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Date: Thu, 20 Dec 2012 19:06:22 -0800 From: Kees Cook <keescook@...omium.org> To: LKML <linux-kernel@...r.kernel.org> Cc: Thomas Gleixner <tglx@...utronix.de>, Ingo Molnar <mingo@...hat.com>, "H. Peter Anvin" <hpa@...or.com>, x86@...nel.org, Kees Cook <keescook@...omium.org> Subject: Re: [RFC] stack and heap are executable on x86_64 On Thu, Dec 20, 2012 at 7:00 PM, Kees Cook <keescook@...omium.org> wrote: > While trying to fix test_nx, I discovered that it looks like stack and > heap are executable again (at least on x86_64). :( I tried to bisect Btw, this ends up looking like this on v3.4: [ 2.486223] test_nx: Testing NX protection ... [ 2.487468] test_nx: calling ffff88001dd57e45 (0xC3) [ 2.488766] test_nx: stack is executable [ 2.489802] test_nx: calling ffff88001e2c7580 (0xC3) [ 2.491106] test_nx: heap is executable [ 2.492086] test_nx: calling ffffffff81803c80 (0xC3) [ 2.493201] test_nx: calling ffffffffa0002220 (0xC3) [ 2.493843] test_nx: calling ffffffffa0001224 (0xC3) [ 2.494549] test_nx: Done testing. -Kees -- Kees Cook Chrome OS Security -- To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majordomo@...r.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/
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