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GONG, Ruiqi 66594a1e6d netfilter: ebtables: fix fortify warnings in size_entry_mwt() 
[ Upstream commit a7ed3465da ]

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>
Signed-off-by: Sasha Levin <sashal@kernel.org>
History 2023-09-23 11:09:56 +02:00
..
6lowpan 6lowpan: iphc: Fix an off-by-one check of array index 2021-07-22 16:19:03 +02:00
9p 9p: virtio: make sure 'offs' is initialized in zc_request 2023-09-19 12:22:27 +02:00
802 mrp: introduce active flags to prevent UAF when applicant uninit 2022-12-31 13:14:42 +01:00
8021q vlan: fix a potential uninit-value in vlan_dev_hard_start_xmit() 2023-05-24 17:36:52 +01:00
appletalk net: socket: rework compat_ifreq_ioctl() 2021-07-23 14:20:25 +01:00
atm atm: hide unused procfs functions 2023-06-09 10:32:26 +02:00
ax25 net: ax25: Fix deadlock caused by skb_recv_datagram in ax25_recvmsg 2022-06-22 14:22:01 +02:00
batman-adv batman-adv: Hold rtnl lock during MTU update via netlink 2023-08-30 16:18:18 +02:00
bluetooth Bluetooth: Fix potential use-after-free when clear keys 2023-09-19 12:22:33 +02:00
bpf bpf: Move skb->len == 0 checks into __bpf_redirect 2022-12-31 13:14:11 +01:00
bpfilter bpfilter: Specify the log level for the kmsg message 2021-06-25 13:13:50 +02:00
bridge netfilter: ebtables: fix fortify warnings in size_entry_mwt() 2023-09-23 11:09:56 +02:00
caif net: caif: Fix use-after-free in cfusbl_device_notify() 2023-03-17 08:48:54 +01:00
can can: raw: add missing refcount for memory leak fix 2023-08-30 16:18:20 +02:00
ceph libceph: fix potential hang in ceph_osdc_notify() 2023-08-11 15:13:55 +02:00
core devlink: remove reload failed checks in params get/set callbacks 2023-09-23 11:09:55 +02:00
dcb net: dcb: choose correct policy to parse DCB_ATTR_BCN 2023-08-11 15:13:53 +02:00
dccp dccp: Fix out of bounds access in DCCP error handler 2023-09-19 12:22:52 +02:00
dns_resolver net: remove redundant 'depends on NET' 2021-01-27 17:04:12 -08:00
dsa net: dsa: tag_sja1105: fix MAC DA patching from meta frames 2023-07-23 13:47:30 +02:00
ethernet move netdev_boot_setup into Space.c 2021-08-03 13:05:26 +01:00
ethtool ethtool: Fix uninitialized number of lanes 2023-05-17 11:50:18 +02:00
hsr hsr: Fix uninit-value access in fill_frame_info() 2023-09-19 12:23:03 +02:00
ieee802154 net: ieee802154: fix error return code in dgram_bind() 2022-11-03 23:59:14 +09:00
ife net: remove redundant 'depends on NET' 2021-01-27 17:04:12 -08:00
ipv4 net: ipv4: fix one memleak in __inet_del_ifa() 2023-09-19 12:23:03 +02:00
ipv6 net: ipv6/addrconf: avoid integer underflow in ipv6_create_tempaddr 2023-09-19 12:22:58 +02:00
iucv net/iucv: Fix size of interrupt data 2023-03-22 13:31:28 +01:00
kcm kcm: Fix error handling for SOCK_DGRAM in kcm_sendmsg(). 2023-09-19 12:23:04 +02:00
key net: af_key: fix sadb_x_filter validation 2023-08-26 14:23:32 +02:00
l2tp inet6: Remove inet6_destroy_sock() in sk->sk_prot->destroy(). 2023-04-26 13:51:54 +02:00
l3mdev l3mdev: l3mdev_master_upper_ifindex_by_index_rcu should be using netdev_master_upper_dev_get_rcu 2022-04-27 14:38:53 +02:00
lapb net: lapb: Use list_for_each_entry() to simplify code in lapb_iface.c 2021-06-08 16:31:25 -07:00
llc llc: Don't drop packet from non-root netns. 2023-07-27 08:47:02 +02:00
mac80211 wifi: mac80211: check S1G action frame size 2023-09-23 11:09:56 +02:00
mac802154 mac802154: fix missing INIT_LIST_HEAD in ieee802154_if_add() 2022-12-14 11:37:25 +01:00
