[Top][All Lists]

[Date Prev][Date Next][Thread Prev][Thread Next][Date Index][Thread Index]

Re: [Qemu-devel] [PATCH] hw/arm_gic.c: Ignore attempts to complete nonex

From: andrzej zaborowski
Subject: Re: [Qemu-devel] [PATCH] hw/arm_gic.c: Ignore attempts to complete nonexistent IRQs
Date: Mon, 5 Dec 2011 21:25:52 +0100

On 1 December 2011 19:37, Peter Maydell <address@hidden> wrote:
> Ignore attempts to complete non-existent IRQs; this fixes a buffer
> overrun if the guest writes a bad value to the GICC_EOIR register.
> (This case is UNPREDICTABLE so ignoring it is a valid choice.)
> Note that doing nothing if the guest writes 1023 to this register
> is not in fact a change in behaviour: the old code would also
> always do nothing in this case but in a non-obvious way.
> (The buffer overrun was noted by Coverity, see bug 887883.)

Thanks, applied this patch also.


reply via email to

[Prev in Thread] Current Thread [Next in Thread]