CyberRota Analysis
AI-GeneratedThe vulnerability affects the Linux kernel's handling of ALSA (Advanced Linux Sound Architecture) in the go7007 driver, where the release of the v4l2_device reference occurs prematurely, potentially allowing a userspace process to access freed memory. This can lead to undefined behavior or crashes, making it critical for systems relying on the go7007 driver for audio capture to prioritize this fix. Organizations using Linux systems with this driver should assess their exposure and apply the necessary updates to mitigate potential risks.
Original NVD Description
In the Linux kernel, the following vulnerability has been resolved: media: go7007: defer the ALSA v4l2 put until card release go7007_snd_init() already takes a v4l2_device reference for the ALSA side, but go7007_snd_remove() drops it immediately after calling snd_card_free_when_closed(). That is too early when a userspace process still has the capture PCM open. The ALSA card and its PCM callbacks remain alive until the last file is closed, so the release path can still reach struct go7007 through pcm->private_data and call go7007_snd_hw_free() after the V4L2 release path has freed the object. Move the matching v4l2_device_put() to the ALSA card private_free callback so the existing ALSA reference covers the whole deferred card lifetime.