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Advisory: FreeBSD — security.freebsd.org/advisories/FreeBSD-SA-26:65.kqueue.asc Clear all filters
TI-2026-74611 CVE-2026-58100 · GHSA-cvhg-28x6-2vj7

Out-of-bounds read in FreeBSD kqueue copy-on-fork implementation

Priority LOW 32

kqueue_fork_copy_knote() indexed into the child's file descriptor table using a knote's file descriptor number without a bounds check.

CVSS 3.1HIGH 7.0 Local Low privileges No interaction EPSS 0.001 Published 2026-10-15 Fixed in p4 CWE-125
TI-2026-74610 CVE-2026-58099 · GHSA-f53j-rp59-76p7

Race condition and use after free in FreeBSD kqueue fork copy

Priority LOW 32

When copying knotes from a parent kqueue to a child, the copy code did not correctly exclude marker knotes (used internally to track list traversal position) before marking them as in-flux and releasing the kqueue lock.

CVSS 3.1HIGH 7.0 Local Low privileges No interaction EPSS 0.001 Published 2026-10-15 Fixed in p4 CWE-362