CVE-2026-64002

CVE CVE-2026-64002EUVD EUVD-2026-45575Published 2026-07-19T14:56:19.000ZLast changed 2026-08-05T12:38:02.000ZCVSS 7.8

What the advisory describes

In the Linux kernel, the following vulnerability has been resolved: ipv4: free net->ipv4.sysctl_local_reserved_ports after unregister_net_sysctl_table() ipv4_sysctl_exit_net() is currently freeing net->ipv4.sysctl_local_reserved_ports too soon. Only after unregister_net_sysctl_table() we can be sure no threads can possibly use the sysctls, including /proc/sys/net/ipv4/ip_local_reserved_ports.

Source: EUVD (ENISA), in the words of the advisory.

Products the advisory names

These come from the advisory itself, not from any check we performed.

Linux — Linux patch: 6.12.93; 122ff243f5f104194750ecbc76d5946dd1eec934 <a0ffc6081a8b27082dd5eae5aa1e3f59bbecf06c; 122ff243f5f104194750ecbc76d5946dd1eec934 <ecf45080a4d3f4526cacb8b14060fe3b49a6913b; patch: 6.1.176; 122ff243f5f104194750ecbc76d5946dd1eec934 <87a1e0fe7776da7ab411be332b4be58ac8840d10; 3.16; patch: 6.6.143; 122ff243f5f104194750ecbc76d5946dd1eec934 <8e59d4d0dcde2dfb07a7ef855c849a2a0560aa57; patch: 0; 122ff243f5f104194750ecbc76d5946dd1eec934 <5b23a2ff379e70b6b9ff744a972b63e1f8f4d996; 122ff243f5f104194750ecbc76d5946dd1eec934 <a7f4eefb6e1458431eef9fa20fb363320d185f76; patch: 5.15.210; 122ff243f5f104194750ecbc76d5946dd1eec934 <155f90be5ee8be5b110ebc0b7da33c54c83b0208; patch: 7.1; patch: 7.0.12; patch: 5.10.259; patch: 6.18.35; 122ff243f5f104194750ecbc76d5946dd1eec934 <6512c57c4638ddec113bf42439361ba85a12048d

The versions shown are the advisory's own. Patchlage compares no version numbers and derives no judgement from them — which version is installed is something a person has to look up.

Carried in the product catalogue

An estate covering these products can be recorded in Patchlage. An advisory about them appears in the next morning's situation report.

Linux — Linux

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