CVE-2024-26833 in Linux정보

요약

\~에 의해 VulDB • 2026. 05. 24.

리눅스 커널에서 다음 취약점이 해결되었습니다:

drm/amd/display: dm_sw_fini()에서의 메모리 누수 수정

dmub_srv를 파괴한 후, 해당 메모리가 해제되지 않아 메모리 누수가 발생합니다:

unreferenced object 0xffff896302b45800 (size 1024): comm "(udev-worker)", pid 222, jiffies 4294894636 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 (crc 6265fd77): [] kmalloc_trace+0x29d/0x340
[] dm_dmub_sw_init+0xb4/0x450 [amdgpu]
[] dm_sw_init+0x15/0x2b0 [amdgpu]
[] amdgpu_device_init+0x1417/0x24e0 [amdgpu]
[] amdgpu_driver_load_kms+0x15/0x190 [amdgpu]
[] amdgpu_pci_probe+0x187/0x4e0 [amdgpu]
[] local_pci_probe+0x3e/0x90
[] pci_device_probe+0xc3/0x230
[] really_probe+0xe2/0x480
[] __driver_probe_device+0x78/0x160
[] driver_probe_device+0x1f/0x90
[] __driver_attach+0xce/0x1c0
[] bus_for_each_dev+0x70/0xc0
[] bus_add_driver+0x112/0x210
[] driver_register+0x55/0x100
[] do_one_initcall+0x41/0x300

dmub_srv를 파괴한 후 이를 해제하여 이 문제를 수정합니다.

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