Answer in brief
CVE-2024-50043 records a Critical severity (CVSS 9.8) vulnerability in nfsd: fix possible badness in FREE_STATEID. The current sources do not mark it as known exploited. The current feed maps Linux/Linux (generic), Linux/Linux (generic), Linux/Linux (generic). Check affected ranges and fixed versions before updating.
Analysis pending evidence review
HOL Guard separates source facts from reviewed analysis. See the methodology.
CVSS is 9.8. The current sources do not mark it as known exploited. Treat this as a source-backed prioritization signal, not a statement about your environment.
Analysis status
Analysis pending evidence review
Factual feed record only; HOL analysis is not approved for indexing. Read the methodology.
The current feed maps Linux/Linux (generic), Linux/Linux (generic), Linux/Linux (generic). Check affected ranges and fixed versions before updating.
| Product | Affected versions | Fixed versions |
|---|---|---|
| cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:* | Not reported | Not reported |
| cpe:2.3:o:linux:linux_kernel:6.12:rc1:*:*:*:*:*:* | Not reported | Not reported |
| cpe:2.3:o:linux:linux_kernel:6.12:rc2:*:*:*:*:*:* | Not reported | Not reported |
| Package | Affected range | Fixed version |
|---|---|---|
| Linux/Linuxgeneric | >=3f29cc82a84c23cfd12b903029dd26002ca825f5 <7ca9e472ce5c67daa3188a348ece8c02a0765039 || >=3f29cc82a84c23cfd12b903029dd26002ca825f5 <c88c150a467fcb670a1608e2272beeee3e86df6e | 7ca9e472ce5c67daa3188a348ece8c02a0765039, c88c150a467fcb670a1608e2272beeee3e86df6e |
| Linux/Linuxgeneric | 6.9 | Not reported |
| Linux/Linuxgeneric | >=3f29cc82a84c23cfd12b903029dd26002ca825f5 <7ca9e472ce5c67daa3188a348ece8c02a0765039 || >=3f29cc82a84c23cfd12b903029dd26002ca825f5 <c88c150a467fcb670a1608e2272beeee3e86df6e || 172d038b7c4d3cfa9fc5ac210577c5c4f8256320 || >=6.6.160 <6.7 | 7ca9e472ce5c67daa3188a348ece8c02a0765039, c88c150a467fcb670a1608e2272beeee3e86df6e, 6.7 |
Published upstream
Oct 21, 2024
Evidence: source:cvelist:source_dates:source-dates:recordSource modified
Oct 21, 2026
Evidence: source:cvelist:source_dates:source-dates:recordFirst seen by HOL
Aug 5, 2026
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.
Quoted source text, attributed separately from HOL analysis.