Description

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

Affected products

VendorProductVersions
LinuxLinux152a333a589560bee002e4c96761f1b560a5793c to <4fc9b12e43a3f19a01a8fb61f7961be79de20253; 152a333a589560bee002e4c96761f1b560a5793c to <858e4d98a86adf34584767388deb6c9b217f70c5; 152a333a589560bee002e4c96761f1b560a5793c to <582b0bf201157632cb5474c885989a6ebda46521; 152a333a589560bee002e4c96761f1b560a5793c to <2d8c7edcb661812249469f4a5b62e9339118846f
LinuxLinux5.3; 0 to <5.3; 6.12.91 to <=6.12.*; 6.18.33 to <=6.18.*; 7.0.10 to <=7.0.*; 7.1 to <=*

References

Authoritative sources

This page is a snapshot. For the latest enrichment and updates, view the record on CVE.org or the NVD.

Generated from the official CVE List on 25 Jun 2026 10:14 UTC.