully alloced before are not freed.
Fix it by adding error hanging path in alloc_wbufs() which frees
the memory alloced before when ubifs_wbuf_init() returns an error. |
