CVE-2026-46284

mm/hugetlb: fix early boot crash on parameters without '=' separator

published June 8, 2026

CVSS
—
EPSS
0%
Percentile
4.8
In the wild
Unconfirmed
What it is

In the Linux kernel, the following vulnerability has been resolved:

mm/hugetlb: fix early boot crash on parameters without '=' separator

If hugepages, hugepagesz, or default_hugepagesz are specified on the

kernel command line without the '=' separator, early parameter parsing

passes NULL to hugetlb_add_param(), which dereferences it in strlen() and

can crash the system during early boot.

Reject NULL values in hugetlb_add_param() and return -EINVAL instead.

The record
Technical detail
CVSS
Not scored
CVSS v4.0
Not supplied
EPSS
0.00160 · 4.8th percentile
Published
2026-06-08T15:41Z
EPSS history
Timeline
  • 08 JUN 15:41Z
    mm/hugetlb: fix early boot crash on parameters without '=' separator
    cvelistv5