{"id":"CVE-2023-53833","state":"PUBLISHED","title":"drm/i915: Fix NULL ptr deref by checking new_crtc_state","description":"In the Linux kernel, the following vulnerability has been resolved:\n\ndrm/i915: Fix NULL ptr deref by checking new_crtc_state\n\nintel_atomic_get_new_crtc_state can return NULL, unless crtc state wasn't\nobtained previously with intel_atomic_get_crtc_state, so we must check it\nfor NULLness here, just as in many other places, where we can't guarantee\nthat intel_atomic_get_crtc_state was called.\nWe are currently getting NULL ptr deref because of that, so this fix was\nconfirmed to help.\n\n(cherry picked from commit 1d5b09f8daf859247a1ea65b0d732a24d88980d8)","publishedAt":"2025-12-09T01:29:48.637Z","updatedAt":"2026-05-11T19:52:25.114Z","severity":null,"assigner":"Linux","products":["Linux Linux"],"affected":[{"vendor":"Linux","product":"Linux","defaultStatus":"unaffected","versions":[{"version":"74a75dc908692dd0548209004e53832c02433c0c","status":"affected","lessThan":"dbf25cc21beff4fd2e730573845a266504b21bb2","versionType":"git"},{"version":"74a75dc908692dd0548209004e53832c02433c0c","status":"affected","lessThan":"8b3c0d2d1685ba40b0af4ee1f8d8824a73870f88","versionType":"git"},{"version":"74a75dc908692dd0548209004e53832c02433c0c","status":"affected","lessThan":"a41d985902c153c31c616fe183cf2ee331e95ecb","versionType":"git"}],"repo":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git","programFiles":["drivers/gpu/drm/i915/display/intel_atomic_plane.c"]},{"vendor":"Linux","product":"Linux","defaultStatus":"affected","versions":[{"version":"5.16","status":"affected"},{"version":"0","status":"unaffected","lessThan":"5.16","versionType":"semver"},{"version":"6.1.30","status":"unaffected","lessThanOrEqual":"6.1.*","versionType":"semver"},{"version":"6.3.4","status":"unaffected","lessThanOrEqual":"6.3.*","versionType":"semver"},{"version":"6.4","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/i915/display/intel_atomic_plane.c"]}],"references":["https://git.kernel.org/stable/c/dbf25cc21beff4fd2e730573845a266504b21bb2","https://git.kernel.org/stable/c/8b3c0d2d1685ba40b0af4ee1f8d8824a73870f88","https://git.kernel.org/stable/c/a41d985902c153c31c616fe183cf2ee331e95ecb"],"weaknesses":[],"ingestedAt":"2026-10-29T20:06:33.064Z","source":{"repository":"CVEProject/cvelistV5","path":"cves/2023/53xxx/CVE-2023-53833.json","commit":"556c9d3a8cd17e218bb8e452ba7cd619a384ff47"},"raw":{"dataType":"CVE_RECORD","dataVersion":"5.2","cveMetadata":{"cveId":"CVE-2023-53833","state":"PUBLISHED","datePublished":"2025-12-09T01:29:48.637Z","dateUpdated":"2026-05-11T19:52:25.114Z","assignerShortName":"Linux","assignerOrgId":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","dateReserved":"2025-12-09T01:27:17.825Z"},"containers":{"cna":{"title":"drm/i915: Fix NULL ptr deref by checking new_crtc_state","descriptions":[{"lang":"en","value":"In the Linux kernel, the following vulnerability has been resolved:\n\ndrm/i915: Fix NULL ptr deref by checking new_crtc_state\n\nintel_atomic_get_new_crtc_state can return NULL, unless crtc state wasn't\nobtained previously with intel_atomic_get_crtc_state, so we must check it\nfor NULLness here, just as in many other places, where we can't guarantee\nthat intel_atomic_get_crtc_state was called.\nWe are currently getting NULL ptr deref because of that, so this fix was\nconfirmed to help.\n\n(cherry picked from commit 1d5b09f8daf859247a1ea65b0d732a24d88980d8)"}],"affected":[{"vendor":"Linux","product":"Linux","defaultStatus":"unaffected","versions":[{"version":"74a75dc908692dd0548209004e53832c02433c0c","status":"affected","lessThan":"dbf25cc21beff4fd2e730573845a266504b21bb2","versionType":"git"},{"version":"74a75dc908692dd0548209004e53832c02433c0c","status":"affected","lessThan":"8b3c0d2d1685ba40b0af4ee1f8d8824a73870f88","versionType":"git"},{"version":"74a75dc908692dd0548209004e53832c02433c0c","status":"affected","lessThan":"a41d985902c153c31c616fe183cf2ee331e95ecb","versionType":"git"}],"repo":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git","programFiles":["drivers/gpu/drm/i915/display/intel_atomic_plane.c"]},{"vendor":"Linux","product":"Linux","defaultStatus":"affected","versions":[{"version":"5.16","status":"affected"},{"version":"0","status":"unaffected","lessThan":"5.16","versionType":"semver"},{"version":"6.1.30","status":"unaffected","lessThanOrEqual":"6.1.*","versionType":"semver"},{"version":"6.3.4","status":"unaffected","lessThanOrEqual":"6.3.*","versionType":"semver"},{"version":"6.4","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/i915/display/intel_atomic_plane.c"]}],"references":[{"url":"https://git.kernel.org/stable/c/dbf25cc21beff4fd2e730573845a266504b21bb2"},{"url":"https://git.kernel.org/stable/c/8b3c0d2d1685ba40b0af4ee1f8d8824a73870f88"},{"url":"https://git.kernel.org/stable/c/a41d985902c153c31c616fe183cf2ee331e95ecb"}],"providerMetadata":{"shortName":"Linux","orgId":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","dateUpdated":"2026-05-11T19:52:25.114Z"},"cpeApplicability":[{"nodes":[{"operator":"OR","negate":false,"cpeMatch":[{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"5.16","versionEndExcluding":"6.1.30"},{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"5.16","versionEndExcluding":"6.3.4"},{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"5.16","versionEndExcluding":"6.4"}]}]}],"x_generator":{"engine":"bippy-1.2.0"}}}}}