{"id":"CVE-2024-49905","summary":"drm/amd/display: Add null check for 'afb' in amdgpu_dm_plane_handle_cursor_update (v2)","details":"In the Linux kernel, the following vulnerability has been resolved:\n\ndrm/amd/display: Add null check for 'afb' in amdgpu_dm_plane_handle_cursor_update (v2)\n\nThis commit adds a null check for the 'afb' variable in the\namdgpu_dm_plane_handle_cursor_update function. Previously, 'afb' was\nassumed to be null, but was used later in the code without a null check.\nThis could potentially lead to a null pointer dereference.\n\nChanges since v1:\n- Moved the null check for 'afb' to the line where 'afb' is used. (Alex)\n\nFixes the below:\ndrivers/gpu/drm/amd/amdgpu/../display/amdgpu_dm/amdgpu_dm_plane.c:1298 amdgpu_dm_plane_handle_cursor_update() error: we previously assumed 'afb' could be null (see line 1252)","modified":"2026-04-02T12:21:06.037121Z","published":"2024-10-21T18:01:36.038Z","related":["MGASA-2024-0344","MGASA-2024-0345","SUSE-SU-2024:4314-1","SUSE-SU-2024:4315-1","SUSE-SU-2024:4316-1","SUSE-SU-2024:4318-1","SUSE-SU-2024:4364-1","SUSE-SU-2024:4376-1","SUSE-SU-2024:4387-1","SUSE-SU-2025:20163-1","SUSE-SU-2025:20164-1","SUSE-SU-2025:20246-1","SUSE-SU-2025:20247-1","USN-7276-1","USN-7277-1","openSUSE-SU-2024:14500-1","openSUSE-SU-2025:14705-1"],"database_specific":{"osv_generated_from":"https://github.com/CVEProject/cvelistV5/tree/main/cves/2024/49xxx/CVE-2024-49905.json","cna_assigner":"Linux"},"references":[{"type":"WEB","url":"https://git.kernel.org/stable/c/75839e2365b666ff4e1b9047e442cab138eac4f6"},{"type":"WEB","url":"https://git.kernel.org/stable/c/9132882eaae4d21d2fc5843b3308379a481ebdf0"},{"type":"WEB","url":"https://git.kernel.org/stable/c/bd0e24e5e608ccb9fdda300bb974496d6d8cf57d"},{"type":"WEB","url":"https://git.kernel.org/stable/c/cd9e9e0852d501f169aa3bb34e4b413d2eb48c37"},{"type":"WEB","url":"https://git.kernel.org/stable/c/e4e26cbe34d7c1c1db5fb7b3101573c29866439f"},{"type":"WEB","url":"https://lists.debian.org/debian-lts-announce/2025/01/msg00001.html"},{"type":"ADVISORY","url":"https://github.com/CVEProject/cvelistV5/tree/main/cves/2024/49xxx/CVE-2024-49905.json"},{"type":"ADVISORY","url":"https://nvd.nist.gov/vuln/detail/CVE-2024-49905"},{"type":"PACKAGE","url":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git"}],"affected":[{"ranges":[{"type":"GIT","repo":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git","events":[{"introduced":"4562236b3bc0a28aeb6ee93b2d8a849a4c4e1c7c"},{"fixed":"bd0e24e5e608ccb9fdda300bb974496d6d8cf57d"},{"fixed":"75839e2365b666ff4e1b9047e442cab138eac4f6"},{"fixed":"9132882eaae4d21d2fc5843b3308379a481ebdf0"},{"fixed":"e4e26cbe34d7c1c1db5fb7b3101573c29866439f"},{"fixed":"cd9e9e0852d501f169aa3bb34e4b413d2eb48c37"}]}],"database_specific":{"source":"https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2024-49905.json"}}],"schema_version":"1.7.5"}