Bug 2486475 (CVE-2026-46284) - CVE-2026-46284 kernel: mm/hugetlb: fix early boot crash on parameters without '=' separator
Summary: CVE-2026-46284 kernel: mm/hugetlb: fix early boot crash on parameters without...
Keywords:
Status: NEW
Alias: CVE-2026-46284
Product: Security Response
Classification: Other
Component: vulnerability
Version: unspecified
Hardware: All
OS: Linux
low
low
Target Milestone: ---
Assignee: Product Security
QA Contact:
URL:
Whiteboard:
Depends On:
Blocks:
TreeView+ depends on / blocked
 
Reported: 2026-06-08 17:04 UTC by OSIDB Bzimport
Modified: 2026-06-08 19:48 UTC (History)
2 users (show)

Fixed In Version:
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Description OSIDB Bzimport 2026-06-08 17:04:00 UTC 
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.
Comment 1 Keith Grant 2026-06-08 19:44:33 UTC 
Upstream advisory:
https://lore.kernel.org/linux-cve-announce/2026060842-CVE-2026-46284-229a@gregkh/T
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