{"id":"CVE-2025-68196","state":"PUBLISHED","title":"drm/amd/display: Cache streams targeting link when performing LT automation","description":"In the Linux kernel, the following vulnerability has been resolved:\n\ndrm/amd/display: Cache streams targeting link when performing LT automation\n\n[WHY]\nLast LT automation update can cause crash by referencing current_state and\ncalling into dc_update_planes_and_stream which may clobber current_state.\n\n[HOW]\nCache relevant stream pointers and iterate through them instead of relying\non the current_state.","publishedAt":"2025-12-16T13:43:22.553Z","updatedAt":"2026-05-11T21:48:31.295Z","severity":null,"assigner":"Linux","products":["Linux Linux"],"affected":[{"vendor":"Linux","product":"Linux","defaultStatus":"unaffected","versions":[{"version":"9c6669c2e21a2d9b3f3857883c715a302ae64ac0","status":"affected","lessThan":"9ecd238e8230e83a5c5436fd2261da4518f5c979","versionType":"git"},{"version":"9c6669c2e21a2d9b3f3857883c715a302ae64ac0","status":"affected","lessThan":"f5b69101f956f5b89605a13cb15f093a7906f2a1","versionType":"git"}],"repo":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git","programFiles":["drivers/gpu/drm/amd/display/dc/link/accessories/link_dp_cts.c"]},{"vendor":"Linux","product":"Linux","defaultStatus":"affected","versions":[{"version":"6.17","status":"affected"},{"version":"0","status":"unaffected","lessThan":"6.17","versionType":"semver"},{"version":"6.17.8","status":"unaffected","lessThanOrEqual":"6.17.*","versionType":"semver"},{"version":"6.18","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/amd/display/dc/link/accessories/link_dp_cts.c"]}],"references":["https://git.kernel.org/stable/c/9ecd238e8230e83a5c5436fd2261da4518f5c979","https://git.kernel.org/stable/c/f5b69101f956f5b89605a13cb15f093a7906f2a1"],"weaknesses":[],"ingestedAt":"2026-10-29T20:09:56.034Z","source":{"repository":"CVEProject/cvelistV5","path":"cves/2025/68xxx/CVE-2025-68196.json","commit":"556c9d3a8cd17e218bb8e452ba7cd619a384ff47"},"raw":{"dataType":"CVE_RECORD","dataVersion":"5.2","cveMetadata":{"cveId":"CVE-2025-68196","state":"PUBLISHED","datePublished":"2025-12-16T13:43:22.553Z","dateUpdated":"2026-05-11T21:48:31.295Z","assignerShortName":"Linux","assignerOrgId":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","dateReserved":"2025-12-16T13:41:40.253Z"},"containers":{"cna":{"title":"drm/amd/display: Cache streams targeting link when performing LT automation","descriptions":[{"lang":"en","value":"In the Linux kernel, the following vulnerability has been resolved:\n\ndrm/amd/display: Cache streams targeting link when performing LT automation\n\n[WHY]\nLast LT automation update can cause crash by referencing current_state and\ncalling into dc_update_planes_and_stream which may clobber current_state.\n\n[HOW]\nCache relevant stream pointers and iterate through them instead of relying\non the current_state."}],"affected":[{"vendor":"Linux","product":"Linux","defaultStatus":"unaffected","versions":[{"version":"9c6669c2e21a2d9b3f3857883c715a302ae64ac0","status":"affected","lessThan":"9ecd238e8230e83a5c5436fd2261da4518f5c979","versionType":"git"},{"version":"9c6669c2e21a2d9b3f3857883c715a302ae64ac0","status":"affected","lessThan":"f5b69101f956f5b89605a13cb15f093a7906f2a1","versionType":"git"}],"repo":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git","programFiles":["drivers/gpu/drm/amd/display/dc/link/accessories/link_dp_cts.c"]},{"vendor":"Linux","product":"Linux","defaultStatus":"affected","versions":[{"version":"6.17","status":"affected"},{"version":"0","status":"unaffected","lessThan":"6.17","versionType":"semver"},{"version":"6.17.8","status":"unaffected","lessThanOrEqual":"6.17.*","versionType":"semver"},{"version":"6.18","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/amd/display/dc/link/accessories/link_dp_cts.c"]}],"references":[{"url":"https://git.kernel.org/stable/c/9ecd238e8230e83a5c5436fd2261da4518f5c979"},{"url":"https://git.kernel.org/stable/c/f5b69101f956f5b89605a13cb15f093a7906f2a1"}],"providerMetadata":{"shortName":"Linux","orgId":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","dateUpdated":"2026-05-11T21:48:31.295Z"},"cpeApplicability":[{"nodes":[{"operator":"OR","negate":false,"cpeMatch":[{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"6.17","versionEndExcluding":"6.17.8"},{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"6.17","versionEndExcluding":"6.18"}]}]}],"x_generator":{"engine":"bippy-1.2.0"}}}}}