FAT-fs (loop7): Invalid FSINFO signature: 0x00000000, 0x00000000 (sector = 1)
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WARNING: CPU: 1 PID: 6641 at mm/vmscan.c:681 register_shrinker_prepared+0xe9/0x120
Modules linked in:
CPU: 1 PID: 6641 Comm: syz-executor.4 Not tainted 5.18.0-next-20220603 #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 35 af e4 ff 85 ed 75 15 e8 5c b2 e4 ff 48 c7 c7 60 74 28 85 5b 5d 41 5c e9 dc 04 c8 ff e8 47 b2 e4 ff <0f> 0b eb e2 e8 ae c0 17 00 eb c0 48 89 df e8 34 c1 17 00 eb 89 e8
RSP: 0018:ffff88804598fc88 EFLAGS: 00010216
RAX: 0000000000002134 RBX: ffff888043ae2778 RCX: ffffc900021d8000
RDX: 0000000000040000 RSI: ffffffff815faa29 RDI: 0000000000000005
RBP: 00000000fffffff4 R08: 0000000000000005 R09: 0000000000000000
R10: 00000000fffffff4 R11: 0000000000000001 R12: ffff888041b2c778
R13: ffffffff85363360 R14: ffffffff853633a0 R15: ffff888007cc2b00
FS:  00007f3edd46b700(0000) GS:ffff88806cf00000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00007f3edd46c000 CR3: 0000000039e76000 CR4: 0000000000350ee0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000ffff4ff0 DR7: 0000000000000400
loop6: detected capacity change from 0 to 256
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: 0033:0x7f3edfef704a
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:00007f3edd46afa8 EFLAGS: 00000206 ORIG_RAX: 00000000000000a5
RAX: ffffffffffffffda RBX: 0000000020000200 RCX: 00007f3edfef704a
RDX: 0000000020000000 RSI: 00000000200000c0 RDI: 00007f3edd46b000
RBP: 00007f3edd46b040 R08: 00007f3edd46b040 R09: 0000000020000000
loop1: detected capacity change from 0 to 3320
R10: 0000000000000000 R11: 0000000000000206 R12: 0000000020000000
R13: 00000000200000c0 R14: 00007f3edd46b000 R15: 0000000020000140
 </TASK>
irq event stamp: 1297
hardirqs last  enabled at (1307): [<ffffffff812afc28>] __up_console_sem+0x78/0x80
hardirqs last disabled at (1316): [<ffffffff812afc0d>] __up_console_sem+0x5d/0x80
softirqs last  enabled at (798): [<ffffffff81167e03>] __irq_exit_rcu+0x113/0x170
softirqs last disabled at (767): [<ffffffff81167e03>] __irq_exit_rcu+0x113/0x170
---[ end trace 0000000000000000 ]---
FAT-fs (loop6): Invalid FSINFO signature: 0x00000000, 0x00000000 (sector = 1)
FAT-fs (loop7): Invalid FSINFO signature: 0x00000000, 0x00000000 (sector = 1)
FAT-fs (loop4): bogus number of reserved sectors
FAT-fs (loop4): Can't find a valid FAT filesystem
FAT-fs (loop6): Invalid FSINFO signature: 0x00000000, 0x00000000 (sector = 1)
loop7: detected capacity change from 0 to 256
FAT-fs (loop7): Invalid FSINFO signature: 0x00000000, 0x00000000 (sector = 1)
FAT-fs (loop7): Invalid FSINFO signature: 0x00000000, 0x00000000 (sector = 1)