CVE-2026-68175

Name of the Vulnerable Software and Affected Versions Linux kernel (affected versions not specified)

Description A resource leak exists in the mmiotrace tracer when the trace pipe is closed. The mmio pipe open() function allocates a header iter and takes a pci dev reference upon opening the trace pipe. While mmio close() is designed to free these resources, it was only linked to the .close callback. Because tracing release pipe() invokes the .pipe close callback instead of .close when the file is released, the header iter allocation is leaked and a stale pci dev reference remains. This can lead to a massive memory leak if the trace pipe is opened and closed repeatedly without being read to completion.

Recommendations At the moment, there is no information about a newer version that contains a fix for this vulnerability.