CVE-2024-26977 Information

Description

In the Linux kernel the following vulnerability has been resolved:

pci_iounmap(): Fix MMIO mapping leak

The ifdef ARCH_HAS_GENERIC_IOPORT_MAP accidentally also guards iounmap() which means MMIO mappings are leaked.

Move the guard so we call iounmap() for MMIO mappings.

Reference

https://git.kernel.org/stable/c/5e4b23e7a7b33a1e56bfa3e5598138a2234d55b6 https://git.kernel.org/stable/c/6d21d0356aa44157a62e39c0d1a13d4c69a8d0c8 https://git.kernel.org/stable/c/b5d40f02e7222da032c2042aebcf2a07de9b342f https://git.kernel.org/stable/c/f3749345a9b7295dd071d0ed589634cb46364f77 https://git.kernel.org/stable/c/af280e137e273935f2e09f4d73169998298792ed https://git.kernel.org/stable/c/7626913652cc786c238e2dd7d8740b17d41b2637