KCSAN: data-race in usbdev_ioctl / usbdev

Kernel	Title	Rank 🛈	Count	Last	Reported	Patched	Status
upstream	KCSAN: data-race in usbdev_ioctl / usbdev_ioctl (4) usb	6	1	1191d	1191d	0/29	auto-obsoleted due to no activity on 2022/11/12 18:04
upstream	KCSAN: data-race in usbdev_ioctl / usbdev_ioctl (14) usb	6	3	2d14h	27d	0/29	moderation: reported on 2025/12/16 01:20
upstream	KCSAN: data-race in usbdev_ioctl / usbdev_ioctl (8) usb	6	4	633d	639d	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	199d	249d	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	110d	110d	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	1892d	1861d	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	1382d	1411d	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	699d	720d	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	1511d	1511d	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	999d	999d	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	446d	491d	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	354d	373d	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	539d	586d	0/29	auto-obsoleted due to no activity on 2024/08/25 21:37

================================================================== BUG: KCSAN: data-race in usbdev_ioctl / usbdev_ioctl write to 0xffff8881035e4128 of 8 bytes by task 8119 on cpu 1: usbdev_do_ioctl drivers/usb/core/devio.c:2805 [inline] usbdev_ioctl+0x6bf/0x3eb0 drivers/usb/core/devio.c:2814 vfs_ioctl fs/ioctl.c:51 [inline] __do_sys_ioctl fs/ioctl.c:870 [inline] __se_sys_ioctl+0xc9/0x140 fs/ioctl.c:856 __x64_sys_ioctl+0x43/0x50 fs/ioctl.c:856 do_syscall_x64 arch/x86/entry/common.c:50 [inline] do_syscall_64+0x41/0xc0 arch/x86/entry/common.c:80 entry_SYSCALL_64_after_hwframe+0x63/0xcd write to 0xffff8881035e4128 of 8 bytes by task 8124 on cpu 0: usbdev_do_ioctl drivers/usb/core/devio.c:2805 [inline] usbdev_ioctl+0x6bf/0x3eb0 drivers/usb/core/devio.c:2814 vfs_ioctl fs/ioctl.c:51 [inline] __do_sys_ioctl fs/ioctl.c:870 [inline] __se_sys_ioctl+0xc9/0x140 fs/ioctl.c:856 __x64_sys_ioctl+0x43/0x50 fs/ioctl.c:856 do_syscall_x64 arch/x86/entry/common.c:50 [inline] do_syscall_64+0x41/0xc0 arch/x86/entry/common.c:80 entry_SYSCALL_64_after_hwframe+0x63/0xcd value changed: 0x00000000350c58ed -> 0x00000000389fdfee Reported by Kernel Concurrency Sanitizer on: CPU: 0 PID: 8124 Comm: syz-executor.2 Not tainted 6.4.0-rc7-syzkaller-00019-g99ec1ed7c2ed #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 05/27/2023 ==================================================================