{"id":"CVE-2023-53680","summary":"NFSD: Avoid calling OPDESC() with ops-\u003eopnum == OP_ILLEGAL","details":"In the Linux kernel, the following vulnerability has been resolved:\n\nNFSD: Avoid calling OPDESC() with ops-\u003eopnum == 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[].","modified":"2026-03-20T12:33:17.759380Z","published":"2025-10-07T15:21:34.626Z","related":["SUSE-SU-2025:4111-1","SUSE-SU-2025:4139-1","SUSE-SU-2025:4149-1","SUSE-SU-2025:4320-1"],"database_specific":{"osv_generated_from":"https://github.com/CVEProject/cvelistV5/tree/main/cves/2023/53xxx/CVE-2023-53680.json","cna_assigner":"Linux"},"references":[{"type":"WEB","url":"https://git.kernel.org/stable/c/50827896c365e0f6c8b55ed56d444dafd87c92c5"},{"type":"WEB","url":"https://git.kernel.org/stable/c/804d8e0a6e54427268790472781e03bc243f4ee3"},{"type":"WEB","url":"https://git.kernel.org/stable/c/a64160124d5a078be0c380b1e8a0bad2d040d3a1"},{"type":"WEB","url":"https://git.kernel.org/stable/c/f352c41fa718482979e7e6b71b4da2b718e381cc"},{"type":"WEB","url":"https://git.kernel.org/stable/c/ffcbcf087581ae68ddc0a21460f7ecd4315bdd0e"},{"type":"ADVISORY","url":"https://github.com/CVEProject/cvelistV5/tree/main/cves/2023/53xxx/CVE-2023-53680.json"},{"type":"ADVISORY","url":"https://nvd.nist.gov/vuln/detail/CVE-2023-53680"},{"type":"PACKAGE","url":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git"}],"affected":[{"ranges":[{"type":"GIT","repo":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git","events":[{"introduced":"f4f9ef4a1b0a1ca80b152e28e176d69515bdf7e8"},{"fixed":"50827896c365e0f6c8b55ed56d444dafd87c92c5"},{"fixed":"a64160124d5a078be0c380b1e8a0bad2d040d3a1"},{"fixed":"ffcbcf087581ae68ddc0a21460f7ecd4315bdd0e"},{"fixed":"f352c41fa718482979e7e6b71b4da2b718e381cc"},{"fixed":"804d8e0a6e54427268790472781e03bc243f4ee3"}]}],"database_specific":{"source":"https://storage.googleapis.com/osv-test-cve-osv-conversion/osv-output/CVE-2023-53680.json"}}],"schema_version":"1.7.5"}