Linux Kernel up to 5.15.86/6.0.17/6.1.3 ipu3-imgu imgu_subdev_set_selection null pointer dereference

Summaryinfo

A vulnerability was found in Linux Kernel up to 5.15.86/6.0.17/6.1.3. It has been rated as critical. Affected is the function imgu_subdev_set_selection of the component ipu3-imgu. This manipulation causes null pointer dereference. This vulnerability is handled as CVE-2022-50826. There is not any exploit available. Upgrading the affected component is advised.

Detailsinfo

A vulnerability was found in Linux Kernel up to 5.15.86/6.0.17/6.1.3. It has been declared as critical. Affected by this vulnerability is the function imgu_subdev_set_selection of the component ipu3-imgu. The manipulation with an unknown input leads to a null pointer dereference vulnerability. The CWE definition for the vulnerability is 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. As an impact it is known to affect availability. The summary by CVE is:

In the Linux kernel, the following vulnerability has been resolved: ipu3-imgu: Fix NULL pointer dereference in imgu_subdev_set_selection() Calling v4l2_subdev_get_try_crop() and v4l2_subdev_get_try_compose() with a subdev state of NULL leads to a NULL pointer dereference. This can currently happen in imgu_subdev_set_selection() when the state passed in is NULL, as this method first gets pointers to both the "try" and "active" states and only then decides which to use. The same issue has been addressed for imgu_subdev_get_selection() with commit 30d03a0de650 ("ipu3-imgu: Fix NULL pointer dereference in active selection access"). However the issue still persists in imgu_subdev_set_selection(). Therefore, apply a similar fix as done in the aforementioned commit to imgu_subdev_set_selection(). To keep things a bit cleaner, introduce helper functions for "crop" and "compose" access and use them in both imgu_subdev_set_selection() and imgu_subdev_get_selection().

The advisory is shared at git.kernel.org. This vulnerability is known as CVE-2022-50826 since 12/30/2025. Technical details are known, but no exploit is available.

The vulnerability scanner Nessus provides a plugin with the ID 281682 (Linux Distros Unpatched Vulnerability : CVE-2022-50826), which helps to determine the existence of the flaw in a target environment.

Upgrading to version 5.15.87, 6.0.18 or 6.1.4 eliminates this vulnerability. Applying the patch fa6bbb4894b9b947063c6ff90018a954c5f9f4b3/611d617bdb6c5d636a9861ec1c98e813fc8a5556/5038ee677606106c91564f9c4557d808d14bad70/dc608edf7d45ba0c2ad14c06eccd66474fec7847 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.

The vulnerability is also documented in the vulnerability database at Tenable (281682). If you want to get the best quality for vulnerability data then you always have to consider VulDB.

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
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• 5.15.25
• 5.15.26
• 5.15.27
• 5.15.28
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• 5.15.31
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• 5.15.33
• 5.15.34
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• 5.15.56
• 5.15.57
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• 5.15.60
• 5.15.61
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• 5.15.64
• 5.15.65
• 5.15.66
• 5.15.67
• 5.15.68
• 5.15.69
• 5.15.70
• 5.15.71
• 5.15.72
• 5.15.73
• 5.15.74
• 5.15.75
• 5.15.76
• 5.15.77
• 5.15.78
• 5.15.79
• 5.15.80
• 5.15.81
• 5.15.82
• 5.15.83
• 5.15.84
• 5.15.85
• 5.15.86
• 6.0.0
• 6.0.1
• 6.0.2
• 6.0.3
• 6.0.4
• 6.0.5
• 6.0.6
• 6.0.7
• 6.0.8
• 6.0.9
• 6.0.10
• 6.0.11
• 6.0.12
• 6.0.13
• 6.0.14
• 6.0.15
• 6.0.16
• 6.0.17
• 6.1.0
• 6.1.1
• 6.1.2
• 6.1.3

License

• open-source

Website

• Vendor: https://www.kernel.org/

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Entryinfo

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