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linux/net/ipv6/netfilter
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Florian Westphal 1f3b9000cb 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>
History 2021-04-16 11:43:21 +02:00
..
ip6_tables.c netfilter: x_tables: fix compat match/target pad out-of-bound write 2021-04-16 11:43:21 +02:00
ip6t_ah.c netfilter: ip6tables: Remove redundant null checks 2020-07-29 20:39:43 +02:00
ip6t_eui64.c treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 500 2019-06-19 17:09:55 +02:00
ip6t_frag.c netfilter: ip6tables: Remove redundant null checks 2020-07-29 20:39:43 +02:00
ip6t_hbh.c netfilter: ip6tables: Remove redundant null checks 2020-07-29 20:39:43 +02:00
ip6t_ipv6header.c netfilter: move inline nf_ip6_ext_hdr() function to a more appropriate header. 2019-09-13 12:34:09 +02:00
ip6t_mh.c treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 500 2019-06-19 17:09:55 +02:00
ip6t_NPT.c netfilter: ip6t_NPT: rewrite addresses in ICMPv6 original packet 2020-08-28 19:18:48 +02:00
ip6t_REJECT.c treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 152 2019-05-30 11:26:32 -07:00
ip6t_rpfilter.c netfilter: Fix rpfilter dropping vrf packets by mistake 2019-07-16 13:16:47 +02:00
ip6t_rt.c netfilter: ip6tables: Remove redundant null checks 2020-07-29 20:39:43 +02:00
ip6t_srh.c treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 152 2019-05-30 11:26:32 -07:00
ip6t_SYNPROXY.c netfilter: Add MODULE_DESCRIPTION entries to kernel modules 2020-06-25 00:50:31 +02:00
ip6table_filter.c netfilter: ip6tables: Add a .pre_exit hook in all ip6table_foo.c. 2020-06-25 00:50:31 +02:00
ip6table_mangle.c netfilter: use actual socket sk rather than skb sk when routing harder 2020-10-30 12:57:39 +01:00
ip6table_nat.c netfilter: ip6tables: Add a .pre_exit hook in all ip6table_foo.c. 2020-06-25 00:50:31 +02:00
ip6table_raw.c netfilter: ip6tables: Add a .pre_exit hook in all ip6table_foo.c. 2020-06-25 00:50:31 +02:00
ip6table_security.c netfilter: ip6tables: Add a .pre_exit hook in all ip6table_foo.c. 2020-06-25 00:50:31 +02:00
Kconfig treewide: replace '---help---' in Kconfig files with 'help' 2020-06-14 01:57:21 +09:00
Makefile netfilter: x_tables: merge ip and ipv6 masquerade modules 2019-04-11 20:59:29 +02:00
nf_conntrack_reasm.c ipv6: Remove dependency of ipv6_frag_thdr_truncated on ipv6 module 2020-11-19 10:49:50 -08:00
nf_defrag_ipv6_hooks.c treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 500 2019-06-19 17:09:55 +02:00
nf_dup_ipv6.c netfilter: drop bridge nf reset from nf_reset 2019-10-01 18:42:15 +02:00
nf_flow_table_ipv6.c netfilter: Add MODULE_DESCRIPTION entries to kernel modules 2020-06-25 00:50:31 +02:00
nf_log_ipv6.c netfilter: nf_log: missing vlan offload tag and proto 2020-10-14 01:25:14 +02:00
nf_reject_ipv6.c netfilter: introduce support for reject at prerouting stage 2020-06-30 18:21:02 +02:00
nf_socket_ipv6.c treewide: Remove uninitialized_var() usage 2020-07-16 12:35:15 -07:00
nf_tproxy_ipv6.c netfilter: nft_tproxy: Fix typo in IPv6 module description. 2019-10-17 12:21:11 +02:00
nft_dup_ipv6.c netfilter: Add MODULE_DESCRIPTION entries to kernel modules 2020-06-25 00:50:31 +02:00
nft_fib_ipv6.c netfilter: Add MODULE_DESCRIPTION entries to kernel modules 2020-06-25 00:50:31 +02:00
nft_reject_ipv6.c netfilter: Add MODULE_DESCRIPTION entries to kernel modules 2020-06-25 00:50:31 +02:00