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CVE-2024-39484

5.5 · MEDIUM

In the Linux kernel, the following vulnerability has been resolved: mmc: davinci: Don't strip remove function when driver is builtin Using __exit for the remove function results in the remove cal…

Published Jul 5, 2024CWE-770EPSS 0.23%

Overview

CVE-2024-39484 is a medium-severity vulnerability. It was published on July 5, 2024 and has a CVSS 3.1 base score of 5.5 (MEDIUM).

This vulnerability has a CVSS 3.1 base score of 5.5, rated MEDIUM. It requires local or adjacent network access to exploit. Some level of privileges is required for exploitation.

Technical description

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

mmc: davinci: Don't strip remove function when driver is builtin

Using __exit for the remove function results in the remove callback being

discarded with CONFIG_MMC_DAVINCI=y. When such a device gets unbound (e.g.

using sysfs or hotplug), the driver is just removed without the cleanup

being performed. This results in resource leaks. Fix it by compiling in the

remove callback unconditionally.

This also fixes a W=1 modpost warning:

WARNING: modpost: drivers/mmc/host/davinci_mmc: section mismatch in

reference: davinci_mmcsd_driver+0x10 (section: .data) ->

davinci_mmcsd_remove (section: .exit.text)

Remediation

Check the references section for vendor advisories, patches, and mitigation guidance. If immediate patching is not possible, review the CVSS vector to understand the attack surface and apply compensating controls such as network segmentation or access restrictions.

References

Refgit.kernel.org/stable/c/1d5ed0efe51d36b9ae9b64f133bf41cdbf56f584Refgit.kernel.org/stable/c/55c421b364482b61c4c45313a535e61ed5ae4ea3Refgit.kernel.org/stable/c/5ee241f72edc6dce5051a5f100eab6cc019d873eRefgit.kernel.org/stable/c/6ff7cfa02baabec907f6f29ea76634e6256d2ec4Refgit.kernel.org/stable/c/7590da4c04dd4aa9c262da0231e978263861c6ebRefgit.kernel.org/stable/c/aea35157bb9b825faa0432bd0f7fbea37ff39aa1Refgit.kernel.org/stable/c/1d5ed0efe51d36b9ae9b64f133bf41cdbf56f584Refgit.kernel.org/stable/c/55c421b364482b61c4c45313a535e61ed5ae4ea3Refgit.kernel.org/stable/c/5ee241f72edc6dce5051a5f100eab6cc019d873eRefgit.kernel.org/stable/c/6ff7cfa02baabec907f6f29ea76634e6256d2ec4

How CyberStrike helps

Frequently asked questions

What is CVE-2024-39484?

CVE-2024-39484 is a medium-severity vulnerability. It was published on July 5, 2024 and has a CVSS 3.1 base score of 5.5 (MEDIUM).

How severe is CVE-2024-39484?

This vulnerability has a CVSS 3.1 base score of 5.5, rated MEDIUM. It requires local or adjacent network access to exploit. Some level of privileges is required for exploitation.

How do I fix or remediate CVE-2024-39484?

Check the references section for vendor advisories, patches, and mitigation guidance. If immediate patching is not possible, review the CVSS vector to understand the attack surface and apply compensating controls such as network segmentation or access restrictions.

How can CyberStrike help with CVE-2024-39484?

CyberStrike is an open-source, AI-augmented pentesting engine. Rather than flag a version number, it tests whether an issue like CVE-2024-39484 is actually reachable in your own applications and APIs, then verifies each finding before reporting it. That tells you if the weakness is a real, exploitable risk in your environment or a false positive you can safely deprioritize.

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