loop5: detected capacity change from 0 to 1024
loop5: detected capacity change from 0 to 1024
==================================================================
BUG: KCSAN: data-race in bdev_statx / queue_limits_commit_update

read to 0xffff88810235d280 of 4 bytes by task 10817 on cpu 1:
 queue_io_min include/linux/blkdev.h:1332 [inline]
 bdev_io_min include/linux/blkdev.h:1337 [inline]
 bdev_statx+0x297/0x2d0 block/bdev.c:1423
 vfs_getattr_nosec+0x1b6/0x1e0 fs/stat.c:227
 vfs_getattr fs/stat.c:262 [inline]
 vfs_fstat fs/stat.c:281 [inline]
 __do_sys_newfstat fs/stat.c:551 [inline]
 __se_sys_newfstat+0x96/0x460 fs/stat.c:546
 __x64_sys_newfstat+0x31/0x40 fs/stat.c:546
 x64_sys_call+0x1b5f/0x2550 arch/x86/include/generated/asm/syscalls_64.h:6
 do_syscall_x64 arch/x86/entry/syscall_64.c:61 [inline]
 do_syscall_64+0x112/0x360 arch/x86/entry/syscall_64.c:84
 entry_SYSCALL_64_after_hwframe+0x77/0x7f

write to 0xffff88810235d240 of 192 bytes by task 13201 on cpu 0:
 queue_limits_commit_update+0x4b/0x160 block/blk-settings.c:564
 loop_configure+0x78a/0x9c0 drivers/block/loop.c:1086
 lo_ioctl+0x1e3/0x1430 drivers/block/loop.c:1556
 blkdev_ioctl+0x387/0x460 block/ioctl.c:798
 vfs_ioctl fs/ioctl.c:51 [inline]
 __do_sys_ioctl fs/ioctl.c:597 [inline]
 __se_sys_ioctl+0xce/0x140 fs/ioctl.c:583
 __x64_sys_ioctl+0x43/0x50 fs/ioctl.c:583
 x64_sys_call+0x239d/0x2550 arch/x86/include/generated/asm/syscalls_64.h:17
 do_syscall_x64 arch/x86/entry/syscall_64.c:61 [inline]
 do_syscall_64+0x112/0x360 arch/x86/entry/syscall_64.c:84
 entry_SYSCALL_64_after_hwframe+0x77/0x7f

Reported by Kernel Concurrency Sanitizer on:
CPU: 0 UID: 0 PID: 13201 Comm: syz.5.1365 Not tainted syzkaller #0 PREEMPT(lazy) 
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 07/24/2026
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loop5: detected capacity change from 0 to 1024