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	1171d	1171d	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	1	7d13h	7d13h	0/29	moderation: reported on 2025/12/16 01:20
upstream	KCSAN: data-race in usbdev_ioctl / usbdev_ioctl (8) usb	6	4	613d	620d	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	179d	229d	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	91d	91d	0/29	auto-obsoleted due to no activity on 2025/11/18 12:23
upstream	KCSAN: data-race in usbdev_ioctl / usbdev_ioctl (3) usb	6	2	1362d	1391d	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	679d	700d	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	1491d	1491d	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	979d	979d	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	426d	472d	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	334d	353d	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	519d	566d	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	916d	916d	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 0xffff8881039466f0 of 8 bytes by task 30126 on cpu 0: usbdev_do_ioctl drivers/usb/core/devio.c:2699 [inline] usbdev_ioctl+0x62e/0x3970 drivers/usb/core/devio.c:2708 vfs_ioctl fs/ioctl.c:48 [inline] __do_sys_ioctl fs/ioctl.c:753 [inline] __se_sys_ioctl+0xcb/0x140 fs/ioctl.c:739 __x64_sys_ioctl+0x3f/0x50 fs/ioctl.c:739 do_syscall_64+0x39/0x80 arch/x86/entry/common.c:46 entry_SYSCALL_64_after_hwframe+0x44/0xa9 write to 0xffff8881039466f0 of 8 bytes by task 30121 on cpu 1: usbdev_do_ioctl drivers/usb/core/devio.c:2699 [inline] usbdev_ioctl+0x62e/0x3970 drivers/usb/core/devio.c:2708 vfs_ioctl fs/ioctl.c:48 [inline] __do_sys_ioctl fs/ioctl.c:753 [inline] __se_sys_ioctl+0xcb/0x140 fs/ioctl.c:739 __x64_sys_ioctl+0x3f/0x50 fs/ioctl.c:739 do_syscall_64+0x39/0x80 arch/x86/entry/common.c:46 entry_SYSCALL_64_after_hwframe+0x44/0xa9 Reported by Kernel Concurrency Sanitizer on: CPU: 1 PID: 30121 Comm: syz-executor.0 Not tainted 5.10.0-rc2-syzkaller #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 ================================================================== Kernel panic - not syncing: panic_on_warn set ... CPU: 1 PID: 30121 Comm: syz-executor.0 Not tainted 5.10.0-rc2-syzkaller #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 Call Trace: __dump_stack lib/dump_stack.c:77 [inline] dump_stack+0x116/0x15d lib/dump_stack.c:118 panic+0x1e7/0x5fa kernel/panic.c:231 kcsan_report+0x67b/0x680 kernel/kcsan/report.c:634 kcsan_setup_watchpoint+0x46a/0x4d0 kernel/kcsan/core.c:568 usbdev_do_ioctl drivers/usb/core/devio.c:2699 [inline] usbdev_ioctl+0x62e/0x3970 drivers/usb/core/devio.c:2708 vfs_ioctl fs/ioctl.c:48 [inline] __do_sys_ioctl fs/ioctl.c:753 [inline] __se_sys_ioctl+0xcb/0x140 fs/ioctl.c:739 __x64_sys_ioctl+0x3f/0x50 fs/ioctl.c:739 do_syscall_64+0x39/0x80 arch/x86/entry/common.c:46 entry_SYSCALL_64_after_hwframe+0x44/0xa9 RIP: 0033:0x45deb9 Code: 0d b4 fb ff c3 66 2e 0f 1f 84 00 00 00 00 00 66 90 48 89 f8 48 89 f7 48 89 d6 48 89 ca 4d 89 c2 4d 89 c8 4c 8b 4c 24 08 0f 05 <48> 3d 01 f0 ff ff 0f 83 db b3 fb ff c3 66 2e 0f 1f 84 00 00 00 00 RSP: 002b:00007fb0baa85c78 EFLAGS: 00000246 ORIG_RAX: 0000000000000010 RAX: ffffffffffffffda RBX: 000000000001b040 RCX: 000000000045deb9 RDX: 0000000020000000 RSI: 00000000c0185500 RDI: 0000000000000003 RBP: 000000000118bf60 R08: 0000000000000000 R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000246 R12: 000000000118bf2c R13: 00007ffe15e2b3ef R14: 00007fb0baa869c0 R15: 000000000118bf2c Kernel Offset: disabled Rebooting in 86400 seconds..