CVE-2023-52742

In the Linux kernel, the following vulnerability has been resolved: net:
USB: Fix wrong-direction WARNING in plusb.c The syzbot fuzzer detected a
bug in the plusb network driver: A zero-length control-OUT transfer was
treated as a read instead of a write. In modern kernels this error provokes
a WARNING: usb 1-1: BOGUS control dir, pipe 80000280 doesn’t match
bRequestType c0 WARNING: CPU: 0 PID: 4645 at drivers/usb/core/urb.c:411
usb_submit_urb+0x14a7/0x1880 drivers/usb/core/urb.c:411 Modules linked in:
CPU: 1 PID: 4645 Comm: dhcpcd Not tainted
6.2.0-rc6-syzkaller-00050-g9f266ccaa2f5 #0 Hardware name: Google Google
Compute Engine/Google Compute Engine, BIOS Google 01/12/2023 RIP:
0010:usb_submit_urb+0x14a7/0x1880 drivers/usb/core/urb.c:411 … Call
Trace: <TASK> usb_start_wait_urb+0x101/0x4b0 drivers/usb/core/message.c:58
usb_internal_control_msg drivers/usb/core/message.c:102 [inline]
usb_control_msg+0x320/0x4a0 drivers/usb/core/message.c:153
__usbnet_read_cmd+0xb9/0x390 drivers/net/usb/usbnet.c:2010
usbnet_read_cmd+0x96/0xf0 drivers/net/usb/usbnet.c:2068 pl_vendor_req
drivers/net/usb/plusb.c:60 [inline] pl_set_QuickLink_features
drivers/net/usb/plusb.c:75 [inline] pl_reset+0x2f/0xf0
drivers/net/usb/plusb.c:85 usbnet_open+0xcc/0x5d0
drivers/net/usb/usbnet.c:889 __dev_open+0x297/0x4d0 net/core/dev.c:1417
__dev_change_flags+0x587/0x750 net/core/dev.c:8530
dev_change_flags+0x97/0x170 net/core/dev.c:8602 devinet_ioctl+0x15a2/0x1d70
net/ipv4/devinet.c:1147 inet_ioctl+0x33f/0x380 net/ipv4/af_inet.c:979
sock_do_ioctl+0xcc/0x230 net/socket.c:1169 sock_ioctl+0x1f8/0x680
net/socket.c:1286 vfs_ioctl fs/ioctl.c:51 [inline] __do_sys_ioctl
fs/ioctl.c:870 [inline] __se_sys_ioctl fs/ioctl.c:856 [inline]
__x64_sys_ioctl+0x197/0x210 fs/ioctl.c:856 do_syscall_x64
arch/x86/entry/common.c:50 [inline] do_syscall_64+0x39/0xb0
arch/x86/entry/common.c:80 entry_SYSCALL_64_after_hwframe+0x63/0xcd The fix
is to call usbnet_write_cmd() instead of usbnet_read_cmd() and remove the
USB_DIR_IN flag.