CVE-2026-46078

Last refreshed2026-10-17

Status: UPDATED | Advisory ID: CVE-2026-46078

Key Details

CVE	CVE-2026-46078
CVSS Score / Version	7.1 (High) / CVSS v3.1
Updated	2026-10-16
CVSS Vector	`CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:N/A:H`
CVSS Prose	attack vector is local; attack complexity is low; privileges required is none; user interaction is required; scope is unchanged; confidentiality impact is high; integrity impact is none; availability impact is high.
Affected products	Linux Kernel
Classified as	CWE-125 (Out-of-bounds Read)

Vendor	Product	Affected Versions	Patch Status
Linux	Linux Kernel

Vendor

Product

Affected Versions

Patch Status

Linux

Linux Kernel

Subsystems	OT Supporting Infrastructure
Sectors	All Sectors

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 (NVD)

Monitor Linux's web page for any future patch releases.

Source	Reference
NVD	https://nvd.nist.gov/vuln/detail/CVE-2026-46078
CVE	https://www.cve.org/CVERecord?id=CVE-2026-46078

Source

Reference

NVD

CVE