CVE-2024-0582 Kernel: io_uring: page use-after-free vulnerability via buffer ring mmap

What is CVE-2024-0582?

CVE-2024-0582 is a high-severity use after free vulnerability in Linux kernel, published on 16 Jan 2024. It can only be exploited from the same machine or local network, with no action from the victim.

Official description

A memory leak flaw was found in the Linux kernel’s io_uring functionality in how a user registers a buffer ring with IORING_REGISTER_PBUF_RING, mmap() it, and then frees it. This flaw allows a local user to crash or potentially escalate their privileges on the system.

Weakness: CWE-416

Which versions are affected by CVE-2024-0582?

It affects 1 product.

Products include Linux kernel.

How do I fix CVE-2024-0582?

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-2024-0582 being exploited?

There is no known exploitation of CVE-2024-0582 in the wild and no public exploit code.

Public exploit code: 8 proofs of concept on GitHub.

Other vulnerabilities in Linux kernel

• CVE-2026-53266 Linux Kernel Out-of-Bounds Write Exploited High 8.8
• CVE-2013-6282 Linux Kernel Improper Input Validation Exploited High 8.8
• CVE-2022-0185 Linux Kernel Heap-Based Buffer Overflow Exploited High 8.4
• CVE-2013-2094 Linux Kernel Privilege Escalation Exploited High 8.4
• CVE-2026-53362 Linux Kernel Unspecified Exploited High 7.8

All Linux kernel vulnerabilities

Sources

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

Also known as AZL-110415, DEBIAN-CVE-2024-0582, GHSA-vqhw-2g88-5gvm, UBUNTU-CVE-2024-0582.