CVE-2024-26664 hwmon: (coretemp) Fix out-of-bounds memory access

High 7.8 Published Updated

An out-of-bounds memory access in the Linux kernel coretemp driver can cause crashes or potential code execution on systems with over 128 cores.

Exploited in the wild
Not known
Login needed
Any signed-in user
Attackable
Local or same network only
Victim action needed
Not needed
Fix
Available

What is CVE-2024-26664?

CVE-2024-26664 is a high-severity memory corruption vulnerability in Debian Debian Linux, published on 2 Apr 2024. It can only be exploited from the same machine or local network, with no action from the victim.

Official description

In the Linux kernel, the following vulnerability has been resolved:

hwmon: (coretemp) Fix out-of-bounds memory access

Fix a bug that pdata->cpu_map[] is set before out-of-bounds check. The problem might be triggered on systems with more than 128 cores per package.

Weakness: CWE-787

Which versions are affected by CVE-2024-26664?

It affects 2 products.

Linux distribution packages (40)
bpftool-debuginfo Red Hat:enterprise_linux:9::appstreamAll versions0:7.3.0-427.22.1.el9_4
kernel-64k-debug-debuginfo Red Hat:enterprise_linux:9::appstreamAll versions0:5.14.0-427.22.1.el9_4
kernel-64k-debug-devel Red Hat:enterprise_linux:9::appstreamAll versions0:5.14.0-427.22.1.el9_4
kernel-64k-debug-devel-matched Red Hat:enterprise_linux:9::appstreamAll versions0:5.14.0-427.22.1.el9_4
kernel-64k-debuginfo Red Hat:enterprise_linux:9::appstreamAll versions0:5.14.0-427.22.1.el9_4
kernel-64k-devel Red Hat:enterprise_linux:9::appstreamAll versions0:5.14.0-427.22.1.el9_4
kernel-64k-devel-matched Red Hat:enterprise_linux:9::appstreamAll versions0:5.14.0-427.22.1.el9_4
kernel-debug-debuginfo Red Hat:enterprise_linux:9::appstreamAll versions0:5.14.0-427.22.1.el9_4
kernel-debug-devel Red Hat:enterprise_linux:9::appstreamAll versions0:5.14.0-427.22.1.el9_4
kernel-debug-devel-matched Red Hat:enterprise_linux:9::appstreamAll versions0:5.14.0-427.22.1.el9_4
kernel-debuginfo Red Hat:enterprise_linux:9::appstreamAll versions0:5.14.0-427.22.1.el9_4
kernel-debuginfo-common-aarch64 Red Hat:enterprise_linux:9::appstreamAll versions0:5.14.0-427.22.1.el9_4
kernel-debuginfo-common-ppc64le Red Hat:enterprise_linux:9::appstreamAll versions0:5.14.0-427.22.1.el9_4
kernel-debuginfo-common-s390x Red Hat:enterprise_linux:9::appstreamAll versions0:5.14.0-427.22.1.el9_4
kernel-debuginfo-common-x86_64 Red Hat:enterprise_linux:9::appstreamAll versions0:5.14.0-427.22.1.el9_4
kernel-devel Red Hat:enterprise_linux:9::appstreamAll versions0:5.14.0-427.22.1.el9_4
kernel-devel-matched Red Hat:enterprise_linux:9::appstreamAll versions0:5.14.0-427.22.1.el9_4
kernel-doc Red Hat:enterprise_linux:9::appstreamAll versions0:5.14.0-427.22.1.el9_4
kernel-headers Red Hat:enterprise_linux:9::appstreamAll versions0:5.14.0-427.22.1.el9_4
kernel-rt-debug-debuginfo Red Hat:enterprise_linux:9::appstreamAll versions0:5.14.0-427.22.1.el9_4
kernel-rt-debuginfo Red Hat:enterprise_linux:9::appstreamAll versions0:5.14.0-427.22.1.el9_4
kernel-tools-debuginfo Red Hat:enterprise_linux:9::appstreamAll versions0:5.14.0-427.22.1.el9_4
kernel-zfcpdump-debuginfo Red Hat:enterprise_linux:9::appstreamAll versions0:5.14.0-427.22.1.el9_4
kernel-zfcpdump-devel Red Hat:enterprise_linux:9::appstreamAll versions0:5.14.0-427.22.1.el9_4
kernel-zfcpdump-devel-matched Red Hat:enterprise_linux:9::appstreamAll versions0:5.14.0-427.22.1.el9_4
libperf-debuginfo Red Hat:enterprise_linux:9::appstreamAll versions0:5.14.0-427.22.1.el9_4
perf Red Hat:enterprise_linux:9::appstreamAll versions0:5.14.0-427.22.1.el9_4
perf-debuginfo Red Hat:enterprise_linux:9::appstreamAll versions0:5.14.0-427.22.1.el9_4
python3-perf-debuginfo Red Hat:enterprise_linux:9::appstreamAll versions0:5.14.0-427.22.1.el9_4
rtla Red Hat:enterprise_linux:9::appstreamAll versions0:5.14.0-427.22.1.el9_4
rv Red Hat:enterprise_linux:9::appstreamAll versions0:5.14.0-427.22.1.el9_4
bpftool Red Hat:enterprise_linux:9::baseosAll versions0:7.3.0-427.22.1.el9_4
bpftool-debuginfo Red Hat:enterprise_linux:9::baseosAll versions0:7.3.0-427.22.1.el9_4
kernel Red Hat:enterprise_linux:9::baseosAll versions0:5.14.0-427.22.1.el9_4
kernel-64k Red Hat:enterprise_linux:9::baseosAll versions0:5.14.0-427.22.1.el9_4
kernel-64k-core Red Hat:enterprise_linux:9::baseosAll versions0:5.14.0-427.22.1.el9_4
kernel-64k-debug Red Hat:enterprise_linux:9::baseosAll versions0:5.14.0-427.22.1.el9_4
kernel-64k-debug-core Red Hat:enterprise_linux:9::baseosAll versions0:5.14.0-427.22.1.el9_4
kernel-64k-debug-debuginfo Red Hat:enterprise_linux:9::baseosAll versions0:5.14.0-427.22.1.el9_4
kernel-64k-debug-modules Red Hat:enterprise_linux:9::baseosAll versions0:5.14.0-427.22.1.el9_4

Products include Debian Debian Linux, Linux kernel.

How do I fix CVE-2024-26664?

Apply the vendor's patch.

Upgrade to the fixed version. Memory-safe languages, compiler hardening and fuzzing prevent most new cases. More about Memory corruption.

Is CVE-2024-26664 being exploited?

There is no known exploitation of CVE-2024-26664 in the wild and no public exploit code.

All Debian Debian Linux vulnerabilities

Sources

Also known as BELL-CVE-2024-26664, DEBIAN-CVE-2024-26664, GHSA-g65w-rrjg-vx49, RHBA-2024:3983, UBUNTU-CVE-2024-26664.

Is CVE-2024-26664 in your software?

Upload an SBOM and sbomify checks it against every vulnerability here, every day.

Check your SBOMs for free