CVE-2026-53324

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

Description An issue exists in the mana network driver regarding the naming of debugfs directories. The driver previously used a hardcoded "0" for Physical Functions (PFs) and the pci slot name() function for Virtual Functions (VFs). This implementation caused two problems: first, pci slot name() could dereference a NULL pdev->slot pointer in environments such as nested KVM or generic VFIO passthrough, leading to a NULL pointer dereference. Second, the use of non-unique names for multiple PFs or VFs across different PCI domains could result in -EEXIST errors during the execution of the debugfs create dir() function.

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