CVE-2023-1118 Use after free in Kernel

What is CVE-2023-1118?

CVE-2023-1118 is a high-severity use after free vulnerability in Linux kernel, published on 2 Mar 2023. It can only be exploited from the same machine or local network, with no action from the victim.

Official description

A flaw use after free in the Linux kernel integrated infrared receiver/transceiver driver was found in the way user detaching rc device. A local user could use this flaw to crash the system or potentially escalate their privileges on the system.

Weakness: CWE-416

Which versions are affected by CVE-2023-1118?

It affects 1 product.

Products include Linux kernel.

How do I fix CVE-2023-1118?

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-2023-1118 being exploited?

There is no known exploitation of CVE-2023-1118 in the wild and no public exploit code.

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-25352, DEBIAN-CVE-2023-1118, GHSA-frcw-7v9f-qh6g, SUSE-SU-2023:1972-1, SUSE-SU-2023:1981-1, UBUNTU-CVE-2023-1118.