Linux Kernel up to 7.0.8 media null pointer dereference

Summaryinfo

A vulnerability has been found in Linux Kernel up to 7.0.8 and classified as critical. Affected by this issue is some unknown functionality of the component media. The manipulation leads to null pointer dereference. This vulnerability is traded as CVE-2026-46222. There is no exploit available. The affected component should be upgraded.

Detailsinfo

A vulnerability was found in Linux Kernel up to 7.0.8 and classified as critical. This issue affects an unknown part of the component media. The manipulation with an unknown input leads to a null pointer dereference vulnerability. Using CWE to declare the problem leads to 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. Impacted is availability. The summary by CVE is:

In the Linux kernel, the following vulnerability has been resolved: media: rockchip: rkcif: Add missing MUST_CONNECT flag to pads The pads missed checks for connected devices which may a null dereference when the stream is enabled. Unable to handle kernel NULL pointer dereference at virtual address 0000000000000020 pc : rkcif_interface_enable_streams+0x48/0xf0 lr : rkcif_interface_enable_streams+0x44/0xf0 Call trace: rkcif_interface_enable_streams+0x48/0xf0 v4l2_subdev_enable_streams+0x26c/0x3f0 rkcif_stream_start_streaming+0x140/0x278 vb2_start_streaming+0x74/0x188 vb2_core_streamon+0xe0/0x1d8 vb2_ioctl_streamon+0x60/0xa8 v4l_streamon+0x2c/0x40 __video_do_ioctl+0x34c/0x400 video_usercopy+0x2d0/0x800 video_ioctl2+0x20/0x60 v4l2_ioctl+0x48/0x78

It is possible to read the advisory at git.kernel.org. The identification of this vulnerability is CVE-2026-46222 since 05/13/2026. The exploitation is known to be difficult. The technical details are unknown and an exploit is not publicly available.

Upgrading to version 7.0.9 or 7.1-rc1 eliminates this vulnerability. Applying the patch 318142640590342bfec7aa06d0bdcd0ddbf953d0/8e3c751259dc2d1325838eff26f41032523c7b57 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

• 7.0.0
• 7.0.1
• 7.0.2
• 7.0.3
• 7.0.4
• 7.0.5
• 7.0.6
• 7.0.7
• 7.0.8

License

• open-source

Website

• Vendor: https://www.kernel.org/

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