mctp net: mctp: purge receive queues on sk destruction 2023-02-06 07:59:02 +01:00
mpls net: mpls: fix stale pointer if allocation fails during device rename 2023-02-22 12:57:09 +01:00
mptcp mptcp: consolidate fallback and non fallback state machine 2023-07-05 18:25:04 +01:00
ncsi net/ncsi: change from ndo_set_mac_address to dev_set_mac_address 2023-08-30 16:18:16 +02:00
netfilter netfilter: nfnetlink_osf: avoid OOB read 2023-09-19 12:23:00 +02:00
netlabel netlabel: fix shift wrapping bug in netlbl_catmap_setlong() 2023-09-19 12:22:29 +02:00
netlink netlink: Add __sock_i_ino() for __netlink_diag_dump(). 2023-07-23 13:46:56 +02:00
netrom netrom: Deny concurrent connect(). 2023-09-19 12:22:35 +02:00
nfc net: nfc: Fix use-after-free caused by nfc_llcp_find_local 2023-07-23 13:46:56 +02:00
nsh net: nsh: Use correct mac_offset to unwind gso skb in nsh_gso_segment() 2023-05-24 17:36:51 +01:00
openvswitch net: openvswitch: fix possible memory leak in ovs_meter_cmd_set() 2023-02-22 12:57:09 +01:00
packet net/packet: annotate data-races around tp->status 2023-08-16 18:22:01 +02:00
phonet phonet: refcount leak in pep_sock_accep 2022-01-11 15:35:16 +01:00
psample psample: Add additional metadata attributes 2021-03-14 15:00:43 -07:00
qrtr net: qrtr: Fix an uninit variable access bug in qrtr_tx_resume() 2023-04-20 12:13:53 +02:00
rds rds: rds_rm_zerocopy_callback() correct order for list_add_tail() 2023-03-10 09:39:16 +01:00
rfkill rfkill: make new event layout opt-in 2022-04-08 14:23:00 +02:00
rose net/rose: Fix to not accept on connected socket 2023-02-22 12:57:02 +01:00
rxrpc rxrpc: Fix hard call timeout units 2023-05-17 11:50:17 +02:00
sched net: sched: sch_qfq: Fix UAF in qfq_dequeue() 2023-09-19 12:22:59 +02:00
sctp sctp: annotate data-races around sk->sk_wmem_queued 2023-09-19 12:22:58 +02:00
smc net/smc: use smc_lgr_list.lock to protect smc_lgr_list.list iterate in smcr_port_add 2023-09-19 12:23:03 +02:00
strparser bpf: sockmap, strparser, and tls are reusing qdisc_skb_cb and colliding 2021-11-18 19:17:11 +01:00
sunrpc xprtrdma: Remap Receive buffers after a reconnect 2023-08-30 16:18:10 +02:00
switchdev net: make switchdev_bridge_port_{,unoffload} loosely coupled with the bridge 2021-08-04 12:35:07 +01:00
tipc tipc: stop tipc crypto on failure in tipc_node_create 2023-08-03 10:22:37 +02:00
tls net/tls: do not free tls_rec on async operation in bpf_exec_tx_verdict() 2023-09-19 12:23:04 +02:00
unix af_unix: Fix data-race around unix_tot_inflight. 2023-09-19 12:22:59 +02:00
vmw_vsock vsock: avoid to close connected socket after the timeout 2023-05-24 17:36:49 +01:00
wireless wifi: nl80211/cfg80211: add forgotten nla_policy for BSS color attribute 2023-09-19 12:22:34 +02:00
x25 net/x25: Fix to not accept on connected socket 2023-02-09 11:26:40 +01:00
xdp xsk: Fix xsk_diag use-after-free error during socket cleanup 2023-09-19 12:22:58 +02:00
xfrm xfrm: add forgotten nla_policy for XFRMA_MTIMER_THRESH 2023-08-26 14:23:33 +02:00
compat.c net: Return the correct errno code 2021-06-03 15:13:56 -07:00
devres.c net: devres: Correct a grammatical error 2021-06-11 12:55:28 -07:00
Kconfig Remove DECnet support from kernel 2023-06-21 15:59:15 +02:00
Makefile Remove DECnet support from kernel 2023-06-21 15:59:15 +02:00
socket.c net: Avoid address overwrite in kernel_connect 2023-09-19 12:22:30 +02:00
sysctl_net.c net: Ensure net namespace isolation of sysctls 2021-04-12 13:27:11 -07:00