CVE-2025-21815

Published: Feb 27, 2025

Modified: May 11, 2026

PUBLISHED

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.

Vendor	Product	Versions
Linux	Linux	affected `3da0272a4c7d0d37b47b28e87014f421296fc2be - < 4491159774d973a9e2e998d25d8fbb20fada6dfa` affected `3da0272a4c7d0d37b47b28e87014f421296fc2be - < 10b7d3eb535098ccd4c82a182a33655d8a0e5c88` affected `3da0272a4c7d0d37b47b28e87014f421296fc2be - < d1366e74342e75555af2648a2964deb2d5c92200`
Linux	Linux	affected `6.7` unaffected `0 - < 6.7` unaffected `6.12.14 - <= 6.12.` unaffected `6.13.3 - <= 6.13.` unaffected `6.14 - <= *`

References

https://git.kernel.org/stable/c/4491159774d973a9e2e998d25d8fbb20fada6dfa

https://git.kernel.org/stable/c/10b7d3eb535098ccd4c82a182a33655d8a0e5c88

https://git.kernel.org/stable/c/d1366e74342e75555af2648a2964deb2d5c92200

Security Training

Train your team to recognize and prevent security threats with our comprehensive security awareness program.

Start Training

Vulnerability Scanning

Discover vulnerabilities in your applications and infrastructure before attackers do.

Scan Now

CVE-2025-21815

Description

Affected Products

References