🛡️ CVE-2025-71086 — kernel

🟠 CVSS 7.8 — High ✅ No Known Exploit NVD
7.8
CVSS Score
0 Low4 Medium7 High9 Critical10

Description

net: rose: fix invalid array index in rose_kill_by_device()

In the Linux kernel, the following vulnerability has been resolved:

net: rose: fix invalid array index in rose_kill_by_device()

rose_kill_by_device() collects sockets into a local array[] and then

iterates over them to disconnect sockets bound to a device being brought

down.

The loop mistakenly indexes array[cnt] instead of array[i]. For cnt <

ARRAY_SIZE(array), this reads an uninitialized entry; for cnt ==

ARRAY_SIZE(array), it is an out-of-bounds read. Either case can lead to

an invalid socket pointer dereference and also leaks references taken

via sock_hold().

Fix the index to use i.

How this vulnerability can be exploited

This issue can be reached with local access to the system, attack complexity is low, an attacker needs low-level privileges on the target. No user interaction is required. The scope is unchanged, so the impact stays within the vulnerable component. Rated impact: confidentiality high, integrity high, availability high.

Affected software

CVE-2025-71086 is recorded against 2 packages.

  • kernel (from 6.7.0 up to 6.18.4)
  • linux-kernel

Timeline and source

Published on 13 January 2026 and last revised on 16 July 2026. No public exploit is currently recorded for this entry. A vendor advisory or fix has been published. Record sourced from NVD.

References

cert-portal.siemens.com (Web)
git.kernel.org (Web)
git.kernel.org (Web)
git.kernel.org (Web)
git.kernel.org (Web)
git.kernel.org (Web)
git.kernel.org (Web)
git.kernel.org (Web)
github.com (Advisory)
nvd.nist.gov (Advisory)
git.kernel.org (Package)

CVE-2025-71086 on other distributions

Each distribution ships its own build and its own fixed version. Pick the one you run:

Details

Severity High
CVSS Score 7.8
CVSS Vector CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
CWE N/A
Public Exploit ✅ No
Source NVD
Published 2026-01-13
Updated 2026-08-12
Modified 2026-07-16

Affected Packages

Software From version Fixed in
kernel 6.7.0 6.18.4
linux-kernel — —

References

Similar Threats

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