Security Vulnerabilities - CVEs Published In 2024
In the Linux kernel, the following vulnerability has been resolved:
slab: Fix too strict alignment check in create_cache()
On m68k, where the minimum alignment of unsigned long is 2 bytes:
Kernel panic - not syncing: __kmem_cache_create_args: Failed to create slab 'io_kiocb'. Error -22
CPU: 0 UID: 0 PID: 1 Comm: swapper Not tainted 6.12.0-atari-03776-g7eaa1f99261a #1783
Stack from 0102fe5c:
0102fe5c 00514a2b 00514a2b ffffff00 00000001 0051f5ed 00425e78 00514a2b
0041eb74 ffffffea 00000310 0051f5ed ffffffea ffffffea 00601f60 00000044
0102ff20 000e7a68 0051ab8e 004383b8 0051f5ed ffffffea 000000b8 00000007
01020c00 00000000 000e77f0 0041e5f0 005f67c0 0051f5ed 000000b6 0102fef4
00000310 0102fef4 00000000 00000016 005f676c 0060a34c 00000010 00000004
00000038 0000009a 01000000 000000b8 005f668e 0102e000 00001372 0102ff88
Call Trace: [<00425e78>] dump_stack+0xc/0x10
[<0041eb74>] panic+0xd8/0x26c
[<000e7a68>] __kmem_cache_create_args+0x278/0x2e8
[<000e77f0>] __kmem_cache_create_args+0x0/0x2e8
[<0041e5f0>] memset+0x0/0x8c
[<005f67c0>] io_uring_init+0x54/0xd2
The minimal alignment of an integral type may differ from its size,
hence is not safe to assume that an arbitrary freeptr_t (which is
basically an unsigned long) is always aligned to 4 or 8 bytes.
As nothing seems to require the additional alignment, it is safe to fix
this by relaxing the check to the actual minimum alignment of freeptr_t.
CVSS Score
5.5
EPSS Score
0.0
Published
2024-12-27
In the Linux kernel, the following vulnerability has been resolved:
PCI: endpoint: Fix PCI domain ID release in pci_epc_destroy()
pci_epc_destroy() invokes pci_bus_release_domain_nr() to release the PCI
domain ID, but there are two issues:
- 'epc->dev' is passed to pci_bus_release_domain_nr() which was already
freed by device_unregister(), leading to a use-after-free issue.
- Domain ID corresponds to the EPC device parent, so passing 'epc->dev'
is also wrong.
Fix these issues by passing 'epc->dev.parent' to
pci_bus_release_domain_nr() and also do it before device_unregister().
[mani: reworded subject and description]
CVSS Score
7.8
EPSS Score
0.0
Published
2024-12-27
In the Linux kernel, the following vulnerability has been resolved:
s390/stacktrace: Use break instead of return statement
arch_stack_walk_user_common() contains a return statement instead of a
break statement in case store_ip() fails while trying to store a callchain
entry of a user space process.
This may lead to a missing pagefault_enable() call.
If this happens any subsequent page fault of the process won't be resolved
by the page fault handler and this in turn will lead to the process being
killed.
Use a break instead of a return statement to fix this.
CVSS Score
5.5
EPSS Score
0.0
Published
2024-12-27
In the Linux kernel, the following vulnerability has been resolved:
drm/amdgpu: fix usage slab after free
[ +0.000021] BUG: KASAN: slab-use-after-free in drm_sched_entity_flush+0x6cb/0x7a0 [gpu_sched]
[ +0.000027] Read of size 8 at addr ffff8881b8605f88 by task amd_pci_unplug/2147
[ +0.000023] CPU: 6 PID: 2147 Comm: amd_pci_unplug Not tainted 6.10.0+ #1
[ +0.000016] Hardware name: ASUS System Product Name/ROG STRIX B550-F GAMING (WI-FI), BIOS 1401 12/03/2020
[ +0.000016] Call Trace:
[ +0.000008] <TASK>
[ +0.000009] dump_stack_lvl+0x76/0xa0
[ +0.000017] print_report+0xce/0x5f0
[ +0.000017] ? drm_sched_entity_flush+0x6cb/0x7a0 [gpu_sched]
[ +0.000019] ? srso_return_thunk+0x5/0x5f
