should_failslab+0xd6/0x130 mm/failslab.c:32
 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]
 ext4_find_extent+0x879/0xbc0 fs/ext4/extents.c:906
------------[ cut here ]------------
 ext4_ext_map_blocks+0x19a/0x6b10 fs/ext4/extents.c:4324
WARNING: CPU: 0 PID: 24155 at fs/super.c:1163 kill_block_super+0xbe/0xe0 fs/super.c:1163
Kernel panic - not syncing: panic_on_warn set ...

 ext4_map_blocks+0x675/0x1730 fs/ext4/inode.c:656
 ext4_getblk+0x98/0x420 fs/ext4/inode.c:992
 ext4_bread+0x6c/0x1b0 fs/ext4/inode.c:1042
 ext4_append+0x1ed/0x440 fs/ext4/namei.c:81
 ext4_init_new_dir fs/ext4/namei.c:2680 [inline]
 ext4_mkdir+0x4c9/0xbd0 fs/ext4/namei.c:2727
 vfs_mkdir+0x463/0x6e0 fs/namei.c:3851
 SYSC_mkdirat fs/namei.c:3874 [inline]
 SyS_mkdirat+0x1fd/0x270 fs/namei.c:3858
 do_syscall_64+0x1d5/0x640 arch/x86/entry/common.c:292
 entry_SYSCALL_64_after_hwframe+0x5e/0xd3
RIP: 0033:0x7f4ee31ae0c7
RSP: 002b:00007f4ee1720f88 EFLAGS: 00000213 ORIG_RAX: 0000000000000102
RAX: ffffffffffffffda RBX: 00000000000002ac RCX: 00007f4ee31ae0c7
RDX: 00000000000001ff RSI: 00000000200000c0 RDI: 00000000ffffff9c
RBP: 0000000020000700 R08: 0000000000000000 R09: 00000000000002a6
R10: 0000000000000000 R11: 0000000000000213 R12: 0000000020000080
R13: 00000000200000c0 R14: 00007f4ee1720fe0 R15: 0000000020000040
CPU: 0 PID: 24155 Comm: syz-executor.2 Not tainted 4.14.302-syzkaller #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/26/2022
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:967
RIP: 0010:kill_block_super+0xbe/0xe0 fs/super.c:1163
RSP: 0018:ffff888044557bc8 EFLAGS: 00010246
RAX: 0000000000040000 RBX: 0000000000000000 RCX: ffffc90007bc6000
RDX: 0000000000040000 RSI: ffffffff81877b4e RDI: ffff888090348d70
RBP: ffff888092284d40 R08: 0000000000000000 R09: 0000000000000001
R10: 0000000000000000 R11: ffff88808c572100 R12: ffff8880903488c0
R13: ffffffff890bb690 R14: ffffffff88f45bc0 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
hub 9-0:1.0: USB hub found
 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
hub 9-0:1.0: 8 ports detected
 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+0x5e/0xd3
RIP: 0033:0x7f7ebacfc5da
RSP: 002b:00007f7eb926cf88 EFLAGS: 00000202 ORIG_RAX: 00000000000000a5
RAX: ffffffffffffffda RBX: 00000000000002ac RCX: 00007f7ebacfc5da
RDX: 0000000020000080 RSI: 00000000200000c0 RDI: 00007f7eb926cfe0
RBP: 00007f7eb926d020 R08: 00007f7eb926d020 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000202 R12: 0000000020000080
R13: 00000000200000c0 R14: 00007f7eb926cfe0 R15: 0000000020000040
Kernel Offset: disabled
Rebooting in 86400 seconds..