NFS: Pin the 'struct nfs_server' during a FREE_STATEID call
Summary
| CVE | CVE-2026-74730 |
|---|---|
| State | PUBLISHED |
| Assigner | Linux |
| Source Priority | CVE Program / NVD first with legacy fallback |
| Published | 2026-08-22 16:16:48 UTC |
| Updated | 2026-08-25 06:18:59 UTC |
| 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. |
Risk And Classification
Primary CVSS: v3.1 9.8 CRITICAL from 416baaa9-dc9f-4396-8d5f-8c081fb06d67
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
EPSS: 0.005100000 probability, percentile 0.412180000 (date 2026-08-25)
| Version | Source | Type | Score | Severity | Vector |
|---|---|---|---|---|---|
| 3.1 | 416baaa9-dc9f-4396-8d5f-8c081fb06d67 | Secondary | 9.8 | CRITICAL | CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H |
| 3.1 | CNA | DECLARED | 9.8 | CRITICAL | CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H |
CVSS v3.1 Breakdown
Attack Vector
NetworkAttack Complexity
LowPrivileges Required
NoneUser Interaction
NoneScope
UnchangedConfidentiality
HighIntegrity
HighAvailability
HighCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
Vendor Declared Affected Products
| Source | Vendor | Product | Version | Platforms |
|---|---|---|---|---|
| CNA | Linux | Linux | affected 7c1d5fae4a87d3cf3e9ffd68bcdbaf6529013009 ed2f92ce2fc48463c41e0e540b9a3454889e8af8 git | Not specified |
| CNA | Linux | Linux | affected 7c1d5fae4a87d3cf3e9ffd68bcdbaf6529013009 d858ab09e787106432d4d9830bad9dfedf02f890 git | Not specified |
| CNA | Linux | Linux | affected 7c1d5fae4a87d3cf3e9ffd68bcdbaf6529013009 af62f1af182d33a0de38308c012841885d8ab92e git | Not specified |
| CNA | Linux | Linux | affected 7c1d5fae4a87d3cf3e9ffd68bcdbaf6529013009 caee6a68ffaa5016dfc01cd0b3dc1896a32e3abd git | Not specified |
| CNA | Linux | Linux | affected 7c1d5fae4a87d3cf3e9ffd68bcdbaf6529013009 ed1161ab6239761958b38d5667225634fc2be894 git | Not specified |
| CNA | Linux | Linux | affected 7c1d5fae4a87d3cf3e9ffd68bcdbaf6529013009 d71dfffa512e71b166a889484e4c3b148a9a3af2 git | Not specified |
| CNA | Linux | Linux | affected 7c1d5fae4a87d3cf3e9ffd68bcdbaf6529013009 80ed3d762628b36c9e4b22fac7c65b72ef3b13dd git | Not specified |
| CNA | Linux | Linux | affected 7c1d5fae4a87d3cf3e9ffd68bcdbaf6529013009 cf616096a0f3a2b60f7d68b6b39674a6867ded9c git | Not specified |
| CNA | Linux | Linux | affected 3.10 | Not specified |
| CNA | Linux | Linux | unaffected 3.10 semver | Not specified |
| CNA | Linux | Linux | unaffected 5.10.265 5.10.* semver | Not specified |
| CNA | Linux | Linux | unaffected 5.15.216 5.15.* semver | Not specified |
| CNA | Linux | Linux | unaffected 6.1.183 6.1.* semver | Not specified |
| CNA | Linux | Linux | unaffected 6.6.152 6.6.* semver | Not specified |
| CNA | Linux | Linux | unaffected 6.12.104 6.12.* semver | Not specified |
| CNA | Linux | Linux | unaffected 6.18.45 6.18.* semver | Not specified |
| CNA | Linux | Linux | unaffected 7.1.9 7.1.* semver | Not specified |
| CNA | Linux | Linux | unaffected 7.2 * original_commit_for_fix | Not specified |
References
| Reference | Source | Link | Tags |
|---|---|---|---|
| git.kernel.org/stable/c/ed1161ab6239761958b38d5667225634fc2be894 | 416baaa9-dc9f-4396-8d5f-8c081fb06d67 | git.kernel.org | |
| git.kernel.org/stable/c/d71dfffa512e71b166a889484e4c3b148a9a3af2 | 416baaa9-dc9f-4396-8d5f-8c081fb06d67 | git.kernel.org | |
| git.kernel.org/stable/c/af62f1af182d33a0de38308c012841885d8ab92e | 416baaa9-dc9f-4396-8d5f-8c081fb06d67 | git.kernel.org | |
| git.kernel.org/stable/c/cf616096a0f3a2b60f7d68b6b39674a6867ded9c | 416baaa9-dc9f-4396-8d5f-8c081fb06d67 | git.kernel.org | |
| git.kernel.org/stable/c/d858ab09e787106432d4d9830bad9dfedf02f890 | 416baaa9-dc9f-4396-8d5f-8c081fb06d67 | git.kernel.org | |
| git.kernel.org/stable/c/ed2f92ce2fc48463c41e0e540b9a3454889e8af8 | 416baaa9-dc9f-4396-8d5f-8c081fb06d67 | git.kernel.org | |
| git.kernel.org/stable/c/80ed3d762628b36c9e4b22fac7c65b72ef3b13dd | 416baaa9-dc9f-4396-8d5f-8c081fb06d67 | git.kernel.org | |
| git.kernel.org/stable/c/caee6a68ffaa5016dfc01cd0b3dc1896a32e3abd | 416baaa9-dc9f-4396-8d5f-8c081fb06d67 | git.kernel.org | |
| CVE Program record | CVE.ORG | www.cve.org | canonical |
| NVD vulnerability detail | NVD | nvd.nist.gov | canonical, analysis |
No vendor comments have been submitted for this CVE.
There are currently no legacy QID mappings associated with this CVE.