kernel: cachefiles: fix dentry leak in cachefiles_open_file()

A flaw was found in the Linux kernel's cachefiles component. A local attacker could exploit a dentry directory entry leak caused by a concurrency issue between a lookup cookie and a cull operation. This flaw prevents the proper release of a reference count, which can lead to resource exhaustion a...

Astra Linux – Vulnerability in Linux 6.1

In the Linux kernel, the following vulnerabilities have been resolved: cachefiles: Fixed the dentry leak in cachefilesopenfile. A dentry leak may occur when a lookup cookie and a cull operation are performed concurrently. P1 | P2 -----------------------------------------------------------...

Linux kernel 安全漏洞

Linux kernel is the kernel used by Linux, the open source operating system of the Linux Foundation in the United States. A security vulnerability exists in the Linux kernel that originates from a dentry leak in the cachefiles subsystem in the cachefilesopenfile function, which could lead to...