What’s Vulnerable › Vulnerabilities

CVE-2026-93101: media: v4l2-async: Unregister sub-device if asc_list is empty

• Severity: unknown
• Exploited in the wild: not listed in CISA KEV
• EPSS: 0.2% probability of exploitation in the next 30 days
• Public exploit or detection template: none known
• Published: 2026-09-17 · updated 2026-10-19

Description

In the Linux kernel, the following vulnerability has been resolved: media: v4l2-async: Unregister sub-device if asc_list is empty When my em28xx USB device that uses the i2c tvp5150 driver is disconnected, it crashes. The cause is that the tvp5150 i2c module uses v4l2_async, but the em28xx driver does not since it predates v4l2_async. In that corner case sd->asc_list is empty, so v4l2_async_unregister_subdev() never calls v4l2_device_unregister_subdev(). Modify the code so that, if sd->asc_list is empty, v4l2_device_unregister_subdev() is still called.

Affected products

• Linux kernel: 6.6 — fixed in 7.3

How to fix

Upgrade to a fixed version: Linux kernel 7.3. Check the vendor advisory for mitigations.

References

• https://git.kernel.org/stable/c/4e72f13d58c4245c177a9d5f54579345554f354d
• https://git.kernel.org/stable/c/65e55f34fb2d61cb4f8a5dfcb93848af2aea0f32
• https://git.kernel.org/stable/c/9fb74dce5c650cb23b60f6ba0ffcd5024e948a75
• https://git.kernel.org/stable/c/c7201bd08cad791858337e33ffcd90d8ae4147c2
• https://git.kernel.org/stable/c/e190320cebe921f99973c984ac53f317061a011f

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