CVE-2011-2492: Linux Kernel

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

The bluetooth subsystem in the Linux kernel before 3.0-rc4 does not properly initialize certain data structures, which allows local users to obtain potentially sensitive information from kernel memory via a crafted getsockopt system call, related to (1) the l2cap_sock_getsockopt_old function in net/bluetooth/l2cap_sock.c and (2) the rfcomm_sock_getsockopt_old function in net/bluetooth/rfcomm/sock.c.

Affected products

• Linux Linux Kernel: before 3.0 (fixed in 3.0); version 3.0 only
• Red Hat Enterprise Linux Aus: version 5.6 only
• Red Hat Enterprise Linux Desktop: version 5.0 only
• Red Hat Enterprise Linux Eus: version 5.6 only
• Red Hat Enterprise Linux Server: version 5.0 only
• Red Hat Enterprise Linux Workstation: version 5.0 only

Published 2011-07-28. Last modified 2026-06-16.