CVE-2023-53680
NFSD: Avoid calling OPDESC() with ops->opnum == OP_ILLEGAL
CVSS Score
0.0
EPSS Score
0.0%
EPSS Percentile
0th
In the Linux kernel, the following vulnerability has been resolved: NFSD: Avoid calling OPDESC() with ops->opnum == OP_ILLEGAL OPDESC() simply indexes into nfsd4_ops[] by the op's operation number, without range checking that value. It assumes callers are careful to avoid calling it with an out-of-bounds opnum value. nfsd4_decode_compound() is not so careful, and can invoke OPDESC() with opnum set to OP_ILLEGAL, which is 10044 -- well beyond the end of nfsd4_ops[].
| Vendor | linux |
| Product | linux |
| Ecosystems | |
| Industries | Technology |
| Published | Oct 7, 2025 |
| Last Updated | May 11, 2026 |
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Affected Versions
Linux / Linux
f4f9ef4a1b0a1ca80b152e28e176d69515bdf7e8 < 50827896c365e0f6c8b55ed56d444dafd87c92c5 f4f9ef4a1b0a1ca80b152e28e176d69515bdf7e8 < a64160124d5a078be0c380b1e8a0bad2d040d3a1 f4f9ef4a1b0a1ca80b152e28e176d69515bdf7e8 < ffcbcf087581ae68ddc0a21460f7ecd4315bdd0e f4f9ef4a1b0a1ca80b152e28e176d69515bdf7e8 < f352c41fa718482979e7e6b71b4da2b718e381cc f4f9ef4a1b0a1ca80b152e28e176d69515bdf7e8 < 804d8e0a6e54427268790472781e03bc243f4ee3
Linux / Linux
4.14
References
git.kernel.org: https://git.kernel.org/stable/c/50827896c365e0f6c8b55ed56d444dafd87c92c5 git.kernel.org: https://git.kernel.org/stable/c/a64160124d5a078be0c380b1e8a0bad2d040d3a1 git.kernel.org: https://git.kernel.org/stable/c/ffcbcf087581ae68ddc0a21460f7ecd4315bdd0e git.kernel.org: https://git.kernel.org/stable/c/f352c41fa718482979e7e6b71b4da2b718e381cc git.kernel.org: https://git.kernel.org/stable/c/804d8e0a6e54427268790472781e03bc243f4ee3