CVE-2026-90319

A flaw was found in the Linux kernel's rapidio component. When the rio_add_net() function fails, a pointer to a network object (mport->net) is not properly cleared, leaving it pointing to a memory area that has already been released. A subsequent operation to unregister the mport can then attempt to access or free this already-freed memory, leading to a use-after-free vulnerability. This could result in system instability or a denial of service.

The CVSS score(s) listed for this vulnerability do not reflect the associated product's status, and are included for informational purposes to better understand the severity of this vulnerability.