loop0: detected capacity change from 0 to 128
oldfs: cannot read superblock
------------[ cut here ]------------
VFS: brelse: Trying to free free buffer
WARNING: CPU: 0 PID: 5430 at fs/buffer.c:1257 __brelse fs/buffer.c:1257 [inline]
WARNING: CPU: 0 PID: 5430 at fs/buffer.c:1257 __brelse+0x6b/0xa0 fs/buffer.c:1251
Modules linked in:
CPU: 0 PID: 5430 Comm: syz-executor.0 Not tainted 6.5.0-rc5-syzkaller-00053-g13b937206866 #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 07/26/2023
RIP: 0010:__brelse fs/buffer.c:1257 [inline]
RIP: 0010:__brelse+0x6b/0xa0 fs/buffer.c:1251
Code: 7c 04 84 d2 75 4e 44 8b 63 60 31 ff 44 89 e6 e8 0b 0d 8d ff 45 85 e4 75 1c e8 91 11 8d ff 48 c7 c7 a0 b0 7c 8a e8 e5 d2 53 ff <0f> 0b 5b 5d 41 5c e9 7a 11 8d ff e8 75 11 8d ff be 04 00 00 00 48
RSP: 0018:ffffc900036ef8c8 EFLAGS: 00010086
RAX: 0000000000000000 RBX: ffff888065881cb0 RCX: 0000000000000000
RDX: ffff888024c84140 RSI: ffffffff814be3c6 RDI: 0000000000000001
RBP: ffff888065881d10 R08: 0000000000000001 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000001 R12: 0000000000000000
R13: ffff888065881cb0 R14: dffffc0000000000 R15: ffffffff81f80f70
FS:  00007f6e9c60f6c0(0000) GS:ffff8880b9800000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00007f566f41f108 CR3: 0000000027c8b000 CR4: 00000000003506f0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
Call Trace:
 <TASK>
 brelse include/linux/buffer_head.h:339 [inline]
 __invalidate_bh_lrus fs/buffer.c:1492 [inline]
 invalidate_bh_lru+0xa2/0x190 fs/buffer.c:1505
 csd_do_func kernel/smp.c:131 [inline]
 smp_call_function_many_cond+0x122a/0x1570 kernel/smp.c:826
 on_each_cpu_cond_mask+0x40/0x90 kernel/smp.c:1003
 invalidate_bdev+0x9b/0xd0 block/bdev.c:85
 invalidate_disk+0x41/0x110 block/genhd.c:734
 __loop_clr_fd+0x259/0x900 drivers/block/loop.c:1164
 loop_clr_fd drivers/block/loop.c:1257 [inline]
 lo_ioctl+0x5d8/0x1a50 drivers/block/loop.c:1563
 blkdev_ioctl+0x2f9/0x770 block/ioctl.c:621
 vfs_ioctl fs/ioctl.c:51 [inline]
 __do_sys_ioctl fs/ioctl.c:870 [inline]
 __se_sys_ioctl fs/ioctl.c:856 [inline]
 __x64_sys_ioctl+0x18f/0x210 fs/ioctl.c:856
 do_syscall_x64 arch/x86/entry/common.c:50 [inline]
 do_syscall_64+0x38/0xb0 arch/x86/entry/common.c:80
 entry_SYSCALL_64_after_hwframe+0x63/0xcd
RIP: 0033:0x7f6e9b87c88b
Code: 00 48 89 44 24 18 31 c0 48 8d 44 24 60 c7 04 24 10 00 00 00 48 89 44 24 08 48 8d 44 24 20 48 89 44 24 10 b8 10 00 00 00 0f 05 <89> c2 3d 00 f0 ff ff 77 1c 48 8b 44 24 18 64 48 2b 04 25 28 00 00
RSP: 002b:00007f6e9c60ee90 EFLAGS: 00000246 ORIG_RAX: 0000000000000010
RAX: ffffffffffffffda RBX: ffffffffffffffff RCX: 00007f6e9b87c88b
RDX: 0000000000000000 RSI: 0000000000004c01 RDI: 0000000000000004
RBP: 0000000000000016 R08: 00007f6e9c60ef80 R09: 0000000000008003
R10: 0000000000008003 R11: 0000000000000246 R12: 0000000000000004
R13: 00007f6e9c60ef40 R14: 0000000000009dfc R15: 0000000020000000
 </TASK>