CVE-2023-6915 Kernel: null pointer dereference vulnerability in ida_free in lib/idr.c

What is CVE-2023-6915?

CVE-2023-6915 is a medium-severity vulnerability in Debian Debian Linux, published on 15 Jan 2024. It can only be exploited from the same machine or local network, with no action from the victim.

Official description

A Null pointer dereference problem was found in ida_free in lib/idr.c in the Linux Kernel. This issue may allow an attacker using this library to cause a denial of service problem due to a missing check at a function return.

Weakness: CWE-476

Which versions are affected by CVE-2023-6915?

It affects 24 products.

Products include Debian Debian Linux, Linux kernel, Redhat Codeready Linux Builder, Redhat Codeready Linux Builder for Arm64, Redhat Codeready Linux Builder for Eus, Redhat Codeready Linux Builder for Ibm Z Systems and 18 more.

How do I fix CVE-2023-6915?

Apply the vendor's patch.

Is CVE-2023-6915 being exploited?

There is no known exploitation of CVE-2023-6915 in the wild and no public exploit code.

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All Debian Debian Linux vulnerabilities

Sources

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

Also known as AZL-33550, AZL-34868, BELL-CVE-2023-6915, DEBIAN-CVE-2023-6915, GHSA-3cfm-49vw-5qrv, OESA-2024-1145 and 2 more.