CVE-2024-1312 Kernel: race condition leads to use after free during vma lock in lock_vma_under_rcu

What is CVE-2024-1312?

CVE-2024-1312 is a medium-severity use after free vulnerability in Fedoraproject Fedora, published on 8 Feb 2024. It can only be exploited from the same machine or local network, with no action from the victim.

Official description

A use-after-free flaw was found in the Linux kernel's Memory Management subsystem when a user wins two races at the same time with a fail in the mas_prev_slot function. This issue could allow a local user to crash the system.

Weakness: CWE-416

Which versions are affected by CVE-2024-1312?

It affects 2 products.

Products include Fedoraproject Fedora, Linux kernel.

How do I fix CVE-2024-1312?

Apply the vendor's patch.

Upgrade to the fixed version. These bugs are found with fuzzing and sanitisers and avoided by memory-safe languages. More about Use after free.

Is CVE-2024-1312 being exploited?

There is no known exploitation of CVE-2024-1312 in the wild and no public exploit code.

Other vulnerabilities in Fedoraproject Fedora

• CVE-2024-4577 PHP-CGI OS Command Injection Exploited Critical 9.8
• CVE-2021-39226 Grafana Authentication Bypass Exploited Critical 9.8
• CVE-2019-5544 VMware ESXi and Horizon DaaS OpenSLP Heap-Based Buffer Overflow Exploited Critical 9.8
• CVE-2024-4947 Google Chromium V8 Type Confusion Exploited Critical 9.6
• CVE-2024-4671 Google Chromium Visuals Use-After-Free Exploited Critical 9.6

All Fedoraproject Fedora vulnerabilities

Sources

• CVE record
• NVD
• OSV
• GitHub advisory
• How this page is made

Also known as AZL-34305, DEBIAN-CVE-2024-1312, GHSA-798f-8qgx-h85f, UBUNTU-CVE-2024-1312.