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CVE-2022-2585 is a use-after-free vulnerability in Linux kernel POSIX CPU timer handling. When a process executes from a non-leader thread, armed POSIX CPU timers can remain linked on a list after they have been freed, creating a dangling-pointer condition.
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2 valid exploits after Mallory filtered fakes, detection scripts, and README-only repos.
This repository contains three proof-of-concept (PoC) exploits targeting use-after-free (UAF) vulnerabilities in the Linux kernel, specifically CVE-2022-2585 (POSIX CPU timer UAF), CVE-2022-2586 (nf_tables cross-table reference UAF), and CVE-2022-2588 (cls_route UAF). The structure consists of three C source files, each corresponding to one CVE, and a README.md providing context and references. The exploits are local privilege escalation PoCs that interact directly with kernel interfaces (such as netlink sockets and kernel objects) to trigger UAF conditions. No weaponized payloads are included; the code is intended for research and demonstration purposes. The endpoints involved are local files, netlink sockets, and kernel objects/tables. The repository is suitable for researchers or defenders seeking to understand or test these vulnerabilities on affected Linux systems.
This repository contains proof-of-concept (POC) exploit code for three Linux kernel vulnerabilities: CVE-2022-2585, CVE-2022-2586, and CVE-2022-2588. The structure includes three C source files (CVE-2022-2585.c, CVE-2022-2586.c, dirtycred.c) and a README.md file. Each C file targets a specific kernel vulnerability: - CVE-2022-2585.c demonstrates a UAF in POSIX CPU timers by manipulating timer objects and process forking/cloning. - CVE-2022-2586.c exploits a UAF in the netfilter nf_tables subsystem by creating and deleting tables, sets, and objects via netlink sockets, using the libmnl and libnftnl libraries. - dirtycred.c (related to CVE-2022-2588) targets a UAF in the cls_route traffic control filter, using raw netlink messages to manipulate kernel networking structures. All exploits are local privilege escalation POCs and require the attacker to execute code on a vulnerable Linux system. The README provides references to the original advisories and research papers. No weaponized payloads are included; the code is intended for research and demonstration purposes.
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4 sources tracked across advisories, community write-ups, and news. New activity surfaces here as Mallory finds it.
A Linux kernel POSIX CPU timer use-after-free vulnerability that may allow a local user to escalate privileges.
A use-after-free vulnerability in Linux kernel POSIX CPU timers that may permit local privilege escalation.
A Linux kernel POSIX CPU timer use-after-free vulnerability that may allow local privilege escalation.
A high-severity Linux kernel use-after-free in POSIX CPU timer handling. Executing from a non-leader thread can leave armed POSIX CPU timers on a list after they are freed, potentially enabling local privilege escalation.
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