CVE-2022-50527

Description

In the Linux kernel, the following vulnerability has been resolved: drm/amdgpu: Fix size validation for non-exclusive domains (v4) Fix amdgpu_bo_validate_size() to check whether the TTM domain manager for the requested memory exists, else we get a kernel oops when dereferencing "man". v2: Make the patch standalone, i.e. not dependent on local patches. v3: Preserve old behaviour and just check that the manager pointer is not NULL. v4: Complain if GTT domain requested and it is uninitialized--most likely a bug.

CVSS Metrics

• v3.1•MEDIUM•Score: 5.5CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H

EPSS Trends

Current EPSS score: 0.01%• Percentile: 2%

Techniques & Countermeasures

• CWE-476•NULL Pointer Dereference

  The product dereferences a pointer that it expects to be valid but is NULL.

Affected Systems

• linux•linux

  ≥ d38ceaf99ed015f2a0b9af3499791bd3a3daae21, < 80546eef216854a7bd47e39e828f04b406c00599 | ≥ d38ceaf99ed015f2a0b9af3499791bd3a3daae21, < 8ba7c55e112f4ffd2a95b99be1cb1c891ef08ba1 | ≥ d38ceaf99ed015f2a0b9af3499791bd3a3daae21, < 7554886daa31eacc8e7fac9e15bbce67d10b8f1f | 4.2

• linux•linux_kernel

  ≥ 4.2, < 6.0.19 | ≥ 6.1, < 6.1.5

References (3)

• https://git.kernel.org/stable/c/80546eef216854a7bd47e39e828f04b406c00599
• https://git.kernel.org/stable/c/8ba7c55e112f4ffd2a95b99be1cb1c891ef08ba1
• https://git.kernel.org/stable/c/7554886daa31eacc8e7fac9e15bbce67d10b8f1f