Vulnerability CVE-2024-26977


Published: 2024-05-01

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.

 References:
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

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