{"id":"CVE-2024-27040","summary":"drm/amd/display: Add 'replay' NULL check in 'edp_set_replay_allow_active()'","details":"In the Linux kernel, the following vulnerability has been resolved:\n\ndrm/amd/display: Add 'replay' NULL check in 'edp_set_replay_allow_active()'\n\nIn the first if statement, we're checking if 'replay' is NULL. But in\nthe second if statement, we're not checking if 'replay' is NULL again\nbefore calling replay-\u003efuncs-\u003ereplay_set_power_opt().\n\nif (replay == NULL && force_static)\n    return false;\n\n...\n\nif (link-\u003ereplay_settings.replay_feature_enabled &&\n    replay-\u003efuncs-\u003ereplay_set_power_opt) {\n\treplay-\u003efuncs-\u003ereplay_set_power_opt(replay, *power_opts, panel_inst);\n\tlink-\u003ereplay_settings.replay_power_opt_active = *power_opts;\n}\n\nIf 'replay' is NULL, this will cause a null pointer dereference.\n\nFixes the below found by smatch:\ndrivers/gpu/drm/amd/amdgpu/../display/dc/link/protocols/link_edp_panel_control.c:895 edp_set_replay_allow_active() error: we previously assumed 'replay' could be null (see line 887)","modified":"2026-03-20T12:35:22.737693Z","published":"2024-05-01T12:54:00.645Z","related":["SUSE-SU-2025:20008-1","SUSE-SU-2025:20028-1"],"database_specific":{"osv_generated_from":"https://github.com/CVEProject/cvelistV5/tree/main/cves/2024/27xxx/CVE-2024-27040.json","cna_assigner":"Linux"},"references":[{"type":"WEB","url":"https://git.kernel.org/stable/c/d0e94f4807ff0df66cf447d6b4bbb8ac830e99c3"},{"type":"WEB","url":"https://git.kernel.org/stable/c/e7cadd5d3a8ffe334d0229ba9eda4290138d56e7"},{"type":"WEB","url":"https://git.kernel.org/stable/c/f610c46771ef1047e46d61807aa7c69cd29e63d8"},{"type":"WEB","url":"https://git.kernel.org/stable/c/f6aed043ee5d75b3d1bfc452b1a9584b63c8f76b"},{"type":"ADVISORY","url":"https://github.com/CVEProject/cvelistV5/tree/main/cves/2024/27xxx/CVE-2024-27040.json"},{"type":"ADVISORY","url":"https://nvd.nist.gov/vuln/detail/CVE-2024-27040"},{"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":"c7ddc0a800bc9f681a18c3bdd9f06b61adfabc11"},{"fixed":"f610c46771ef1047e46d61807aa7c69cd29e63d8"},{"fixed":"e7cadd5d3a8ffe334d0229ba9eda4290138d56e7"},{"fixed":"d0e94f4807ff0df66cf447d6b4bbb8ac830e99c3"},{"fixed":"f6aed043ee5d75b3d1bfc452b1a9584b63c8f76b"}]}],"database_specific":{"source":"https://storage.googleapis.com/osv-test-cve-osv-conversion/osv-output/CVE-2024-27040.json"}}],"schema_version":"1.7.5","severity":[{"type":"CVSS_V3","score":"CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:N/I:N/A:H"}]}