CVE-2026-89800

{"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": "2026-10-19T08:52:54.946Z"}, "containers": {"cna": {"providerMetadata": {"orgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "shortName": "Linux", "dateUpdated": "2026-10-19T08:52:54.946Z"}, "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", "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"}]}]}], "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"}}}}

{}

{"affected": [{"affectedData": [{"defaultStatus": "unaffected", "product": "Linux", "programFiles": ["drivers/gpu/drm/nouveau/nouveau_uvmm.c"], "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git", "vendor": "Linux", "versions": [{"lessThan": "a129b2b875c148aba233ace8447a0c36ca3bae07", "status": "affected", "version": "b88baab828713ce0b49b185444b2ee83bed373a8", "versionType": "git"}, {"lessThan": "196ce9e5e93202da097062be24e404984dbc5ac2", "status": "affected", "version": "b88baab828713ce0b49b185444b2ee83bed373a8", "versionType": "git"}, {"lessThan": "1101cbfe7f342e5eaaf7444965d4f1215abdac4c", "status": "affected", "version": "b88baab828713ce0b49b185444b2ee83bed373a8", "versionType": "git"}, {"lessThan": "c60033c172420179b7bbb3d1f843f8dc90164dc5", "status": "affected", "version": "b88baab828713ce0b49b185444b2ee83bed373a8", "versionType": "git"}, {"lessThan": "38a62306c4266bcb3cd89e33c7111ee33096ebb3", "status": "affected", "version": "b88baab828713ce0b49b185444b2ee83bed373a8", "versionType": "git"}]}, {"defaultStatus": "affected", "product": "Linux", "programFiles": ["drivers/gpu/drm/nouveau/nouveau_uvmm.c"], "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git", "vendor": "Linux", "versions": [{"status": "affected", "version": "6.6"}, {"lessThan": "6.6", "status": "unaffected", "version": "0", "versionType": "semver"}, {"lessThanOrEqual": "6.6.*", "status": "unaffected", "version": "6.6.157", "versionType": "semver"}, {"lessThanOrEqual": "6.12.*", "status": "unaffected", "version": "6.12.110", "versionType": "semver"}, {"lessThanOrEqual": "6.18.*", "status": "unaffected", "version": "6.18.51", "versionType": "semver"}, {"lessThanOrEqual": "7.2.*", "status": "unaffected", "version": "7.2.5", "versionType": "semver"}, {"lessThanOrEqual": "*", "status": "unaffected", "version": "7.3", "versionType": "original_commit_for_fix"}]}], "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67"}], "cveTags": [], "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."}], "id": "CVE-2026-89800", "lastModified": "2026-10-19T09:18:23.787", "metrics": {}, "published": "2026-09-16T11:16:44.877", "references": [{"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "url": "https://git.kernel.org/stable/c/1101cbfe7f342e5eaaf7444965d4f1215abdac4c"}, {"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "url": "https://git.kernel.org/stable/c/196ce9e5e93202da097062be24e404984dbc5ac2"}, {"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "url": "https://git.kernel.org/stable/c/38a62306c4266bcb3cd89e33c7111ee33096ebb3"}, {"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "url": "https://git.kernel.org/stable/c/a129b2b875c148aba233ace8447a0c36ca3bae07"}, {"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "url": "https://git.kernel.org/stable/c/c60033c172420179b7bbb3d1f843f8dc90164dc5"}], "sourceIdentifier": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "vulnStatus": "Received"}

{}

{"affected": [{"configurations": [{"platform": null, "status": "affected", "versions": {"scheme": "code_commit", "value": "[b88baab828713ce0b49b185444b2ee83bed373a8,a129b2b875c148aba233ace8447a0c36ca3bae07)"}}, {"platform": null, "status": "affected", "versions": {"scheme": "code_commit", "value": "[b88baab828713ce0b49b185444b2ee83bed373a8,196ce9e5e93202da097062be24e404984dbc5ac2)"}}, {"platform": null, "status": "affected", "versions": {"scheme": "code_commit", "value": "[b88baab828713ce0b49b185444b2ee83bed373a8,1101cbfe7f342e5eaaf7444965d4f1215abdac4c)"}}, {"platform": null, "status": "affected", "versions": {"scheme": "code_commit", "value": "[b88baab828713ce0b49b185444b2ee83bed373a8,c60033c172420179b7bbb3d1f843f8dc90164dc5)"}}, {"platform": null, "status": "affected", "versions": {"scheme": "code_commit", "value": "[b88baab828713ce0b49b185444b2ee83bed373a8,38a62306c4266bcb3cd89e33c7111ee33096ebb3)"}}], "enrichment": {"confidence": 99.0, "confidence_source": "inferred", "scores": [{"score": 99.0, "source": "inferred"}, {"score": 100.0, "source": "matching"}]}, "original": {"product": "Linux", "source": "cna", "vendor": "Linux"}, "product": "linux_kernel", "vendor": "linux"}, {"configurations": [{"platform": null, "status": "affected", "versions": {"scheme": "generic", "value": "[6.6,6.6]"}}, {"platform": null, "status": "unaffected", "versions": {"scheme": "generic", "value": "[0,6.6)"}}, {"platform": null, "status": "unaffected", "versions": {"scheme": "semver", "value": "[6.6.157,6.7.0)"}}, {"platform": null, "status": "unaffected", "versions": {"scheme": "semver", "value": "[6.12.110,6.13.0)"}}, {"platform": null, "status": "unaffected", "versions": {"scheme": "semver", "value": "[6.18.51,6.19.0)"}}, {"platform": null, "status": "unaffected", "versions": {"scheme": "semver", "value": "[7.2.5,7.3.0)"}}, {"platform": null, "status": "unaffected", "versions": {"scheme": "generic", "value": "[7.3-rc2,*]"}}], "enrichment": {"confidence": 99.0, "confidence_source": "inferred", "scores": [{"score": 99.0, "source": "inferred"}, {"score": 100.0, "source": "matching"}]}, "original": {"product": "Linux", "source": "cna", "vendor": "Linux"}, "product": "linux_kernel", "vendor": "linux"}], "created": "2026-09-18T09:30:05.994935+00:00", "updated": "2026-09-18T10:15:06.439691+00:00", "vendors": ["linux", "linux$PRODUCT$linux_kernel"], "weaknesses": ["CWE-1128", "CWE-762"]}