From: syzbot <syzbot+df0257c92ffd4fcc5...@syzkaller.appspotmail.com> Date: Thu, 03 May 2018 11:44:02 -0700
> Call Trace: > __dump_stack lib/dump_stack.c:17 [inline] > dump_stack+0x185/0x1d0 lib/dump_stack.c:53 > kmsan_report+0x142/0x240 mm/kmsan/kmsan.c:1067 > __msan_warning_32+0x6c/0xb0 mm/kmsan/kmsan_instr.c:683 > strcmp+0xf7/0x160 lib/string.c:329 > tipc_nl_node_get_link+0x220/0x6f0 net/tipc/node.c:1881 > genl_family_rcv_msg net/netlink/genetlink.c:599 [inline] Hmmm, TIPC_NL_LINK_GET uses tipc_nl_policy, which has a proper nesting entry for TIPC_NLA_LINK. I wonder how the code goes about validating TIPC_NLA_LINK_NAME in such a case? Does it? This may be the problem.