[ +0.000015] ? kasan_complete_mode_report_info+0x72/0x200
[ +0.000016] ? drm_sched_entity_flush+0x6cb/0x7a0 [gpu_sched]
[ +0.000019] kasan_report+0xbe/0x110
[ +0.000015] ? drm_sched_entity_flush+0x6cb/0x7a0 [gpu_sched]
[ +0.000023] __asan_report_load8_noabort+0x14/0x30
[ +0.000014] drm_sched_entity_flush+0x6cb/0x7a0 [gpu_sched]
[ +0.000020] ? srso_return_thunk+0x5/0x5f
[ +0.000013] ? __kasan_check_write+0x14/0x30
[ +0.000016] ? __pfx_drm_sched_entity_flush+0x10/0x10 [gpu_sched]
[ +0.000020] ? srso_return_thunk+0x5/0x5f
[ +0.000013] ? __kasan_check_write+0x14/0x30
[ +0.000013] ? srso_return_thunk+0x5/0x5f
[ +0.000013] ? enable_work+0x124/0x220
[ +0.000015] ? __pfx_enable_work+0x10/0x10
[ +0.000013] ? srso_return_thunk+0x5/0x5f
[ +0.000014] ? free_large_kmalloc+0x85/0xf0
[ +0.000016] drm_sched_entity_destroy+0x18/0x30 [gpu_sched]
[ +0.000020] amdgpu_vce_sw_fini+0x55/0x170 [amdgpu]
[ +0.000735] ? __kasan_check_read+0x11/0x20
[ +0.000016] vce_v4_0_sw_fini+0x80/0x110 [amdgpu]
[ +0.000726] amdgpu_device_fini_sw+0x331/0xfc0 [amdgpu]
[ +0.000679] ? mutex_unlock+0x80/0xe0
[ +0.000017] ? __pfx_amdgpu_device_fini_sw+0x10/0x10 [amdgpu]
[ +0.000662] ? srso_return_thunk+0x5/0x5f
[ +0.000014] ? __kasan_check_write+0x14/0x30
[ +0.000013] ? srso_return_thunk+0x5/0x5f
[ +0.000013] ? mutex_unlock+0x80/0xe0
[ +0.000016] amdgpu_driver_release_kms+0x16/0x80 [amdgpu]
[ +0.000663] drm_minor_release+0xc9/0x140 [drm]
[ +0.000081] drm_release+0x1fd/0x390 [drm]
[ +0.000082] __fput+0x36c/0xad0
[ +0.000018] __fput_sync+0x3c/0x50
[ +0.000014] __x64_sys_close+0x7d/0xe0
[ +0.000014] x64_sys_call+0x1bc6/0x2680
[ +0.000014] do_syscall_64+0x70/0x130
[ +0.000014] ? srso_return_thunk+0x5/0x5f
[ +0.000014] ? irqentry_exit_to_user_mode+0x60/0x190
[ +0.000015] ? srso_return_thunk+0x5/0x5f
[ +0.000014] ? irqentry_exit+0x43/0x50
[ +0.000012] ? srso_return_thunk+0x5/0x5f
[ +0.000013] ? exc_page_fault+0x7c/0x110
[ +0.000015] entry_SYSCALL_64_after_hwframe+0x76/0x7e
[ +0.000014] RIP: 0033:0x7ffff7b14f67
[ +0.000013] Code: ff e8 0d 16 02 00 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 00 f3 0f 1e fa 64 8b 04 25 18 00 00 00 85 c0 75 10 b8 03 00 00 00 0f 05 <48> 3d 00 f0 ff ff 77 41 c3 48 83 ec 18 89 7c 24 0c e8 73 ba f7 ff
[ +0.000026] RSP: 002b:00007fffffffe378 EFLAGS: 00000246 ORIG_RAX: 0000000000000003
[ +0.000019] RAX: ffffffffffffffda RBX: 0000000000000000 RCX: 00007ffff7b14f67
[ +0.000014] RDX: 0000000000000000 RSI: 00007ffff7f6f47a RDI: 0000000000000003
[ +0.000014] RBP: 00007fffffffe3a0 R08: 0000555555569890 R09: 0000000000000000
[ +0.000014] R10: 0000000000000000 R11: 0000000000000246 R12: 00007fffffffe5c8
[ +0.000013] R13: 00005555555552a9 R14: 0000555555557d48 R15: 00007ffff7ffd040
[ +0.000020] </TASK>
[ +0.000016] Allocated by task 383 on cpu 7 at 26.880319s:
[ +0.000014] kasan_save_stack+0x28/0x60
[ +0.000008] kasan_save_track+0x18/0x70
[ +0.000007] kasan_save_alloc_info+0x38/0x60
[ +0.000007] __kasan_kmalloc+0xc1/0xd0
[ +0.000007] kmalloc_trace_noprof+0x180/0x380
[ +0.000007] drm_sched_init+0x411/0xec0 [gpu_sched]
[ +0.000012] amdgpu_device_init+0x695f/0xa610 [amdgpu]
[ +0.000658] amdgpu_driver_load_kms+0x1a/0x120 [amdgpu]
[ +0.000662] amdgpu_pci_p
---truncated---
CVSS Score
7.8
EPSS Score
0.0
Published
2024-12-27
In the Linux kernel, the following vulnerability has been resolved:
drm/xe/guc_submit: fix race around suspend_pending
Currently in some testcases we can trigger:
xe 0000:03:00.0: [drm] Assertion `exec_queue_destroyed(q)` failed!
