netlink: 27 bytes leftover after parsing attributes in process `syz-executor0'.
netlink: 27 bytes leftover after parsing attributes in process `syz-executor0'.
IPVS: ftp: loaded support on port[0] = 21
WARNING: CPU: 0 PID: 31544 at fs/namespace.c:1093 cleanup_mnt+0x118/0x160 fs/namespace.c:1093
Kernel panic - not syncing: panic_on_warn set ...
CPU: 0 PID: 31544 Comm: syz-executor4 Not tainted 4.20.0+ #3
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+0x1db/0x2d0 lib/dump_stack.c:113
 panic+0x2cb/0x589 kernel/panic.c:189
 __warn.cold+0x20/0x4b kernel/panic.c:544
 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+0x11b/0x200 arch/x86/kernel/traps.c:271
 do_invalid_op+0x37/0x50 arch/x86/kernel/traps.c:290
 invalid_op+0x14/0x20 arch/x86/entry/entry_64.S:973
RIP: 0010:cleanup_mnt+0x118/0x160 fs/namespace.c:1093
Code: 1c 01 00 00 48 c7 c7 40 7c a5 89 e8 f2 06 15 06 48 8d 7b 38 48 c7 c6 60 e9 d9 81 e8 02 7e 92 ff 5b 41 5c 5d c3 e8 98 a9 a7 ff <0f> 0b e9 0e ff ff ff e8 8c a9 a7 ff 48 89 df e8 d4 fb 06 00 e9 31
RSP: 0018:ffff88806781f5c8 EFLAGS: 00010293
RAX: ffff88805fdf06c0 RBX: ffff888097a58200 RCX: ffffffff81d9fb84
kobject: 'loop5' (00000000e31fcfcd): kobject_uevent_env
RDX: 0000000000000000 RSI: ffffffff81d9fc78 RDI: 0000000000000005
RBP: ffff88806781f5d8 R08: ffff88805fdf06c0 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000000 R12: 00000000000000fc
R13: dffffc0000000000 R14: ffffed100cf03ec9 R15: ffff888097a58038
 __cleanup_mnt+0x16/0x20 fs/namespace.c:1105
 task_work_run+0x1f4/0x2b0 kernel/task_work.c:113
kobject: 'loop5' (00000000e31fcfcd): fill_kobj_path: path = '/devices/virtual/block/loop5'
 exit_task_work include/linux/task_work.h:22 [inline]
 do_exit+0x1a52/0x26f0 kernel/exit.c:867
 do_group_exit+0x177/0x430 kernel/exit.c:970
 get_signal+0x8b4/0x19b0 kernel/signal.c:2517
 do_signal+0x91/0x1e80 arch/x86/kernel/signal.c:816
 exit_to_usermode_loop+0x2f7/0x3b0 arch/x86/entry/common.c:162
 prepare_exit_to_usermode arch/x86/entry/common.c:197 [inline]
 syscall_return_slowpath arch/x86/entry/common.c:268 [inline]
 do_syscall_64+0x696/0x800 arch/x86/entry/common.c:293
 entry_SYSCALL_64_after_hwframe+0x49/0xbe
RIP: 0033:0x457ec9
Code: 6d b7 fb ff c3 66 2e 0f 1f 84 00 00 00 00 00 66 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 0f 83 3b b7 fb ff c3 66 2e 0f 1f 84 00 00 00 00
RSP: 002b:00007fe3ac6e5c78 EFLAGS: 00000246 ORIG_RAX: 0000000000000009
RAX: 0000000020000000 RBX: 0000000000000006 RCX: 0000000000457ec9
RDX: 0000000000000003 RSI: 0000000000b36000 RDI: 0000000020000000
RBP: 000000000073bfa0 R08: ffffffffffffffff R09: 0000000000000000
R10: 0000000000008031 R11: 0000000000000246 R12: 00007fe3ac6e66d4
R13: 00000000004c3b56 R14: 00000000004d6910 R15: 00000000ffffffff
Kernel Offset: disabled
Rebooting in 86400 seconds..