Linux LSM POSIX Lock Use-After-Free

An LSM can prevent the fcntl/close race cleanup path in fcntlsetlk from working, leading to use-after-free read in lockgetstatus when reading /proc/locks...

The vulnerability of the fcntl_setlk() function in the Linux operating system allows a hacker to compromise the confidentiality, integrity, and accessibility of the protected information.

The vulnerability of the fcntlsetlk function in the fs/locks.c module of the Linux operating system is related to the reutilization of previously freed memory. Exploiting this vulnerability could allow an attacker to compromise the confidentiality, integrity, and accessibility of the protected...

Linux kernel 安全漏洞

Linux kernel is the kernel used by the Linux Foundation's open source operating system Linux. A security vulnerability exists in the Linux kernel, which originates in the filelock module, where the fcntlsetlk function, when competing with the close function, removes the created lock using the...

SUSE: Security Advisory (SUSE-SU-2019:14157-1)

The remote host is missing an update for the SPDX-FileCopyrightText: 2021 Greenbone AG Some text descriptions might be excerpted from a referenced sources, and are Copyright C by the respective right holders. SPDX-License-Identifier: GPL-2.0-only ifdescription...