================================================================== BUG: KCSAN: data-race in bdev_statx / queue_limits_commit_update read to 0xffff888102250fd0 of 4 bytes by task 14594 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:1358 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+0x2773/0x3020 arch/x86/include/generated/asm/syscalls_64.h:6 do_syscall_x64 arch/x86/entry/syscall_64.c:63 [inline] do_syscall_64+0x12c/0x370 arch/x86/entry/syscall_64.c:94 entry_SYSCALL_64_after_hwframe+0x77/0x7f write to 0xffff888102250f90 of 192 bytes by task 3740 on cpu 0: queue_limits_commit_update+0x4b/0x160 block/blk-settings.c:577 loop_configure+0x78c/0x9c0 drivers/block/loop.c:1064 lo_ioctl+0x1e1/0x13a0 drivers/block/loop.c:1534 blkdev_ioctl+0x387/0x460 block/ioctl.c:804 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+0x1563/0x3020 arch/x86/include/generated/asm/syscalls_64.h:17 do_syscall_x64 arch/x86/entry/syscall_64.c:63 [inline] do_syscall_64+0x12c/0x370 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: 3740 Comm: syz.5.8521 Tainted: G W syzkaller #0 PREEMPT(full) Tainted: [W]=WARN Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 02/12/2026 ================================================================== loop5: detected capacity change from 0 to 512 EXT4-fs (loop5): encrypted files will use data=ordered instead of data journaling mode [EXT4 FS bs=1024, gc=1, bpg=8192, ipg=32, mo=a00ec019, mo2=0002] System zones: 1-12 EXT4-fs (loop5): 1 truncate cleaned up EXT4-fs (loop5): mounted filesystem 00000000-0000-0000-0000-000000000000 r/w without journal. Quota mode: writeback. EXT4-fs warning (device loop5): ext4_group_extend:1885: will only finish group (8193 blocks, 7937 new) EXT4-fs warning (device loop5): ext4_group_extend:1890: can't read last block, resize aborted