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CVE-2009-4141

HIGH CVSS: 7.2 Published: 2010-01-19 Modified: 2026-06-16

Description

Use-after-free vulnerability in the fasync_helper function in fs/fcntl.c in the Linux kernel before 2.6.33-rc4-git1 allows local users to gain privileges via vectors that include enabling O_ASYNC (aka FASYNC or FIOASYNC) on a locked file, and then closing this file.

Affected Platforms

Linux Linux Kernel

Weakness Type

CWE-399

References