....
WARNING: CPU: 18 PID: 2640 at drivers/gpu/drm/xe/xe_guc_submit.c:1826 xe_guc_sched_done_handler+0xa54/0xef0 [xe]
xe 0000:03:00.0: [drm] *ERROR* GT1: DEREGISTER_DONE: Unexpected engine state 0x00a1, guc_id=57
Looking at a snippet of corresponding ftrace for this GuC id we can see:
162.673311: xe_sched_msg_add: dev=0000:03:00.0, gt=1 guc_id=57, opcode=3
162.673317: xe_sched_msg_recv: dev=0000:03:00.0, gt=1 guc_id=57, opcode=3
162.673319: xe_exec_queue_scheduling_disable: dev=0000:03:00.0, 1:0x2, gt=1, width=1, guc_id=57, guc_state=0x29, flags=0x0
162.674089: xe_exec_queue_kill: dev=0000:03:00.0, 1:0x2, gt=1, width=1, guc_id=57, guc_state=0x29, flags=0x0
162.674108: xe_exec_queue_close: dev=0000:03:00.0, 1:0x2, gt=1, width=1, guc_id=57, guc_state=0xa9, flags=0x0
162.674488: xe_exec_queue_scheduling_done: dev=0000:03:00.0, 1:0x2, gt=1, width=1, guc_id=57, guc_state=0xa9, flags=0x0
162.678452: xe_exec_queue_deregister: dev=0000:03:00.0, 1:0x2, gt=1, width=1, guc_id=57, guc_state=0xa1, flags=0x0
It looks like we try to suspend the queue (opcode=3), setting
suspend_pending and triggering a disable_scheduling. The user then
closes the queue. However the close will also forcefully signal the
suspend fence after killing the queue, later when the G2H response for
disable_scheduling comes back we have now cleared suspend_pending when
signalling the suspend fence, so the disable_scheduling now incorrectly
tries to also deregister the queue. This leads to warnings since the queue
has yet to even be marked for destruction. We also seem to trigger
errors later with trying to double unregister the same queue.
To fix this tweak the ordering when handling the response to ensure we
don't race with a disable_scheduling that didn't actually intend to
perform an unregister. The destruction path should now also correctly
wait for any pending_disable before marking as destroyed.
(cherry picked from commit f161809b362f027b6d72bd998e47f8f0bad60a2e)
CVSS Score
4.7
EPSS Score
0.0
Published
2024-12-27
In the Linux kernel, the following vulnerability has been resolved:
wifi: ath12k: Skip Rx TID cleanup for self peer
During peer create, dp setup for the peer is done where Rx TID is
updated for all the TIDs. Peer object for self peer will not go through
dp setup.
When core halts, dp cleanup is done for all the peers. While cleanup,
rx_tid::ab is accessed which causes below stack trace for self peer.
WARNING: CPU: 6 PID: 12297 at drivers/net/wireless/ath/ath12k/dp_rx.c:851
Call Trace:
__warn+0x7b/0x1a0
ath12k_dp_rx_frags_cleanup+0xd2/0xe0 [ath12k]
report_bug+0x10b/0x200
handle_bug+0x3f/0x70
exc_invalid_op+0x13/0x60
asm_exc_invalid_op+0x16/0x20
ath12k_dp_rx_frags_cleanup+0xd2/0xe0 [ath12k]
ath12k_dp_rx_frags_cleanup+0xca/0xe0 [ath12k]
ath12k_dp_rx_peer_tid_cleanup+0x39/0xa0 [ath12k]
ath12k_mac_peer_cleanup_all+0x61/0x100 [ath12k]
ath12k_core_halt+0x3b/0x100 [ath12k]
ath12k_core_reset+0x494/0x4c0 [ath12k]
sta object in peer will be updated when remote peer is created. Hence
use peer::sta to detect the self peer and skip the cleanup.
