# CVE-2026-45901: netfilter: nf_tables: revert commit_mutex usage in reset path

Status: published. Published: 2026-05-27. Updated: 2026-11-06.

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

netfilter: nf_tables: revert commit_mutex usage in reset path

It causes circular lock dependency between commit_mutex, nfnl_subsys_ipset
and nlk_cb_mutex when nft reset, ipset list, and iptables-nft with '-m set'
rule run at the same time.

Previous patches made it safe to run individual reset handlers concurrently
so commit_mutex is no longer required to prevent this.

## Remediation

No remediation reported in collected sources

## Affected products and versions

- Linux / Linux: ≥ f123293db16dcd0cd81b246ae60e6362f0025d0a; < b0dd8637fbaae8405eb9e8de741f9ce7c9667b6f (affected, git); ≥ 3cb03edb4de33fd04c4ea55f47397b96a8657c53; < d66bedfe97a2bc321fa8118e669aae988038f729 (affected, git); ≥ 3cb03edb4de33fd04c4ea55f47397b96a8657c53; < f6410d18c1e2da325df02be989d5bca5ed38b086 (affected, git); ≥ 3cb03edb4de33fd04c4ea55f47397b96a8657c53; < ee3978b6a0dcd4215cb7cedcba705a12174786a7 (affected, git); ≥ 3cb03edb4de33fd04c4ea55f47397b96a8657c53; < 7f261bb906bf527c4a6e2a646e2d5f3679f2a8bc (affected, git); fb1adb05ea87b6149e65a31e511756c4f470d0cd (affected, git); ≥ 6.6.48; < 6.6.160 (affected, semver); ≥ 6.1.107; < 6.2 (affected, semver). Source: CNA: Linux
- Linux / Linux: 6.7 (affected); ≥ 0; < 6.7 (unaffected, semver); ≥ 6.6.160; ≤ 6.6.* (unaffected, semver); ≥ 6.12.101; ≤ 6.12.* (unaffected, semver); ≥ 6.18.42; ≤ 6.18.* (unaffected, semver); ≥ 6.19.4; ≤ 6.19.* (unaffected, semver); ≥ 7.0; ≤ * (unaffected, original_commit_for_fix). Source: CNA: Linux

## Severity and prioritization

- CISA KEV: No listing in collected sources

- EPSS: 0.18% as of 2026-11-06; percentile 7.83%

- SSVC: exploitation none; automatable no; technical impact partial; source ADP: CISA-ADP

- Weaknesses: Not reported

## Exploit evidence

No exploit evidence in collected sources. This is not proof of no exploitation.

## References

- https://git.kernel.org/stable/c/b0dd8637fbaae8405eb9e8de741f9ce7c9667b6f (CNA: Linux)

- https://git.kernel.org/stable/c/d66bedfe97a2bc321fa8118e669aae988038f729 (CNA: Linux)

- https://git.kernel.org/stable/c/f6410d18c1e2da325df02be989d5bca5ed38b086 (CNA: Linux)

- https://git.kernel.org/stable/c/ee3978b6a0dcd4215cb7cedcba705a12174786a7 (CNA: Linux)

- https://git.kernel.org/stable/c/7f261bb906bf527c4a6e2a646e2d5f3679f2a8bc (CNA: Linux)

## Provenance

- CNA: Linux: https://www.cve.org/CVERecord?id=CVE-2026-45901; retrieved 2026-11-06; source updated 2026-11-06

- FIRST EPSS: https://api.first.org/data/v1/epss?cve=CVE-2026-45901; retrieved 2026-11-06; source updated Not reported

Revision: 6c96455edc408a2d3095a186d6037928214d77cc5ac551bc822c601419ea9ee1

Canonical: https://y2.dev/cve/CVE-2026-45901

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