CVE-2026-89694

{"id": "CVE-2026-89694", "cveTags": [], "metrics": {}, "affected": [{"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "affectedData": [{"repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git", "vendor": "Linux", "product": "Linux", "versions": [{"status": "affected", "version": "ce0887ac96d35c7105090e166bb0807dc0a0e838", "lessThan": "88daaed26e17e1c7e851859b5bbb4f0e1ab6d0e9", "versionType": "git"}, {"status": "affected", "version": "ce0887ac96d35c7105090e166bb0807dc0a0e838", "lessThan": "81b2cfe767943922eca906a2a5af23a0ce5d0f35", "versionType": "git"}, {"status": "affected", "version": "ce0887ac96d35c7105090e166bb0807dc0a0e838", "lessThan": "6bba72b8ee68ad631b94bd439592cba46de54d7d", "versionType": "git"}, {"status": "affected", "version": "ce0887ac96d35c7105090e166bb0807dc0a0e838", "lessThan": "75268f6cfe26b09a7e4d3216367e87fe9e2a26aa", "versionType": "git"}, {"status": "affected", "version": "ce0887ac96d35c7105090e166bb0807dc0a0e838", "lessThan": "b1eca07303594ca27f5dc360a6946bd7e1f5b04c", "versionType": "git"}, {"status": "affected", "version": "ce0887ac96d35c7105090e166bb0807dc0a0e838", "lessThan": "b42dc26a14b4ad5d6daaada11ec4c70744141c25", "versionType": "git"}, {"status": "affected", "version": "ce0887ac96d35c7105090e166bb0807dc0a0e838", "lessThan": "d801906165cb5cc250d5cbe44935594e170be3e2", "versionType": "git"}, {"status": "affected", "version": "ce0887ac96d35c7105090e166bb0807dc0a0e838", "lessThan": "6bdbfab96e0cf25e5f57dac5c09dc1749751a4bf", "versionType": "git"}], "programFiles": ["fs/nfsd/nfs4state.c"], "defaultStatus": "unaffected"}, {"repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git", "vendor": "Linux", "product": "Linux", "versions": [{"status": "affected", "version": "5.6"}, {"status": "unaffected", "version": "0", "lessThan": "5.6", "versionType": "semver"}, {"status": "unaffected", "version": "5.10.270", "versionType": "semver", "lessThanOrEqual": "5.10.*"}, {"status": "unaffected", "version": "5.15.221", "versionType": "semver", "lessThanOrEqual": "5.15.*"}, {"status": "unaffected", "version": "6.1.188", "versionType": "semver", "lessThanOrEqual": "6.1.*"}, {"status": "unaffected", "version": "6.6.157", "versionType": "semver", "lessThanOrEqual": "6.6.*"}, {"status": "unaffected", "version": "6.12.109", "versionType": "semver", "lessThanOrEqual": "6.12.*"}, {"status": "unaffected", "version": "6.18.50", "versionType": "semver", "lessThanOrEqual": "6.18.*"}, {"status": "unaffected", "version": "7.2.4", "versionType": "semver", "lessThanOrEqual": "7.2.*"}, {"status": "unaffected", "version": "7.3-rc1", "versionType": "original_commit_for_fix", "lessThanOrEqual": "*"}], "programFiles": ["fs/nfsd/nfs4state.c"], "defaultStatus": "affected"}]}], "published": "2026-09-11T20:19:56.490", "references": [{"url": "https://git.kernel.org/stable/c/6bba72b8ee68ad631b94bd439592cba46de54d7d", "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67"}, {"url": "https://git.kernel.org/stable/c/6bdbfab96e0cf25e5f57dac5c09dc1749751a4bf", "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67"}, {"url": "https://git.kernel.org/stable/c/75268f6cfe26b09a7e4d3216367e87fe9e2a26aa", "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67"}, {"url": "https://git.kernel.org/stable/c/81b2cfe767943922eca906a2a5af23a0ce5d0f35", "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67"}, {"url": "https://git.kernel.org/stable/c/88daaed26e17e1c7e851859b5bbb4f0e1ab6d0e9", "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67"}, {"url": "https://git.kernel.org/stable/c/b1eca07303594ca27f5dc360a6946bd7e1f5b04c", "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67"}, {"url": "https://git.kernel.org/stable/c/b42dc26a14b4ad5d6daaada11ec4c70744141c25", "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67"}, {"url": "https://git.kernel.org/stable/c/d801906165cb5cc250d5cbe44935594e170be3e2", "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67"}], "vulnStatus": "Received", "descriptions": [{"lang": "en", "value": "In the Linux kernel, the following vulnerability has been resolved:\n\nnfsd: check client ownership when cancelling a copy-notify stateid\n\nOn the OFFLOAD_CANCEL path (clp != NULL), manage_cpntf_state() freed the\ntarget cpntf state without checking ownership. The lookup key\nst->si_opaque.so_id is allocated cyclically (guessable) and the embedded\nclientid is the fixed per-net nn->s2s_cp_cl_id, so any authenticated\nNFSv4.2 client could cancel and free another client's copy-notify\nstateid.\n\nCompare the creating clientid recorded in state->cp_p_clid against the\nrequesting client's cl_clientid and return nfserr_bad_stateid on a\nmismatch instead of freeing the entry."}], "lastModified": "2026-09-14T13:19:19.767", "sourceIdentifier": "416baaa9-dc9f-4396-8d5f-8c081fb06d67"}