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: 6546 at fs/buffer.c:1235 __brelse fs/buffer.c:1235 [inline]
WARNING: CPU: 1 PID: 6546 at fs/buffer.c:1235 brelse include/linux/buffer_head.h:312 [inline]
WARNING: CPU: 1 PID: 6546 at fs/buffer.c:1235 __invalidate_bh_lrus fs/buffer.c:1487 [inline]
WARNING: CPU: 1 PID: 6546 at fs/buffer.c:1235 invalidate_bh_lru+0x128/0x200 fs/buffer.c:1500
Modules linked in:
CPU: 1 PID: 6546 Comm: syz-executor.0 Not tainted 6.7.0-rc8-syzkaller-00101-g0802e17d9aca #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 11/17/2023
pstate: 604000c5 (nZCv daIF +PAN -UAO -TCO -DIT -SSBS BTYPE=--)
pc : __brelse fs/buffer.c:1235 [inline]
pc : brelse include/linux/buffer_head.h:312 [inline]
pc : __invalidate_bh_lrus fs/buffer.c:1487 [inline]
pc : invalidate_bh_lru+0x128/0x200 fs/buffer.c:1500
lr : __brelse fs/buffer.c:1235 [inline]
lr : brelse include/linux/buffer_head.h:312 [inline]
lr : __invalidate_bh_lrus fs/buffer.c:1487 [inline]
lr : invalidate_bh_lru+0x128/0x200 fs/buffer.c:1500
sp : ffff800096ee6f30
x29: ffff800096ee6f30 x28: ffff800080bb18e4 x27: ffff80008e4f0ff8
x26: 0000000000000001 x25: 00000000ffffffff x24: ffff0001b4161f58
x23: 0000000000000008 x22: dfff800000000000 x21: 0000000000000000
x20: ffff0000deb1dc28 x19: ffff80008aa70360 x18: ffff800096ee6e60
x17: 0000000000000000 x16: ffff80008a830eb8 x15: 0000000000000001
x14: 1fffe0003682a63a x13: 0000000000000000 x12: 0000000000000000
x11: 0000000000000004 x10: 0000000000ff0100 x9 : c922539aa9e36a00
x8 : c922539aa9e36a00 x7 : 0000000000000001 x6 : 0000000000000001
x5 : ffff800096ee6818 x4 : ffff80008e5d20c0 x3 : ffff8000805ab6bc
x2 : 0000000000000001 x1 : 0000000100000002 x0 : 0000000000000000
Call trace:
 __brelse fs/buffer.c:1235 [inline]
 brelse include/linux/buffer_head.h:312 [inline]
 __invalidate_bh_lrus fs/buffer.c:1487 [inline]
 invalidate_bh_lru+0x128/0x200 fs/buffer.c:1500
 csd_do_func kernel/smp.c:133 [inline]
 smp_call_function_many_cond+0x1418/0x2df4 kernel/smp.c:846
 on_each_cpu_cond_mask+0x5c/0xc4 kernel/smp.c:1023
 on_each_cpu_cond include/linux/smp.h:105 [inline]
 invalidate_bh_lrus+0x34/0x40 fs/buffer.c:1519
 invalidate_bdev+0x90/0xc0 block/bdev.c:85
 invalidate_disk+0x48/0xe0 block/genhd.c:744
 __loop_clr_fd+0x1d8/0x584 drivers/block/loop.c:1164
 loop_clr_fd drivers/block/loop.c:1257 [inline]
 lo_ioctl+0x1238/0x1d04 drivers/block/loop.c:1563
 blkdev_ioctl+0x3e4/0xae4 block/ioctl.c:633
 vfs_ioctl fs/ioctl.c:51 [inline]
 __do_sys_ioctl fs/ioctl.c:871 [inline]
 __se_sys_ioctl fs/ioctl.c:857 [inline]
 __arm64_sys_ioctl+0x14c/0x1c8 fs/ioctl.c:857
 __invoke_syscall arch/arm64/kernel/syscall.c:37 [inline]
 invoke_syscall+0x98/0x2b8 arch/arm64/kernel/syscall.c:51
 el0_svc_common+0x130/0x23c arch/arm64/kernel/syscall.c:136
 do_el0_svc+0x48/0x58 arch/arm64/kernel/syscall.c:155
 el0_svc+0x54/0x158 arch/arm64/kernel/entry-common.c:678
 el0t_64_sync_handler+0x84/0xfc arch/arm64/kernel/entry-common.c:696
 el0t_64_sync+0x190/0x194 arch/arm64/kernel/entry.S:595
irq event stamp: 1490
hardirqs last  enabled at (1489): [<ffff80008a91e49c>] __raw_spin_unlock_irq include/linux/spinlock_api_smp.h:159 [inline]
hardirqs last  enabled at (1489): [<ffff80008a91e49c>] _raw_spin_unlock_irq+0x30/0x80 kernel/locking/spinlock.c:202
hardirqs last disabled at (1490): [<ffff8000804742bc>] smp_call_function_many_cond+0x1360/0x2df4 kernel/smp.c:845
softirqs last  enabled at (1454): [<ffff80008003144c>] local_bh_enable+0x10/0x34 include/linux/bottom_half.h:32
softirqs last disabled at (1452): [<ffff800080031418>] local_bh_disable+0x10/0x34 include/linux/bottom_half.h:19
---[ end trace 0000000000000000 ]---