CVE-2026-31673
HIGHaf_unix: read UNIX_DIAG_VFS data under unix_state_lock
Title source: cnaDescription
In the Linux kernel, the following vulnerability has been resolved: af_unix: read UNIX_DIAG_VFS data under unix_state_lock Exact UNIX diag lookups hold a reference to the socket, but not to u->path. Meanwhile, unix_release_sock() clears u->path under unix_state_lock() and drops the path reference after unlocking. Read the inode and device numbers for UNIX_DIAG_VFS while holding unix_state_lock(), then emit the netlink attribute after dropping the lock. This keeps the VFS data stable while the reply is being built.
References (8)
Core 8
Core References
Scores
CVSS v3
7.8
EPSS
0.0012
EPSS Percentile
2.2%
Attack Vector
LOCAL
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
Details
Status
published
Products (27)
linux/Kernel
3.3.0 - 5.10.258linux
linux/Kernel
5.11.0 - 5.15.209linux
linux/Kernel
5.16.0 - 6.1.175linux
linux/Kernel
6.13.0 - 6.18.24linux
linux/Kernel
6.19.0 - 6.19.14linux
linux/Kernel
6.2.0 - 6.6.136linux
linux/Kernel
6.7.0 - 6.12.83linux
Linux/Linux
< 3.3
Linux/Linux
3.3
Linux/Linux
5.10.258 - 5.10.*
... and 17 more
Published
Apr 25, 2026
Tracked Since
Apr 25, 2026