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
Advisories

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Fixes

Solution

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Workaround

No workaround given by the vendor.

History

Fri, 06 Nov 2026 22:00:00 +0000

Type Values Removed Values Added
First Time appeared Linux linux
Vendors & Products Linux linux

Fri, 06 Nov 2026 20:15:00 +0000

Type Values Removed Values Added
Weaknesses CWE-416
CWE-476

Fri, 06 Nov 2026 19:30:00 +0000


Fri, 06 Nov 2026 18:30:00 +0000

Type Values Removed Values Added
Description 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
Title xen-blkback: Avoid UAF when reading I/O statistics
First Time appeared Linux
Linux linux Kernel
CPEs cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*
Vendors & Products Linux
Linux linux Kernel
References

Projects

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cve-icon MITRE

Status: PUBLISHED

Assigner: Linux

Published:

Updated: 2026-11-06T19:08:45.432Z

Reserved: 2026-09-25T10:25:14.456Z

Link: CVE-2026-100082

cve-icon Vulnrichment

No data.

cve-icon NVD

Status : Received

Published: 2026-11-06T19:17:03.517

Modified: 2026-11-06T19:17:03.517

Link: CVE-2026-100082

cve-icon Redhat

No data.

cve-icon OpenCVE Enrichment

Updated: 2026-11-06T21:43:05Z

Weaknesses