slab_pre_alloc_hook mm/slab.h:421 [inline]
 slab_alloc mm/slab.c:3376 [inline]
 __do_kmalloc mm/slab.c:3718 [inline]
 __kmalloc+0x2c1/0x400 mm/slab.c:3729
 kmalloc include/linux/slab.h:493 [inline]
 kzalloc include/linux/slab.h:661 [inline]
 __list_lru_init+0x67/0x710 mm/list_lru.c:539
 alloc_super fs/super.c:231 [inline]
 sget_userns+0x504/0xc10 fs/super.c:516
------------[ cut here ]------------
 sget+0xd1/0x110 fs/super.c:572
WARNING: CPU: 0 PID: 25230 at fs/super.c:1163 kill_block_super+0xbe/0xe0 fs/super.c:1163
 gfs2_mount+0x10f/0x510 fs/gfs2/ops_fstype.c:1292
Kernel panic - not syncing: panic_on_warn set ...

 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+0xe65/0x2a10 fs/namespace.c:2902
 SYSC_mount fs/namespace.c:3118 [inline]
 SyS_mount+0xa8/0x120 fs/namespace.c:3095
 do_syscall_64+0x1d5/0x640 arch/x86/entry/common.c:292
 entry_SYSCALL_64_after_hwframe+0x46/0xbb
RIP: 0033:0x7f9a45b8461a
RSP: 002b:00007f9a444f7f88 EFLAGS: 00000206 ORIG_RAX: 00000000000000a5
RAX: ffffffffffffffda RBX: 0000000020002440 RCX: 00007f9a45b8461a
RDX: 0000000020000040 RSI: 0000000020000080 RDI: 00007f9a444f7fe0
RBP: 00007f9a444f8020 R08: 00007f9a444f8020 R09: 0000000020000040
R10: 0000000000000000 R11: 0000000000000206 R12: 0000000020000040
R13: 0000000020000080 R14: 00007f9a444f7fe0 R15: 0000000020002500
CPU: 0 PID: 25230 Comm: syz-executor.2 Not tainted 4.14.276-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:ffff888099f07a50 EFLAGS: 00010246
RAX: 0000000000040000 RBX: 0000000000000000 RCX: ffffc900071d5000
RDX: 0000000000040000 RSI: ffffffff818755ae RDI: ffff8880b1d88b70
RBP: ffff88809ddd82c0 R08: ffffffff8b9cdfb0 R09: 0000000000000001
R10: 0000000000000000 R11: ffff88807dcd2040 R12: ffff8880b1d886c0
R13: ffffffff89304450 R14: ffffffff88f45500 R15: dffffc0000000000
 gfs2_kill_sb+0x144/0x1a0 fs/gfs2/ops_fstype.c:1398
 deactivate_locked_super+0x6c/0xd0 fs/super.c:319
 sget_userns+0x9c4/0xc10 fs/super.c:537
 sget+0xd1/0x110 fs/super.c:572
 gfs2_mount+0x10f/0x510 fs/gfs2/ops_fstype.c:1292
 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+0xe65/0x2a10 fs/namespace.c:2902
 SYSC_mount fs/namespace.c:3118 [inline]
 SyS_mount+0xa8/0x120 fs/namespace.c:3095
 do_syscall_64+0x1d5/0x640 arch/x86/entry/common.c:292
 entry_SYSCALL_64_after_hwframe+0x46/0xbb
RIP: 0033:0x7f626a3e761a
RSP: 002b:00007f6268d5af88 EFLAGS: 00000206 ORIG_RAX: 00000000000000a5
RAX: ffffffffffffffda RBX: 0000000020002440 RCX: 00007f626a3e761a
RDX: 0000000020000040 RSI: 0000000020000080 RDI: 00007f6268d5afe0
RBP: 00007f6268d5b020 R08: 00007f6268d5b020 R09: 0000000020000040
R10: 0000000000000000 R11: 0000000000000206 R12: 0000000020000040
R13: 0000000020000080 R14: 00007f6268d5afe0 R15: 0000000020002500
Kernel Offset: disabled
Rebooting in 86400 seconds..