Answer in brief
CVE-2026-45901 records a Medium severity (CVSS 5.5) vulnerability in netfilter: nf_tables: revert commit_mutex usage in reset path. The current sources do not mark it as known exploited. The current feed maps Linux/Linux (generic), Linux/Linux (generic). Check affected ranges and fixed versions before updating.
Analysis pending evidence review
HOL Guard separates source facts from reviewed analysis. See the methodology.
CVSS is 5.5. The current sources do not mark it as known exploited. Treat this as a source-backed prioritization signal, not a statement about your environment.
Analysis status
Analysis pending evidence review
Factual feed record only; HOL analysis is not approved for indexing. Read the methodology.
The current feed maps Linux/Linux (generic), Linux/Linux (generic). Check affected ranges and fixed versions before updating.
| Package | Affected range | Fixed version |
|---|---|---|
| Linux/Linuxgeneric | >=3cb03edb4de33fd04c4ea55f47397b96a8657c53 <d66bedfe97a2bc321fa8118e669aae988038f729 || >=3cb03edb4de33fd04c4ea55f47397b96a8657c53 <f6410d18c1e2da325df02be989d5bca5ed38b086 || >=3cb03edb4de33fd04c4ea55f47397b96a8657c53 <ee3978b6a0dcd4215cb7cedcba705a12174786a7 || >=3cb03edb4de33fd04c4ea55f47397b96a8657c53 <7f261bb906bf527c4a6e2a646e2d5f3679f2a8bc || fb1adb05ea87b6149e65a31e511756c4f470d0cd || f123293db16dcd0cd81b246ae60e6362f0025d0a || >=6.1.107 <6.2 || >=6.6.48 <6.7 | d66bedfe97a2bc321fa8118e669aae988038f729, f6410d18c1e2da325df02be989d5bca5ed38b086, ee3978b6a0dcd4215cb7cedcba705a12174786a7, 7f261bb906bf527c4a6e2a646e2d5f3679f2a8bc, 6.2, 6.7 |
| Linux/Linuxgeneric | 6.7 | Not reported |
Published upstream
May 27, 2026
Evidence: source:cvelist:source_dates:source-dates:recordSource modified
Aug 3, 2026
Evidence: source:cvelist:source_dates:source-dates:recordFirst seen by HOL
Jun 24, 2026
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.
Quoted source text, attributed separately from HOL analysis.
Answer in brief
CVE-2026-45901 records a Medium severity (CVSS 5.5) vulnerability in netfilter: nf_tables: revert commit_mutex usage in reset path. The current sources do not mark it as known exploited. The current feed maps Linux/Linux (generic), Linux/Linux (generic). Check affected ranges and fixed versions before updating.
Analysis pending evidence review
HOL Guard separates source facts from reviewed analysis. See the methodology.
CVSS is 5.5. The current sources do not mark it as known exploited. Treat this as a source-backed prioritization signal, not a statement about your environment.
Analysis status
Analysis pending evidence review
Factual feed record only; HOL analysis is not approved for indexing. Read the methodology.
The current feed maps Linux/Linux (generic), Linux/Linux (generic). Check affected ranges and fixed versions before updating.
| Package | Affected range | Fixed version |
|---|---|---|
| Linux/Linuxgeneric | >=3cb03edb4de33fd04c4ea55f47397b96a8657c53 <d66bedfe97a2bc321fa8118e669aae988038f729 || >=3cb03edb4de33fd04c4ea55f47397b96a8657c53 <f6410d18c1e2da325df02be989d5bca5ed38b086 || >=3cb03edb4de33fd04c4ea55f47397b96a8657c53 <ee3978b6a0dcd4215cb7cedcba705a12174786a7 || >=3cb03edb4de33fd04c4ea55f47397b96a8657c53 <7f261bb906bf527c4a6e2a646e2d5f3679f2a8bc || fb1adb05ea87b6149e65a31e511756c4f470d0cd || f123293db16dcd0cd81b246ae60e6362f0025d0a || >=6.1.107 <6.2 || >=6.6.48 <6.7 | d66bedfe97a2bc321fa8118e669aae988038f729, f6410d18c1e2da325df02be989d5bca5ed38b086, ee3978b6a0dcd4215cb7cedcba705a12174786a7, 7f261bb906bf527c4a6e2a646e2d5f3679f2a8bc, 6.2, 6.7 |
| Linux/Linuxgeneric | 6.7 | Not reported |
Published upstream
May 27, 2026
Evidence: source:cvelist:source_dates:source-dates:recordSource modified
Aug 3, 2026
Evidence: source:cvelist:source_dates:source-dates:recordFirst seen by HOL
Jun 24, 2026
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.
Quoted source text, attributed separately from HOL analysis.