{"id":"CVE-2024-26662","title":"drm/amd/display: Fix 'panel_cntl' could be null in 'dcn21_set_backlight_level()'","summary":"In the Linux kernel, the following vulnerability has been resolved:\n\ndrm/amd/display: Fix 'panel_cntl' could be null in 'dcn21_set_backlight_level()'\n\n'panel_cntl' structure used to control the display panel could be null,\ndereferencing …","severity":"medium","cvss":5.5,"cvssVector":"CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H","cvssSource":"adp","vendor":"Linux","product":"Linux","affected":["Linux >= 474ac4a875ca6fea3fc5183d3ad22ef7523dca53 < 94a506cbfd1bd4817502bed097e24cbab23cfce3","Linux >= 474ac4a875ca6fea3fc5183d3ad22ef7523dca53 < 2e150ccea13129eb048679114808eb9770443e4d","Linux >= 474ac4a875ca6fea3fc5183d3ad22ef7523dca53 < 0c863cab0e9173f8b6c7bc328bee3b8625f131b5","Linux >= 474ac4a875ca6fea3fc5183d3ad22ef7523dca53 < e96fddb32931d007db12b1fce9b5e8e4c080401b","Linux 5.9"],"ssvc":{"exploitation":"none","automatable":"no","technicalImpact":"partial","timestamp":"2024-04-02T15:53:23.636262Z"},"published":"2024-04-02","updated":"2026-10-30","sourceUpdated":"2026-10-30T12:17:44.443Z","source":"CVEORG","sourceUrl":"https://www.cve.org/CVERecord?id=CVE-2024-26662","references":[{"url":"https://git.kernel.org/stable/c/94a506cbfd1bd4817502bed097e24cbab23cfce3"},{"url":"https://git.kernel.org/stable/c/2e150ccea13129eb048679114808eb9770443e4d"},{"url":"https://git.kernel.org/stable/c/0c863cab0e9173f8b6c7bc328bee3b8625f131b5"},{"url":"https://git.kernel.org/stable/c/e96fddb32931d007db12b1fce9b5e8e4c080401b"}],"tags":["cve.org"],"epss":0.00225,"epssPercentile":0.13244,"ingestedAt":"2026-11-03T11:43:15.792Z","slug":"CVE-2024-26662","body":"## Overview\n\nIn the Linux kernel, the following vulnerability has been resolved:\n\ndrm/amd/display: Fix 'panel_cntl' could be null in 'dcn21_set_backlight_level()'\n\n'panel_cntl' structure used to control the display panel could be null,\ndereferencing it could lead to a null pointer access.\n\nFixes the below:\ndrivers/gpu/drm/amd/amdgpu/../display/dc/hwss/dcn21/dcn21_hwseq.c:269 dcn21_set_backlight_level() error: we previously assumed 'panel_cntl' could be null (see line 250)\n\n## Affected\n\n- `Linux >= 474ac4a875ca6fea3fc5183d3ad22ef7523dca53 < 94a506cbfd1bd4817502bed097e24cbab23cfce3`\n- `Linux >= 474ac4a875ca6fea3fc5183d3ad22ef7523dca53 < 2e150ccea13129eb048679114808eb9770443e4d`\n- `Linux >= 474ac4a875ca6fea3fc5183d3ad22ef7523dca53 < 0c863cab0e9173f8b6c7bc328bee3b8625f131b5`\n- `Linux >= 474ac4a875ca6fea3fc5183d3ad22ef7523dca53 < e96fddb32931d007db12b1fce9b5e8e4c080401b`\n- `Linux 5.9`\n\n## Remediation\n\nRefer to the linked advisories for vendor-supplied fixes and affected version ranges.","depth":"sunlit","depthScore":30,"depthScoreParts":{"impact":30.3,"likelihood":0,"exploitation":0,"ransomware":0},"changes":[]}