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ODEBUG: assert_init not available (active state 0) object type: timer_list hint:           (null)
WARNING: CPU: 1 PID: 2643 at lib/debugobjects.c:325 debug_print_object+0x160/0x250 lib/debugobjects.c:325
Kernel panic - not syncing: panic_on_warn set ...

CPU: 1 PID: 2643 Comm: syz-executor155 Not tainted 4.19.211-syzkaller #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/21/2023
Call Trace:
 __dump_stack lib/dump_stack.c:77 [inline]
 dump_stack+0x1fc/0x2ef lib/dump_stack.c:118
 panic+0x26a/0x50e kernel/panic.c:186
 __warn.cold+0x20/0x5a kernel/panic.c:541
 report_bug+0x262/0x2b0 lib/bug.c:183
 fixup_bug arch/x86/kernel/traps.c:178 [inline]
 fixup_bug arch/x86/kernel/traps.c:173 [inline]
 do_error_trap+0x1d7/0x310 arch/x86/kernel/traps.c:296
 invalid_op+0x14/0x20 arch/x86/entry/entry_64.S:1038
RIP: 0010:debug_print_object+0x160/0x250 lib/debugobjects.c:325
Code: dd 20 f1 b3 88 48 89 fa 48 c1 ea 03 80 3c 02 00 0f 85 bf 00 00 00 48 8b 14 dd 20 f1 b3 88 48 c7 c7 40 e5 b3 88 e8 65 92 7b 04 <0f> 0b 83 05 73 e6 af 07 01 48 83 c4 20 5b 5d 41 5c 41 5d c3 48 89
RSP: 0018:ffff8881429b6c10 EFLAGS: 00010086
RAX: 0000000000000000 RBX: 0000000000000005 RCX: 0000000000000000
RDX: 0000000000000000 RSI: ffffffff814dff01 RDI: ffffed1028536d74
RBP: 0000000000000001 R08: 0000000000000001 R09: 0000000000000000
R10: 0000000000000005 R11: ffffffff8c66505b R12: ffffffff89f90a40
R13: ffffffff815313f0 R14: ffff8881429c1500 R15: 1ffff11028536d8d
 debug_object_assert_init lib/debugobjects.c:694 [inline]
 debug_object_assert_init+0x1f0/0x2e0 lib/debugobjects.c:665
 debug_timer_assert_init kernel/time/timer.c:733 [inline]
 debug_assert_init kernel/time/timer.c:785 [inline]
 del_timer+0x6d/0x100 kernel/time/timer.c:1210
 try_to_grab_pending+0x2b6/0x6f0 kernel/workqueue.c:1224
 __cancel_work_timer+0xa6/0x590 kernel/workqueue.c:2972
 batadv_nc_mesh_free+0x41/0x120 net/batman-adv/network-coding.c:1884
 batadv_mesh_free+0x7d/0x170 net/batman-adv/main.c:242
 batadv_mesh_init+0x5b7/0x690 net/batman-adv/main.c:223
 batadv_softif_init_late+0xad7/0xd90 net/batman-adv/soft-interface.c:863
 register_netdevice+0x2dc/0x10f0 net/core/dev.c:8660
 rtnl_newlink+0x13b5/0x15c0 net/core/rtnetlink.c:3155
 rtnetlink_rcv_msg+0x453/0xb80 net/core/rtnetlink.c:4782
 netlink_rcv_skb+0x160/0x440 net/netlink/af_netlink.c:2463
 netlink_unicast_kernel net/netlink/af_netlink.c:1325 [inline]
 netlink_unicast+0x4d5/0x690 net/netlink/af_netlink.c:1351
 netlink_sendmsg+0x6c3/0xc50 net/netlink/af_netlink.c:1917
 sock_sendmsg_nosec net/socket.c:651 [inline]
 sock_sendmsg+0xc3/0x120 net/socket.c:661
 ___sys_sendmsg+0x7bb/0x8e0 net/socket.c:2227
 __sys_sendmsg net/socket.c:2265 [inline]
 __do_sys_sendmsg net/socket.c:2274 [inline]
 __se_sys_sendmsg net/socket.c:2272 [inline]
 __x64_sys_sendmsg+0x132/0x220 net/socket.c:2272
 do_syscall_64+0xf9/0x620 arch/x86/entry/common.c:293
 entry_SYSCALL_64_after_hwframe+0x49/0xbe
RIP: 0033:0x7fea8716d139
Code: 28 00 00 00 75 05 48 83 c4 28 c3 e8 d1 18 00 00 90 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 b8 ff ff ff f7 d8 64 89 01 48
RSP: 002b:00007ffd029407a8 EFLAGS: 00000246 ORIG_RAX: 000000000000002e
RAX: ffffffffffffffda RBX: 0000000000000003 RCX: 00007fea8716d139
RDX: 0000000000000000 RSI: 0000000020000080 RDI: 0000000000000003
RBP: 0000000000000000 R08: 00007ffd029407f0 R09: 00007ffd029407f0
R10: 00007ffd02940230 R11: 0000000000000246 R12: 00007ffd029407dc
R13: 00007ffd029407f0 R14: 00007ffd02940830 R15: 00000000000005b8
Kernel Offset: disabled
Rebooting in 86400 seconds..