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CVE-2024-27412

5.5 · MEDIUM

In the Linux kernel, the following vulnerability has been resolved: power: supply: bq27xxx-i2c: Do not free non existing IRQ The bq27xxx i2c-client may not have an IRQ, in which case client->irq…

Published May 17, 2024EPSS 0.25%

Overview

CVE-2024-27412 is a medium-severity vulnerability. It was published on May 17, 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:

power: supply: bq27xxx-i2c: Do not free non existing IRQ

The bq27xxx i2c-client may not have an IRQ, in which case

client->irq will be 0. bq27xxx_battery_i2c_probe() already has

an if (client->irq) check wrapping the request_threaded_irq().

But bq27xxx_battery_i2c_remove() unconditionally calls

free_irq(client->irq) leading to:

[ 190.310742] ------------[ cut here ]------------

[ 190.310843] Trying to free already-free IRQ 0

[ 190.310861] WARNING: CPU: 2 PID: 1304 at kernel/irq/manage.c:1893 free_irq+0x1b8/0x310

Followed by a backtrace when unbinding the driver. Add

an if (client->irq) to bq27xxx_battery_i2c_remove() mirroring

probe() to fix this.

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/083686474e7c97b0f8b66df37fcb64e432e8b771Refgit.kernel.org/stable/c/2df70149e73e79783bcbc7db4fa51ecef0e2022cRefgit.kernel.org/stable/c/7394abc8926adee6a817bab10797e0adc898af77Refgit.kernel.org/stable/c/cefe18e9ec84f8fe3e198ccebb815cc996eb9797Refgit.kernel.org/stable/c/d4d813c0a14d6bf52d810a55db06a2e7e3d98eaaRefgit.kernel.org/stable/c/d7acc4a569f5f4513120c85ea2b9f04909b7490fRefgit.kernel.org/stable/c/e601ae81910ce6a3797876e190a2d8ef6cf828bcRefgit.kernel.org/stable/c/fbca8bae1ba79d443a58781b45e92a73a24ac8f8Refgit.kernel.org/stable/c/083686474e7c97b0f8b66df37fcb64e432e8b771Refgit.kernel.org/stable/c/2df70149e73e79783bcbc7db4fa51ecef0e2022c

How CyberStrike helps

Frequently asked questions

What is CVE-2024-27412?

CVE-2024-27412 is a medium-severity vulnerability. It was published on May 17, 2024 and has a CVSS 3.1 base score of 5.5 (MEDIUM).

How severe is CVE-2024-27412?

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-2024-27412?

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-2024-27412?

CyberStrike is an open-source, AI-augmented pentesting engine. Rather than flag a version number, it tests whether an issue like CVE-2024-27412 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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