CVE-2025-21815

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.

CVSS v3 7.1 HIGH

7.1^/10

CVSS v3 : HIGH

Vector :

Exploitability : 1.8 / Impact : 5.2

Attack Vector LOCAL

Attack Complexity LOW

Privileges Required LOW

User Interaction NONE

Confidentiality Impact HIGH

Integrity Impact NONE

Availability Impact HIGH

Scope UNCHANGED

References

Link	Resource
https://git.kernel.org/stable/c/10b7d3eb535098ccd4c82a182a33655d8a0e5c88	Patch
https://git.kernel.org/stable/c/4491159774d973a9e2e998d25d8fbb20fada6dfa	Patch
https://git.kernel.org/stable/c/d1366e74342e75555af2648a2964deb2d5c92200	Patch

Configurations

Configuration 1 (hide)

OR	cpe:2.3:o:linux:linux_kernel::::::::
	cpe:2.3:o:linux:linux_kernel::::::::

History

No history.

Information

Published : 2025-02-27 20:16

Updated : 2025-10-28 02:53

NVD link : CVE-2025-21815

Mitre link : CVE-2025-21815

CVE.ORG link : CVE-2025-21815

JSON object : View

Products Affected

linux

linux_kernel

CWE

CWE-125

Out-of-bounds Read

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