The branch main has been updated by kp:
URL:
https://cgit.FreeBSD.org/src/commit/?id=682c31db4ecfb8fc6cac0e8ad4945c03379ea3d1
commit 682c31db4ecfb8fc6cac0e8ad4945c03379ea3d1
Author: Evgeniy Khramtsov <2khramt...@gmail.com>
AuthorDate: 2021-02-01 19:03:57 +0000
Commit: Kristof Provost <k...@freebsd.org>
CommitDate: 2021-02-01 20:25:11 +0000
ipfw(8) crashes when ext6hdr option is omitted
Verify that the option is passed, error out if it's not.
The problem can be trivially triggered with `ipfw add allow ext6hdr`.
PR: 253169
Reviewed by: kp@
MFC after: 3 days
Differential Revision: https://reviews.freebsd.org/D28447
---
sbin/ipfw/ipfw2.c | 1 +
1 file changed, 1 insertion(+)
diff --git a/sbin/ipfw/ipfw2.c b/sbin/ipfw/ipfw2.c
index 67303d8bb1e7..19f7f331091d 100644
--- a/sbin/ipfw/ipfw2.c
+++ b/sbin/ipfw/ipfw2.c
@@ -4961,6 +4961,7 @@ read_options:
break;
case TOK_EXT6HDR:
+ NEED1("missing extension header");
fill_ext6hdr( cmd, *av );
av++;
break;
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