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CVE-2025-21904

Description

In the Linux kernel, the following vulnerability has been resolved:caif_virtio: fix wrong pointer check in cfv_probe()del_vqs() frees virtqueues, therefore cfv->vq_tx pointer should be checkedfor NULL before calling it, not cfv->vdev. Also the current implementationis redundant because the pointer cfv->vdev is dereferenced before it ischecked for NULL.Fix this by checking cfv->vq_tx for NULL instead of cfv->vdev beforecalling del_vqs().

POC

Reference

No PoCs from references.

Github

- https://github.com/ARPSyndicate/cve-scores

- https://github.com/w4zu/Debian_security