CVE-2026-74730

CVE-2026-74730

Critical · published August 22, 2026

CVSS v3.1
9.8
EPSS
1%
Percentile
42.7
In the wild
Unconfirmed
What it is

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.

The record
Technical detail
CVSS v3.1
9.8 · CRITICAL
Vector
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
CVSS v4.0
Not supplied
EPSS
0.00510 · 42.7th percentile
Published
2026-08-22T20:16Z
References (8)
https://git.kernel.org/stable/c/80ed3d762628b36c9e4b22fac7c65b72ef3b13dd · 416baaa9-dc9f-4396-8d5f-8c081fb06d67https://git.kernel.org/stable/c/af62f1af182d33a0de38308c012841885d8ab92e · 416baaa9-dc9f-4396-8d5f-8c081fb06d67https://git.kernel.org/stable/c/caee6a68ffaa5016dfc01cd0b3dc1896a32e3abd · 416baaa9-dc9f-4396-8d5f-8c081fb06d67https://git.kernel.org/stable/c/cf616096a0f3a2b60f7d68b6b39674a6867ded9c · 416baaa9-dc9f-4396-8d5f-8c081fb06d67https://git.kernel.org/stable/c/d71dfffa512e71b166a889484e4c3b148a9a3af2 · 416baaa9-dc9f-4396-8d5f-8c081fb06d67https://git.kernel.org/stable/c/d858ab09e787106432d4d9830bad9dfedf02f890 · 416baaa9-dc9f-4396-8d5f-8c081fb06d67https://git.kernel.org/stable/c/ed1161ab6239761958b38d5667225634fc2be894 · 416baaa9-dc9f-4396-8d5f-8c081fb06d67https://git.kernel.org/stable/c/ed2f92ce2fc48463c41e0e540b9a3454889e8af8 · 416baaa9-dc9f-4396-8d5f-8c081fb06d67
EPSS history
Timeline
  • 22 AUG 15:33Z
    NFS: Pin the 'struct nfs_server' during a FREE_STATEID call
    cvelistv5