CVE-2025-38069

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

Description A double free issue in the Linux kernel has been resolved. The issue occurred during the initialization of the Endpoint driver, specifically when handling the PERST# deassertion. The pci epf test alloc space() function allocates all BARs, which are freed if epc set bar() fails. However, the error path did not clear the previous assignment to epf test->reg[bar], leading to a double free situation when the host reboots and the BAR allocation sequence restarts. The fix ensures that pci epf alloc space() and pci epf free space() invocations are symmetric, and sets epf test->reg[bar] to NULL when memory is freed.

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