CVE-2026-53293
In the Linux kernel, the following vulnerability has been resolved: drm/amdgpu: fix AMDGPU_INFO_READ_MMR_REG There were multiple issues in that code. First of all the order between the reset semaphore and the mm_lock was wrong (e.g. copy_to_user) was called while holding the lock. Then we allocated memory while holding the reset semaphore which is also a pretty big bug and can deadlock. Then we used down_read_trylock() instead of waiting for the reset to finish. (cherry picked from commit 361b6e6b303d4b691f6c5974d3eaab67ca6dd90e)
Слабость
In the Linux kernel, the following vulnerability has been resolved: drm/amdgpu: fix AMDGPU_INFO_READ_MMR_REG There were multiple issues in that code. First of all the order between the reset semaphore and the mm_lock was wrong (e.g. copy_to_user) was called while holding the lock. Then we allocated memory while holding the reset semaphore which is also a pretty big bug and can deadlock. Then we used down_read_trylock() instead of waiting for the reset to finish. (cherry picked from commit 361b6e6b303d4b691f6c5974d3eaab67ca6dd90e)
Затронутые продукты
- linux linux_kernel
Источники
- https://git.kernel.org/stable/c/0ef196a208385b7d7da79f411c161b04e97283e2
- https://git.kernel.org/stable/c/5c29d20470d4566d1b68df57097d642d01f8b427
- https://git.kernel.org/stable/c/61957c2e467b39b528a290016367d32a433fa846
- https://git.kernel.org/stable/c/8c4254c8f5836e77ae83e7fc037f02b69f7a0977
- https://git.kernel.org/stable/c/a31c3feb54b15a90232e497ad0e27e8a82052d8d
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