CyberRota Analysis
This is a high severity vulnerability with a CVSS score of 7.1. It affects Linux.
CVE
CVE-2025-21815
Severity
HIGH
CVSS
7.1
EPSS
0.19%
Linux
Original NVD Description
In the Linux kernel, the following vulnerability has been resolved: mm/compaction: fix UBSAN shift-out-of-bounds warning syzkaller reported a UBSAN shift-out-of-bounds warning of (1UL << order) in isolate_freepages_block(). The bogus compound_order can be any value because it is union with flags. Add back the MAX_PAGE_ORDER check to fix the warning.
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