Tested-on: QCN9274 hw2.0 PCI WLAN.WBE.1.0.1-00029-QCAHKSWPL_SILICONZ-1
Tested-on: WCN7850 hw2.0 PCI WLAN.HMT.1.0.c5-00481-QCAHMTSWPL_V1.0_V2.0_SILICONZ-3
CVSS Score
5.5
EPSS Score
0.0
Published
2024-12-27
In the Linux kernel, the following vulnerability has been resolved:
udmabuf: change folios array from kmalloc to kvmalloc
When PAGE_SIZE 4096, MAX_PAGE_ORDER 10, 64bit machine,
page_alloc only support 4MB.
If above this, trigger this warn and return NULL.
udmabuf can change size limit, if change it to 3072(3GB), and then alloc
3GB udmabuf, will fail create.
[ 4080.876581] ------------[ cut here ]------------
[ 4080.876843] WARNING: CPU: 3 PID: 2015 at mm/page_alloc.c:4556 __alloc_pages+0x2c8/0x350
[ 4080.878839] RIP: 0010:__alloc_pages+0x2c8/0x350
[ 4080.879470] Call Trace:
[ 4080.879473] <TASK>
[ 4080.879473] ? __alloc_pages+0x2c8/0x350
[ 4080.879475] ? __warn.cold+0x8e/0xe8
[ 4080.880647] ? __alloc_pages+0x2c8/0x350
[ 4080.880909] ? report_bug+0xff/0x140
[ 4080.881175] ? handle_bug+0x3c/0x80
[ 4080.881556] ? exc_invalid_op+0x17/0x70
[ 4080.881559] ? asm_exc_invalid_op+0x1a/0x20
[ 4080.882077] ? udmabuf_create+0x131/0x400
Because MAX_PAGE_ORDER, kmalloc can max alloc 4096 * (1 << 10), 4MB
memory, each array entry is pointer(8byte), so can save 524288 pages(2GB).
Further more, costly order(order 3) may not be guaranteed that it can be
applied for, due to fragmentation.
This patch change udmabuf array use kvmalloc_array, this can fallback
alloc into vmalloc, which can guarantee allocation for any size and does
not affect the performance of kmalloc allocations.
CVSS Score
5.5
EPSS Score
0.0
Published
2024-12-27
In the Linux kernel, the following vulnerability has been resolved:
HID: hyperv: streamline driver probe to avoid devres issues
It was found that unloading 'hid_hyperv' module results in a devres
complaint:
...
hv_vmbus: unregistering driver hid_hyperv
------------[ cut here ]------------
WARNING: CPU: 2 PID: 3983 at drivers/base/devres.c:691 devres_release_group+0x1f2/0x2c0
...
Call Trace:
<TASK>
? devres_release_group+0x1f2/0x2c0
? __warn+0xd1/0x1c0
? devres_release_group+0x1f2/0x2c0
? report_bug+0x32a/0x3c0
? handle_bug+0x53/0xa0
? exc_invalid_op+0x18/0x50
? asm_exc_invalid_op+0x1a/0x20
? devres_release_group+0x1f2/0x2c0
? devres_release_group+0x90/0x2c0
? rcu_is_watching+0x15/0xb0
? __pfx_devres_release_group+0x10/0x10
hid_device_remove+0xf5/0x220
device_release_driver_internal+0x371/0x540
? klist_put+0xf3/0x170
bus_remove_device+0x1f1/0x3f0
device_del+0x33f/0x8c0
? __pfx_device_del+0x10/0x10
? cleanup_srcu_struct+0x337/0x500
hid_destroy_device+0xc8/0x130
mousevsc_remove+0xd2/0x1d0 [hid_hyperv]
device_release_driver_internal+0x371/0x540
driver_detach+0xc5/0x180
bus_remove_driver+0x11e/0x2a0
? __mutex_unlock_slowpath+0x160/0x5e0
vmbus_driver_unregister+0x62/0x2b0 [hv_vmbus]
...
And the issue seems to be that the corresponding devres group is not
allocated. Normally, devres_open_group() is called from
__hid_device_probe() but Hyper-V HID driver overrides 'hid_dev->driver'
with 'mousevsc_hid_driver' stub and basically re-implements
__hid_device_probe() by calling hid_parse() and hid_hw_start() but not
devres_open_group(). hid_device_probe() does not call __hid_device_probe()
for it. Later, when the driver is removed, hid_device_remove() calls
devres_release_group() as it doesn't check whether hdev->driver was
initially overridden or not.
