WARNING: CPU: 1 PID: 7699 at mm/vmscan.c:681 register_shrinker_prepared+0xe9/0x120
Modules linked in:
CPU: 1 PID: 7699 Comm: syz-executor.5 Not tainted 5.19.0-rc1-next-20220607 #1
Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS rel-1.14.0-0-g155821a1990b-prebuilt.qemu.org 04/01/2014
RIP: 0010:register_shrinker_prepared+0xe9/0x120
Code: 00 31 ff 89 c5 89 c6 e8 a5 ba e4 ff 85 ed 75 15 e8 cc bd e4 ff 48 c7 c7 60 74 28 85 5b 5d 41 5c e9 5c 10 c8 ff e8 b7 bd e4 ff <0f> 0b eb e2 e8 6e be 17 00 eb c0 48 89 df e8 f4 be 17 00 eb 89 e8
RSP: 0018:ffff8880449a7c88 EFLAGS: 00010212
RAX: 0000000000001ea2 RBX: ffff88804185a778 RCX: ffffc90011853000
RDX: 0000000000040000 RSI: ffffffff815f8e39 RDI: 0000000000000005
RBP: 00000000fffffff4 R08: 0000000000000005 R09: 0000000000000000
R10: 00000000fffffff4 R11: 0000000000000001 R12: ffff888043ce0778
R13: ffffffff85363360 R14: ffffffff853633a0 R15: ffff888007c54080
FS:  00007fcc9cc23700(0000) GS:ffff88806cf00000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00007fcc9cc24000 CR3: 0000000020002000 CR4: 0000000000350ee0
Call Trace:
 <TASK>
 sget+0x44c/0x550
 mount_bdev+0xf8/0x430
 legacy_get_tree+0x105/0x220
 vfs_get_tree+0x8e/0x2f0
 path_mount+0x131b/0x1f80
 __x64_sys_mount+0x27e/0x300
 do_syscall_64+0x3b/0x90
 entry_SYSCALL_64_after_hwframe+0x46/0xb0
RIP: 0033:0x7fcc9f6af04a
Code: 48 c7 c2 bc 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 bc ff ff ff f7 d8 64 89 01 48
RSP: 002b:00007fcc9cc22fa8 EFLAGS: 00000206 ORIG_RAX: 00000000000000a5
RAX: ffffffffffffffda RBX: 00000000200001c0 RCX: 00007fcc9f6af04a
RDX: 0000000020000080 RSI: 00000000200004c0 RDI: 00007fcc9cc23000
loop4: detected capacity change from 0 to 9
RBP: 00007fcc9cc23040 R08: 00007fcc9cc23040 R09: 0000000020000080
R10: 0000000000000000 R11: 0000000000000206 R12: 0000000020000080
R13: 00000000200004c0 R14: 00007fcc9cc23000 R15: 0000000020000500
 </TASK>
irq event stamp: 1157
hardirqs last  enabled at (1167): [<ffffffff812aebb8>] __up_console_sem+0x78/0x80
hardirqs last disabled at (1178): [<ffffffff812aeb9d>] __up_console_sem+0x5d/0x80
softirqs last  enabled at (670): [<ffffffff81166d33>] __irq_exit_rcu+0x113/0x170
softirqs last disabled at (639): [<ffffffff81166d33>] __irq_exit_rcu+0x113/0x170
---[ end trace 0000000000000000 ]---
loop1: detected capacity change from 0 to 2048
FAT-fs (loop5): bogus number of reserved sectors
FAT-fs (loop5): Can't find a valid FAT filesystem
EXT4-fs error (device loop1): __ext4_fill_super:5227: inode #2: comm syz-executor.1: iget: root inode unallocated
EXT4-fs (loop1): get root inode failed
EXT4-fs (loop1): mount failed
FAT-fs (loop4): bogus number of reserved sectors
FAT-fs (loop4): Can't find a valid FAT filesystem