{"dataType":"CVE_RECORD","dataVersion":"5.2","cveMetadata":{"cveId":"CVE-2026-89800","assignerOrgId":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","state":"PUBLISHED","assignerShortName":"Linux","dateReserved":"2026-09-11T19:38:34.767Z","datePublished":"2026-09-16T10:30:33.097Z","dateUpdated":"2026-09-16T10:30:33.097Z"},"containers":{"cna":{"providerMetadata":{"orgId":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","shortName":"Linux","dateUpdated":"2026-09-16T10:30:33.097Z"},"descriptions":[{"lang":"en","value":"In the Linux kernel, the following vulnerability has been resolved:\n\ndrm/nouveau/uvmm: clear the dirty flag when unwinding an OP_UNMAP_SPARSE\n\nA successful OP_UNMAP_SPARSE marks its region dirty with\nnouveau_uvma_region_dirty() and defers the teardown to\nnouveau_uvmm_bind_job_cleanup(); it does not remove the region from\nuvmm->region_mt.\n\nIf a later op in the job fails, the unwind path never clears reg->dirty\n(set in one place, cleared nowhere) and sets op->reg = NULL, so cleanup\nskips the teardown. The region is left in the tree with dirty set and its\ncompletion never signalled. Later binds over that range then fail\npermanently -- -ENOENT or -EINVAL from the dirty checks, or an unkillable\nwait_for_completion() in bind_validate_region() -- for the lifetime of\nthe uvmm.\n\nClear reg->dirty when the unwind reverts the sparse unmap, restoring the\nregion to the state it was found in."}],"affected":[{"product":"Linux","vendor":"Linux","defaultStatus":"unaffected","repo":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git","programFiles":["drivers/gpu/drm/nouveau/nouveau_uvmm.c"],"versions":[{"version":"b88baab828713ce0b49b185444b2ee83bed373a8","lessThan":"a129b2b875c148aba233ace8447a0c36ca3bae07","status":"affected","versionType":"git"},{"version":"b88baab828713ce0b49b185444b2ee83bed373a8","lessThan":"196ce9e5e93202da097062be24e404984dbc5ac2","status":"affected","versionType":"git"},{"version":"b88baab828713ce0b49b185444b2ee83bed373a8","lessThan":"1101cbfe7f342e5eaaf7444965d4f1215abdac4c","status":"affected","versionType":"git"},{"version":"b88baab828713ce0b49b185444b2ee83bed373a8","lessThan":"c60033c172420179b7bbb3d1f843f8dc90164dc5","status":"affected","versionType":"git"},{"version":"b88baab828713ce0b49b185444b2ee83bed373a8","lessThan":"38a62306c4266bcb3cd89e33c7111ee33096ebb3","status":"affected","versionType":"git"}]},{"product":"Linux","vendor":"Linux","defaultStatus":"affected","repo":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git","programFiles":["drivers/gpu/drm/nouveau/nouveau_uvmm.c"],"versions":[{"version":"6.6","status":"affected"},{"version":"0","lessThan":"6.6","status":"unaffected","versionType":"semver"},{"version":"6.6.157","lessThanOrEqual":"6.6.*","status":"unaffected","versionType":"semver"},{"version":"6.12.110","lessThanOrEqual":"6.12.*","status":"unaffected","versionType":"semver"},{"version":"6.18.51","lessThanOrEqual":"6.18.*","status":"unaffected","versionType":"semver"},{"version":"7.2.5","lessThanOrEqual":"7.2.*","status":"unaffected","versionType":"semver"},{"version":"7.3-rc2","lessThanOrEqual":"*","status":"unaffected","versionType":"original_commit_for_fix"}]}],"cpeApplicability":[{"nodes":[{"operator":"OR","negate":false,"cpeMatch":[{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"6.6","versionEndExcluding":"6.6.157"},{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"6.6","versionEndExcluding":"6.12.110"},{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"6.6","versionEndExcluding":"6.18.51"},{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"6.6","versionEndExcluding":"7.2.5"},{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"6.6","versionEndExcluding":"7.3-rc2"}]}]}],"references":[{"url":"https://git.kernel.org/stable/c/a129b2b875c148aba233ace8447a0c36ca3bae07"},{"url":"https://git.kernel.org/stable/c/196ce9e5e93202da097062be24e404984dbc5ac2"},{"url":"https://git.kernel.org/stable/c/1101cbfe7f342e5eaaf7444965d4f1215abdac4c"},{"url":"https://git.kernel.org/stable/c/c60033c172420179b7bbb3d1f843f8dc90164dc5"},{"url":"https://git.kernel.org/stable/c/38a62306c4266bcb3cd89e33c7111ee33096ebb3"}],"title":"drm/nouveau/uvmm: clear the dirty flag when unwinding an OP_UNMAP_SPARSE","x_generator":{"engine":"bippy-1.2.0"}}}}