PT-2026-64512 · Linux+1 · Linux Kernel+1
CVE-2026-64291
·
Published
2026-07-25
·
Updated
2026-09-07
CVSS v3.1
5.5
Medium
| Vector | AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H |
Name of the Vulnerable Software and Affected Versions
Linux kernel (affected versions not specified)
Description
An issue exists in the
iommufd veventq alloc() function where it accepts any non-zero veventq depth from userspace, with an upper bound set at U32 MAX. This allows userspace to allocate excessively large queues, which can lead to the exhaustion of kernel memory reserves.Recommendations
At the moment, there is no information about a newer version that contains a fix for this vulnerability.
Exploit
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Related Identifiers
Affected Products
Linux Kernel
Ubuntu