Messages in this thread | | | Subject | Re: [PATCH 1/2] drm/i915: fix integer overflow in i915_gem_execbuffer2() | From | Xi Wang <> | Date | Fri, 6 Apr 2012 09:46:46 -0400 |
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On Apr 6, 2012, at 9:36 AM, Chris Wilson wrote:
> On Fri, 6 Apr 2012 08:58:18 -0400, Xi Wang <xi.wang@gmail.com> wrote: >> A large args->buffer_count from userspace may overflow the allocation >> size, leading to out-of-bounds access. >> >> Use kmalloc_array() to avoid that. > > I can safely say that exec list larger than 4GiB is going to be an > illegal operation and would rather the ioctl failed outright with > EINVAL.
On 32-bit platform?
- xi
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