Vulnerability details
CVE-2026-74730
Linux Linux
NFS: Pin the 'struct nfs_server' during a FREE_STATEID call
CVSS 3.1
9.8Critical
Official description
In the Linux kernel, the following vulnerability has been resolved: NFS: Pin the 'struct nfs_server' during a FREE_STATEID call Dan Aloni reports that he was able to hit a use-after-free bug if a FREE_STATEID operation gets delayed for whatever reason. Fix this by bumping the refcount of the 'struct nfs_server' object for the duration of the FREE_STATEID so it doesn't get cleaned up from underneath us while operations are still in flight.
CVSS scores
| Score | Version | Source | Vector |
|---|---|---|---|
| 9.8Critical | 3.1 | CVEProject cvelistV5 (CNA) (Linux) | CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H |
Affected products
| Vendor | Product | Versions | Source |
|---|---|---|---|
| Linux | Linux | 3.10 | CVEProject cvelistV5 (CNA) |
| Linux | Linux | 7c1d5fae4a87d3cf3e9ffd68bcdbaf6529013009 ≤ v < d858ab09e787106432d4d9830bad9dfedf02f890 | CVEProject cvelistV5 (CNA) |
| Linux | Linux | 7c1d5fae4a87d3cf3e9ffd68bcdbaf6529013009 ≤ v < af62f1af182d33a0de38308c012841885d8ab92e | CVEProject cvelistV5 (CNA) |
| Linux | Linux | 7c1d5fae4a87d3cf3e9ffd68bcdbaf6529013009 ≤ v < caee6a68ffaa5016dfc01cd0b3dc1896a32e3abd | CVEProject cvelistV5 (CNA) |
| Linux | Linux | 7c1d5fae4a87d3cf3e9ffd68bcdbaf6529013009 ≤ v < ed2f92ce2fc48463c41e0e540b9a3454889e8af8 | CVEProject cvelistV5 (CNA) |
| Linux | Linux | 7c1d5fae4a87d3cf3e9ffd68bcdbaf6529013009 ≤ v < d71dfffa512e71b166a889484e4c3b148a9a3af2 | CVEProject cvelistV5 (CNA) |
| Linux | Linux | 7c1d5fae4a87d3cf3e9ffd68bcdbaf6529013009 ≤ v < 80ed3d762628b36c9e4b22fac7c65b72ef3b13dd | CVEProject cvelistV5 (CNA) |
| Linux | Linux | 7c1d5fae4a87d3cf3e9ffd68bcdbaf6529013009 ≤ v < cf616096a0f3a2b60f7d68b6b39674a6867ded9c | CVEProject cvelistV5 (CNA) |
| Linux | Linux | 7c1d5fae4a87d3cf3e9ffd68bcdbaf6529013009 ≤ v < ed1161ab6239761958b38d5667225634fc2be894 | CVEProject cvelistV5 (CNA) |
References and advisories
8- https://git.kernel.org/stable/c/ed2f92ce2fc48463c41e0e540b9a3454889e8af8
- https://git.kernel.org/stable/c/d858ab09e787106432d4d9830bad9dfedf02f890
- https://git.kernel.org/stable/c/af62f1af182d33a0de38308c012841885d8ab92e
- https://git.kernel.org/stable/c/caee6a68ffaa5016dfc01cd0b3dc1896a32e3abd
- https://git.kernel.org/stable/c/ed1161ab6239761958b38d5667225634fc2be894
- https://git.kernel.org/stable/c/d71dfffa512e71b166a889484e4c3b148a9a3af2
- https://git.kernel.org/stable/c/80ed3d762628b36c9e4b22fac7c65b72ef3b13dd
- https://git.kernel.org/stable/c/cf616096a0f3a2b60f7d68b6b39674a6867ded9c
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Details
- Published
- 2026-08-22
- Last updated
- 2026-10-16
- State
- Published
- Assigner (CNA)
- Linux
Exploit prediction (EPSS)
0.51%
Probability of exploitation in 30 days
43.7%
Percentile (among all CVEs)
SSVC assessment (CISA)
- Automatable
- Yes
- Exploitation
- None
- Technical impact
- Total
Weaknesses (CWE)
- —