CVE-2026-64151
HIGH8.4CVSS v3
—CVSS v2
0.12%
EPSS (exploit probability)
—CWE
Description
In the Linux kernel, the following vulnerability has been resolved:
iommupt: Check for missing PAGE_SIZE in the pgsize_bitmap
Sashiko pointed out that the driver could drop PAGE_SIZE from the
pgsize_bitmap. That is technically allowed but nothing does it, and
such an iommu_domain would not be used with the DMA API today.
Still, it is against the design and it is trivial to fix up. Lift
the PT_WARN_ON to the if branch and just skip the fast path.
CVSS v3 vector: CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:C/C:H/I:H/A:N
Affected routers (0)
No routers currently mapped to this CVE in our database.