CVE-2024-58093

In the Linux kernel, the following vulnerability has been resolved: PCI/ASPM: Fix link state exit during switch upstream function removal Before 456d8aa37d0f ("PCI/ASPM: Disable ASPM on MFD function removal to avoid use-after-free"), we would free the ASPM link only after the last function on the bus pertaining to the given link was removed. That was too late. If function 0 is removed before sibling function, link->downstream would point to free'd memory after. After above change, we freed the ASPM parent link state upon any function removal on the bus pertaining to a given link. That is too early. If the link is to a PCIe switch with MFD on the upstream port, then removing functions other than 0 first would free a link which still remains parent_link to the remaining downstream ports. The resulting GPFs are especially frequent during hot-unplug, because pciehp removes devices on the link bus in reverse order. On that switch, function 0 is the virtual P2P bridge to the internal bus. Free exactly when function 0 is removed -- before the parent link is obsolete, but after all subordinate links are gone. [kwilczynski: commit log]

The following products are affected by CVE-2024-58093 vulnerability.

Here, you will find a curated list of external links that provide in-depth information to CVE-2024-58093.

URL	Resource
https://git.kernel.org/stable/c/cbf937dcadfd571a434f8074d057b32cd14fbea5
https://lore.kernel.org/linux-cve-announce/2025041652-CVE-2024-58093-2638@gregkh/T
https://nvd.nist.gov/vuln/detail/CVE-2024-58093
https://www.cve.org/CVERecord?id=CVE-2024-58093