CVE-2009-1961: Canonical Ubuntu Linux

Medium severity, CVSS 4.7. EPSS: 0.6% chance of exploitation in the next 30 days.

The inode double locking code in fs/ocfs2/file.c in the Linux kernel 2.6.30 before 2.6.30-rc3, 2.6.27 before 2.6.27.24, 2.6.29 before 2.6.29.4, and possibly other versions down to 2.6.19 allows local users to cause a denial of service (prevention of file creation and removal) via a series of splice system calls that trigger a deadlock between the generic_file_splice_write, splice_from_pipe, and ocfs2_file_splice_write functions.

Affected products

• Canonical Ubuntu Linux: version 6.06 only; version 8.04 only; version 8.10 only; version 9.04 only
• Debian Debian Linux: version 4.0 only
• Linux Linux Kernel: up to and including 2.6.19; from 2.6.27, before 2.6.27.24 (fixed in 2.6.27.24); from 2.6.29, before 2.6.29.4 (fixed in 2.6.29.4); version 2.6.30 only
• Opensuse Opensuse: version 10.3 only; version 11.1 only
• Suse Linux Enterprise: version 11.0 only
• Suse Linux Enterprise Desktop: version 11 only
• Suse Linux Enterprise Server: version 11 only

Published 2009-06-08. Last modified 2026-06-16.