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CVE-2022-22942 is a local use-after-free vulnerability in the Linux kernel vmwgfx graphics driver. When copying a fence-reply object to userspace fails, error handling releases the file object but does not properly remove the associated file-descriptor-table entry. The still-valid descriptor can subsequently reference a dangling file pointer, enabling use-after-free exploitation and access to file objects opened by other processes.
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1 valid exploit after Mallory filtered fakes, detection scripts, and README-only repos.
This repository contains a single Metasploit module (Ruby file) that exploits a local privilege escalation vulnerability (CVE-2022-22942) in the Linux kernel's vmwgfx driver (versions 4.14-rc1 to 5.17-rc1). The exploit abuses improper file descriptor handling to overwrite a SUID binary (such as /bin/chfn or /bin/chage) with a payload, resulting in root code execution. The module checks for the presence and writability of relevant device files (/dev/dri/card0 or /dev/dri/renderD128) and SUID binaries, then uploads and executes a payload (default: Meterpreter reverse shell). The exploit is operational and part of the Metasploit framework, allowing for customizable payloads. The only file in the repository is the exploit module itself, written in Ruby.
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24 sources tracked across advisories, community write-ups, and news. New activity surfaces here as Mallory finds it.
A Linux kernel flaw in which a failing usercopy condition enables use-after-free exploitation.
Linux kernel vulnerability in which failing usercopy allows use-after-free exploitation.
A Linux kernel failing-usercopy flaw that enables use-after-free exploitation.
A Linux kernel vulnerability where a failing usercopy condition allows use-after-free exploitation.
Query your assets running an affected version, and investigate the blast radius.
Every observed campaign linking this CVE to a named adversary.
Malware families riding this exploit, with evidence and IOCs.
YARA, Sigma, Snort, and vendor rules, auto-deployed to your SIEM.
Cross-references every affected SKU, including bundled OEM variants.
Community discussion across Reddit, Mastodon, and other social sources.