RDX: 0000000020003b80 RSI: 0000000020003bc0 RDI: 00007ffda98e2530 RBP: 00007ffda98e2530 R08: 00007ffda98e2570 R09: 0000000000000000 R10: 0000000000008000 R11: 0000000000000282 R12: 0000000000000005 R13: 0000000000008000 R14: 00007ffda98e2570 R15: 0000000000000032 ------------[ cut here ]------------ WARNING: CPU: 1 PID: 8520 at fs/super.c:1163 kill_block_super+0xbe/0xe0 fs/super.c:1163 Kernel panic - not syncing: panic_on_warn set ... CPU: 1 PID: 8520 Comm: syz-executor918 Not tainted 4.14.281-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+0x1b2/0x281 lib/dump_stack.c:58 panic+0x1f9/0x42d kernel/panic.c:183 __warn.cold+0x20/0x44 kernel/panic.c:547 report_bug+0x208/0x250 lib/bug.c:183 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:ffff888097567bc8 EFLAGS: 00010297 RAX: ffff88809721a4c0 RBX: 0000000000000000 RCX: 1ffff11012e435ae RDX: 0000000000000000 RSI: 0000000000000002 RDI: ffff8880a584fcb0 RBP: ffff8880b56f22c0 R08: ffffffff8b9ce3c0 R09: 0000000000000001 R10: 0000000000000000 R11: ffff88809721a4c0 R12: ffff8880a584f800 R13: ffffffff8926c1d0 R14: ffffffff88f45500 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:2572 [inline] do_mount+0xe65/0x2a30 fs/namespace.c:2905 SYSC_mount fs/namespace.c:3121 [inline] SyS_mount+0xa8/0x120 fs/namespace.c:3098 do_syscall_64+0x1d5/0x640 arch/x86/entry/common.c:292 entry_SYSCALL_64_after_hwframe+0x46/0xbb RIP: 0033:0x7f1555a8c15a RSP: 002b:00007ffda98e2528 EFLAGS: 00000282 ORIG_RAX: 00000000000000a5 RAX: ffffffffffffffda RBX: 0000000000000004 RCX: 00007f1555a8c15a RDX: 0000000020003b80 RSI: 0000000020003bc0 RDI: 00007ffda98e2530 RBP: 00007ffda98e2530 R08: 00007ffda98e2570 R09: 0000000000000000 R10: 0000000000008000 R11: 0000000000000282 R12: 0000000000000005 R13: 0000000000008000 R14: 00007ffda98e2570 R15: 0000000000000032 Kernel Offset: disabled Rebooting in 86400 seconds..