Linux Kernel up to 5.15.33/5.16.19/5.17.2 vchiq_get_state null pointer dereference

Summaryinfo

A vulnerability has been found in Linux Kernel up to 5.15.33/5.16.19/5.17.2 and classified as critical. This impacts the function vchiq_get_state. Performing a manipulation results in null pointer dereference. This vulnerability is known as CVE-2022-49106. No exploit is available. The affected component should be upgraded.

Detailsinfo

A vulnerability classified as critical has been found in Linux Kernel up to 5.15.33/5.16.19/5.17.2. This affects the function vchiq_get_state. The manipulation with an unknown input leads to a null pointer dereference vulnerability. CWE is classifying the issue as CWE-476. A NULL pointer dereference occurs when the application dereferences a pointer that it expects to be valid, but is NULL, typically causing a crash or exit. This is going to have an impact on availability. The summary by CVE is:

In the Linux kernel, the following vulnerability has been resolved: staging: vchiq_arm: Avoid NULL ptr deref in vchiq_dump_platform_instances vchiq_get_state() can return a NULL pointer. So handle this cases and avoid a NULL pointer derefence in vchiq_dump_platform_instances.

The advisory is shared at git.kernel.org. This vulnerability is uniquely identified as CVE-2022-49106 since 02/26/2025. Technical details are known, but no exploit is available.

Upgrading to version 5.15.34, 5.16.20 or 5.17.3 eliminates this vulnerability. Applying the patch 176df12b38c70b0a45e6392a0ee5bc83489dfc29/4627250cabaa80278d3ab01ad107893cea83799f/51e5e5c34c22c0bfec0808d8c33e0b2fcf4c7c89/aa899e686d442c63d50f4d369cc02dbbf0941cb0 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
• 5.15.33
• 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
• 5.16.19
• 5.17.0
• 5.17.1
• 5.17.2

License

• open-source

Website

• Vendor: https://www.kernel.org/

CPE 2.3info

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CPE 2.2info

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Entryinfo

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