{"dataType": "CVE_RECORD", "dataVersion": "5.2", "cveMetadata": {"cveId": "CVE-2026-43470", "assignerOrgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "state": "PUBLISHED", "assignerShortName": "Linux", "dateReserved": "2026-05-01T14:12:56.011Z", "datePublished": "2026-05-08T14:22:30.218Z", "dateUpdated": "2026-05-08T14:22:30.218Z"}, "containers": {"cna": {"providerMetadata": {"orgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "shortName": "Linux", "dateUpdated": "2026-05-08T14:22:30.218Z"}, "descriptions": [{"lang": "en", "value": "In the Linux kernel, the following vulnerability has been resolved:\n\nnfs: return EISDIR on nfs3_proc_create if d_alias is a dir\n\nIf we found an alias through nfs3_do_create/nfs_add_or_obtain\n/d_splice_alias which happens to be a dir dentry, we don't return\nany error, and simply forget about this alias, but the original\ndentry we were adding and passed as parameter remains negative.\n\nThis later causes an oops on nfs_atomic_open_v23/finish_open since we\nsupply a negative dentry to do_dentry_open.\n\nThis has been observed running lustre-racer, where dirs and files are\ncreated/removed concurrently with the same name and O_EXCL is not\nused to open files (frequent file redirection).\n\nWhile d_splice_alias typically returns a directory alias or NULL, we\nexplicitly check d_is_dir() to ensure that we don't attempt to perform\nfile operations (like finish_open) on a directory inode, which triggers\nthe observed oops."}], "affected": [{"product": "Linux", "vendor": "Linux", "defaultStatus": "unaffected", "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git", "programFiles": ["fs/nfs/nfs3proc.c"], "versions": [{"version": "7c6c5249f061b64fc6b5b90bc147169a048691bf", "lessThan": "7e2963773760a664684435201960dd2fb712f1b5", "status": "affected", "versionType": "git"}, {"version": "7c6c5249f061b64fc6b5b90bc147169a048691bf", "lessThan": "203c792cb4315360d49973ae2e57feeb6d3dcf7e", "status": "affected", "versionType": "git"}, {"version": "7c6c5249f061b64fc6b5b90bc147169a048691bf", "lessThan": "9ee1770fcb2f1b48354622b926e7dc10222805f5", "status": "affected", "versionType": "git"}, {"version": "7c6c5249f061b64fc6b5b90bc147169a048691bf", "lessThan": "410666a298c34ebd57256fde6b24c96bd23059a2", "status": "affected", "versionType": "git"}]}, {"product": "Linux", "vendor": "Linux", "defaultStatus": "affected", "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git", "programFiles": ["fs/nfs/nfs3proc.c"], "versions": [{"version": "6.10", "status": "affected"}, {"version": "0", "lessThan": "6.10", "status": "unaffected", "versionType": "semver"}, {"version": "6.12.78", "lessThanOrEqual": "6.12.*", "status": "unaffected", "versionType": "semver"}, {"version": "6.18.19", "lessThanOrEqual": "6.18.*", "status": "unaffected", "versionType": "semver"}, {"version": "6.19.9", "lessThanOrEqual": "6.19.*", "status": "unaffected", "versionType": "semver"}, {"version": "7.0", "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": "6.10", "versionEndExcluding": "6.12.78"}, {"vulnerable": true, "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "versionStartIncluding": "6.10", "versionEndExcluding": "6.18.19"}, {"vulnerable": true, "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "versionStartIncluding": "6.10", "versionEndExcluding": "6.19.9"}, {"vulnerable": true, "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "versionStartIncluding": "6.10", "versionEndExcluding": "7.0"}]}]}], "references": [{"url": "https://git.kernel.org/stable/c/7e2963773760a664684435201960dd2fb712f1b5"}, {"url": "https://git.kernel.org/stable/c/203c792cb4315360d49973ae2e57feeb6d3dcf7e"}, {"url": "https://git.kernel.org/stable/c/9ee1770fcb2f1b48354622b926e7dc10222805f5"}, {"url": "https://git.kernel.org/stable/c/410666a298c34ebd57256fde6b24c96bd23059a2"}], "title": "nfs: return EISDIR on nfs3_proc_create if d_alias is a dir", "x_generator": {"engine": "bippy-1.2.0"}}}}

