================================================================== BUG: KCSAN: data-race in bdev_statx / queue_limits_commit_update read to 0xffff8881023a0488 of 4 bytes by task 3295 on cpu 0: queue_io_min include/linux/blkdev.h:1383 [inline] bdev_io_min include/linux/blkdev.h:1388 [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/0x2ff0 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 0xffff8881023a0448 of 192 bytes by task 6773 on cpu 1: queue_limits_commit_update+0x4c/0x110 block/blk-settings.c:509 loop_configure+0x79c/0xa50 drivers/block/loop.c:1052 lo_ioctl+0x1e1/0x1350 drivers/block/loop.c:1523 blkdev_ioctl+0x352/0x440 block/ioctl.c:705 vfs_ioctl fs/ioctl.c:51 [inline] __do_sys_ioctl fs/ioctl.c:598 [inline] __se_sys_ioctl+0xcb/0x140 fs/ioctl.c:584 __x64_sys_ioctl+0x43/0x50 fs/ioctl.c:584 x64_sys_call+0x1816/0x2ff0 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: 1 UID: 0 PID: 6773 Comm: syz.1.833 Not tainted 6.16.0-syzkaller-11241-g186f3edfdd41 #0 PREEMPT(voluntary) Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 07/12/2025 ================================================================== loop1: detected capacity change from 0 to 512 EXT4-fs (loop1): encrypted files will use data=ordered instead of data journaling mode EXT4-fs (loop1): 1 truncate cleaned up 9pnet_fd: Insufficient options for proto=fd