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
Version statuses are supplied by the assigning organization. Consult the original record for detailed ranges and platform conditions.
Linux Linux
Default version status: unaffected
152a333a589560bee002e4c96761f1b560a5793c to < 18f9f3ddbf2ed6d245a4c6f91c51f7248f8a982caffected152a333a589560bee002e4c96761f1b560a5793c to < 4fc9b12e43a3f19a01a8fb61f7961be79de20253affected152a333a589560bee002e4c96761f1b560a5793c to < 858e4d98a86adf34584767388deb6c9b217f70c5affected152a333a589560bee002e4c96761f1b560a5793c to < 582b0bf201157632cb5474c885989a6ebda46521affected152a333a589560bee002e4c96761f1b560a5793c to < 2d8c7edcb661812249469f4a5b62e9339118846faffected
Linux Linux
Default version status: affected
5.3affected0 to < 5.3unaffected6.6.160 to ≤ 6.6.*unaffected6.12.91 to ≤ 6.12.*unaffected6.18.33 to ≤ 6.18.*unaffected7.0.10 to ≤ 7.0.*unaffected7.1 to ≤ *unaffected
References
- https://git.kernel.org/stable/c/18f9f3ddbf2ed6d245a4c6f91c51f7248f8a982c ↗
- https://git.kernel.org/stable/c/4fc9b12e43a3f19a01a8fb61f7961be79de20253 ↗
- https://git.kernel.org/stable/c/858e4d98a86adf34584767388deb6c9b217f70c5 ↗
- https://git.kernel.org/stable/c/582b0bf201157632cb5474c885989a6ebda46521 ↗
- https://git.kernel.org/stable/c/2d8c7edcb661812249469f4a5b62e9339118846f ↗