[Bug 259645] crash in_cksumdata (sys/amd64/amd64/in_cksum.c:113) via in4_cksum (sys/netpfil/pf/in4_cksum.c:117) after FreeBSD 13.0 p5 update
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Date: Wed, 24 Nov 2021 18:39:50 UTC
https://bugs.freebsd.org/bugzilla/show_bug.cgi?id=259645
--- Comment #17 from commit-hook@FreeBSD.org ---
A commit in branch main references this bug:
URL:
https://cgit.FreeBSD.org/src/commit/?id=0d9c3423f59bb305301f5a5bc7c8f5daf7b7aa52
commit 0d9c3423f59bb305301f5a5bc7c8f5daf7b7aa52
Author: Mark Johnston <markj@FreeBSD.org>
AuthorDate: 2021-11-24 18:19:54 +0000
Commit: Mark Johnston <markj@FreeBSD.org>
CommitDate: 2021-11-24 18:31:16 +0000
netinet: Implement in_cksum_skip() using m_apply()
This allows it to work with unmapped mbufs. In particular,
in_cksum_skip() calls no longer need to be preceded by calls to
mb_unmapped_to_ext() to avoid a page fault.
PR: 259645
Reviewed by: gallatin, glebius, jhb
MFC after: 1 week
Sponsored by: The FreeBSD Foundation
Differential Revision: https://reviews.freebsd.org/D33096
sys/netinet/in_cksum.c | 63 +++++++++++++++++++++++++-------------------------
1 file changed, 32 insertions(+), 31 deletions(-)
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