CVE-2026-31530

In the Linux kernel, the following vulnerability has been resolved: cxl/port: Fix use after free of parentport in cxldetachep cxldetachep is called during bottom-up removal when all CXL memory devices beneath a switch port have been removed. For each port in the hierarchy it locks both the port a...

CVE-2026-31530

The CVE-2026-31530 entry is backed by concrete details in the connected documents: in the Linux kernel’s cxl subsystem, the vulnerability stems from a use-after-free of parent_port during cxl_detach_ep() when removing CXL memory devices. The root cause is the absence of a lifetime guarantee betwe...