CVE-2026-31673

HIGH EPSS 2.2%
Published Apr 25, 20262mo ago · Modified Jun 17, 20262w ago
7.8 CVSS 3.1
High
Find Similar
Published Apr 25, 2026 2mo ago
Last Modified Jun 17, 2026 2w ago

Description

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.

CVSS Details

Base Score
7.8
Exploitability
1.8
Impact
5.9
Vector string
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
Attack Vector Local
Attack Complexity Low
Privileges Required Low
User Interaction None
Scope Unchanged
Confidentiality High
Integrity High
Availability High

Threat Intelligence

EPSS Exploit Probability
2.2% percentile
Exploit & Patch Status
No Known Exploit
Patch Available

Affected Products 11

VendorProductVersionRange
linuxlinux_kernel*≥3.3  –  <6.6.136
linuxlinux_kernel*≥6.7  –  <6.12.83
linuxlinux_kernel*≥6.13  –  <6.18.24
linuxlinux_kernel*≥6.19  –  <6.19.14
linuxlinux_kernel7.0any
linuxlinux_kernel7.0any
linuxlinux_kernel7.0any
linuxlinux_kernel7.0any
linuxlinux_kernel7.0any
linuxlinux_kernel7.0any
linuxlinux_kernel7.0any

References 8

  • git.kernel.org https://git.kernel.org/stable/c/0c739f3785f84af695952c2bac8be2f45082c9b8
    Patch
  • git.kernel.org https://git.kernel.org/stable/c/39897df386376912d561d4946499379effa1e7ef
    Patch
  • git.kernel.org https://git.kernel.org/stable/c/4f6a8f10182c3a9d22e8eb183957ae7ade9e4bf7
  • git.kernel.org https://git.kernel.org/stable/c/900a4e0910e98b8caef117d5df00471fa438dcf9
    Patch
  • git.kernel.org https://git.kernel.org/stable/c/b9232421a77a649c9376c99fdfc8cb7f79cad34c
    Patch
  • git.kernel.org https://git.kernel.org/stable/c/bdf206e740bf2919d818f132c8c9cc7ed91d11c0
    Patch
  • git.kernel.org https://git.kernel.org/stable/c/c3ec44ab4526bbc4b6c9fc845af86488244f4c9b
  • git.kernel.org https://git.kernel.org/stable/c/e7339db13b9ddb63417b12da55fd6191e59f7442

Remediation

  • git.kernel.org https://git.kernel.org/stable/c/0c739f3785f84af695952c2bac8be2f45082c9b8
    Patch
  • git.kernel.org https://git.kernel.org/stable/c/39897df386376912d561d4946499379effa1e7ef
    Patch
  • git.kernel.org https://git.kernel.org/stable/c/900a4e0910e98b8caef117d5df00471fa438dcf9
    Patch
  • git.kernel.org https://git.kernel.org/stable/c/b9232421a77a649c9376c99fdfc8cb7f79cad34c
    Patch
  • git.kernel.org https://git.kernel.org/stable/c/bdf206e740bf2919d818f132c8c9cc7ed91d11c0
    Patch