{"dataType":"CVE_RECORD","dataVersion":"5.2","cveMetadata":{"cveId":"CVE-2023-53680","assignerOrgId":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","state":"PUBLISHED","assignerShortName":"Linux","dateReserved":"2025-10-07T15:16:59.664Z","datePublished":"2025-10-07T15:21:34.626Z","dateUpdated":"2026-05-11T19:49:50.583Z"},"containers":{"cna":{"providerMetadata":{"orgId":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","shortName":"Linux","dateUpdated":"2026-05-11T19:49:50.583Z"},"descriptions":[{"lang":"en","value":"In the Linux kernel, the following vulnerability has been resolved:\n\nNFSD: Avoid calling OPDESC() with ops->opnum == OP_ILLEGAL\n\nOPDESC() simply indexes into nfsd4_ops[] by the op's operation\nnumber, without range checking that value. It assumes callers are\ncareful to avoid calling it with an out-of-bounds opnum value.\n\nnfsd4_decode_compound() is not so careful, and can invoke OPDESC()\nwith opnum set to OP_ILLEGAL, which is 10044 -- well beyond the end\nof nfsd4_ops[]."}],"affected":[{"product":"Linux","vendor":"Linux","defaultStatus":"unaffected","repo":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git","programFiles":["fs/nfsd/nfs4xdr.c"],"versions":[{"version":"f4f9ef4a1b0a1ca80b152e28e176d69515bdf7e8","lessThan":"50827896c365e0f6c8b55ed56d444dafd87c92c5","status":"affected","versionType":"git"},{"version":"f4f9ef4a1b0a1ca80b152e28e176d69515bdf7e8","lessThan":"a64160124d5a078be0c380b1e8a0bad2d040d3a1","status":"affected","versionType":"git"},{"version":"f4f9ef4a1b0a1ca80b152e28e176d69515bdf7e8","lessThan":"ffcbcf087581ae68ddc0a21460f7ecd4315bdd0e","status":"affected","versionType":"git"},{"version":"f4f9ef4a1b0a1ca80b152e28e176d69515bdf7e8","lessThan":"f352c41fa718482979e7e6b71b4da2b718e381cc","status":"affected","versionType":"git"},{"version":"f4f9ef4a1b0a1ca80b152e28e176d69515bdf7e8","lessThan":"804d8e0a6e54427268790472781e03bc243f4ee3","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/nfs4xdr.c"],"versions":[{"version":"4.14","status":"affected"},{"version":"0","lessThan":"4.14","status":"unaffected","versionType":"semver"},{"version":"5.10.220","lessThanOrEqual":"5.10.*","status":"unaffected","versionType":"semver"},{"version":"5.15.107","lessThanOrEqual":"5.15.*","status":"unaffected","versionType":"semver"},{"version":"6.1.24","lessThanOrEqual":"6.1.*","status":"unaffected","versionType":"semver"},{"version":"6.2.11","lessThanOrEqual":"6.2.*","status":"unaffected","versionType":"semver"},{"version":"6.3","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":"4.14","versionEndExcluding":"5.10.220"},{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"4.14","versionEndExcluding":"5.15.107"},{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"4.14","versionEndExcluding":"6.1.24"},{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"4.14","versionEndExcluding":"6.2.11"},{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"4.14","versionEndExcluding":"6.3"}]}]}],"references":[{"url":"https://git.kernel.org/stable/c/50827896c365e0f6c8b55ed56d444dafd87c92c5"},{"url":"https://git.kernel.org/stable/c/a64160124d5a078be0c380b1e8a0bad2d040d3a1"},{"url":"https://git.kernel.org/stable/c/ffcbcf087581ae68ddc0a21460f7ecd4315bdd0e"},{"url":"https://git.kernel.org/stable/c/f352c41fa718482979e7e6b71b4da2b718e381cc"},{"url":"https://git.kernel.org/stable/c/804d8e0a6e54427268790472781e03bc243f4ee3"}],"title":"NFSD: Avoid calling OPDESC() with ops->opnum == OP_ILLEGAL","x_generator":{"engine":"bippy-1.2.0"}}}}