CVE-2026-53015

In the Linux kernel, the following vulnerability has been resolved: erofs: unify lcn as u64 for 32-bit platforms As sashiko reported [1], `lcn` was typed as `unsigned long` (or `unsigned int` sometimes), which is only 32 bits wide on 32-bit platforms, which causes `(lcn << lclusterbits)` to be truncated at 4 GiB. In order to consolidate the logic, just use `u64` consistently around the codebase. [1] https://sashiko.dev/r/20260420034612.1899973-1-hsiangkao%40linux.alibaba.com

CVSS v3 5.5 MEDIUM

5.5^/10

CVSS v3 : MEDIUM

Vector :

Exploitability : 1.8 / Impact : 3.6

Attack Vector LOCAL

Attack Complexity LOW

Privileges Required LOW

User Interaction NONE

Confidentiality Impact NONE

Integrity Impact NONE

Availability Impact HIGH

Scope UNCHANGED

References

Link	Resource
https://git.kernel.org/stable/c/2d8c7edcb661812249469f4a5b62e9339118846f	Patch
https://git.kernel.org/stable/c/4fc9b12e43a3f19a01a8fb61f7961be79de20253	Patch
https://git.kernel.org/stable/c/582b0bf201157632cb5474c885989a6ebda46521	Patch
https://git.kernel.org/stable/c/858e4d98a86adf34584767388deb6c9b217f70c5	Patch

Configurations

Configuration 1 (hide)

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

History

No history.

Information

Published : 2026-06-24 17:17

Updated : 2026-07-15 13:55

NVD link : CVE-2026-53015

Mitre link : CVE-2026-53015

CVE.ORG link : CVE-2026-53015

JSON object : View

Products Affected

linux

linux_kernel

CWE

NVD-CWE-noinfo

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