================================================================== BUG: KCSAN: data-race in bdev_statx / queue_limits_commit_update read to 0xffff8881019edef0 of 4 bytes by task 3303 on cpu 1: queue_io_min include/linux/blkdev.h:1405 [inline] bdev_io_min include/linux/blkdev.h:1410 [inline] bdev_statx+0x295/0x2d0 block/bdev.c:1359 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:555 [inline] __se_sys_newfstat+0x96/0x460 fs/stat.c:550 __x64_sys_newfstat+0x31/0x40 fs/stat.c:550 x64_sys_call+0x2c51/0x3000 arch/x86/include/generated/asm/syscalls_64.h:6 do_syscall_x64 arch/x86/entry/syscall_64.c:63 [inline] do_syscall_64+0xc0/0x2a0 arch/x86/entry/syscall_64.c:94 entry_SYSCALL_64_after_hwframe+0x77/0x7f write to 0xffff8881019edeb0 of 192 bytes by task 7143 on cpu 0: queue_limits_commit_update+0x4b/0x160 block/blk-settings.c:577 loop_configure+0x78c/0x9c0 drivers/block/loop.c:1065 lo_ioctl+0x1e1/0x13a0 drivers/block/loop.c:1555 blkdev_ioctl+0x387/0x460 block/ioctl.c:792 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+0x14b0/0x3000 arch/x86/include/generated/asm/syscalls_64.h:17 do_syscall_x64 arch/x86/entry/syscall_64.c:63 [inline] do_syscall_64+0xc0/0x2a0 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: 7143 Comm: syz.8.1110 Tainted: G W syzkaller #0 PREEMPT(voluntary) Tainted: [W]=WARN Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/25/2025 ================================================================== loop8: detected capacity change from 0 to 128