CVE-2026-62437
x86: DMs may cause mem leak by IRQ binding
CVSS Score
6.5
EPSS Score
0.0%
EPSS Percentile
0th
When guests are terminated, various pieces of cleanup need carrying out. The cleaning up of PCI devices which were assigned to guests, and the associated removal of tracking structures for IRQs used by the devices occurs relatively early in the process. Unfortunately after that point the guest about to be terminated could cause its device model (DM) to re-establish such tracking structures, by having it bind one or more IRQs anew. While some of those tracking structures would still be cleaned up later on, at least one would not be.
| Vendor | xen |
| Product | xen |
| Published | Sep 8, 2026 |
| Last Updated | Sep 10, 2026 |
Stay Ahead of the Next One
Get instant alerts for xen xen
Be the first to know when new medium vulnerabilities affecting xen xen are published — delivered to Slack, Telegram or Discord.
Get Free Alerts →
Free · No credit card · 60 sec setup
Affected Versions
Xen / Xen
All versions affected References
Credits
This issue was discovered by Jan Beulich of SUSE.