Microsoft Security Response Center guidance
Vendor revision: Nov 9, 2026Release Notes
Vulnerability intelligence
CVE-2026-100082. It is not in the current CISA KEV record we collected. That does not prove exploitation has not occurred.
Release Notes
In the Linux kernel, the following vulnerability has been resolved:
xen-blkback: Avoid UAF when reading I/O statistics
Reading I/O statistics via sysfs concurrently with tearing down a frontend device might result in UAF or a NULL dereference, as the reading of the statistics data is not synchronized with freeing the data.
Use a rwlock for synchronizing.
This is XSA-528 / CVE-2026-100082
Source: NVD