Linux Kernel up to 5.15.32/5.16.18/5.17.1 MXC_MAX_SLOTS denial of service

Summaryinfo

A vulnerability has been found in Linux Kernel up to 5.15.32/5.16.18/5.17.1 and classified as critical. This affects the function MXC_MAX_SLOTS. This manipulation causes denial of service. This vulnerability is registered as CVE-2022-49163. No exploit is available. The affected component should be upgraded.

Detailsinfo

A vulnerability was found in Linux Kernel up to 5.15.32/5.16.18/5.17.1. It has been declared as critical. Affected by this vulnerability is the function MXC_MAX_SLOTS. The manipulation with an unknown input leads to a denial of service vulnerability. The CWE definition for the vulnerability is CWE-404. The product does not release or incorrectly releases a resource before it is made available for re-use. As an impact it is known to affect availability. The summary by CVE is:

In the Linux kernel, the following vulnerability has been resolved: media: imx-jpeg: fix a bug of accessing array out of bounds When error occurs in parsing jpeg, the slot isn't acquired yet, it may be the default value MXC_MAX_SLOTS. If the driver access the slot using the incorrect slot number, it will access array out of bounds. The result is the driver will change num_domains, which follows slot_data in struct mxc_jpeg_dev. Then the driver won't detach the pm domain at rmmod, which will lead to kernel panic when trying to insmod again.

It is possible to read the advisory at git.kernel.org. This vulnerability is known as CVE-2022-49163 since 02/26/2025. Technical details of the vulnerability are known, but there is no available exploit.

Upgrading to version 5.15.33, 5.16.19 or 5.17.2 eliminates this vulnerability. Applying the patch 20c8b90430c5d6c4a3936eaa7c35aac670581487/e209e6db2e527db6a93b14c2deedf969caca78fc/97558d170a1236280407e8d29a7d095d2c2ed554 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
• 5.15.25
• 5.15.26
• 5.15.27
• 5.15.28
• 5.15.29
• 5.15.30
• 5.15.31
• 5.15.32
• 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
• 5.16.11
• 5.16.12
• 5.16.13
• 5.16.14
• 5.16.15
• 5.16.16
• 5.16.17
• 5.16.18
• 5.17.0
• 5.17.1

License

• open-source

Website

• Vendor: https://www.kernel.org/

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