loop0: detected capacity change from 0 to 128
oldfs: cannot read superblock
------------[ cut here ]------------
VFS: brelse: Trying to free free buffer
WARNING: CPU: 1 PID: 5057 at fs/buffer.c:1235 __brelse fs/buffer.c:1235 [inline]
WARNING: CPU: 1 PID: 5057 at fs/buffer.c:1235 brelse include/linux/buffer_head.h:309 [inline]
WARNING: CPU: 1 PID: 5057 at fs/buffer.c:1235 __invalidate_bh_lrus fs/buffer.c:1487 [inline]
WARNING: CPU: 1 PID: 5057 at fs/buffer.c:1235 invalidate_bh_lru+0x102/0x1b0 fs/buffer.c:1500
Modules linked in:
CPU: 1 PID: 5057 Comm: syz-executor261 Not tainted 6.8.0-syzkaller-08951-gfe46a7dd189e #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 03/27/2024
RIP: 0010:__brelse fs/buffer.c:1235 [inline]
RIP: 0010:brelse include/linux/buffer_head.h:309 [inline]
RIP: 0010:__invalidate_bh_lrus fs/buffer.c:1487 [inline]
RIP: 0010:invalidate_bh_lru+0x102/0x1b0 fs/buffer.c:1500
Code: 64 41 dd ff f0 ff 0b eb 25 e8 ba 3d 7d ff 41 80 3c 2e 00 75 2a eb 30 e8 ac 3d 7d ff 90 48 c7 c7 20 d0 b8 8b e8 df 11 40 ff 90 <0f> 0b 90 90 48 bd 00 00 00 00 00 fc ff df 41 80 3c 2e 00 74 08 4c
RSP: 0018:ffffc900041c6ee8 EFLAGS: 00010046
RAX: 33e8e487d5056d00 RBX: ffff88805ed3c5d0 RCX: ffff8880220f8000
RDX: 0000000000000000 RSI: 0000000000000000 RDI: 0000000000000000
RBP: 0000000000000000 R08: ffffffff8157cb22 R09: 1ffff110172a51a2
R10: dffffc0000000000 R11: ffffed10172a51a3 R12: ffff8880b9539030
R13: 0000000000000000 R14: 1ffff110172a7206 R15: ffff8880b9539030
FS:  000055557454d380(0000) GS:ffff8880b9500000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 000055d241297bd0 CR3: 0000000023c04000 CR4: 00000000003506f0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
Call Trace:
 <TASK>
 csd_do_func kernel/smp.c:133 [inline]
 smp_call_function_many_cond+0x15ca/0x2960 kernel/smp.c:846
 on_each_cpu_cond_mask+0x3f/0x80 kernel/smp.c:1023
 invalidate_bdev+0x8e/0xc0 block/bdev.c:94
 invalidate_disk+0x45/0xe0 block/genhd.c:747
 __loop_clr_fd+0x322/0x810 drivers/block/loop.c:1160
 loop_clr_fd drivers/block/loop.c:1253 [inline]
 lo_ioctl+0x174a/0x21a0 drivers/block/loop.c:1555
 blkdev_ioctl+0x5e5/0x740 block/ioctl.c:640
 vfs_ioctl fs/ioctl.c:51 [inline]
 __do_sys_ioctl fs/ioctl.c:904 [inline]
 __se_sys_ioctl+0xfc/0x170 fs/ioctl.c:890
 do_syscall_64+0xfb/0x240
 entry_SYSCALL_64_after_hwframe+0x6d/0x75
RIP: 0033:0x7f259157977b
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:00007ffedfa24710 EFLAGS: 00000246 ORIG_RAX: 0000000000000010
RAX: ffffffffffffffda RBX: 0000000000000003 RCX: 00007f259157977b
RDX: 0000000000000000 RSI: 0000000000004c01 RDI: 0000000000000003
RBP: 0000000000000016 R08: 00007ffedfa247c0 R09: 00ff373737373737
R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000004000
R13: 00007ffedfa247c0 R14: 0000000000000003 R15: 0000000000010000
 </TASK>