CVE-2022-49137 (GCVE-0-2022-49137)

Vulnerability from cvelistv5 – Published: 2025-02-26 01:55 – Updated: 2025-10-01 19:57
VLAI?
Title
drm/amd/amdgpu/amdgpu_cs: fix refcount leak of a dma_fence obj
Summary
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.
Severity ?
5.5 (Medium)
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H
CWE
Assigner
References
Impacted products
Vendor Product Version
Linux Linux Affected: d38ceaf99ed015f2a0b9af3499791bd3a3daae21 , < 72d77ddb2224ebc00648f4f78f8a9a259dccbdf7 (git)
Affected: d38ceaf99ed015f2a0b9af3499791bd3a3daae21 , < 4009f104b02b223d1a11d74b36b1cc083bc37028 (git)
Affected: d38ceaf99ed015f2a0b9af3499791bd3a3daae21 , < 927beb05aaa429c883cc0ec6adc48964b187e291 (git)
Affected: d38ceaf99ed015f2a0b9af3499791bd3a3daae21 , < 3edd8646cb7c11b57c90e026bda6f21076223f5b (git)
Affected: d38ceaf99ed015f2a0b9af3499791bd3a3daae21 , < b6d1f7d97c81ebaf2cda9c4c943ee2e484fffdcf (git)
Affected: d38ceaf99ed015f2a0b9af3499791bd3a3daae21 , < bc2d5c0775c839e2b072884f4ee6a93ba410f107 (git)
Affected: d38ceaf99ed015f2a0b9af3499791bd3a3daae21 , < dfced44f122c500004a48ecc8db516bb6a295a1b (git)
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    Linux Linux Affected: 4.2
Unaffected: 0 , < 4.2 (semver)
Unaffected: 4.19.238 , ≤ 4.19.* (semver)
Unaffected: 5.4.189 , ≤ 5.4.* (semver)
Unaffected: 5.10.111 , ≤ 5.10.* (semver)
Unaffected: 5.15.34 , ≤ 5.15.* (semver)
Unaffected: 5.16.20 , ≤ 5.16.* (semver)
Unaffected: 5.17.3 , ≤ 5.17.* (semver)
Unaffected: 5.18 , ≤ * (original_commit_for_fix)
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  • Seen: The vulnerability was mentioned, discussed, or observed by the user.
  • Confirmed: The vulnerability has been validated from an analyst's perspective.
  • Published Proof of Concept: A public proof of concept is available for this vulnerability.
  • Exploited: The vulnerability was observed as exploited by the user who reported the sighting.
  • Patched: The vulnerability was observed as successfully patched by the user who reported the sighting.
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