Messages in this thread | | | Date | Wed, 16 Mar 2016 16:35:34 +0100 (CET) | From | Thomas Gleixner <> | Subject | Re: kernel/irq: Null-ptr deref on handle_irq_event_percpu function |
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On Wed, 16 Mar 2016, Baozeng Ding wrote:
> +linux-kernel and irq maitainer. > > On Thu, Feb 25, 2016 at 04:16:10AM -0500, Red Hat Product Security wrote: > > > > > > I cannot produce the bug, but by taking a look at the > > > code(irq/handle.c line176), it may > > > casue a null pointer deref: > > > > > > http://lxr.free-electrons.com/source/kernel/irq/handle.c#L176
That's the upstream code which is different from what you are pasting.
> > > 174 retval |= res; > > > 175 action = action->next; > > > 176 } while (action); //when action is null, it will > > > //cause a null pointer deref.
That lacks upstream commit 570540d507 or stable 4.4.y commit 827685a637
Thanks,
tglx
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