{"id":"CVE-2023-52821","state":"PUBLISHED","title":"drm/panel: fix a possible null pointer dereference","description":"In the Linux kernel, the following vulnerability has been resolved:\n\ndrm/panel: fix a possible null pointer dereference\n\nIn versatile_panel_get_modes(), the return value of drm_mode_duplicate()\nis assigned to mode, which will lead to a NULL pointer dereference\non failure of drm_mode_duplicate(). Add a check to avoid npd.","publishedAt":"2024-05-21T15:31:26.888Z","updatedAt":"2026-05-11T19:33:44.554Z","severity":null,"assigner":"Linux","products":["Linux Linux"],"affected":[{"vendor":"Linux","product":"Linux","defaultStatus":"unaffected","versions":[{"version":"f40f5b87d974655984ce545515e5c9e57b371b3c","status":"affected","lessThan":"c7dc0aca5962fb37dbea9769dd26ec37813faae1","versionType":"git"},{"version":"f40f5b87d974655984ce545515e5c9e57b371b3c","status":"affected","lessThan":"2381f6b628b3214f07375e0adf5ce17093c31190","versionType":"git"},{"version":"f40f5b87d974655984ce545515e5c9e57b371b3c","status":"affected","lessThan":"79813cd59398015867d51e6d7dcc14d287d4c402","versionType":"git"},{"version":"f40f5b87d974655984ce545515e5c9e57b371b3c","status":"affected","lessThan":"4fa930ba046d20fc1899770396ee11e905fa96e4","versionType":"git"},{"version":"f40f5b87d974655984ce545515e5c9e57b371b3c","status":"affected","lessThan":"8a9dd36fcb4f3906982b82593393578db4479992","versionType":"git"},{"version":"f40f5b87d974655984ce545515e5c9e57b371b3c","status":"affected","lessThan":"924e5814d1f84e6fa5cb19c6eceb69f066225229","versionType":"git"}],"repo":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git","programFiles":["drivers/gpu/drm/panel/panel-arm-versatile.c"]},{"vendor":"Linux","product":"Linux","defaultStatus":"affected","versions":[{"version":"4.17","status":"affected"},{"version":"0","status":"unaffected","lessThan":"4.17","versionType":"semver"},{"version":"5.10.202","status":"unaffected","lessThanOrEqual":"5.10.*","versionType":"semver"},{"version":"5.15.140","status":"unaffected","lessThanOrEqual":"5.15.*","versionType":"semver"},{"version":"6.1.64","status":"unaffected","lessThanOrEqual":"6.1.*","versionType":"semver"},{"version":"6.5.13","status":"unaffected","lessThanOrEqual":"6.5.*","versionType":"semver"},{"version":"6.6.3","status":"unaffected","lessThanOrEqual":"6.6.*","versionType":"semver"},{"version":"6.7","status":"unaffected","lessThanOrEqual":"*","versionType":"original_commit_for_fix"}],"repo":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git","programFiles":["drivers/gpu/drm/panel/panel-arm-versatile.c"]}],"references":["https://git.kernel.org/stable/c/c7dc0aca5962fb37dbea9769dd26ec37813faae1","https://git.kernel.org/stable/c/2381f6b628b3214f07375e0adf5ce17093c31190","https://git.kernel.org/stable/c/79813cd59398015867d51e6d7dcc14d287d4c402","https://git.kernel.org/stable/c/4fa930ba046d20fc1899770396ee11e905fa96e4","https://git.kernel.org/stable/c/8a9dd36fcb4f3906982b82593393578db4479992","https://git.kernel.org/stable/c/924e5814d1f84e6fa5cb19c6eceb69f066225229"],"weaknesses":[],"ingestedAt":"2026-10-29T20:06:33.064Z","source":{"repository":"CVEProject/cvelistV5","path":"cves/2023/52xxx/CVE-2023-52821.json","commit":"556c9d3a8cd17e218bb8e452ba7cd619a384ff47"},"raw":{"dataType":"CVE_RECORD","dataVersion":"5.2","cveMetadata":{"cveId":"CVE-2023-52821","state":"PUBLISHED","datePublished":"2024-05-21T15:31:26.888Z","dateUpdated":"2026-05-11T19:33:44.554Z","assignerShortName":"Linux","assignerOrgId":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","dateReserved":"2024-05-21T15:19:24.249Z"},"containers":{"cna":{"title":"drm/panel: fix a possible null pointer dereference","descriptions":[{"lang":"en","value":"In the Linux kernel, the following vulnerability has been resolved:\n\ndrm/panel: fix a possible null pointer dereference\n\nIn versatile_panel_get_modes(), the return value of drm_mode_duplicate()\nis assigned to mode, which will lead to a NULL pointer dereference\non failure of drm_mode_duplicate(). 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