5.5

CVE-2026-46284

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

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.
Daten sind bereitgestellt durch National Vulnerability Database (NVD)
Linux ≫ Linux Kernel Version >= 6.15 < 6.18.27
Linux ≫ Linux Kernel Version >= 6.19 < 7.0.4
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Zu dieser CVE wurde keine Warnung gefunden.
EPSS Metriken
Typ Quelle Score Percentile
EPSS FIRST.org 0.12% 0.022
CVSS Metriken
Quelle Base Score Exploit Score Impact Score Vector String
nvd@nist.gov 5.5 1.8 3.6
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H
CWE-476 NULL Pointer Dereference

The product dereferences a pointer that it expects to be valid but is NULL.

https://git.kernel.org/stable/c/2774bcf714739cc6bb86f8812167bb9fbda70f6a
Patch
https://git.kernel.org/stable/c/357c6d084b6137ae640209c5bfd01180f985c015
Patch
https://git.kernel.org/stable/c/c45b354911d01565156e38d7f6bc07edb51fc34c
Patch