CVE-2024-27041 (GCVE-0-2024-27041)

Vulnerability from cvelistv5 – Published: 2024-05-01 12:54 – Updated: 2025-05-04 09:02
VLAI?
Title
drm/amd/display: fix NULL checks for adev->dm.dc in amdgpu_dm_fini()
Summary
In the Linux kernel, the following vulnerability has been resolved: drm/amd/display: fix NULL checks for adev->dm.dc in amdgpu_dm_fini() Since 'adev->dm.dc' in amdgpu_dm_fini() might turn out to be NULL before the call to dc_enable_dmub_notifications(), check beforehand to ensure there will not be a possible NULL-ptr-deref there. Also, since commit 1e88eb1b2c25 ("drm/amd/display: Drop CONFIG_DRM_AMD_DC_HDCP") there are two separate checks for NULL in 'adev->dm.dc' before dc_deinit_callbacks() and dc_dmub_srv_destroy(). Clean up by combining them all under one 'if'. Found by Linux Verification Center (linuxtesting.org) with static analysis tool SVACE.
Severity ?
5.5 (Medium)
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H
CWE
  • CWE-476 - NULL Pointer Dereference
Assigner
References
Impacted products
Vendor Product Version
Linux Linux Affected: 81927e2808be5adace93c2012d45d6938d3a7aa0 , < e040f1fbe9abae91b12b074cfc3bbb5367b79811 (git)
Affected: 81927e2808be5adace93c2012d45d6938d3a7aa0 , < ca2eb375db76fd50f31afdd67d6ca4f833254957 (git)
Affected: 81927e2808be5adace93c2012d45d6938d3a7aa0 , < 1c62697e4086de988b31124fb8c79c244ea05f2b (git)
Affected: 81927e2808be5adace93c2012d45d6938d3a7aa0 , < 2a3cfb9a24a28da9cc13d2c525a76548865e182c (git)
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    Linux Linux Affected: 5.14
Unaffected: 0 , < 5.14 (semver)
Unaffected: 6.6.23 , ≤ 6.6.* (semver)
Unaffected: 6.7.11 , ≤ 6.7.* (semver)
Unaffected: 6.8.2 , ≤ 6.8.* (semver)
Unaffected: 6.9 , ≤ * (original_commit_for_fix)
Create a notification for this product.
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  • Confirmed: The vulnerability has been validated from an analyst's perspective.
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