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.
| Product | Vendor Advisory | Solution File | Added | Published |
|---|---|---|---|---|
| Amazon_linux_2023 | — | Upgrade python3-perf6.12Upgrade perf6.12-debuginfoUpgrade kernel6.12Upgrade bpftool6.12-debuginfoUpgrade kernel-livepatch-6.12.111-136.204Upgrade kernel6.12-develUpgrade python3-perf6.12-debuginfoUpgrade kernel6.12-modules-extra-commonUpgrade kernel6.12-debuginfoUpgrade perf6.12Upgrade kernel6.12-headersUpgrade bpftool6.12Upgrade kernel6.12-tools-debuginfoUpgrade kernel6.12-toolsUpgrade kernel6.12-tools-develUpgrade kernel6.12-modules-extraUpgrade kernel6.12-debuginfo-common-x86_64Upgrade kernel6.12-debuginfo-common-aarch64 | Oct 13, 2026 | Sep 24, 2026 |
| Debian | — | Upgrade linuxUpgrade linux-6.12 | Sep 30, 2026 | Sep 24, 2026 |
| Redhat_linux | — | No solution exists | Sep 30, 2026 | Sep 24, 2026 |
| Vmware Photon_os | — | Use 'tdnf update' to upgrade all packages to the latest version. | Oct 13, 2026 | Sep 24, 2026 |
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