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