audit: type=1400 audit(1578310052.917:36): avc: denied { map } for pid=7091 comm="syz-executor204" path="/root/syz-executor204034520" dev="sda1" ino=16483 scontext=unconfined_u:system_r:insmod_t:s0-s0:c0.c1023 tcontext=unconfined_u:object_r:user_home_t:s0 tclass=file permissive=1 ===================================== WARNING: bad unlock balance detected! 4.14.162-syzkaller #0 Not tainted ------------------------------------- syz-executor204/7111 is trying to release lock (sk_lock-AF_INET6) at: [] gtp_encap_enable_socket+0x10c/0x360 drivers/net/gtp.c:833 but there are no more locks to release! other info that might help us debug this: 2 locks held by syz-executor204/7111: #0: (rtnl_mutex){+.+.}, at: [] rtnl_lock net/core/rtnetlink.c:72 [inline] #0: (rtnl_mutex){+.+.}, at: [] rtnetlink_rcv_msg+0x339/0xb70 net/core/rtnetlink.c:4301 #1: (slock-AF_INET6){+...}, at: [] spin_lock_bh include/linux/spinlock.h:322 [inline] #1: (slock-AF_INET6){+...}, at: [] release_sock+0x20/0x1b0 net/core/sock.c:2777 stack backtrace: CPU: 1 PID: 7111 Comm: syz-executor204 Not tainted 4.14.162-syzkaller #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 Call Trace: __dump_stack lib/dump_stack.c:17 [inline] dump_stack+0x142/0x197 lib/dump_stack.c:58 print_unlock_imbalance_bug kernel/locking/lockdep.c:3548 [inline] print_unlock_imbalance_bug.cold+0x114/0x123 kernel/locking/lockdep.c:3525 __lock_release kernel/locking/lockdep.c:3765 [inline] lock_release+0x616/0x940 kernel/locking/lockdep.c:4013 sock_release_ownership include/net/sock.h:1430 [inline] release_sock+0x175/0x1b0 net/core/sock.c:2787 gtp_encap_enable_socket+0x10c/0x360 drivers/net/gtp.c:833 gtp_encap_enable drivers/net/gtp.c:855 [inline] gtp_newlink+0x99f/0xc50 drivers/net/gtp.c:670 rtnl_newlink+0xecb/0x1700 net/core/rtnetlink.c:2719 rtnetlink_rcv_msg+0x3da/0xb70 net/core/rtnetlink.c:4306 netlink_rcv_skb+0x14f/0x3c0 net/netlink/af_netlink.c:2432 rtnetlink_rcv+0x1d/0x30 net/core/rtnetlink.c:4318 netlink_unicast_kernel net/netlink/af_netlink.c:1286 [inline] netlink_unicast+0x44d/0x650 net/netlink/af_netlink.c:1312 netlink_sendmsg+0x7c4/0xc60 net/netlink/af_netlink.c:1877 sock_sendmsg_nosec net/socket.c:646 [inline] sock_sendmsg+0xce/0x110 net/socket.c:656 ___sys_sendmsg+0x70a/0x840 net/socket.c:2062 __sys_sendmsg+0xb9/0x140 net/socket.c:2096 SYSC_sendmsg net/socket.c:2107 [inline] SyS_sendmsg+0x2d/0x50 net/socket.c:2103 do_syscall_64+0x1e8/0x640 arch/x86/entry/common.c:292 entry_SYSCALL_64_after_hwframe+0x42/0xb7 RIP: 0033:0x446ce9 RSP: 002b:00007fa109c79db8 EFLAGS: 00000246 ORIG_RAX: 000000000000002e RAX: ffffffffffffffda RBX: 00000000006dbc38 RCX: 0000000000446ce9 RDX: 0000000000000000 RSI: 0000000020000180 RDI: 0000000000000003 RBP: 00000000006dbc30 R08: 0000000000000004 R09: 0000000000000000 R10: 0000000000000008 R11: 0000000000000246 R12: 00000000006dbc3c R13: 00007ffd6eefd73f R14: 00007fa109c7a9c0 R15: 000000000000002d