CVE-2009-3286: Linux Kernel

Medium severity, CVSS 4.6. EPSS: 0.5% chance of exploitation in the next 30 days.

NFSv4 in the Linux kernel 2.6.18, and possibly other versions, does not properly clean up an inode when an O_EXCL create fails, which causes files to be created with insecure settings such as setuid bits, and possibly allows local users to gain privileges, related to the execution of the do_open_permission function even when a create fails.

Affected products

• Linux Linux Kernel: version 2.6.18 only

Published 2009-09-22. Last modified 2026-06-16.