CVE-2024-50043
nfsd: fix possible badness in FREE_STATEID
CVSS Score
0.0
EPSS Score
0.0%
EPSS Percentile
0th
In the Linux kernel, the following vulnerability has been resolved: nfsd: fix possible badness in FREE_STATEID When multiple FREE_STATEIDs are sent for the same delegation stateid, it can lead to a possible either use-after-free or counter refcount underflow errors. In nfsd4_free_stateid() under the client lock we find a delegation stateid, however the code drops the lock before calling nfs4_put_stid(), that allows another FREE_STATE to find the stateid again. The first one will proceed to then free the stateid which leads to either use-after-free or decrementing already zeroed counter.
| Vendor | linux |
| Product | linux |
| Ecosystems | |
| Industries | Technology |
| Published | Oct 21, 2024 |
| Last Updated | May 11, 2026 |
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Affected Versions
Linux / Linux
3f29cc82a84c23cfd12b903029dd26002ca825f5 < 7ca9e472ce5c67daa3188a348ece8c02a0765039 3f29cc82a84c23cfd12b903029dd26002ca825f5 < c88c150a467fcb670a1608e2272beeee3e86df6e
Linux / Linux
6.9