CVE-2026-46284

MEDIUM

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

Title source: cna
STIX 2.1

Description

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.

Scores

CVSS v3 5.5
EPSS 0.0012
EPSS Percentile 2.2%
Attack Vector LOCAL
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H

Details

CWE
CWE-476
Status published
Products (12)
linux/Kernel 6.15.0 - 6.18.27linux
linux/Kernel 6.19.0 - 7.0.4linux
Linux/Linux < 6.15
Linux/Linux 5b47c02967ab770aa7661c8863a21b2fd59e35ff - 2774bcf714739cc6bb86f8812167bb9fbda70f6a
Linux/Linux 5b47c02967ab770aa7661c8863a21b2fd59e35ff - 357c6d084b6137ae640209c5bfd01180f985c015
Linux/Linux 5b47c02967ab770aa7661c8863a21b2fd59e35ff - c45b354911d01565156e38d7f6bc07edb51fc34c
Linux/Linux 6.15
Linux/Linux 6.18.27 - 6.18.*
Linux/Linux 7.0.4 - 7.0.*
Linux/Linux 7.1
... and 2 more
Published Jun 08, 2026
Tracked Since Jun 08, 2026