CVE-2026-45901

Summary

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.

Affected Software

VendorProductVersion RangeStatus
LinuxLinux3cb03edb4de33fd04c4ea55f47397b96a8657c53 < ee3978b6a0dcd4215cb7cedcba705a12174786a7affected
LinuxLinux3cb03edb4de33fd04c4ea55f47397b96a8657c53 < 7f261bb906bf527c4a6e2a646e2d5f3679f2a8bcaffected
LinuxLinuxfb1adb05ea87b6149e65a31e511756c4f470d0cdaffected
LinuxLinuxf123293db16dcd0cd81b246ae60e6362f0025d0aaffected
LinuxLinux6.1.107 < 6.2affected
LinuxLinux6.6.48 < 6.7affected
LinuxLinux6.7affected
LinuxLinux0 < 6.7unaffected
LinuxLinux6.19.4 <= 6.19.*unaffected
LinuxLinux7.0 <= *unaffected

Weaknesses

References