Bug 2467084 (CVE-2026-43248) - CVE-2026-43248 kernel: vhost: move vdpa group bound check to vhost_vdpa
Summary: CVE-2026-43248 kernel: vhost: move vdpa group bound check to vhost_vdpa
Keywords:
Status: NEW
Alias: CVE-2026-43248
Product: Security Response
Classification: Other
Component: vulnerability
Version: unspecified
Hardware: All
OS: Linux
medium
medium
Target Milestone: ---
Assignee: Product Security
QA Contact:
URL:
Whiteboard:
Depends On:
Blocks:
TreeView+ depends on / blocked
 
Reported: 2026-05-06 13:03 UTC by OSIDB Bzimport
Modified: 2026-09-15 06:28 UTC (History)
2 users (show)

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

Attachments (Terms of Use)


Links
System ID Private Priority Status Summary Last Updated
Red Hat Product Errata RHSA-2026:67470 0 None None None 2026-09-15 06:28:15 UTC
Red Hat Product Errata RHSA-2026:67471 0 None None None 2026-09-15 06:14:22 UTC

Description OSIDB Bzimport 2026-05-06 13:03:24 UTC 
In the Linux kernel, the following vulnerability has been resolved:

vhost: move vdpa group bound check to vhost_vdpa

Remove duplication by consolidating these here.  This reduces the
posibility of a parent driver missing them.

While we're at it, fix a bug in vdpa_sim where a valid ASID can be
assigned to a group equal to ngroups, causing an out of bound write.
Comment 1 Keith Grant 2026-05-06 23:05:31 UTC 
Upstream advisory:
https://lore.kernel.org/linux-cve-announce/2026050602-CVE-2026-43248-7506@gregkh/T
Comment 5 Jon Orris 2026-09-15 06:14:22 UTC 
This issue has been addressed in the following products:

  Red Hat Enterprise Linux 10

Via RHSA-2026:67471 https://access.redhat.com/errata/RHSA-2026:67471
Comment 6 Jon Orris 2026-09-15 06:28:14 UTC 
This issue has been addressed in the following products:

  Red Hat Enterprise Linux 9

Via RHSA-2026:67470 https://access.redhat.com/errata/RHSA-2026:67470
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