CVE-2024-42147: linux kernel Double Free — Fix

Description

In the Linux kernel, the following vulnerability has been resolved: crypto: hisilicon/debugfs - Fix debugfs uninit process issue During the zip probe process, the debugfs failure does not stop the probe. When debugfs initialization fails, jumping to the error branch will also release regs, in addition to its own rollback operation. As a result, it may be released repeatedly during the regs uninit process. Therefore, the null check needs to be added to the regs uninit process.

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CVSS v3.1 Score

7.8

HIGH

CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H

Weakness Type (CWE)

CWE-415 CWE-415

Affected Products

Vendor	Product	Versions
linux	linux_kernel	< 6.1.98
linux	linux_kernel	6.2 — 6.6.39
linux	linux_kernel	6.7 — 6.9.9

References

Advisories & Patches

https://git.kernel.org/stable/c/7fc8d9a525b5c3f8dfa5ed50901e764d8ede7e1e https://git.kernel.org/stable/c/8be0913389718e8d27c4f1d4537b5e1b99ed7739 https://git.kernel.org/stable/c/e0a2d2df9ba7bd6bd7e0a9b6a5e3894f7e8445b3 https://git.kernel.org/stable/c/eda60520cfe3aba9f088c68ebd5bcbca9fc6ac3c https://git.kernel.org/stable/c/7fc8d9a525b5c3f8dfa5ed50901e764d8ede7e1e https://git.kernel.org/stable/c/8be0913389718e8d27c4f1d4537b5e1b99ed7739 https://git.kernel.org/stable/c/e0a2d2df9ba7bd6bd7e0a9b6a5e3894f7e8445b3 https://git.kernel.org/stable/c/eda60520cfe3aba9f088c68ebd5bcbca9fc6ac3c

Other References

https://lists.debian.org/debian-lts-announce/2025/01/msg00001.html

Frequently Asked Questions

What is CVE-2024-42147? +

In the Linux kernel, the following vulnerability has been resolved: crypto: hisilicon/debugfs - Fix debugfs uninit process issue During the zip probe process, the debugfs failure does not stop the probe. When debugfs initialization fails, jumping to the error branch will also release regs, in addition to its own rollback operation. As a result, it may be released repeatedly during the regs uninit process. Therefore, the null check needs to be added to the regs uninit process. It has a CVSS v3.1 base score of 7.8 (HIGH).

How severe is CVE-2024-42147? +

CVE-2024-42147 has a CVSS v3.1 score of 7.8 out of 10, rated HIGH. This is a high-severity vulnerability that should be prioritized for patching.

What products are affected by CVE-2024-42147? +

CVE-2024-42147 affects products from linux, specifically: linux_kernel. Check the affected products table above for specific version ranges.

How do I check if I'm vulnerable to CVE-2024-42147? +

You can use Secably's free Website Scanner to check your website for known vulnerabilities. For infrastructure scanning, use the Port Scanner to identify exposed services that may be affected. Check the vendor advisories linked above for specific patch and version information.

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