Date: Wed, 16 Jun 2021 14:02:36 UTC
https://bugs.freebsd.org/bugzilla/show_bug.cgi?id=256439 --- Comment #34 from commit-hook@FreeBSD.org --- A commit in branch main references this bug: URL: https://cgit.FreeBSD.org/src/commit/?id=bc6a2267fffeafd3946637607a74cfd639398f9d commit bc6a2267fffeafd3946637607a74cfd639398f9d Author: Mark Johnston <markj@FreeBSD.org> AuthorDate: 2021-06-16 13:46:56 +0000 Commit: Mark Johnston <markj@FreeBSD.org> CommitDate: 2021-06-16 13:46:56 +0000 ipfw: Update the pfil mbuf pointer in ipfw_check_frame() ipfw_chk() might call m_pullup() and thus can change the mbuf chain head. In this case, the new chain head has to be returned to the pfil hook caller, otherwise the pfil hook caller is left with a dangling pointer. Note that this affects only the link-layer hooks installed when the net.link.ether.ipfw sysctl is set to 1. PR: 256439, 254015, 255069, 255104 Fixes: f355cb3e6 Reviewed by: ae MFC after: 3 days Sponsored by: The FreeBSD Foundation Differential Revision: https://reviews.freebsd.org/D30764 sys/netpfil/ipfw/ip_fw_pfil.c | 2 ++ 1 file changed, 2 insertions(+) -- You are receiving this mail because: You are on the CC list for the bug. You are the assignee for the bug.