{}

{"cveTags": [], "descriptions": [{"lang": "en", "value": "In the Linux kernel, the following vulnerability has been resolved:\n\nnfs: return EISDIR on nfs3_proc_create if d_alias is a dir\n\nIf we found an alias through nfs3_do_create/nfs_add_or_obtain\n/d_splice_alias which happens to be a dir dentry, we don't return\nany error, and simply forget about this alias, but the original\ndentry we were adding and passed as parameter remains negative.\n\nThis later causes an oops on nfs_atomic_open_v23/finish_open since we\nsupply a negative dentry to do_dentry_open.\n\nThis has been observed running lustre-racer, where dirs and files are\ncreated/removed concurrently with the same name and O_EXCL is not\nused to open files (frequent file redirection).\n\nWhile d_splice_alias typically returns a directory alias or NULL, we\nexplicitly check d_is_dir() to ensure that we don't attempt to perform\nfile operations (like finish_open) on a directory inode, which triggers\nthe observed oops."}], "id": "CVE-2026-43470", "lastModified": "2026-05-08T15:17:00.090", "metrics": {}, "published": "2026-05-08T15:17:00.090", "references": [{"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "url": "https://git.kernel.org/stable/c/203c792cb4315360d49973ae2e57feeb6d3dcf7e"}, {"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "url": "https://git.kernel.org/stable/c/410666a298c34ebd57256fde6b24c96bd23059a2"}, {"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "url": "https://git.kernel.org/stable/c/7e2963773760a664684435201960dd2fb712f1b5"}, {"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "url": "https://git.kernel.org/stable/c/9ee1770fcb2f1b48354622b926e7dc10222805f5"}], "sourceIdentifier": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "vulnStatus": "Received"}

{}

{"affected": [{"configurations": [{"platform": null, "status": "affected", "versions": {"scheme": "code_commit", "value": "[7c6c5249f061b64fc6b5b90bc147169a048691bf,7e2963773760a664684435201960dd2fb712f1b5)"}}, {"platform": null, "status": "affected", "versions": {"scheme": "code_commit", "value": "[7c6c5249f061b64fc6b5b90bc147169a048691bf,203c792cb4315360d49973ae2e57feeb6d3dcf7e)"}}, {"platform": null, "status": "affected", "versions": {"scheme": "code_commit", "value": "[7c6c5249f061b64fc6b5b90bc147169a048691bf,9ee1770fcb2f1b48354622b926e7dc10222805f5)"}}, {"platform": null, "status": "affected", "versions": {"scheme": "code_commit", "value": "[7c6c5249f061b64fc6b5b90bc147169a048691bf,410666a298c34ebd57256fde6b24c96bd23059a2)"}}], "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": "semver", "value": "6.10"}}, {"platform": null, "status": "unaffected", "versions": {"scheme": "semver", "value": "[0,6.10)"}}, {"platform": null, "status": "unaffected", "versions": {"scheme": "semver", "value": "[6.12.78,7.0.0)"}}, {"platform": null, "status": "unaffected", "versions": {"scheme": "semver", "value": "[6.18.19,7.0.0)"}}, {"platform": null, "status": "unaffected", "versions": {"scheme": "semver", "value": "[6.19.9,7.0.0)"}}, {"platform": null, "status": "unaffected", "versions": {"scheme": "generic", "value": "[7.0,*]"}}], "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": "2026-05-08T20:30:15.761244+00:00", "updated": "2026-05-08T20:45:16.334352+00:00", "vendors": ["linux", "linux$PRODUCT$linux_kernel"], "weaknesses": ["CWE-398", "CWE-665"]}