{"id":"CVE-2026-52949","state":"PUBLISHED","title":"drm/ttm: Fix ttm_bo_shrink() infinite LRU walk on backup failure","description":"In the Linux kernel, the following vulnerability has been resolved:\n\ndrm/ttm: Fix ttm_bo_shrink() infinite LRU walk on backup failure\n\nApply the same fix as b2ed01e7ad (\"drm/ttm: Fix ttm_bo_swapout()\ninfinite LRU walk on swapout failure\") to the ttm_bo_shrink() path.\n\nMove del_bulk_move from before the backup to after success only,\nusing ttm_resource_del_bulk_move_unevictable() since the resource\nis now unevictable once fully backed up.","publishedAt":"2026-06-24T16:28:32.684Z","updatedAt":"2026-10-15T10:07:31.247Z","severity":null,"assigner":"Linux","products":["Linux Linux"],"affected":[{"vendor":"Linux","product":"Linux","defaultStatus":"unaffected","versions":[{"version":"70d645deac98303d1bf9ab08a4e68da52bf8c1e1","status":"affected","lessThan":"d0ce7b07dafe43d78150f90894027746576d7cb7","versionType":"git"},{"version":"70d645deac98303d1bf9ab08a4e68da52bf8c1e1","status":"affected","lessThan":"9402ad98a047dd9894ec868a7df5ad9bd03327d3","versionType":"git"},{"version":"70d645deac98303d1bf9ab08a4e68da52bf8c1e1","status":"affected","lessThan":"1d59f36e95f7f7134db0e313c9d787cb0adb2153","versionType":"git"}],"repo":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git","programFiles":["drivers/gpu/drm/ttm/ttm_bo_util.c"]},{"vendor":"Linux","product":"Linux","defaultStatus":"affected","versions":[{"version":"6.15","status":"affected"},{"version":"0","status":"unaffected","lessThan":"6.15","versionType":"semver"},{"version":"6.18.57","status":"unaffected","lessThanOrEqual":"6.18.*","versionType":"semver"},{"version":"7.0.10","status":"unaffected","lessThanOrEqual":"7.0.*","versionType":"semver"},{"version":"7.1","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/ttm/ttm_bo_util.c"]}],"references":["https://git.kernel.org/stable/c/d0ce7b07dafe43d78150f90894027746576d7cb7","https://git.kernel.org/stable/c/9402ad98a047dd9894ec868a7df5ad9bd03327d3","https://git.kernel.org/stable/c/1d59f36e95f7f7134db0e313c9d787cb0adb2153"],"weaknesses":[],"ingestedAt":"2026-10-29T20:12:16.098Z","source":{"repository":"CVEProject/cvelistV5","path":"cves/2026/52xxx/CVE-2026-52949.json","commit":"556c9d3a8cd17e218bb8e452ba7cd619a384ff47"},"raw":{"dataType":"CVE_RECORD","dataVersion":"5.2","cveMetadata":{"cveId":"CVE-2026-52949","state":"PUBLISHED","datePublished":"2026-06-24T16:28:32.684Z","dateUpdated":"2026-10-15T10:07:31.247Z","assignerShortName":"Linux","assignerOrgId":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","dateReserved":"2026-06-09T07:44:35.371Z"},"containers":{"cna":{"title":"drm/ttm: Fix ttm_bo_shrink() infinite LRU walk on backup failure","descriptions":[{"lang":"en","value":"In the Linux kernel, the following vulnerability has been resolved:\n\ndrm/ttm: Fix ttm_bo_shrink() infinite LRU walk on backup failure\n\nApply the same fix as b2ed01e7ad (\"drm/ttm: Fix ttm_bo_swapout()\ninfinite LRU walk on swapout failure\") to the ttm_bo_shrink() path.\n\nMove del_bulk_move from before the backup to after success only,\nusing ttm_resource_del_bulk_move_unevictable() since the resource\nis now unevictable once fully backed up."}],"affected":[{"vendor":"Linux","product":"Linux","defaultStatus":"unaffected","versions":[{"version":"70d645deac98303d1bf9ab08a4e68da52bf8c1e1","status":"affected","lessThan":"d0ce7b07dafe43d78150f90894027746576d7cb7","versionType":"git"},{"version":"70d645deac98303d1bf9ab08a4e68da52bf8c1e1","status":"affected","lessThan":"9402ad98a047dd9894ec868a7df5ad9bd03327d3","versionType":"git"},{"version":"70d645deac98303d1bf9ab08a4e68da52bf8c1e1","status":"affected","lessThan":"1d59f36e95f7f7134db0e313c9d787cb0adb2153","versionType":"git"}],"repo":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git","programFiles":["drivers/gpu/drm/ttm/ttm_bo_util.c"]},{"vendor":"Linux","product":"Linux","defaultStatus":"affected","versions":[{"version":"6.15","status":"affected"},{"version":"0","status":"unaffected","lessThan":"6.15","versionType":"semver"},{"version":"6.18.57","status":"unaffected","lessThanOrEqual":"6.18.*","versionType":"semver"},{"version":"7.0.10","status":"unaffected","lessThanOrEqual":"7.0.*","versionType":"semver"},{"version":"7.1","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/ttm/ttm_bo_util.c"]}],"references":[{"url":"https://git.kernel.org/stable/c/d0ce7b07dafe43d78150f90894027746576d7cb7"},{"url":"https://git.kernel.org/stable/c/9402ad98a047dd9894ec868a7df5ad9bd03327d3"},{"url":"https://git.kernel.org/stable/c/1d59f36e95f7f7134db0e313c9d787cb0adb2153"}],"providerMetadata":{"shortName":"Linux","orgId":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","dateUpdated":"2026-10-15T10:07:31.247Z"},"cpeApplicability":[{"nodes":[{"operator":"OR","negate":false,"cpeMatch":[{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"6.15","versionEndExcluding":"6.18.57"},{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"6.15","versionEndExcluding":"7.0.10"},{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"6.15","versionEndExcluding":"7.1"}]}]}],"x_generator":{"engine":"bippy-1.2.0"}}}}}