CVE-2026-46078

About vulnerability

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 A flaw was found in the Linux kernel’s EROFS filesystem. A local attacker could exploit an out-of-bounds read vulnerability by creating a specially crafted EROFS image. This issue arises from incorrect calculations of directory entry name lengths, which can cause the system to read beyond allocated memory. Successful exploitation could lead to information disclosure or a system crash (denial of service).

Live-patch status from KernelCare for each operating system.