RE: [PATCH 01/13] ACPI/IPMI: Fix potential response buffer overflow

From: Zheng, Lv
Date: Tue Jul 23 2013 - 20:22:07 EST


> From: linux-acpi-owner@xxxxxxxxxxxxxxx
> [mailto:linux-acpi-owner@xxxxxxxxxxxxxxx] On Behalf Of Greg KH
> Sent: Tuesday, July 23, 2013 10:54 PM
>
> On Tue, Jul 23, 2013 at 04:08:59PM +0800, Lv Zheng wrote:
> > This patch enhances sanity checks on message size to avoid potential
> > buffer overflow.
> >
> > The kernel IPMI message size is IPMI_MAX_MSG_LENGTH(272 bytes) while
> > the ACPI specification defined IPMI message size is 64 bytes. The
> > difference is not handled by the original codes. This may cause crash
> > in the response handling codes.
> > This patch fixes this gap and also combines rx_data/tx_data to use
> > single data/len pair since they need not be seperated.
> >
> > Signed-off-by: Lv Zheng <lv.zheng@xxxxxxxxx>
> > Reviewed-by: Huang Ying <ying.huang@xxxxxxxxx>
> > ---
> > drivers/acpi/acpi_ipmi.c | 100
> > ++++++++++++++++++++++++++++------------------
> > 1 file changed, 61 insertions(+), 39 deletions(-)
>
> <formletter>
>
> This is not the correct way to submit patches for inclusion in the stable kernel
> tree. Please read Documentation/stable_kernel_rules.txt
> for how to do this properly.
>
> </formletter>
>
> Same goes for the other patches you sent in this thread...

OK, I'll add prerequisites for each that want to be accepted by the stable queue and re-send them (PATCH 01-06).

Thanks and best regards
-Lv

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