loop2: detected capacity change from 0 to 264192
MTD: Attempt to mount non-MTD device "/dev/loop2"
debugfs: out of free dentries, can not create directory 'sb-romfs-79'
------------[ cut here ]------------
WARNING: CPU: 0 PID: 27559 at mm/vmscan.c:681 register_shrinker_prepared+0x119/0x150 mm/vmscan.c:681
Modules linked in:
CPU: 0 PID: 27559 Comm: syz-executor.2 Not tainted 5.18.0-next-20220603-syzkaller #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
RIP: 0010:register_shrinker_prepared+0x119/0x150 mm/vmscan.c:681
Code: ff 89 c5 89 c6 e8 87 18 d1 ff 85 ed 75 17 e8 2e 1c d1 ff 5b 48 c7 c7 60 dd e7 8b 5d 41 5c 41 5d e9 6c d2 b3 ff e8 17 1c d1 ff <0f> 0b eb e0 e8 5e f7 1d 00 eb be 4c 89 e7 e8 e4 f7 1d 00 eb 81 e8
RSP: 0018:ffffc90015f87c98 EFLAGS: 00010212
RAX: 0000000000006abb RBX: 0000000000000001 RCX: ffffc90004f61000
RDX: 0000000000040000 RSI: ffffffff81a965c9 RDI: 0000000000000005
RBP: 00000000fffffff4 R08: 0000000000000005 R09: 0000000000000000
R10: 00000000fffffff4 R11: 0000000000000001 R12: ffff88802bc287a0
R13: ffff8880283487a0 R14: ffff888028348000 R15: ffffffff8c27a180
FS:  00007f057a725700(0000) GS:ffff8880b9a00000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00007f057a726000 CR3: 000000007d9b5000 CR4: 00000000003506f0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
Call Trace:
 <TASK>
 sget_fc+0x5e7/0x7c0 fs/super.c:552
 get_tree_bdev+0x1c0/0x7e0 fs/super.c:1262
 romfs_get_tree fs/romfs/super.c:562 [inline]
 romfs_get_tree+0x4f/0x60 fs/romfs/super.c:553
 vfs_get_tree+0x89/0x2f0 fs/super.c:1501
 do_new_mount fs/namespace.c:3040 [inline]
 path_mount+0x1320/0x1fa0 fs/namespace.c:3370
 do_mount fs/namespace.c:3383 [inline]
 __do_sys_mount fs/namespace.c:3591 [inline]
 __se_sys_mount fs/namespace.c:3568 [inline]
 __x64_sys_mount+0x27f/0x300 fs/namespace.c:3568
 do_syscall_x64 arch/x86/entry/common.c:50 [inline]
 do_syscall_64+0x35/0xb0 arch/x86/entry/common.c:80
 entry_SYSCALL_64_after_hwframe+0x46/0xb0
RIP: 0033:0x7f057968a63a
Code: 48 c7 c2 b8 ff ff ff f7 d8 64 89 02 b8 ff ff ff ff eb d2 e8 b8 04 00 00 0f 1f 84 00 00 00 00 00 49 89 ca b8 a5 00 00 00 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 c7 c1 b8 ff ff ff f7 d8 64 89 01 48
RSP: 002b:00007f057a724f88 EFLAGS: 00000206 ORIG_RAX: 00000000000000a5
RAX: ffffffffffffffda RBX: 0000000020000180 RCX: 00007f057968a63a
RDX: 0000000020000000 RSI: 0000000020000100 RDI: 00007f057a724fe0
RBP: 00007f057a725020 R08: 00007f057a725020 R09: 0000000020000000
R10: 0000000000000000 R11: 0000000000000206 R12: 0000000020000000
R13: 0000000020000100 R14: 00007f057a724fe0 R15: 0000000020000900
 </TASK>