CVE-2011-2695: Linux Kernel

Medium severity, CVSS 4.9. EPSS: 0.5% chance of exploitation in the next 30 days.

Multiple off-by-one errors in the ext4 subsystem in the Linux kernel before 3.0-rc5 allow local users to cause a denial of service (BUG_ON and system crash) by accessing a sparse file in extent format with a write operation involving a block number corresponding to the largest possible 32-bit unsigned integer.

Affected products

• Linux Linux Kernel: before 3.0 (fixed in 3.0); version 3.0 only

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