Hi, It looks like caaee6234d0 ("ptrace: use fsuid, fsgid, effective creds for fs access checks") got put into -stable (v4.4.3) without the required 3dfb7d8cdbc7 ("security: let security modules use PTRACE_MODE_* with bitmasks"). Please add 3dfb7d8cdbc7 to linux-4.4.y to unbreak Yama (and Smack). :) Thanks! -Kees -- Kees Cook Chrome OS & Brillo Security -- To unsubscribe from this list: send the line "unsubscribe stable" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html