CVE-2026-46078

In the Linux kernel, the following vulnerability has been resolved: erofs: fix the out-of-bounds nameoff handling for trailing dirents Currently we already have boundary-checks for nameoffs, but the trailing dirents are special since the namelens are calculated with strnlen() with unchecked nameoffs. If a crafted EROFS has a trailing dirent with nameoff >= maxsize, maxsize - nameoff can underflow, causing strnlen() to read past the directory block. nameoff0 should also be verified to be a multiple of `sizeof(struct erofs_dirent)` as well [1]. [1] https://sashiko.dev/#/patchset/20260416063511.3173774-1-hsiangkao%40linux.alibaba.com

Affected products

Linux Kernel, Ubuntu, Opensuse Tumbleweed

Linux Linux Kernel

< 5.10.259, 5.15.210, 6.1.175, 6.6.140, 6.12.86, 6.18.27, 7.0.4

Fix

Available

CVSS 3.1

7.1 HIGH

EPSS

0.1% (3th percentile)

Weakness

CWE-125

NVD status

Undergoing Analysis

Published

2026-05-27

No exploit for CVE-2026-46078 has been indexed yet. Our index is built from live traffic and upstream syncs, so this page can only say what it knows — not that no exploit exists.