Description

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]
[ +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_kmal...

Classification

CVE ID: CVE-2024-56551

Affected Products

Vendor: Linux

Product: Linux

Exploit Prediction Scoring System (EPSS)

EPSS Score: 0.04% (probability of being exploited)

EPSS Percentile: 5.08% (scored less or equal to compared to others)

EPSS Date: 2025-02-04 (when was this score calculated)

References

https://git.kernel.org/stable/c/3990ef742c064e22189b954522930db04fc6b1a7
https://git.kernel.org/stable/c/6383199ada42d30562b4249c393592a2a9c38165
https://git.kernel.org/stable/c/b61badd20b443eabe132314669bb51a263982e5c

Timeline