CVE-2013-2851: Linux Kernel

Medium severity, CVSS 6.0. EPSS: 0.3% chance of exploitation in the next 30 days.

Format string vulnerability in the register_disk function in block/genhd.c in the Linux kernel through 3.9.4 allows local users to gain privileges by leveraging root access and writing format string specifiers to /sys/module/md_mod/parameters/new_array in order to create a crafted /dev/md device name.

Affected products

• Linux Linux Kernel: up to and including 3.9.4; version 3.9 only; version 3.9.0 only; version 3.9.1 only; version 3.9.2 only; version 3.9.3 only

Published 2013-06-07. Last modified 2026-06-16.