{"id":"CVE-2026-43193","state":"PUBLISHED","title":"nfsd: fix nfs4_file refcount leak in nfsd_get_dir_deleg()","description":"In the Linux kernel, the following vulnerability has been resolved:\n\nnfsd: fix nfs4_file refcount leak in nfsd_get_dir_deleg()\n\nClaude pointed out that there is a nfs4_file refcount leak in\nnfsd_get_dir_deleg(). Ensure that the reference to \"fp\" is released\nbefore returning.","publishedAt":"2026-05-06T11:28:01.926Z","updatedAt":"2026-05-11T22:19:38.671Z","severity":null,"assigner":"Linux","products":["Linux Linux"],"affected":[{"vendor":"Linux","product":"Linux","defaultStatus":"unaffected","versions":[{"version":"8b99f6a8c116f664a6788737705f6da2772cc96a","status":"affected","lessThan":"0d8362e15aad5b5c1d6a65bb23ac6c45ccf881f3","versionType":"git"},{"version":"8b99f6a8c116f664a6788737705f6da2772cc96a","status":"affected","lessThan":"789477b849394afdb60507924d65f7ef18f078ce","versionType":"git"}],"repo":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git","programFiles":["fs/nfsd/nfs4state.c"]},{"vendor":"Linux","product":"Linux","defaultStatus":"affected","versions":[{"version":"6.19","status":"affected"},{"version":"0","status":"unaffected","lessThan":"6.19","versionType":"semver"},{"version":"6.19.6","status":"unaffected","lessThanOrEqual":"6.19.*","versionType":"semver"},{"version":"7.0","status":"unaffected","lessThanOrEqual":"*","versionType":"original_commit_for_fix"}],"repo":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git","programFiles":["fs/nfsd/nfs4state.c"]}],"references":["https://git.kernel.org/stable/c/0d8362e15aad5b5c1d6a65bb23ac6c45ccf881f3","https://git.kernel.org/stable/c/789477b849394afdb60507924d65f7ef18f078ce"],"weaknesses":[],"ingestedAt":"2026-10-29T20:11:57.932Z","source":{"repository":"CVEProject/cvelistV5","path":"cves/2026/43xxx/CVE-2026-43193.json","commit":"556c9d3a8cd17e218bb8e452ba7cd619a384ff47"},"raw":{"dataType":"CVE_RECORD","dataVersion":"5.2","cveMetadata":{"cveId":"CVE-2026-43193","state":"PUBLISHED","datePublished":"2026-05-06T11:28:01.926Z","dateUpdated":"2026-05-11T22:19:38.671Z","assignerShortName":"Linux","assignerOrgId":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","dateReserved":"2026-05-01T14:12:55.992Z"},"containers":{"cna":{"title":"nfsd: fix nfs4_file refcount leak in nfsd_get_dir_deleg()","descriptions":[{"lang":"en","value":"In the Linux kernel, the following vulnerability has been resolved:\n\nnfsd: fix nfs4_file refcount leak in nfsd_get_dir_deleg()\n\nClaude pointed out that there is a nfs4_file refcount leak in\nnfsd_get_dir_deleg(). Ensure that the reference to \"fp\" is released\nbefore returning."}],"affected":[{"vendor":"Linux","product":"Linux","defaultStatus":"unaffected","versions":[{"version":"8b99f6a8c116f664a6788737705f6da2772cc96a","status":"affected","lessThan":"0d8362e15aad5b5c1d6a65bb23ac6c45ccf881f3","versionType":"git"},{"version":"8b99f6a8c116f664a6788737705f6da2772cc96a","status":"affected","lessThan":"789477b849394afdb60507924d65f7ef18f078ce","versionType":"git"}],"repo":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git","programFiles":["fs/nfsd/nfs4state.c"]},{"vendor":"Linux","product":"Linux","defaultStatus":"affected","versions":[{"version":"6.19","status":"affected"},{"version":"0","status":"unaffected","lessThan":"6.19","versionType":"semver"},{"version":"6.19.6","status":"unaffected","lessThanOrEqual":"6.19.*","versionType":"semver"},{"version":"7.0","status":"unaffected","lessThanOrEqual":"*","versionType":"original_commit_for_fix"}],"repo":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git","programFiles":["fs/nfsd/nfs4state.c"]}],"references":[{"url":"https://git.kernel.org/stable/c/0d8362e15aad5b5c1d6a65bb23ac6c45ccf881f3"},{"url":"https://git.kernel.org/stable/c/789477b849394afdb60507924d65f7ef18f078ce"}],"providerMetadata":{"shortName":"Linux","orgId":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","dateUpdated":"2026-05-11T22:19:38.671Z"},"cpeApplicability":[{"nodes":[{"operator":"OR","negate":false,"cpeMatch":[{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"6.19","versionEndExcluding":"6.19.6"},{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"6.19","versionEndExcluding":"7.0"}]}]}],"x_generator":{"engine":"bippy-1.2.0"}}}}}