CVE-2026-97505PCI/sysfs: Add CAP_SYS_ADMIN check to __resource_resize_store()
Updated under an hour ago ()
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No exploitation reported and no EPSS estimate yet.
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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.
- CVSS
- Not yet scored
- Weakness (CWE)
- Not given
- Known exploited
- Not in CISA's KEV catalog
- EPSS (exploitation in the next 30 days)
- Not loaded for this CVE
- Assigned by
- Linux
- NVD analysis
- Received
- Record last updated
- Sep 28, 2026
- First seen by InfoSec Signals
- Oct 9, 2026
Affected products
Linux Linux linux:linux (from the name) | from 91fa127794ac1c48069479b9d45eb4c7378c0e30 before b722a607f858b9cd036075ea0efad553fb98e982; from 91fa127794ac1c48069479b9d45eb4c7378c0e30 before cbf0628c0b7db86c5ce36451f088101546acbf1d; 91fa127794ac1c48069479b9d45eb4c7378c0e30 builds before 25ec7f57deceec633f27bc93b615f951e2ade814 | CNA record |
References
- https://git.kernel.org/stable/c/b722a607f858b9cd036075ea0efad553fb98e982
- https://git.kernel.org/stable/c/cbf0628c0b7db86c5ce36451f088101546acbf1d
- https://git.kernel.org/stable/c/25ec7f57deceec633f27bc93b615f951e2ade814
The CVE record on cve.org NVD's entry
The CVE record is authoritative. Products marked “from the name” were identified from the CNA's free-text names, not a CPE, and are matched less certainly. This product uses the NVD API but is not endorsed or certified by the NVD.