Bug 2298175 (CVE-2022-48834) - CVE-2022-48834 kernel: usb: usbtmc: Fix bug in pipe direction for control transfers
Summary: CVE-2022-48834 kernel: usb: usbtmc: Fix bug in pipe direction for control tra...
Keywords:
Status: NEW
Alias: CVE-2022-48834
Product: Security Response
Classification: Other
Component: vulnerability
Version: unspecified
Hardware: All
OS: Linux
medium
medium
Target Milestone: ---
Assignee: Product Security DevOps Team
QA Contact:
URL:
Whiteboard:
Depends On:
Blocks:
TreeView+ depends on / blocked
 
Reported: 2024-07-16 13:21 UTC by OSIDB Bzimport
Modified: 2024-08-30 12:36 UTC (History)
4 users (show)

Fixed In Version: kernel 5.4.187, kernel 5.10.108, kernel 5.15.31, kernel 5.16.17, kernel 5.17
Clone Of:
Environment:
Last Closed:
Embargoed:

Attachments (Terms of Use)

Description OSIDB Bzimport 2024-07-16 13:21:00 UTC 
In the Linux kernel, the following vulnerability has been resolved:

usb: usbtmc: Fix bug in pipe direction for control transfers

The syzbot fuzzer reported a minor bug in the usbtmc driver:

usb 5-1: BOGUS control dir, pipe 80001e80 doesn't match bRequestType 0
WARNING: CPU: 0 PID: 3813 at drivers/usb/core/urb.c:412
usb_submit_urb+0x13a5/0x1970 drivers/usb/core/urb.c:410
Modules linked in:
CPU: 0 PID: 3813 Comm: syz-executor122 Not tainted
5.17.0-rc5-syzkaller-00306-g2293be58d6a1 #0
...
Call Trace:
 <TASK>
 usb_start_wait_urb+0x113/0x530 drivers/usb/core/message.c:58
 usb_internal_control_msg drivers/usb/core/message.c:102 [inline]
 usb_control_msg+0x2a5/0x4b0 drivers/usb/core/message.c:153
 usbtmc_ioctl_request drivers/usb/class/usbtmc.c:1947 [inline]

The problem is that usbtmc_ioctl_request() uses usb_rcvctrlpipe() for
all of its transfers, whether they are in or out.  It's easy to fix.
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