Files
linux/net/netfilter
Florian Westphal e469f1d213 netfilter: x_tables: fix compat match/target pad out-of-bound write
commit b29c457a65 upstream.

xt_compat_match/target_from_user doesn't check that zeroing the area
to start of next rule won't write past end of allocated ruleset blob.

Remove this code and zero the entire blob beforehand.

Reported-by: syzbot+cfc0247ac173f597aaaa@syzkaller.appspotmail.com
Reported-by: Andy Nguyen <theflow@google.com>
Fixes: 9fa492cdc1 ("[NETFILTER]: x_tables: simplify compat API")
Signed-off-by: Florian Westphal <fw@strlen.de>
Signed-off-by: Pablo Neira Ayuso <pablo@netfilter.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2023-05-16 10:52:20 +09:00
..
2017-12-16 16:25:46 +01:00
2016-10-20 19:59:59 +02:00
2010-07-15 17:20:46 +02:00
2011-07-01 16:11:15 -07:00
2011-07-01 16:11:15 -07:00
2014-08-23 12:21:21 -07:00
2015-09-24 09:34:41 +09:00
2015-05-14 13:00:27 +02:00
2023-05-16 08:54:26 +09:00
2016-09-22 03:13:26 -04:00