[Bug 278394] Reproducible kernel panic related to IPv4 routes populated by bird2 (BGP)
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Date: Wed, 22 May 2024 23:02:43 UTC
https://bugs.freebsd.org/bugzilla/show_bug.cgi?id=278394
--- Comment #29 from commit-hook@FreeBSD.org ---
A commit in branch releng/14.1 references this bug:
URL:
https://cgit.FreeBSD.org/src/commit/?id=34db75d21876ae406ff57fdc594f151fc4214109
commit 34db75d21876ae406ff57fdc594f151fc4214109
Author: Zhenlei Huang <zlei@FreeBSD.org>
AuthorDate: 2024-05-20 12:14:07 +0000
Commit: Zhenlei Huang <zlei@FreeBSD.org>
CommitDate: 2024-05-22 23:00:03 +0000
if_vxlan(4): Add checking for loops and nesting of tunnels
User misconfiguration, either tunnel loops, or a large number of
different nested tunnels, can overflow the kernel stack. Prevent that
by using if_tunnel_check_nesting().
PR: 278394
Diagnosed by: markj
Reviewed by: kp
Approved by: re (cperciva)
MFC after: 1 week
Differential Revision: https://reviews.freebsd.org/D45197
(cherry picked from commit 93fbfef0b50354b7a1620822454ef29cd415cb2d)
(cherry picked from commit 3ebd2b1c730834123a53b3eddcf9029fcf414782)
sys/net/if_vxlan.c | 23 +++++++++++++++++++++++
1 file changed, 23 insertions(+)
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