Vulnerability Description
In the Linux kernel, the following vulnerability has been resolved: PCI/sysfs: Add CAP_SYS_ADMIN check to __resource_resize_store() Currently, the __resource_resize_store() allows writing to the resourceN_resize sysfs attribute to change a BAR's size without checking for capabilities, currently relying only on the file access check. Resizing a BAR modifies PCI device configuration and can disrupt active drivers. After the upcoming conversion to static attributes, it will also trigger resource file updates via sysfs_update_groups(). Add a CAP_SYS_ADMIN check to prevent unprivileged users from performing BAR resize operations.
References
- https://git.kernel.org/stable/c/25ec7f57deceec633f27bc93b615f951e2ade814
- https://git.kernel.org/stable/c/b722a607f858b9cd036075ea0efad553fb98e982
- https://git.kernel.org/stable/c/cbf0628c0b7db86c5ce36451f088101546acbf1d
FAQ
What is CVE-2026-97505?
CVE-2026-97505 is a documented vulnerability. In the Linux kernel, the following vulnerability has been resolved: PCI/sysfs: Add CAP_SYS_ADMIN check to __resource_resize_store() Currently, the __resource_resize_store() allows writing to the res...
How severe is CVE-2026-97505?
CVSS scoring is not yet available for CVE-2026-97505. Check NVD for updates.
Is there a patch for CVE-2026-97505?
Check the references section above for vendor advisories and patch information. Review vendor security bulletins for remediation guidance.