CVE-2026-46078EPSS p3.1%
CVE-2026-46078CVE-2026-46078
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
Scoring
| CVSS | 7.1 () |
| Vector | CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:N/A:H |
| EPSS | 0.13% probability of exploitation · percentile 3.1% · 2026-06-19T12:03:05Z |
| Last modified | 2026-06-01 |
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