Bug 2508146 - CVE-2026-62431 xen: Xen: Denial of Service due to division by zero in Viridian STIMER handling [fedora-all]
Summary: CVE-2026-62431 xen: Xen: Denial of Service due to division by zero in Viridia...
Keywords:
Status: NEW
Alias: None
Product: Fedora
Classification: Fedora
Component: xen
Version: 45
Hardware: Unspecified
OS: Unspecified
medium
medium
Target Milestone: ---
Assignee: Michael Young
QA Contact: Fedora Extras Quality Assurance
URL:
Whiteboard: {"flaws": ["d4c20045-77bf-4f7f-85d8-4...
Depends On:
Blocks: CVE-2026-62431
TreeView+ depends on / blocked
 
Reported: 2026-07-28 17:58 UTC by Ganesh
Modified: 2026-08-17 15:39 UTC (History)
2 users (show)

Fixed In Version:
Clone Of:
Environment:
Last Closed:
Type: ---
Embargoed:


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Description Ganesh 2026-07-28 17:58:47 UTC
Disclaimer: Community trackers are created by Red Hat Product Security team on a best effort basis. Package maintainers are required to ascertain if the flaw indeed affects their package, before starting the update process.

The logic to handle periodic Viridian STIMERs performs a division with an
unchecked user-controlled divisor value, that can be set to zero to cause a #DE
fault.

Comment 1 Aoife Moloney 2026-08-17 15:39:50 UTC
This bug appears to have been reported against 'rawhide' during the Fedora Linux 45 development cycle.
Changing version to 45.


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