IPv6: ADDRCONF(NETDEV_CHANGE): vxcan1: link becomes ready
IPv6: ADDRCONF(NETDEV_CHANGE): vxcan0: link becomes ready
8021q: adding VLAN 0 to HW filter on device batadv0
WARNING: CPU: 0 PID: 8149 at kernel/signal.c:367 task_participate_group_stop+0x204/0x250 kernel/signal.c:367
Kernel panic - not syncing: panic_on_warn set ...

CPU: 0 PID: 8149 Comm: 3 Not tainted 4.19.87-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+0x197/0x210 lib/dump_stack.c:118
 panic+0x26a/0x50e kernel/panic.c:186
 __warn.cold+0x20/0x53 kernel/panic.c:541
 report_bug+0x263/0x2b0 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+0x204/0x360 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:1037
RIP: 0010:task_participate_group_stop+0x204/0x250 kernel/signal.c:367
kobject: 'loop5' (00000000c1538efd): kobject_uevent_env
Code: d0 7c 04 84 d2 75 58 41 89 9d a4 00 00 00 41 bc 01 00 00 00 e9 55 ff ff ff e8 48 1a 29 00 0f 0b e9 8d fe ff ff e8 3c 1a 29 00 <0f> 0b e9 fa fe ff ff 4c 89 e7 e8 5d a7 60 00 e9 c6 fe ff ff e8 73
RSP: 0018:ffff8880a8497b98 EFLAGS: 00010093
RAX: ffff8880a8da2200 RBX: 0000000000000000 RCX: ffffffff8141f8ee
kobject: 'loop5' (00000000c1538efd): fill_kobj_path: path = '/devices/virtual/block/loop5'
RDX: 0000000000000000 RSI: ffffffff8141fa04 RDI: 0000000000000005
RBP: ffff8880a8497bb8 R08: ffff8880a8da2200 R09: ffffed1012515d0a
R10: ffffed1012515d09 R11: ffff8880928ae84b R12: ffff88807fcee760
R13: ffff88807fcee6c0 R14: 0000000000040000 R15: ffff8880a8da2200
 do_signal_stop+0x1e6/0x840 kernel/signal.c:2266
 get_signal+0xf56/0x1fc0 kernel/signal.c:2453
 do_signal+0x95/0x1960 arch/x86/kernel/signal.c:821
 exit_to_usermode_loop+0x244/0x2c0 arch/x86/entry/common.c:163
 prepare_exit_to_usermode arch/x86/entry/common.c:198 [inline]
 syscall_return_slowpath arch/x86/entry/common.c:271 [inline]
 do_syscall_64+0x53d/0x620 arch/x86/entry/common.c:296
 entry_SYSCALL_64_after_hwframe+0x49/0xbe
RIP: 0033:0x324
Code: Bad RIP value.
RSP: 002b:00007ffe73f76220 EFLAGS: 00000200 ORIG_RAX: 000000000000003b
RAX: 0000000000000000 RBX: 0000000000000000 RCX: 0000000000000000
RDX: 0000000000000000 RSI: 0000000000000000 RDI: 0000000000000000
RBP: 0000000000000000 R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000000 R12: 0000000000000000
R13: 0000000000000000 R14: 0000000000000000 R15: 0000000000000000
Kernel Offset: disabled
Rebooting in 86400 seconds..