CVEvulnerability
CVE-2026-74730
9.8 CRITICAL
Official page ↗
- Status
- Received
- Published
- 2026-08-22
- Last modified
- 2026-10-16
- Assigner
- 416baaa9-dc9f-4396-8d5f-8c081fb06d67
- CVSS 3.1 (416baaa9-dc9f-4396-8d5f-8c081fb06d67)
- 9.8 CRITICAL — CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
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.
References
- https://git.kernel.org/stable/c/80ed3d762628b36c9e4b22fac7c65b72ef3b13dd git.kernel.org
- https://git.kernel.org/stable/c/af62f1af182d33a0de38308c012841885d8ab92e git.kernel.org
- https://git.kernel.org/stable/c/caee6a68ffaa5016dfc01cd0b3dc1896a32e3abd git.kernel.org
- https://git.kernel.org/stable/c/cf616096a0f3a2b60f7d68b6b39674a6867ded9c git.kernel.org
- https://git.kernel.org/stable/c/d71dfffa512e71b166a889484e4c3b148a9a3af2 git.kernel.org
- https://git.kernel.org/stable/c/d858ab09e787106432d4d9830bad9dfedf02f890 git.kernel.org
- https://git.kernel.org/stable/c/ed1161ab6239761958b38d5667225634fc2be894 git.kernel.org
- https://git.kernel.org/stable/c/ed2f92ce2fc48463c41e0e540b9a3454889e8af8 git.kernel.org