CVE-2010-2071: Linux Kernel

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

The btrfs_xattr_set_acl function in fs/btrfs/acl.c in btrfs in the Linux kernel 2.6.34 and earlier does not check file ownership before setting an ACL, which allows local users to bypass file permissions by setting arbitrary ACLs, as demonstrated using setfacl.

Affected products

• Linux Linux Kernel: up to and including 2.6.34

Published 2010-06-16. Last modified 2026-06-16.