RDX: 0000000020000140 RSI: 0000000020000180 RDI: 00007ff48a227c00 RBP: 0000000000000007 R08: 00007ff48a227c40 R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000202 R12: 0000000000000006 R13: 0000000000000000 R14: 00007ff48a227c40 R15: 00007ff48a2286d0 ------------[ cut here ]------------ WARNING: CPU: 0 PID: 8095 at fs/super.c:1163 kill_block_super+0xbe/0xe0 fs/super.c:1163 Kernel panic - not syncing: panic_on_warn set ... CPU: 0 PID: 8095 Comm: syz-executor004 Not tainted 4.14.202-syzkaller #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 Call Trace: __dump_stack lib/dump_stack.c:17 [inline] dump_stack+0x1b2/0x283 lib/dump_stack.c:58 panic+0x1f9/0x42d kernel/panic.c:183 __warn.cold+0x20/0x4b kernel/panic.c:547 report_bug+0x208/0x249 lib/bug.c:186 fixup_bug arch/x86/kernel/traps.c:177 [inline] fixup_bug arch/x86/kernel/traps.c:172 [inline] do_error_trap+0x195/0x2d0 arch/x86/kernel/traps.c:295 invalid_op+0x1b/0x40 arch/x86/entry/entry_64.S:964 RIP: 0010:kill_block_super+0xbe/0xe0 fs/super.c:1163 RSP: 0018:ffff888096497bc8 EFLAGS: 00010297 RAX: ffff8880b060c480 RBX: 0000000000000000 RCX: 1ffff110160c19a6 RDX: 0000000000000000 RSI: 0000000000000002 RDI: ffff8880b1dc1b70 RBP: ffff8880953405c0 R08: ffffffff8b9a1950 R09: 0000000000000001 R10: 0000000000000000 R11: ffff8880b060c480 R12: ffff8880b1dc16c0 R13: ffffffff89243e70 R14: ffffffff88f44cc0 R15: dffffc0000000000 deactivate_locked_super+0x6c/0xd0 fs/super.c:319 sget_userns+0x9c4/0xc10 fs/super.c:537 sget+0xd1/0x110 fs/super.c:572 mount_bdev+0xcd/0x360 fs/super.c:1107 mount_fs+0x92/0x2a0 fs/super.c:1237 vfs_kern_mount.part.0+0x5b/0x470 fs/namespace.c:1046 vfs_kern_mount fs/namespace.c:1036 [inline] do_new_mount fs/namespace.c:2549 [inline] do_mount+0xe53/0x2a00 fs/namespace.c:2879 SYSC_mount fs/namespace.c:3095 [inline] SyS_mount+0xa8/0x120 fs/namespace.c:3072 do_syscall_64+0x1d5/0x640 arch/x86/entry/common.c:292 entry_SYSCALL_64_after_hwframe+0x46/0xbb RIP: 0033:0x44d9aa RSP: 002b:00007ff48a227bf8 EFLAGS: 00000202 ORIG_RAX: 00000000000000a5 RAX: ffffffffffffffda RBX: 00007ff48a227c00 RCX: 000000000044d9aa RDX: 0000000020000140 RSI: 0000000020000180 RDI: 00007ff48a227c00 RBP: 0000000000000007 R08: 00007ff48a227c40 R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000202 R12: 0000000000000006 R13: 0000000000000000 R14: 00007ff48a227c40 R15: 00007ff48a2286d0 Kernel Offset: disabled Rebooting in 86400 seconds..