CVE-2026-53015
kernel: erofs: unify lcn as u64 for 32-bit platforms
Severity
LowRed Hat Product Security
CVSS 3.1
Review impact separately from score.
Published · June 24, 2026
Updated · July 15, 2026
Description
A flaw was found in the Linux kernel's erofs filesystem. On 32-bit platforms, the lcn variable, used for logical cluster numbers, was defined as a 32-bit integer. This could lead to truncation when calculating offsets larger than 4 Gigabytes (GiB), potentially causing incorrect data handling within the filesystem.
CVSS score applicability
The CVSS score(s) listed for this vulnerability do not reflect the associated product's status, and are included for informational purposes to better understand the severity of this vulnerability.
Mitigation
No mitigation is specified in collected source.
CVSS / CWE
CVSS 3.1 · 5.5CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H
CWE-190 · Integer Overflow or Wraparound