syzbot

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BUG: KCSAN: data-race in usbdev_ioctl / usbdev_ioctl

write to 0xffff888102cdd548 of 4 bytes by task 10235 on cpu 1:
 inode_set_atime_to_ts include/linux/fs.h:1569 [inline]
 usbdev_do_ioctl drivers/usb/core/devio.c:2815 [inline]
 usbdev_ioctl+0x6c2/0x3e10 drivers/usb/core/devio.c:2824
 vfs_ioctl fs/ioctl.c:51 [inline]
 __do_sys_ioctl fs/ioctl.c:907 [inline]
 __se_sys_ioctl+0xd3/0x150 fs/ioctl.c:893
 __x64_sys_ioctl+0x43/0x50 fs/ioctl.c:893
 x64_sys_call+0x1688/0x2e00 arch/x86/include/generated/asm/syscalls_64.h:17
 do_syscall_x64 arch/x86/entry/common.c:52 [inline]
 do_syscall_64+0xc9/0x1c0 arch/x86/entry/common.c:83
 entry_SYSCALL_64_after_hwframe+0x77/0x7f

write to 0xffff888102cdd548 of 4 bytes by task 10236 on cpu 0:
 inode_set_atime_to_ts include/linux/fs.h:1569 [inline]
 usbdev_do_ioctl drivers/usb/core/devio.c:2815 [inline]
 usbdev_ioctl+0x6c2/0x3e10 drivers/usb/core/devio.c:2824
 vfs_ioctl fs/ioctl.c:51 [inline]
 __do_sys_ioctl fs/ioctl.c:907 [inline]
 __se_sys_ioctl+0xd3/0x150 fs/ioctl.c:893
 __x64_sys_ioctl+0x43/0x50 fs/ioctl.c:893
 x64_sys_call+0x1688/0x2e00 arch/x86/include/generated/asm/syscalls_64.h:17
 do_syscall_x64 arch/x86/entry/common.c:52 [inline]
 do_syscall_64+0xc9/0x1c0 arch/x86/entry/common.c:83
 entry_SYSCALL_64_after_hwframe+0x77/0x7f

value changed: 0x145d9a41 -> 0x1951266f

Reported by Kernel Concurrency Sanitizer on:
CPU: 0 PID: 10236 Comm: syz.0.1877 Not tainted 6.10.0-syzkaller-10729-g3c3ff7be9729 #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 06/27/2024
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__nla_validate_parse: 2 callbacks suppressed
netlink: 148 bytes leftover after parsing attributes in process `syz.0.1877'.