Xin Long 1c075b192f tipc: fix the msg->req tlv len check in tipc_nl_compat_name_table_dump_header ... This is a follow-up for commit 974cb0e3e7 ("tipc: fix uninit-value in tipc_nl_compat_name_table_dump") where it should have type casted sizeof(..) to int to work when TLV_GET_DATA_LEN() returns a negative value. syzbot reported a call trace because of it: BUG: KMSAN: uninit-value in ... tipc_nl_compat_name_table_dump+0x841/0xea0 net/tipc/netlink_compat.c:934 __tipc_nl_compat_dumpit+0xab2/0x1320 net/tipc/netlink_compat.c:238 tipc_nl_compat_dumpit+0x991/0xb50 net/tipc/netlink_compat.c:321 tipc_nl_compat_recv+0xb6e/0x1640 net/tipc/netlink_compat.c:1324 genl_family_rcv_msg_doit net/netlink/genetlink.c:731 [inline] genl_family_rcv_msg net/netlink/genetlink.c:775 [inline] genl_rcv_msg+0x103f/0x1260 net/netlink/genetlink.c:792 netlink_rcv_skb+0x3a5/0x6c0 net/netlink/af_netlink.c:2501 genl_rcv+0x3c/0x50 net/netlink/genetlink.c:803 netlink_unicast_kernel net/netlink/af_netlink.c:1319 [inline] netlink_unicast+0xf3b/0x1270 net/netlink/af_netlink.c:1345 netlink_sendmsg+0x1288/0x1440 net/netlink/af_netlink.c:1921 sock_sendmsg_nosec net/socket.c:714 [inline] sock_sendmsg net/socket.c:734 [inline] Reported-by: syzbot+e5dbaaa238680ce206ea@syzkaller.appspotmail.com Fixes: 974cb0e3e7 ("tipc: fix uninit-value in tipc_nl_compat_name_table_dump") Signed-off-by: Xin Long <lucien.xin@gmail.com> Link: https://lore.kernel.org/r/ccd6a7ea801b15aec092c3b532a883b4c5708695.1667594933.git.lucien.xin@gmail.com Signed-off-by: Jakub Kicinski <kuba@kernel.org>		2022-11-07 19:53:40 -08:00
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addr.c
addr.h
bcast.c
bcast.h
bearer.c
bearer.h
core.c
core.h
crypto.c
crypto.h
diag.c
discover.c	tipc: Fix recognition of trial period	2022-10-14 08:17:52 +01:00
discover.h
eth_media.c
group.c
group.h
ib_media.c
Kconfig
link.c
link.h
Makefile
monitor.c
monitor.h
msg.c
msg.h
name_distr.c
name_distr.h
name_table.c
name_table.h
net.c
net.h
netlink.c
netlink.h
netlink_compat.c	tipc: fix the msg->req tlv len check in tipc_nl_compat_name_table_dump_header	2022-11-07 19:53:40 -08:00
node.c
node.h
socket.c	treewide: use prandom_u32_max() when possible, part 1	2022-10-11 17:42:55 -06:00
socket.h
subscr.c
subscr.h
sysctl.c
topsrv.c	tipc: fix a null-ptr-deref in tipc_topsrv_accept	2022-10-20 21:08:17 -07:00
topsrv.h
trace.c
trace.h
udp_media.c
udp_media.h