CVE-2024-27041
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(),…
Does this matter?
Lower severity and a low EPSS score (0.27%). Track it; it rarely justifies an emergency change on its own.
Description
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.
- CVSS 3.1
- 5.5 MEDIUMCVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H
- EPSS
- 0.27% probability · 19th percentile
- CISA KEV
- Not listed
- Weakness
- CWE-476
- Affected
- linux/linux kernel
- Source
- 416baaa9-dc9f-4396-8d5f-8c081fb06d67
References
- https://git.kernel.org/stable/c/1c62697e4086de988b31124fb8c79c244ea05f2bPatch
- https://git.kernel.org/stable/c/2a3cfb9a24a28da9cc13d2c525a76548865e182cPatch
- https://git.kernel.org/stable/c/ca2eb375db76fd50f31afdd67d6ca4f833254957Patch
- https://git.kernel.org/stable/c/e040f1fbe9abae91b12b074cfc3bbb5367b79811Patch
- https://git.kernel.org/stable/c/1c62697e4086de988b31124fb8c79c244ea05f2bPatch
- https://git.kernel.org/stable/c/2a3cfb9a24a28da9cc13d2c525a76548865e182cPatch
- https://git.kernel.org/stable/c/ca2eb375db76fd50f31afdd67d6ca4f833254957Patch
- https://git.kernel.org/stable/c/e040f1fbe9abae91b12b074cfc3bbb5367b79811Patch
Source: NVD record, EPSS from FIRST.org, KEV from CISA. Refreshed daily.