Description

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:

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_ioc...

Classification

CVE ID: CVE-2023-52742

Affected Products

Vendor: Linux

Product: Linux

Exploit Prediction Scoring System (EPSS)

EPSS Score: 0.04% (probability of being exploited)

EPSS Percentile: 12.41% (scored less or equal to compared to others)

EPSS Date: 2025-02-04 (when was this score calculated)

References

https://git.kernel.org/stable/c/f0ad46ef772438c0596df370450d8bdc8a12dbfb
https://git.kernel.org/stable/c/6f69307f625904feed189008381fd83bd1a35b63
https://git.kernel.org/stable/c/43379fcacea2dcee35d02efc9c8fe97807a503c9
https://git.kernel.org/stable/c/1be271c52bf3554edcb8d124d1f8c7f777ee5727
https://git.kernel.org/stable/c/25141fb4119112f4ebf8f00cf52014abbc8020b1
https://git.kernel.org/stable/c/0d2cf3fae701646061e295815bb7588d2f3671cc
https://git.kernel.org/stable/c/811d581194f7412eda97acc03d17fc77824b561f

Timeline