CVE-2010-4258: Fedoraproject Fedora

Medium severity, CVSS 6.2. EPSS: 2.7% chance of exploitation in the next 30 days.

The do_exit function in kernel/exit.c in the Linux kernel before 2.6.36.2 does not properly handle a KERNEL_DS get_fs value, which allows local users to bypass intended access_ok restrictions, overwrite arbitrary kernel memory locations, and gain privileges by leveraging a (1) BUG, (2) NULL pointer dereference, or (3) page fault, as demonstrated by vectors involving the clear_child_tid feature and the splice system call.

Affected products

• Fedoraproject Fedora: version 13 only
• Linux Linux Kernel: before 2.6.36.2 (fixed in 2.6.36.2)
• Opensuse Opensuse: version 11.2 only; version 11.3 only
• Suse Linux Enterprise Desktop: version 10 only; version 11 only
• Suse Linux Enterprise Real Time Extension: version 11 only
• Suse Linux Enterprise Server: version 9 only; version 10 only; version 11 only
• Suse Linux Enterprise Software Development Kit: version 10 only

Published 2010-12-30. Last modified 2026-06-16.