FreeBSD Bugzilla – Attachment 225811 Details for
Bug 256439
if_bridge(4): Kernel panic on FreeBSD 13.0-RELEASE: bridge_rthash
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[patch]
proposed patch
diff (text/plain), 779 bytes, created by
Mark Johnston
on 2021-06-14 20:59:26 UTC
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Description:
proposed patch
Filename:
MIME Type:
Creator:
Mark Johnston
Created:
2021-06-14 20:59:26 UTC
Size:
779 bytes
patch
obsolete
>commit 2519e3d90949531711c5345da5f5e4577a749a29 >Author: Mark Johnston <markj@FreeBSD.org> >Date: Mon Jun 14 16:52:21 2021 -0400 > > 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. > > PR: 256439 > Fixes: f355cb3e6 > >diff --git a/sys/netpfil/ipfw/ip_fw_pfil.c b/sys/netpfil/ipfw/ip_fw_pfil.c >index e21831c80ec6..01a44df47180 100644 >--- a/sys/netpfil/ipfw/ip_fw_pfil.c >+++ b/sys/netpfil/ipfw/ip_fw_pfil.c >@@ -371,6 +371,8 @@ ipfw_check_frame(pfil_packet_t p, struct ifnet *ifp, int flags, > } > > ipfw = ipfw_chk(&args); >+ if (!mem) >+ *p.m = args.m; > > ret = PFIL_PASS; > switch (ipfw) {
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