Description
In the Linux kernel before 6.2, mm/memory-tiers.c misinterprets the alloc_memory_type return value (expects it to be NULL in the error case, whereas it is actually an error pointer). NOTE: this is disputed by third parties because there are no realistic cases in which a user can cause the alloc_memory_type error case to be reached.
References (3)
Core 3
Core References
Issue Tracking, Patch, Third Party Advisory
https://bugzilla.suse.com/show_bug.cgi?id=1208844#c2
Mailing List, Patch, Release Notes
https://cdn.kernel.org/pub/linux/kernel/v6.x/ChangeLog-6.2
Scores
CVSS v3
5.5
EPSS
0.0004
EPSS Percentile
12.7%
Attack Vector
LOCAL
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H
CISA SSVC
Vulnrichment
Exploitation
none
Automatable
no
Technical Impact
partial
Details
CWE
CWE-476
Status
published
Products (2)
linux/linux_kernel
< 6.2
suse/linux_enterprise_server
15 sp5
Published
Mar 01, 2023
Tracked Since
Feb 18, 2026