🛡️ CVE-2022-49137 — kernel

🟡 CVSS 5.5 — Medium ✅ No Known Exploit NVD
5.5
CVSS Score
0 Low4 Medium7 High9 Critical10

Description

drm/amd/amdgpu/amdgpu_cs: fix refcount leak of a dma_fence obj

In the Linux kernel, the following vulnerability has been resolved:

drm/amd/amdgpu/amdgpu_cs: fix refcount leak of a dma_fence obj

This issue takes place in an error path in

amdgpu_cs_fence_to_handle_ioctl(). When info->in.what falls into

default case, the function simply returns -EINVAL, forgetting to

decrement the reference count of a dma_fence obj, which is bumped

earlier by amdgpu_cs_get_fence(). This may result in reference count

leaks.

Fix it by decreasing the refcount of specific object before returning

the error code.

How this vulnerability can be exploited

This issue can be reached with local access to the system, attack complexity is low, an attacker needs low-level privileges on the target. No user interaction is required. The scope is unchanged, so the impact stays within the vulnerable component. Rated impact: confidentiality none, integrity none, availability high.

Affected software

CVE-2022-49137 is recorded against 2 packages.

  • kernel (from 5.17.0 up to 5.17.3)
  • linux-kernel (from 5.17 up to 5.17.3)

Timeline and source

Published on 26 February 2025 and last revised on 15 July 2026. No public exploit is currently recorded for this entry. A vendor advisory or fix has been published. Record sourced from NVD.

References

git.kernel.org (Web)
git.kernel.org (Web)
git.kernel.org (Web)
git.kernel.org (Web)
git.kernel.org (Web)
git.kernel.org (Web)
git.kernel.org (Web)
github.com (Advisory)
nvd.nist.gov (Advisory)
git.kernel.org (Package)

CVE-2022-49137 on other distributions

Each distribution ships its own build and its own fixed version. Pick the one you run:

Details

Severity Medium
CVSS Score 5.5
CVSS Vector CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H
CWE N/A
Public Exploit ✅ No
Source NVD
Published 2025-02-26
Updated 2026-08-12
Modified 2026-07-15

Affected Packages

Software From version Fixed in
kernel 5.17.0 5.17.3
linux-kernel 5.17 5.17.3

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