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CVE-2023-53680

NFSD: Avoid calling OPDESC() with ops->opnum == OP_ILLEGAL PUBLISHED

Description (CNA)

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[].

Affected (CNA)

Vendor / productVersions
Linux / Linuxaffected f4f9ef4a1b0a1ca80b152e28e176d69515bdf7e8 before 50827896c365e0f6c8b55ed56d444dafd87c92c5; affected f4f9ef4a1b0a1ca80b152e28e176d69515bdf7e8 before a64160124d5a078be0c380b1e8a0bad2d040d3a1; affected f4f9ef4a1b0a1ca80b152e28e176d69515bdf7e8 before ffcbcf087581ae68ddc0a21460f7ecd4315bdd0e; affected f4f9ef4a1b0a1ca80b152e28e176d69515bdf7e8 before f352c41fa718482979e7e6b71b4da2b718e381cc; affected f4f9ef4a1b0a1ca80b152e28e176d69515bdf7e8 before 804d8e0a6e54427268790472781e03bc243f4ee3
Linux / Linuxaffected 4.14; unaffected 0 before 4.14; unaffected 5.10.220 through 5.10.*; unaffected 5.15.107 through 5.15.*; unaffected 6.1.24 through 6.1.*; unaffected 6.2.11 through 6.2.*; unaffected 6.3 through *

CWE

No CWE identifiers supplied.

References

ADP enrichment

CISA-ADP

No English description supplied.

No references supplied.