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================================================================== BUG: KCSAN: data-race in bdev_statx / queue_limits_commit_update read to 0xffff888102308c28 of 4 bytes by task 3497 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_fstat fs/stat.c:281 [inline] __do_sys_newfstat fs/stat.c:555 [inline] __se_sys_newfstat+0x96/0x2e0 fs/stat.c:550 __x64_sys_newfstat+0x31/0x40 fs/stat.c:550 x64_sys_call+0x2768/0x3000 arch/x86/include/generated/asm/syscalls_64.h:6 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 0xffff888102308be8 of 192 bytes by task 9349 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: 9349 Comm: syz.3.1656 Not tainted syzkaller #0 PREEMPT(voluntary) Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/02/2025 ================================================================== loop3: detected capacity change from 0 to 512 EXT4-fs (loop3): encrypted files will use data=ordered instead of data journaling mode EXT4-fs (loop3): 1 truncate cleaned up EXT4-fs (loop3): mounted filesystem 00000000-0000-0000-0000-000000000000 r/w without journal. Quota mode: writeback.
| Time | Kernel | Commit | Syzkaller | Config | Log | Report | Syz repro | C repro | VM info | Assets (help?) | Manager | Title | 
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 2025/10/29 06:31 | upstream | 8eefed8f65cc | fd2207e7 | .config | console log | report | info | [disk image] [vmlinux] [kernel image] | ci2-upstream-kcsan-gce | KCSAN: data-race in bdev_statx / queue_limits_commit_update | ||
| 2025/10/07 07:59 | upstream | c746c3b51698 | 8ef35d49 | .config | console log | report | info | [disk image] [vmlinux] [kernel image] | ci2-upstream-kcsan-gce | KCSAN: data-race in bdev_statx / queue_limits_commit_update | ||
| 2025/10/01 00:41 | upstream | 30d4efb2f5a5 | 65a0eece | .config | console log | report | info | [disk image] [vmlinux] [kernel image] | ci2-upstream-kcsan-gce | KCSAN: data-race in bdev_statx / queue_limits_commit_update | ||
| 2025/09/21 05:10 | upstream | 3b08f56fbbb9 | 67c37560 | .config | console log | report | info | [disk image] [vmlinux] [kernel image] | ci2-upstream-kcsan-gce | KCSAN: data-race in bdev_statx / queue_limits_commit_update | ||
| 2025/09/20 13:07 | upstream | cd89d487374c | 67c37560 | .config | console log | report | info | [disk image] [vmlinux] [kernel image] | ci2-upstream-kcsan-gce | KCSAN: data-race in bdev_statx / queue_limits_commit_update | ||
| 2025/09/10 20:21 | upstream | 7aac71907bde | fdeaa69b | .config | console log | report | info | [disk image] [vmlinux] [kernel image] | ci2-upstream-kcsan-gce | KCSAN: data-race in bdev_statx / queue_limits_commit_update | ||
| 2025/08/03 05:33 | upstream | 186f3edfdd41 | 7368264b | .config | console log | report | info | [disk image] [vmlinux] [kernel image] | ci2-upstream-kcsan-gce | KCSAN: data-race in bdev_statx / queue_limits_commit_update | ||
| 2025/07/27 10:48 | upstream | ec2df4364666 | fb8f743d | .config | console log | report | info | [disk image] [vmlinux] [kernel image] | ci2-upstream-kcsan-gce | KCSAN: data-race in bdev_statx / queue_limits_commit_update | ||
| 2025/07/23 01:50 | upstream | 89be9a83ccf1 | 8e9d1dc1 | .config | console log | report | info | [disk image] [vmlinux] [kernel image] | ci2-upstream-kcsan-gce | KCSAN: data-race in bdev_statx / queue_limits_commit_update | ||
| 2025/07/05 22:43 | upstream | 05df91921da6 | 4f67c4ae | .config | console log | report | info | [disk image] [vmlinux] [kernel image] | ci2-upstream-kcsan-gce | KCSAN: data-race in bdev_statx / queue_limits_commit_update |