CVE - CVE-2025-21831

CVE-ID
CVE-2025-21831	Learn more at National Vulnerability Database (NVD) • CVSS Severity Rating • Fix Information • Vulnerable Software Versions • SCAP Mappings • CPE Information
Description
In the Linux kernel, the following vulnerability has been resolved: PCI: Avoid putting some root ports into D3 on TUXEDO Sirius Gen1 commit 9d26d3a8f1b0 ("PCI: Put PCIe ports into D3 during suspend") sets the policy that all PCIe ports are allowed to use D3. When the system is suspended if the port is not power manageable by the platform and won't be used for wakeup via a PME this sets up the policy for these ports to go into D3hot. This policy generally makes sense from an OSPM perspective but it leads to problems with wakeup from suspend on the TUXEDO Sirius 16 Gen 1 with a specific old BIOS. This manifests as a system hang. On the affected Device + BIOS combination, add a quirk for the root port of the problematic controller to ensure that these root ports are not put into D3hot at suspend. This patch is based on https://lore.kernel.org/linux-pci/20230708214457.1229-2-mario.limonciello@amd.com but with the added condition both in the documentation and in the code to apply only to the TUXEDO Sirius 16 Gen 1 with a specific old BIOS and only the affected root ports.
References
Note: References are provided for the convenience of the reader to help distinguish between vulnerabilities. The list is not intended to be complete.
MISC:https://git.kernel.org/stable/c/5ee3dd6e59b834e4d66e8b16fc684749ee40a257 URL:https://git.kernel.org/stable/c/5ee3dd6e59b834e4d66e8b16fc684749ee40a257 MISC:https://git.kernel.org/stable/c/8852e056e297df1d8635ee7504e780d3184e45d0 URL:https://git.kernel.org/stable/c/8852e056e297df1d8635ee7504e780d3184e45d0 MISC:https://git.kernel.org/stable/c/a78dfe50fffe6058afed2bb04c50c2c9a16664ee URL:https://git.kernel.org/stable/c/a78dfe50fffe6058afed2bb04c50c2c9a16664ee MISC:https://git.kernel.org/stable/c/b1049f2d68693c80a576c4578d96774a68df2bad URL:https://git.kernel.org/stable/c/b1049f2d68693c80a576c4578d96774a68df2bad
Assigning CNA
kernel.org
Date Record Created
20241229	Disclaimer: The record creation date may reflect when the CVE ID was allocated or reserved, and does not necessarily indicate when this vulnerability was discovered, shared with the affected vendor, publicly disclosed, or updated in CVE.
Phase (Legacy)
Assigned (20241229)
Votes (Legacy)

Comments (Legacy)

Proposed (Legacy)
N/A
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