{"dataType":"CVE_RECORD","dataVersion":"5.1","cveMetadata":{"cveId":"CVE-2024-46682","assignerOrgId":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","state":"PUBLISHED","assignerShortName":"Linux","dateReserved":"2024-09-11T15:12:18.248Z","datePublished":"2024-09-13T05:29:15.294Z","dateUpdated":"2025-05-04T09:31:47.775Z"},"containers":{"cna":{"providerMetadata":{"orgId":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","shortName":"Linux","dateUpdated":"2025-05-04T09:31:47.775Z"},"descriptions":[{"lang":"en","value":"In the Linux kernel, the following vulnerability has been resolved:\n\nnfsd: prevent panic for nfsv4.0 closed files in nfs4_show_open\n\nPrior to commit 3f29cc82a84c (\"nfsd: split sc_status out of\nsc_type\") states_show() relied on sc_type field to be of valid\ntype before calling into a subfunction to show content of a\nparticular stateid. From that commit, we split the validity of\nthe stateid into sc_status and no longer changed sc_type to 0\nwhile unhashing the stateid. This resulted in kernel oopsing\nfor nfsv4.0 opens that stay around and in nfs4_show_open()\nwould derefence sc_file which was NULL.\n\nInstead, for closed open stateids forgo displaying information\nthat relies of having a valid sc_file.\n\nTo reproduce: mount the server with 4.0, read and close\na file and then on the server cat /proc/fs/nfsd/clients/2/states\n\n[  513.590804] Call trace:\n[  513.590925]  _raw_spin_lock+0xcc/0x160\n[  513.591119]  nfs4_show_open+0x78/0x2c0 [nfsd]\n[  513.591412]  states_show+0x44c/0x488 [nfsd]\n[  513.591681]  seq_read_iter+0x5d8/0x760\n[  513.591896]  seq_read+0x188/0x208\n[  513.592075]  vfs_read+0x148/0x470\n[  513.592241]  ksys_read+0xcc/0x178"}],"affected":[{"product":"Linux","vendor":"Linux","defaultStatus":"unaffected","repo":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git","programFiles":["fs/nfsd/nfs4state.c"],"versions":[{"version":"3f29cc82a84c23cfd12b903029dd26002ca825f5","lessThan":"ba0b697de298285301c71c258598226e06494236","status":"affected","versionType":"git"},{"version":"3f29cc82a84c23cfd12b903029dd26002ca825f5","lessThan":"a204501e1743d695ca2930ed25a2be9f8ced96d3","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/nfsd/nfs4state.c"],"versions":[{"version":"6.9","status":"affected"},{"version":"0","lessThan":"6.9","status":"unaffected","versionType":"semver"},{"version":"6.10.8","lessThanOrEqual":"6.10.*","status":"unaffected","versionType":"semver"},{"version":"6.11","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":"6.9","versionEndExcluding":"6.10.8"},{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"6.9","versionEndExcluding":"6.11"}]}]}],"references":[{"url":"https://git.kernel.org/stable/c/ba0b697de298285301c71c258598226e06494236"},{"url":"https://git.kernel.org/stable/c/a204501e1743d695ca2930ed25a2be9f8ced96d3"}],"title":"nfsd: prevent panic for nfsv4.0 closed files in nfs4_show_open","x_generator":{"engine":"bippy-1.2.0"}},"adp":[{"metrics":[{"other":{"type":"ssvc","content":{"timestamp":"2024-09-29T15:09:15.742949Z","id":"CVE-2024-46682","options":[{"Exploitation":"none"},{"Automatable":"no"},{"Technical Impact":"partial"}],"role":"CISA Coordinator","version":"2.0.3"}}}],"title":"CISA ADP Vulnrichment","providerMetadata":{"orgId":"134c704f-9b21-4f2e-91b3-4a467353bcc0","shortName":"CISA-ADP","dateUpdated":"2024-09-29T15:09:29.944Z"}}]}}