The issue seems to be related to the commit 62c68e7cee33 ("HID: ensure
timely release of driver-allocated resources") but the commit itself seems
to be correct.
Fix the issue by dropping the 'hid_dev->driver' override and using
hid_register_driver()/hid_unregister_driver() instead. Alternatively, it
would have been possible to rely on the default handling but
HID_CONNECT_DEFAULT implies HID_CONNECT_HIDRAW and it doesn't seem to work
for mousevsc as-is.
CVSS Score
5.5
EPSS Score
0.0
Published
2024-12-27
In the Linux kernel, the following vulnerability has been resolved:
drivers: soc: xilinx: add the missing kfree in xlnx_add_cb_for_suspend()
If we fail to allocate memory for cb_data by kmalloc, the memory
allocation for eve_data is never freed, add the missing kfree()
in the error handling path.
CVSS Score
5.5
EPSS Score
0.0
Published
2024-12-27
In the Linux kernel, the following vulnerability has been resolved:
rcu/nocb: Fix missed RCU barrier on deoffloading
Currently, running rcutorture test with torture_type=rcu fwd_progress=8
n_barrier_cbs=8 nocbs_nthreads=8 nocbs_toggle=100 onoff_interval=60
test_boost=2, will trigger the following warning:
WARNING: CPU: 19 PID: 100 at kernel/rcu/tree_nocb.h:1061 rcu_nocb_rdp_deoffload+0x292/0x2a0
RIP: 0010:rcu_nocb_rdp_deoffload+0x292/0x2a0
Call Trace:
<TASK>
? __warn+0x7e/0x120
? rcu_nocb_rdp_deoffload+0x292/0x2a0
? report_bug+0x18e/0x1a0
? handle_bug+0x3d/0x70
? exc_invalid_op+0x18/0x70
? asm_exc_invalid_op+0x1a/0x20
? rcu_nocb_rdp_deoffload+0x292/0x2a0
rcu_nocb_cpu_deoffload+0x70/0xa0
rcu_nocb_toggle+0x136/0x1c0
? __pfx_rcu_nocb_toggle+0x10/0x10
kthread+0xd1/0x100
? __pfx_kthread+0x10/0x10
ret_from_fork+0x2f/0x50
? __pfx_kthread+0x10/0x10
ret_from_fork_asm+0x1a/0x30
</TASK>
CPU0 CPU2 CPU3
//rcu_nocb_toggle //nocb_cb_wait //rcutorture
// deoffload CPU1 // process CPU1's rdp
rcu_barrier()
rcu_segcblist_entrain()
rcu_segcblist_add_len(1);
// len == 2
// enqueue barrier
// callback to CPU1's
// rdp->cblist
rcu_do_batch()
// invoke CPU1's rdp->cblist
// callback
rcu_barrier_callback()
rcu_barrier()
mutex_lock(&rcu_state.barrier_mutex);
// still see len == 2
// enqueue barrier callback
// to CPU1's rdp->cblist
rcu_segcblist_entrain()
rcu_segcblist_add_len(1);
// len == 3
// decrement len
rcu_segcblist_add_len(-2);
kthread_parkme()
// CPU1's rdp->cblist len == 1
// Warn because there is
// still a pending barrier
// trigger warning
WARN_ON_ONCE(rcu_segcblist_n_cbs(&rdp->cblist));
cpus_read_unlock();
// wait CPU1 to comes online and
// invoke barrier callback on
// CPU1 rdp's->cblist
wait_for_completion(&rcu_state.barrier_completion);
// deoffload CPU4
cpus_read_lock()
rcu_barrier()
mutex_lock(&rcu_state.barrier_mutex);
// block on barrier_mutex
// wait rcu_barrier() on
// CPU3 to unlock barrier_mutex
// but CPU3 unlock barrier_mutex
// need to wait CPU1 comes online
// when CPU1 going online will block on cpus_write_lock
The above scenario will not only trigger a WARN_ON_ONCE(), but also
trigger a deadlock.
Thanks to nocb locking, a second racing rcu_barrier() on an offline CPU
will either observe the decremented callback counter down to 0 and spare
the callback enqueue, or rcuo will observe the new callback and keep
rdp->nocb_cb_sleep to false.
Therefore check rdp->nocb_cb_sleep before parking to make sure no
further rcu_barrier() is waiting on the rdp.
CVSS Score
4.7
EPSS Score
0.0
Published
2024-12-27