# CVE-2023-52742: linux: In the Linux kernel, the following vulnerability has been resolved:  net: USB: Fix wrong-direction WARNING in plusb.c...

CVE-2023-52742 is fixed in linux on 1 platform, first by DEBIAN-CVE-2023-52742, released May 21, 2024. It is not reported as exploited. Patch Radar priority: Routine.

- Web page: https://patchblox.com/security/cve/CVE-2023-52742
- Priority: Routine
- CVSS: 5.5 (medium)
- EPSS: 0.0025
- CISA KEV: not listed
- Exploited (vendor report): no
- Publicly disclosed: no
- Published: May 21, 2024

## 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:  <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.

## Where it's fixed

| Platform | Product | Fixed in | Fix | Released |
|---|---|---|---|---|
| Linux | linux Debian 12.15 (bookworm) | 6.1.12-1 | [DEBIAN-CVE-2023-52742](https://patchblox.com/security/data/fix/linux/debian-cve-2023-52742.md) | May 21, 2024 |
| Linux | linux Debian 13.5 (trixie) | 6.1.12-1 | [DEBIAN-CVE-2023-52742](https://patchblox.com/security/data/fix/linux/debian-cve-2023-52742.md) | May 21, 2024 |
| Linux | linux Debian 14 | 6.1.12-1 | [DEBIAN-CVE-2023-52742](https://patchblox.com/security/data/fix/linux/debian-cve-2023-52742.md) | May 21, 2024 |

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