{"id":"CVE-2026-43394","state":"PUBLISHED","title":"nfsd: Fix cred ref leak in nfsd_nl_listener_set_doit().","description":"In the Linux kernel, the following vulnerability has been resolved:\n\nnfsd: Fix cred ref leak in nfsd_nl_listener_set_doit().\n\nnfsd_nl_listener_set_doit() uses get_current_cred() without\nput_cred().\n\nAs we can see from other callers, svc_xprt_create_from_sa()\ndoes not require the extra refcount.\n\nnfsd_nl_listener_set_doit() is always in the process context,\nsendmsg(), and current->cred does not go away.\n\nLet's use current_cred() in nfsd_nl_listener_set_doit().","publishedAt":"2026-05-08T14:21:38.127Z","updatedAt":"2026-05-11T22:23:44.189Z","severity":null,"assigner":"Linux","products":["Linux Linux"],"affected":[{"vendor":"Linux","product":"Linux","defaultStatus":"unaffected","versions":[{"version":"16a471177496c8e04a9793812c187a2c1a2192fa","status":"affected","lessThan":"02e87ec0bc706cb93fa47b43d18c4d10102c7d54","versionType":"git"},{"version":"16a471177496c8e04a9793812c187a2c1a2192fa","status":"affected","lessThan":"019debe5851d7355bea9ff0248cc317878924d8f","versionType":"git"},{"version":"16a471177496c8e04a9793812c187a2c1a2192fa","status":"affected","lessThan":"cba413765376bb466035c9160fa3130402971e2c","versionType":"git"},{"version":"16a471177496c8e04a9793812c187a2c1a2192fa","status":"affected","lessThan":"92978c83bb4eef55d02a6c990c01c423131eefa7","versionType":"git"}],"repo":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git","programFiles":["fs/nfsd/nfsctl.c"]},{"vendor":"Linux","product":"Linux","defaultStatus":"affected","versions":[{"version":"6.10","status":"affected"},{"version":"0","status":"unaffected","lessThan":"6.10","versionType":"semver"},{"version":"6.12.78","status":"unaffected","lessThanOrEqual":"6.12.*","versionType":"semver"},{"version":"6.18.19","status":"unaffected","lessThanOrEqual":"6.18.*","versionType":"semver"},{"version":"6.19.9","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/nfsctl.c"]}],"references":["https://git.kernel.org/stable/c/02e87ec0bc706cb93fa47b43d18c4d10102c7d54","https://git.kernel.org/stable/c/019debe5851d7355bea9ff0248cc317878924d8f","https://git.kernel.org/stable/c/cba413765376bb466035c9160fa3130402971e2c","https://git.kernel.org/stable/c/92978c83bb4eef55d02a6c990c01c423131eefa7"],"weaknesses":[],"ingestedAt":"2026-10-29T20:11:57.932Z","source":{"repository":"CVEProject/cvelistV5","path":"cves/2026/43xxx/CVE-2026-43394.json","commit":"556c9d3a8cd17e218bb8e452ba7cd619a384ff47"},"raw":{"dataType":"CVE_RECORD","dataVersion":"5.2","cveMetadata":{"cveId":"CVE-2026-43394","state":"PUBLISHED","datePublished":"2026-05-08T14:21:38.127Z","dateUpdated":"2026-05-11T22:23:44.189Z","assignerShortName":"Linux","assignerOrgId":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","dateReserved":"2026-05-01T14:12:56.007Z"},"containers":{"cna":{"title":"nfsd: Fix cred ref leak in nfsd_nl_listener_set_doit().","descriptions":[{"lang":"en","value":"In the Linux kernel, the following vulnerability has been resolved:\n\nnfsd: Fix cred ref leak in nfsd_nl_listener_set_doit().\n\nnfsd_nl_listener_set_doit() uses get_current_cred() without\nput_cred().\n\nAs we can see from other callers, svc_xprt_create_from_sa()\ndoes not require the extra refcount.\n\nnfsd_nl_listener_set_doit() is always in the process context,\nsendmsg(), and current->cred does not go away.\n\nLet's use current_cred() in nfsd_nl_listener_set_doit()."}],"affected":[{"vendor":"Linux","product":"Linux","defaultStatus":"unaffected","versions":[{"version":"16a471177496c8e04a9793812c187a2c1a2192fa","status":"affected","lessThan":"02e87ec0bc706cb93fa47b43d18c4d10102c7d54","versionType":"git"},{"version":"16a471177496c8e04a9793812c187a2c1a2192fa","status":"affected","lessThan":"019debe5851d7355bea9ff0248cc317878924d8f","versionType":"git"},{"version":"16a471177496c8e04a9793812c187a2c1a2192fa","status":"affected","lessThan":"cba413765376bb466035c9160fa3130402971e2c","versionType":"git"},{"version":"16a471177496c8e04a9793812c187a2c1a2192fa","status":"affected","lessThan":"92978c83bb4eef55d02a6c990c01c423131eefa7","versionType":"git"}],"repo":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git","programFiles":["fs/nfsd/nfsctl.c"]},{"vendor":"Linux","product":"Linux","defaultStatus":"affected","versions":[{"version":"6.10","status":"affected"},{"version":"0","status":"unaffected","lessThan":"6.10","versionType":"semver"},{"version":"6.12.78","status":"unaffected","lessThanOrEqual":"6.12.*","versionType":"semver"},{"version":"6.18.19","status":"unaffected","lessThanOrEqual":"6.18.*","versionType":"semver"},{"version":"6.19.9","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/nfsctl.c"]}],"references":[{"url":"https://git.kernel.org/stable/c/02e87ec0bc706cb93fa47b43d18c4d10102c7d54"},{"url":"https://git.kernel.org/stable/c/019debe5851d7355bea9ff0248cc317878924d8f"},{"url":"https://git.kernel.org/stable/c/cba413765376bb466035c9160fa3130402971e2c"},{"url":"https://git.kernel.org/stable/c/92978c83bb4eef55d02a6c990c01c423131eefa7"}],"providerMetadata":{"shortName":"Linux","orgId":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","dateUpdated":"2026-05-11T22:23:44.189Z"},"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"}]}]}],"x_generator":{"engine":"bippy-1.2.0"}}}}}