CVE-2010-4074: Debian Linux

Low severity, CVSS 1.9. EPSS: 0.4% chance of exploitation in the next 30 days.

The USB subsystem in the Linux kernel before 2.6.36-rc5 does not properly initialize certain structure members, which allows local users to obtain potentially sensitive information from kernel stack memory via vectors related to TIOCGICOUNT ioctl calls, and the (1) mos7720_ioctl function in drivers/usb/serial/mos7720.c and (2) mos7840_ioctl function in drivers/usb/serial/mos7840.c.

Affected products

• Debian Debian Linux: version 5.0 only
• Linux Linux Kernel: before 2.6.36 (fixed in 2.6.36); version 2.6.36 only

Published 2010-11-29. Last modified 2026-06-16.