CVE-2025-21815

See a problem?
Please try reporting it to the source first.
Source
https://cve.org/CVERecord?id=CVE-2025-21815
Import Source
https://storage.googleapis.com/osv-test-cve-osv-conversion/osv-output/CVE-2025-21815.json
JSON Data
https://api.test.osv.dev/v1/vulns/CVE-2025-21815
Downstream
Related
Published
2025-02-27T20:04:14.733Z
Modified
2026-03-12T02:16:26.788526Z
Summary
mm/compaction: fix UBSAN shift-out-of-bounds warning
Details

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 isolatefreepagesblock(). The bogus compoundorder can be any value because it is union with flags. Add back the MAXPAGE_ORDER check to fix the warning.

Database specific 
{
    "cna_assigner": "Linux",
    "osv_generated_from": "https://github.com/CVEProject/cvelistV5/tree/main/cves/2025/21xxx/CVE-2025-21815.json"
}
References

Affected packages

Git / git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git

Affected ranges

Type
GIT
Repo
https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git
Events
Introduced
3da0272a4c7d0d37b47b28e87014f421296fc2be
Fixed
4491159774d973a9e2e998d25d8fbb20fada6dfa
Fixed
10b7d3eb535098ccd4c82a182a33655d8a0e5c88
Fixed
d1366e74342e75555af2648a2964deb2d5c92200

Database specific

source 
"https://storage.googleapis.com/osv-test-cve-osv-conversion/osv-output/CVE-2025-21815.json"