CVE-2011-4127: Linux Kernel

Medium severity, CVSS 4.6. EPSS: 0.6% chance of exploitation in the next 30 days.

The Linux kernel before 3.2.2 does not properly restrict SG_IO ioctl calls, which allows local users to bypass intended restrictions on disk read and write operations by sending a SCSI command to (1) a partition block device or (2) an LVM volume.

Affected products

• Linux Linux Kernel: up to and including 3.2.1; version 3.0 only; version 3.0.1 only; version 3.0.2 only; version 3.0.3 only; version 3.0.4 only; …
• Suse Linux Enterprise Server: version 10 only

Published 2012-07-03. Last modified 2026-06-16.