Linux Kernel up to 5.15.24/5.16.10 qcom cleanup use after free

Summaryinfo

A vulnerability identified as critical has been detected in Linux Kernel up to 5.15.24/5.16.10. Affected is the function cleanup of the component qcom. This manipulation causes use after free. This vulnerability is tracked as CVE-2022-48776. No exploit exists. You should upgrade the affected component.

Detailsinfo

A vulnerability classified as critical was found in Linux Kernel up to 5.15.24/5.16.10. Affected by this vulnerability is the function cleanup of the component qcom. The manipulation with an unknown input leads to a use after free vulnerability. The CWE definition for the vulnerability is CWE-416. Referencing memory after it has been freed can cause a program to crash, use unexpected values, or execute code. The impact remains unknown. The summary by CVE is:

In the Linux kernel, the following vulnerability has been resolved: mtd: parsers: qcom: Fix missing free for pparts in cleanup Mtdpart doesn't free pparts when a cleanup function is declared. Add missing free for pparts in cleanup function for smem to fix the leak.

It is possible to read the advisory at git.kernel.org. This vulnerability is known as CVE-2022-48776 since 06/20/2024. Technical details of the vulnerability are known, but there is no available exploit. The pricing for an exploit might be around USD $0-$5k at the moment (estimation calculated on 09/25/2025).

Upgrading to version 5.15.25 or 5.16.11 eliminates this vulnerability. Applying the patch 3eb5185896a6/1b37889f9a15/3dd8ba961b93 is able to eliminate this problem. The bugfix is ready for download at git.kernel.org. The best possible mitigation is suggested to be upgrading to the latest version.

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Productinfo

Type

• Operating System

Vendor

• Linux

Name

• Kernel

Version

• 5.15.0
• 5.15.1
• 5.15.2
• 5.15.3
• 5.15.4
• 5.15.5
• 5.15.6
• 5.15.7
• 5.15.8
• 5.15.9
• 5.15.10
• 5.15.11
• 5.15.12
• 5.15.13
• 5.15.14
• 5.15.15
• 5.15.16
• 5.15.17
• 5.15.18
• 5.15.19
• 5.15.20
• 5.15.21
• 5.15.22
• 5.15.23
• 5.15.24
• 5.16.0
• 5.16.1
• 5.16.2
• 5.16.3
• 5.16.4
• 5.16.5
• 5.16.6
• 5.16.7
• 5.16.8
• 5.16.9
• 5.16.10

License

• open-source

Website

• Vendor: https://www.kernel.org/

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