VULNERABILITY INTELLIGENCE
CVE-2025-21815
CVSS score7.1 HIGH
EPSS probability0.19%
CISA KEVNot currently listed
Published2025-02-27
Last modified2026-06-17
CVSS vectorCVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:H
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.
Weakness classification
- nvd@nist.gov: CWE-125