loop4: detected capacity change from 0 to 128
oldfs: cannot read superblock
------------[ cut here ]------------
VFS: brelse: Trying to free free buffer
WARNING: CPU: 0 PID: 12357 at fs/buffer.c:1145 __brelse fs/buffer.c:1145 [inline]
WARNING: CPU: 0 PID: 12357 at fs/buffer.c:1145 brelse+0x78/0xa0 include/linux/buffer_head.h:326
Modules linked in:
CPU: 0 PID: 12357 Comm: syz-executor.4 Not tainted 6.2.0-rc1-syzkaller #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/26/2022
RIP: 0010:__brelse fs/buffer.c:1145 [inline]
RIP: 0010:brelse+0x78/0xa0 include/linux/buffer_head.h:326
Code: df be 04 00 00 00 e8 f7 fe df ff f0 ff 0b eb 1c e8 5d 55 8a ff eb 15 e8 56 55 8a ff 48 c7 c7 40 54 fe 8a 31 c0 e8 08 45 51 ff <0f> 0b 5b 5d c3 89 d9 80 e1 07 80 c1 03 38 c1 7c af 48 89 df e8 ff
RSP: 0018:ffffc9000354f0c8 EFLAGS: 00010046
RAX: 1da4be5396490c00 RBX: ffff8880376cc6b8 RCX: 0000000000040000
RDX: ffffc9000b711000 RSI: 0000000000006588 RDI: 0000000000006589
RBP: 0000000000000000 R08: ffffffff816f2c9d R09: ffffed1017304f5b
R10: ffffed1017304f5b R11: 1ffff11017304f5a R12: ffff8880b983b280
R13: 0000000000000000 R14: ffff8880b98360f8 R15: dffffc0000000000
FS:  00007fcc47858700(0000) GS:ffff8880b9800000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00007fb60b41e000 CR3: 0000000021d31000 CR4: 00000000003506f0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
Call Trace:
 <TASK>
 __invalidate_bh_lrus+0x37/0x3c0 fs/buffer.c:1380
 invalidate_bh_lru+0x66/0xb0 fs/buffer.c:1393
 smp_call_function_many_cond+0xcb2/0x13d0 kernel/smp.c:978
 on_each_cpu_cond_mask+0x3b/0x80 kernel/smp.c:1155
 invalidate_bdev+0x8a/0xb0 block/bdev.c:85
 invalidate_disk+0x41/0x150 block/genhd.c:693
 __loop_clr_fd+0x24d/0x690 drivers/block/loop.c:1164
 loop_clr_fd drivers/block/loop.c:1257 [inline]
 lo_ioctl+0x1463/0x1f60 drivers/block/loop.c:1563
 blkdev_ioctl+0x3c9/0x7c0 block/ioctl.c:616
 vfs_ioctl fs/ioctl.c:51 [inline]
 __do_sys_ioctl fs/ioctl.c:870 [inline]
 __se_sys_ioctl+0xfb/0x170 fs/ioctl.c:856
 do_syscall_x64 arch/x86/entry/common.c:50 [inline]
 do_syscall_64+0x3d/0xb0 arch/x86/entry/common.c:80
 entry_SYSCALL_64_after_hwframe+0x63/0xcd
RIP: 0033:0x7fcc46a8be97
Code: 3c 1c 48 f7 d8 49 39 c4 72 b8 e8 c4 57 02 00 85 c0 78 bd 48 83 c4 08 4c 89 e0 5b 41 5c c3 0f 1f 44 00 00 b8 10 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:00007fcc47857f88 EFLAGS: 00000246 ORIG_RAX: 0000000000000010
RAX: ffffffffffffffda RBX: 0000000000009e43 RCX: 00007fcc46a8be97
RDX: 0000000000000000 RSI: 0000000000004c01 RDI: 0000000000000004
RBP: 00007fcc478586b8 R08: 00007fcc47858020 R09: 0000000002208018
R10: 0000000002208018 R11: 0000000000000246 R12: ffffffffffffffff
R13: 0000000000000016 R14: 00007fcc47857fe0 R15: 0000000020000200
 </TASK>