syzbot

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BUG: KCSAN: data-race in bdev_statx / queue_limits_commit_update

read to 0xffff88810106c858 of 4 bytes by task 3628 on cpu 1:
 queue_io_min include/linux/blkdev.h:1387 [inline]
 bdev_io_min include/linux/blkdev.h:1392 [inline]
 bdev_statx+0x295/0x2d0 block/bdev.c:1342
 vfs_getattr_nosec+0x1b6/0x1e0 fs/stat.c:227
 vfs_getattr fs/stat.c:262 [inline]
 vfs_statx_path fs/stat.c:299 [inline]
 vfs_statx+0x113/0x390 fs/stat.c:356
 vfs_fstatat+0x115/0x170 fs/stat.c:375
 __do_sys_newfstatat fs/stat.c:542 [inline]
 __se_sys_newfstatat+0x55/0x260 fs/stat.c:536
 __x64_sys_newfstatat+0x55/0x70 fs/stat.c:536
 x64_sys_call+0x135a/0x3000 arch/x86/include/generated/asm/syscalls_64.h:263
 do_syscall_x64 arch/x86/entry/syscall_64.c:63 [inline]
 do_syscall_64+0xd2/0x200 arch/x86/entry/syscall_64.c:94
 entry_SYSCALL_64_after_hwframe+0x77/0x7f

write to 0xffff88810106c818 of 192 bytes by task 6128 on cpu 0:
 queue_limits_commit_update+0x4b/0x160 block/blk-settings.c:550
 loop_configure+0x78c/0x9c0 drivers/block/loop.c:1066
 lo_ioctl+0x1e1/0x12b0 drivers/block/loop.c:1536
 blkdev_ioctl+0x356/0x440 block/ioctl.c:705
 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+0x1816/0x3000 arch/x86/include/generated/asm/syscalls_64.h:17
 do_syscall_x64 arch/x86/entry/syscall_64.c:63 [inline]
 do_syscall_64+0xd2/0x200 arch/x86/entry/syscall_64.c:94
 entry_SYSCALL_64_after_hwframe+0x77/0x7f

Reported by Kernel Concurrency Sanitizer on:
CPU: 0 UID: 0 PID: 6128 Comm: syz.2.1033 Not tainted syzkaller #0 PREEMPT(voluntary) 
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/02/2025
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loop2: detected capacity change from 0 to 1024
EXT4-fs: inline encryption not supported
EXT4-fs (loop2): mounted filesystem 00000000-0000-0000-0000-000000000000 r/w without journal. Quota mode: writeback.