Vulnerability Description
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 Score
HIGH
Affected Products
| Vendor | Product | Versions |
|---|---|---|
| Linux | Linux Kernel | >= 4.19, < 5.10.259 |
Related Weaknesses (CWE)
References
- https://git.kernel.org/stable/c/1d55445226c75ddd4e78b09b3e7d99109b28c366Patch
- https://git.kernel.org/stable/c/222055e6b4063abd2d9e13c3d49bbd1724c50789Patch
- https://git.kernel.org/stable/c/48b27a955d22391c7f30169fa7b6b2e1977f1ce4Patch
- https://git.kernel.org/stable/c/80a23c6d1aba35be8746d74ac14e6ba5ae46da21Patch
- https://git.kernel.org/stable/c/8ebb951a284b7446e025afc7dc5e9516ef9a7214Patch
- https://git.kernel.org/stable/c/a8ee527807f7d97e55ce2ef2906f7f34975eb1c7Patch
- https://git.kernel.org/stable/c/aa16dca1b062355181ef215229eeac249d7c0d61Patch
- https://git.kernel.org/stable/c/d18a3b5d337fa412a38e776e6b4b857a58836575Patch
FAQ
What is CVE-2026-46078?
CVE-2026-46078 is a vulnerability with a CVSS score of 7.1 (HIGH). 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...
How severe is CVE-2026-46078?
CVE-2026-46078 has been rated HIGH with a CVSS base score of 7.1/10. Review the CVSS metrics above for detailed severity breakdown.
Is there a patch for CVE-2026-46078?
Check the references section above for vendor advisories and patch information. Affected products include: Linux Linux Kernel.