CVE-2025-68806: Linux

High severity, CVSS 7.5. EPSS: 0.4% chance of exploitation in the next 30 days.

In the Linux kernel, the following vulnerability has been resolved: ksmbd: fix buffer validation by including null terminator size in EA length The smb2_set_ea function, which handles Extended Attributes (EA), was performing buffer validation checks that incorrectly omitted the size of the null terminating character (+1 byte) for EA Name. This patch fixes the issue by explicitly adding '+ 1' to EaNameLength where the null terminator is expected to be present in the buffer, ensuring the validation accurately reflects the total required buffer size.

Affected products

• Linux Linux: from 6.1.52, before 6.1.160 (fixed in 6.1.160); from 5.15.131, before 5.16 (fixed in 5.16); from 6.4.15, before 6.5 (fixed in 6.5); from 6.5.2, before 6.6 (fixed in 6.6); from 6.6, before 6.6.120 (fixed in 6.6.120); from 6.7, before 6.12.64 (fixed in 6.12.64); …

Published 2026-01-13. Last modified 2026-07-30.