Re: [BUG] x86: apic: Possible null pointer dereference by apic_ack_edge
From: Thomas Gleixner
Date: Sun Oct 11 2015 - 04:31:52 EST
On Sat, 10 Oct 2015, William Breathitt Gray wrote:
> In mainline kernel version 4.3-rc4, the following line located in the
> apic_ack_edge function definition can result in a null pointer dereference:
>
> irq_complete_move(irqd_cfg(data));
>
> The irqd_cfg function may return a value of NULL.
data is never NULL when apic_ack_edge() is called.
Thanks,
tglx
--
To unsubscribe from this list: send the line "unsubscribe linux-kernel" in
the body of a message to majordomo@xxxxxxxxxxxxxxx
More majordomo info at http://vger.kernel.org/majordomo-info.html
Please read the FAQ at http://www.tux.org/lkml/