================================================================== 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