[ 30.758461] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_batadv: link becomes ready [ 30.767108] IPv6: ADDRCONF(NETDEV_CHANGE): macvtap0: link becomes ready [ 30.776292] batman_adv: batadv0: Interface activated: batadv_slave_1 [ 30.783052] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_batadv: link becomes ready [ 30.919151] IPv6: ADDRCONF(NETDEV_CHANGE): bond0: link becomes ready [ 30.941899] syz-executor.0 (7956) used greatest stack depth: 24048 bytes left [ 31.320987] can: request_module (can-proto-0) failed. [ 31.330683] can: request_module (can-proto-0) failed. [ 31.339168] can: request_module (can-proto-0) failed. [ 41.193951] unregister_netdevice: waiting for ip6gre0 to become free. Usage count = -1 [ 51.241531] unregister_netdevice: waiting for ip6gre0 to become free. Usage count = -1 Warning: Permanently added '10.128.10.3' (ECDSA) to the list of known hosts. [ 51.596915] INFO: trying to register non-static key. [ 51.602035] the code is fine but needs lockdep annotation. [ 51.607749] turning off the locking correctness validator. [ 51.613351] CPU: 0 PID: 8288 Comm: syz-executor110 Not tainted 4.14.275-syzkaller #0 [ 51.621206] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 51.630533] Call Trace: [ 51.633103] dump_stack+0x14b/0x1e7 [ 51.636705] register_lock_class+0x2dd/0x1300 [ 51.641172] ? __lock_acquire+0x701/0x42d0 [ 51.645392] ? trace_hardirqs_on+0x10/0x10 [ 51.649610] ? static_obj+0x50/0x50 [ 51.653218] ? trace_hardirqs_on+0x10/0x10 [ 51.657425] __lock_acquire+0x18b/0x42d0 [ 51.661460] ? trace_hardirqs_on+0x10/0x10 [ 51.665675] ? trace_hardirqs_on+0x10/0x10 [ 51.669877] ? __lock_acquire+0x701/0x42d0 [ 51.674079] ? trace_hardirqs_on+0x10/0x10 [ 51.678321] lock_acquire+0x17e/0x3e0 [ 51.682103] ? ieee802154_del_devkey+0x45/0x80 [ 51.686658] ? ieee802154_del_devkey+0x45/0x80 [ 51.691216] __mutex_lock+0xed/0x1490 [ 51.694988] ? ieee802154_del_devkey+0x45/0x80 [ 51.699543] ? rtnl_lock+0x12/0x20 [ 51.703055] ? ieee802154_del_devkey+0x45/0x80 [ 51.707609] ? __ww_mutex_wakeup_for_backoff+0x250/0x250 [ 51.713038] ? __mutex_lock+0x71c/0x1490 [ 51.717085] ? nla_parse+0x197/0x250 [ 51.720783] ? ieee802154_llsec_parse_key_id+0xb7/0x360 [ 51.726126] ? ieee802154_llsec_parse_dev_addr+0x360/0x360 [ 51.731724] mutex_lock_nested+0x16/0x20 [ 51.735840] ? mutex_lock_nested+0x16/0x20 [ 51.740050] ieee802154_del_devkey+0x45/0x80 [ 51.744432] nl802154_del_llsec_devkey+0x243/0x360 [ 51.749333] ? nl802154_add_llsec_devkey+0x400/0x400 [ 51.754411] ? nl802154_pre_doit+0x132/0xa40 [ 51.758892] ? security_capable+0x6f/0xa0 [ 51.763008] ? llsec_parse_seclevel+0x3b2/0x3f0 [ 51.767650] genl_family_rcv_msg+0x57f/0xfe0 [ 51.772029] ? genl_rcv+0x40/0x40 [ 51.775468] genl_rcv_msg+0xa7/0x140 [ 51.779150] netlink_rcv_skb+0x12f/0x3b0 [ 51.783189] ? genl_family_rcv_msg+0xfe0/0xfe0 [ 51.787744] ? netlink_ack+0xaa0/0xaa0 [ 51.791605] genl_rcv+0x23/0x40 [ 51.794853] netlink_unicast+0x40b/0x610 [ 51.798883] ? netlink_sendskb+0x40/0x40 [ 51.802912] netlink_sendmsg+0x651/0xc10 [ 51.806944] ? nlmsg_notify+0x140/0x140 [ 51.810898] ? nlmsg_notify+0x140/0x140 [ 51.814850] sock_sendmsg+0xac/0xf0 [ 51.818449] ___sys_sendmsg+0x625/0x920 [ 51.822399] ? __lock_acquire+0x701/0x42d0 [ 51.826616] ? exit_to_usermode_loop+0x14a/0x190 [ 51.831462] ? do_syscall_64+0x416/0x5b0 [ 51.835506] ? copy_msghdr_from_user+0x440/0x440 [ 51.840260] ? __lock_acquire+0x701/0x42d0 [ 51.844554] ? debug_check_no_obj_freed+0x2d5/0x890 [ 51.849542] ? trace_hardirqs_on+0x10/0x10 [ 51.853745] ? mntput_no_expire+0xb1/0x760 [ 51.857957] ? lock_downgrade+0x7f0/0x7f0 [ 51.862074] ? __fdget+0xe/0x10 [ 51.865337] ? sockfd_lookup_light+0x1c/0x160 [ 51.869801] __sys_sendmsg+0xc1/0x140 [ 51.873571] ? SyS_shutdown+0x180/0x180 [ 51.877523] ? lock_downgrade+0x7f0/0x7f0 [ 51.881637] ? trace_hardirqs_on_caller+0x3bb/0x570 [ 51.886626] ? do_syscall_64+0x4c/0x5b0 [ 51.890574] ? __sys_sendmsg+0x140/0x140 [ 51.894603] SyS_sendmsg+0xd/0x20 [ 51.898025] do_syscall_64+0x1c7/0x5b0 [ 51.901879] ? trace_hardirqs_off_thunk+0x1a/0x1c [ 51.906692] entry_SYSCALL_64_after_hwframe+0x46/0xbb [ 51.911849] RIP: 0033:0x7fecf7806609 [ 51.915528] RSP: 002b:00007ffe36df41a8 EFLAGS: 00000246 ORIG_RAX: 000000000000002e [ 51.923234] RAX: ffffffffffffffda RBX: 0000000000000000 RCX: 00007fecf7806609 [ 51.930473] RDX: 0000000000040800 RSI: 0000000020000240 RDI: 0000000000000004 [ 51.937713] RBP: 00007fecf77c9fd0 R08: 0000000000000002 R09: 0000000000000000 [ 51.944952] R10: 000000000000000c R11: