linux/net/bridge
GONG, Ruiqi a7ed3465da netfilter: ebtables: fix fortify warnings in size_entry_mwt()
When compiling with gcc 13 and CONFIG_FORTIFY_SOURCE=y, the following
warning appears:

In function ‘fortify_memcpy_chk’,
    inlined from ‘size_entry_mwt’ at net/bridge/netfilter/ebtables.c:2118:2:
./include/linux/fortify-string.h:592:25: error: call to ‘__read_overflow2_field’
declared with attribute warning: detected read beyond size of field (2nd parameter);
maybe use struct_group()? [-Werror=attribute-warning]
  592 |                         __read_overflow2_field(q_size_field, size);
      |                         ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~

The compiler is complaining:

memcpy(&offsets[1], &entry->watchers_offset,
                       sizeof(offsets) - sizeof(offsets[0]));

where memcpy reads beyong &entry->watchers_offset to copy
{watchers,target,next}_offset altogether into offsets[]. Silence the
warning by wrapping these three up via struct_group().

Signed-off-by: GONG, Ruiqi <gongruiqi1@huawei.com>
Reviewed-by: Gustavo A. R. Silva <gustavoars@kernel.org>
Reviewed-by: Kees Cook <keescook@chromium.org>
Signed-off-by: Florian Westphal <fw@strlen.de>
2023-08-22 15:13:20 +02:00
..
netfilter netfilter: ebtables: fix fortify warnings in size_entry_mwt() 2023-08-22 15:13:20 +02:00
br_arp_nd_proxy.c bridge: Add per-{Port, VLAN} neighbor suppression data path support 2023-04-21 08:25:50 +01:00
br_cfm_netlink.c
br_cfm.c bridge: cfm: remove redundant return 2021-06-22 10:35:15 -07:00
br_device.c skbuff: bridge: Add layer 2 miss indication 2023-05-30 23:37:00 -07:00
br_fdb.c bridge: switchdev: Allow device drivers to install locked FDB entries 2022-11-09 19:06:13 -08:00
br_forward.c bridge: Add backup nexthop ID support 2023-07-19 10:53:49 +01:00
br_if.c net: bridge: keep ports without IFF_UNICAST_FLT in BR_PROMISC mode 2023-07-03 09:11:34 +01:00
br_input.c skbuff: bridge: Add layer 2 miss indication 2023-05-30 23:37:00 -07:00
br_ioctl.c Merge git://git.kernel.org/pub/scm/linux/kernel/git/bpf/bpf-next 2021-12-31 14:35:40 +00:00
br_mdb.c rtnetlink: bridge: mcast: Relax group address validation in common code 2023-03-17 08:05:49 +00:00
br_mrp_netlink.c
br_mrp_switchdev.c
br_mrp.c net: bridge: mrp: Update the Test frames for MRA 2021-06-28 15:46:10 -07:00
br_mst.c net: bridge: mst: Add helper to query a port's MST state 2022-03-17 16:49:58 -07:00
br_multicast_eht.c treewide: Convert del_timer*() to timer_shutdown*() 2022-12-25 13:38:09 -08:00
br_multicast.c net: bridge: Add netlink knobs for number / maximum MDB entries 2023-02-06 08:48:26 +00:00
br_netfilter_hooks.c Merge git://git.kernel.org/pub/scm/linux/kernel/git/netdev/net 2023-04-20 16:29:51 -07:00
br_netfilter_ipv6.c netfilter: move br_nf_check_hbh_len to utils 2023-03-08 14:25:40 +01:00
br_netlink_tunnel.c net: bridge: Set strict_start_type at two policies 2023-02-06 08:48:25 +00:00
br_netlink.c bridge: Add backup nexthop ID support 2023-07-19 10:53:49 +01:00
br_nf_core.c net: dst: Switch to rcuref_t reference counting 2023-03-28 18:52:28 -07:00
br_private_cfm.h
br_private_mcast_eht.h net: bridge: multicast: use multicast contexts instead of bridge or port 2021-07-20 05:41:19 -07:00
br_private_mrp.h net: bridge: mrp: Update the Test frames for MRA 2021-06-28 15:46:10 -07:00
br_private_stp.h
br_private_tunnel.h bridge: always declare tunnel functions 2023-05-17 21:28:58 -07:00
br_private.h bridge: Remove unused declaration br_multicast_set_hash_max() 2023-07-27 17:11:29 -07:00
br_stp_bpdu.c
br_stp_if.c net: use eth_hw_addr_set() 2021-10-02 14:18:25 +01:00
br_stp_timer.c
br_stp.c net: bridge: mst: Multiple Spanning Tree (MST) mode 2022-03-17 16:49:57 -07:00
br_switchdev.c net: switchdev: Add a helper to replay objects on a bridge port 2023-07-21 08:54:03 +01:00
br_sysfs_br.c bridge: Fix flushing of dynamic FDB entries 2022-11-02 20:47:09 -07:00
br_sysfs_if.c bridge: move from strlcpy with unused retval to strscpy 2022-08-22 17:57:30 -07:00
br_vlan_options.c bridge: vlan: Allow setting VLAN neighbor suppression state 2023-04-21 08:25:50 +01:00
br_vlan_tunnel.c bridge: Add backup nexthop ID support 2023-07-19 10:53:49 +01:00
br_vlan.c bridge: vlan: Allow setting VLAN neighbor suppression state 2023-04-21 08:25:50 +01:00
br.c net: switchdev: Add a helper to replay objects on a bridge port 2023-07-21 08:54:03 +01:00
Kconfig
Makefile net: bridge: mst: Multiple Spanning Tree (MST) mode 2022-03-17 16:49:57 -07:00