RBP: 00007f7b0c6af1d0 R08: 0000000000000000 R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000002 R13: 00007ffd7b0ab31f R14: 00007f7b0c6af300 R15: 0000000000022000 ------------[ cut here ]------------ ODEBUG: assert_init not available (active state 0) object type: timer_list hint: (null) WARNING: CPU: 1 PID: 9967 at lib/debugobjects.c:329 debug_print_object+0x168/0x210 lib/debugobjects.c:326 Kernel panic - not syncing: panic_on_warn set ... CPU: 1 PID: 9967 Comm: syz-executor.1 Not tainted 4.18.0-syzkaller #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 Call Trace: __dump_stack lib/dump_stack.c:77 [inline] dump_stack+0x15a/0x20d lib/dump_stack.c:113 panic+0x1c6/0x36b kernel/panic.c:184 __warn.cold.7+0x120/0x168 kernel/panic.c:536 report_bug+0x1a1/0x200 lib/bug.c:186 fixup_bug arch/x86/kernel/traps.c:178 [inline] fixup_bug arch/x86/kernel/traps.c:173 [inline] do_error_trap+0x200/0x350 arch/x86/kernel/traps.c:296 do_invalid_op+0x1b/0x20 arch/x86/kernel/traps.c:316 invalid_op+0x14/0x20 arch/x86/entry/entry_64.S:992 RIP: 0010:debug_print_object+0x168/0x210 lib/debugobjects.c:326 Code: 0f 88 48 89 fa 48 c1 ea 03 80 3c 02 00 0f 85 92 00 00 00 48 8b 14 dd e0 60 0f 88 4c 89 fe 48 c7 c7 60 55 0f 88 e8 bb 7f f2 fd <0f> 0b 83 05 ab 38 0d 07 01 48 83 c4 18 5b 41 5c 41 5d 41 5e 41 5f RSP: 0018:ffff8800a2736b80 EFLAGS: 00010086 RAX: 0000000000000000 RBX: 0000000000000005 RCX: 0000000000000000 RDX: 0000000000000001 RSI: 0000000000000008 RDI: ffffffff8b410d20 RBP: ffff8800a2736bc0 R08: ffffed00174e3cfb R09: ffffed00174e3cfa R10: ffffed00174e3cfa R11: ffff8800ba71e7d7 R12: 0000000000000001 R13: ffffffff8937dc40 R14: ffffffff814d3b20 R15: ffffffff880f5b60 debug_object_assert_init lib/debugobjects.c:692 [inline] debug_object_assert_init+0x261/0x370 lib/debugobjects.c:663 debug_timer_assert_init kernel/time/timer.c:724 [inline] debug_assert_init kernel/time/timer.c:776 [inline] del_timer+0x74/0x100 kernel/time/timer.c:1198 try_to_grab_pending+0x215/0x5f0 kernel/workqueue.c:1223 __cancel_work_timer+0x9b/0x430 kernel/workqueue.c:2948 cancel_delayed_work_sync+0xe/0x10 kernel/workqueue.c:3121 batadv_nc_mesh_free+0x3e/0x116 net/batman-adv/network-coding.c:1888 batadv_mesh_free+0x80/0x170 net/batman-adv/main.c:241 batadv_mesh_init+0x531/0x600 net/batman-adv/main.c:222 batadv_softif_init_late+0xad6/0xdb0 net/batman-adv/soft-interface.c:848 register_netdevice+0x269/0xf60 net/core/dev.c:7932 rtnl_newlink+0xf84/0x1310 net/core/rtnetlink.c:3066 rtnetlink_rcv_msg+0x34f/0x950 net/core/rtnetlink.c:4665 netlink_rcv_skb+0x142/0x390 net/netlink/af_netlink.c:2455 rtnetlink_rcv+0x10/0x20 net/core/rtnetlink.c:4683 netlink_unicast_kernel net/netlink/af_netlink.c:1317 [inline] netlink_unicast+0x443/0x660 net/netlink/af_netlink.c:1343 netlink_sendmsg+0x667/0xc60 net/netlink/af_netlink.c:1908 sock_sendmsg_nosec net/socket.c:642 [inline] sock_sendmsg+0xac/0xf0 net/socket.c:652 ___sys_sendmsg+0x647/0x950 net/socket.c:2126 __sys_sendmsg+0xd9/0x180 net/socket.c:2164 __do_sys_sendmsg net/socket.c:2173 [inline] __se_sys_sendmsg net/socket.c:2171 [inline] __x64_sys_sendmsg+0x73/0xb0 net/socket.c:2171 do_syscall_64+0xda/0x540 arch/x86/entry/common.c:290 entry_SYSCALL_64_after_hwframe+0x49/0xbe RIP: 0033:0x7f7b0cf39a39 Code: ff ff c3 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 40 00 48 89 f8 48 89 f7 48 89 d6 48 89 ca 4d 89 c2 4d 89 c8 4c 8b 4c 24 08 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 c7 c1 bc ff ff ff f7 d8 64 89 01 48 RSP: 002b:00007f7b0c6af188 EFLAGS: 00000246 ORIG_RAX: 000000000000002e RAX: ffffffffffffffda RBX: 00007f7b0d03cf60 RCX: 00007f7b0cf39a39 RDX: 0000000000000000 RSI: 0000000020000140 RDI: 0000000000000003 RBP: 00007f7b0c6af1d0 R08: 0000000000000000 R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000002 R13: 00007ffd7b0ab31f R14: 00007f7b0c6af300 R15: 0000000000022000 Kernel Offset: disabled Rebooting in 86400 seconds..