CVE-2024-26855

net: ice: Fix potential NULL pointer dereference in ice_bridge_setlink()

MEDIUM
5.5
CVSS Score
Published: April 17, 2024 at 10:17 AM UTC
Updated: October 15, 2026 at 01:17 AM UTC
3 products affected across 3 vendorsLinux KernelDebian LinuxSIMATIC S7-1500 TM MFP

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Severity
MEDIUM5.5
Exploit prediction
EPSS 0.3%
SSVC
No known exploit

Description

In the Linux kernel, the following vulnerability has been resolved: net: ice: Fix potential NULL pointer dereference in ice_bridge_setlink() The function ice_bridge_setlink() may encounter a NULL pointer dereference if nlmsg_find_attr() returns NULL and br_spec is dereferenced subsequently in nla_for_each_nested(). To address this issue, add a check to ensure that br_spec is not NULL before proceeding with the nested attribute iteration.

Affected

Our own answer: ranges merged, affected separated from platform-only, with confidence and review flags.

4.20 ≤ v < 5.4.2725.11 ≤ v < 5.15.1525.16 ≤ v < 6.1.825.5 ≤ v < 5.10.2136.2 ≤ v < 6.6.226.7 ≤ v < 6.7.106.86.8 rc16.8 rc26.8 rc36.8 rc46.8 rc56.8 rc6b1edc14a3fbfe0154a2aecb8bb9775c3012cb6e2
Vendor states this is fixed in 06e456a05d669ca30b224b8ed962421770c1496c (fixed)
Vendor states this is fixed in 0e296067ae0d74a10b4933601f9aa9f0ec8f157f (fixed)
Vendor states this is fixed in 1a770927dc1d642b22417c3e668c871689fc58b3 (fixed)
Vendor states this is fixed in 37fe99016b12d32100ce670216816dba6c48b309 (fixed)
Vendor states this is fixed in 8d95465d9a424200485792858c5b3be54658ce19 (fixed)
Vendor states this is fixed in afdd29726a6de4ba27cd15590661424c888dc596 (fixed)
Vendor states this is fixed in d9fefc51133107e59d192d773be86c1150cfeebb (fixed)
Vendor states this is fixed in 4.20 (unaffected)
Vendor states this is fixed in 5.10.213 (unaffected)
Vendor states this is fixed in 5.15.152 (unaffected)
Vendor states this is fixed in 5.4.272 (unaffected)
Vendor states this is fixed in 6.1.82 (unaffected)
Vendor states this is fixed in 6.6.22 (unaffected)
Vendor states this is fixed in 6.7.10 (unaffected)
Vendor states this is fixed in 6.8 (unaffected)

References (9)

Patch
Source: 416baaa9-dc9f-4396-8d5f-8c081fb06d67
https://git.kernel.org/stable/c/06e456a05d669ca30b224b8ed962421770c1496c
Patch
Source: 416baaa9-dc9f-4396-8d5f-8c081fb06d67
https://git.kernel.org/stable/c/0e296067ae0d74a10b4933601f9aa9f0ec8f157f
Patch
Source: 416baaa9-dc9f-4396-8d5f-8c081fb06d67
https://git.kernel.org/stable/c/1a770927dc1d642b22417c3e668c871689fc58b3
Patch
Source: 416baaa9-dc9f-4396-8d5f-8c081fb06d67
https://git.kernel.org/stable/c/37fe99016b12d32100ce670216816dba6c48b309
Patch
Source: 416baaa9-dc9f-4396-8d5f-8c081fb06d67
https://git.kernel.org/stable/c/8d95465d9a424200485792858c5b3be54658ce19
Patch
Source: 416baaa9-dc9f-4396-8d5f-8c081fb06d67
https://git.kernel.org/stable/c/afdd29726a6de4ba27cd15590661424c888dc596
Patch
Source: 416baaa9-dc9f-4396-8d5f-8c081fb06d67
https://git.kernel.org/stable/c/d9fefc51133107e59d192d773be86c1150cfeebb
Mailing List
Source: af854a3a-2127-422b-91ae-364da2661108
https://lists.debian.org/debian-lts-announce/2024/06/msg00017.html

SSVC — Action Prioritization

SSVCNo known exploitNot automatablePartial impact

SSVC signals action urgency (what to patch first), separate from CVSS which measures severity.

CVSS

Attack Vector
LOCAL
Complexity
LOW
Privileges
LOW
User Interaction
NONE
Scope
UNCHANGED
Confidentiality
NONE
Integrity
NONE
Availability
HIGH
Vector?

Quick Info

StatusMODIFIED
CWE
CWE-476

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