KCSAN: data-race in usbdev_ioctl / usbdev

Kernel	Title	Rank 🛈	Count	Last	Reported	Patched	Status
upstream	KCSAN: data-race in usbdev_ioctl / usbdev_ioctl (14) usb	6	3	6d09h	31d	0/29	moderation: reported on 2025/12/16 01:20
upstream	KCSAN: data-race in usbdev_ioctl / usbdev_ioctl (8) usb	6	4	637d	643d	0/29	auto-obsoleted due to no activity on 2024/05/23 21:51
upstream	KCSAN: data-race in usbdev_ioctl / usbdev_ioctl (12) usb	6	2	203d	253d	0/29	auto-obsoleted due to no activity on 2025/08/21 21:41
upstream	KCSAN: data-race in usbdev_ioctl / usbdev_ioctl (13) usb	6	1	114d	114d	0/29	auto-obsoleted due to no activity on 2025/11/18 12:23
upstream	KCSAN: data-race in usbdev_ioctl / usbdev_ioctl usb	6	1	1896d	1865d	0/29	auto-closed as invalid on 2020/12/21 11:58
upstream	KCSAN: data-race in usbdev_ioctl / usbdev_ioctl (3) usb	6	2	1385d	1415d	0/29	auto-closed as invalid on 2022/05/06 03:42
upstream	KCSAN: data-race in usbdev_ioctl / usbdev_ioctl (7) usb	6	2	703d	724d	0/29	auto-obsoleted due to no activity on 2024/03/18 17:20
upstream	KCSAN: data-race in usbdev_ioctl / usbdev_ioctl (2) usb	6	1	1515d	1515d	0/29	auto-closed as invalid on 2021/12/27 18:11
upstream	KCSAN: data-race in usbdev_ioctl / usbdev_ioctl (5) usb	6	1	1003d	1003d	0/29	auto-obsoleted due to no activity on 2023/05/23 16:35
upstream	KCSAN: data-race in usbdev_ioctl / usbdev_ioctl (10) usb	6	3	450d	495d	0/29	auto-obsoleted due to no activity on 2024/12/17 19:31
upstream	KCSAN: data-race in usbdev_ioctl / usbdev_ioctl (11) usb	6	2	358d	377d	0/29	auto-obsoleted due to no activity on 2025/03/19 22:59
upstream	KCSAN: data-race in usbdev_ioctl / usbdev_ioctl (9) usb	6	3	543d	589d	0/29	auto-obsoleted due to no activity on 2024/08/25 21:37
upstream	KCSAN: data-race in usbdev_ioctl / usbdev_ioctl (6) usb	6	1	940d	940d	0/29	auto-obsoleted due to no activity on 2023/07/25 21:09

================================================================== BUG: KCSAN: data-race in usbdev_ioctl / usbdev_ioctl write to 0xffff888103793a58 of 8 bytes by task 21827 on cpu 1: usbdev_do_ioctl drivers/usb/core/devio.c:2798 [inline] usbdev_ioctl+0x626/0x4150 drivers/usb/core/devio.c:2807 vfs_ioctl fs/ioctl.c:51 [inline] __do_sys_ioctl fs/ioctl.c:870 [inline] __se_sys_ioctl+0xcb/0x140 fs/ioctl.c:856 __x64_sys_ioctl+0x3f/0x50 fs/ioctl.c:856 do_syscall_x64 arch/x86/entry/common.c:50 [inline] do_syscall_64+0x2b/0x70 arch/x86/entry/common.c:80 entry_SYSCALL_64_after_hwframe+0x63/0xcd write to 0xffff888103793a58 of 8 bytes by task 21809 on cpu 0: usbdev_do_ioctl drivers/usb/core/devio.c:2798 [inline] usbdev_ioctl+0x626/0x4150 drivers/usb/core/devio.c:2807 vfs_ioctl fs/ioctl.c:51 [inline] __do_sys_ioctl fs/ioctl.c:870 [inline] __se_sys_ioctl+0xcb/0x140 fs/ioctl.c:856 __x64_sys_ioctl+0x3f/0x50 fs/ioctl.c:856 do_syscall_x64 arch/x86/entry/common.c:50 [inline] do_syscall_64+0x2b/0x70 arch/x86/entry/common.c:80 entry_SYSCALL_64_after_hwframe+0x63/0xcd value changed: 0x00000000048bcc4c -> 0x00000000052462e9 Reported by Kernel Concurrency Sanitizer on: CPU: 0 PID: 21809 Comm: syz-executor.5 Not tainted 6.0.0-syzkaller-07362-g62e6e5940c0c-dirty #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 09/22/2022 ================================================================== blktrace: Concurrent blktraces are not allowed on loop11