CVE-2025-39871 | Linux Kernel up to 6.6.106/6.12.47/6.16.7/6.17-rc5 dmaengine lib/refcount.c idxd_free reference count

A vulnerability described as critical has been identified in Linux Kernel up to 6.6.106/6.12.47/6.16.7/6.17-rc5. This issue affects the function idxd_free in the library lib/refcount.c of the component dmaengine. Executing manipulation can lead to improper update of reference count.

This vulnerability is tracked as CVE-2025-39871. The attack is only possible within the local network. No exploit exists.

Upgrading the affected component is recommended.VulDB Recent EntriesRead More