CVE-2025-39697 — Race Condition in Linux
Severity
4.7MEDIUMNVD
EPSS
0.0%
top 98.11%
CISA KEV
Not in KEV
Exploit
No known exploits
Affected products
Timeline
PublishedSep 5
Latest updateApr 9
Description
In the Linux kernel, the following vulnerability has been resolved:
NFS: Fix a race when updating an existing write
After nfs_lock_and_join_requests() tests for whether the request is
still attached to the mapping, nothing prevents a call to
nfs_inode_remove_request() from succeeding until we actually lock the
page group.
The reason is that whoever called nfs_inode_remove_request() doesn't
necessarily have a lock on the page group head.
So in order to avoid races, let's take the page group lo…
CVSS vector
CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:N/I:N/A:HExploitability: 1.0 | Impact: 3.6
Affected Packages3 packages
▶CVEListV5linux/linuxbd37d6fce184836bd5e7cd90ce40116a4fadaf2a — 0ff42a32784e0f2cb46a46da8e9f473538c13e1b+7
Also affects: Debian Linux 11.0
Patches
🔴Vulnerability Details
3OSV▶
CVE-2025-39697: In the Linux kernel, the following vulnerability has been resolved: NFS: Fix a race when updating an existing write After nfs_lock_and_join_requests()↗2025-09-05
GHSA▶
GHSA-3fr6-pgc4-qmrv: In the Linux kernel, the following vulnerability has been resolved:
NFS: Fix a race when updating an existing write
After nfs_lock_and_join_requests↗2025-09-05