On Thu, Mar 26, 2015 at 10:48:18PM +0000, Yu, Fenghua wrote: > > > sctxt->fpstate=(void *)1 changes the fpstate pointer in the > > > sigcontext. It will generate segfault and bad frame info in kernel. > > > > > > This is expected behavior, right? Is this still a valid test? > > > > Just to be clear, I saw a full-on kernel panic induced from an unprivileged > > application. > > > > Are you seeing something different? > > I use latest tip tree. Maybe it has the fixes already. I see "bad frame" > reported in kernel. Seems the issue has been fixed in tip tree. >
Fenghua, if you're interested, the details are now public here: http://seclists.org/oss-sec/2015/q1/877 Quentin -- To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to [email protected] More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/
