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

CVSS v3 7.1 HIGH

7.1^/10

CVSS v3 : HIGH

Vector :

Exploitability : 1.8 / Impact : 5.2

Attack Vector LOCAL

Attack Complexity LOW

Privileges Required NONE

User Interaction REQUIRED

Confidentiality Impact HIGH

Integrity Impact NONE

Availability Impact HIGH

Scope UNCHANGED

References

Link	Resource
https://git.kernel.org/stable/c/1d55445226c75ddd4e78b09b3e7d99109b28c366	Patch
https://git.kernel.org/stable/c/222055e6b4063abd2d9e13c3d49bbd1724c50789	Patch
https://git.kernel.org/stable/c/48b27a955d22391c7f30169fa7b6b2e1977f1ce4	Patch
https://git.kernel.org/stable/c/80a23c6d1aba35be8746d74ac14e6ba5ae46da21	Patch
https://git.kernel.org/stable/c/8ebb951a284b7446e025afc7dc5e9516ef9a7214	Patch
https://git.kernel.org/stable/c/a8ee527807f7d97e55ce2ef2906f7f34975eb1c7	Patch
https://git.kernel.org/stable/c/aa16dca1b062355181ef215229eeac249d7c0d61	Patch
https://git.kernel.org/stable/c/d18a3b5d337fa412a38e776e6b4b857a58836575	Patch

Configurations

Configuration 1 (hide)

OR	cpe:2.3:o:linux:linux_kernel::::::::
	cpe:2.3:o:linux:linux_kernel::::::::
	cpe:2.3:o:linux:linux_kernel::::::::
	cpe:2.3:o:linux:linux_kernel::::::::
	cpe:2.3:o:linux:linux_kernel::::::::
	cpe:2.3:o:linux:linux_kernel::::::::
	cpe:2.3:o:linux:linux_kernel::::::::

History

No history.

Information

Published : 2026-05-27 14:17

Updated : 2026-06-24 17:20

NVD link : CVE-2026-46078

Mitre link : CVE-2026-46078

CVE.ORG link : CVE-2026-46078

JSON object : View

Products Affected

linux

linux_kernel

CWE

CWE-125

Out-of-bounds Read

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