CVE-2021-29627

CVE-2021-29627 affects FreeBSD: 12.2-RELEASE before p6, 12.2-STABLE before r369525, 13.0-RC4 before p0, and 13.0-STABLE before n245050. The root cause is a bug in accept_filter(9) handling: when an accept filter with an accf_create callback is used, the kernel incorrectly frees the process-suppli...