On Tue, Jun 17, 2014 at 01:48:59PM +0200, Arnd Bergmann wrote:
> On Tuesday 17 June 2014, Vinod Koul wrote:
> > > Anyway, if you use the __packed attribute, best apply it only to
> > > the individual __u64 member(s), not the entire struct, otherwise
> > > you might change user space programs in a
On Tue, Jun 17, 2014 at 01:48:59PM +0200, Arnd Bergmann wrote:
On Tuesday 17 June 2014, Vinod Koul wrote:
Anyway, if you use the __packed attribute, best apply it only to
the individual __u64 member(s), not the entire struct, otherwise
you might change user space programs in a subtle way
On Tuesday 17 June 2014, Vinod Koul wrote:
> > Anyway, if you use the __packed attribute, best apply it only to
> > the individual __u64 member(s), not the entire struct, otherwise
> > you might change user space programs in a subtle way when the alignment
> > changes from 4 to 1 byte.
>
> then
On Tuesday 17 June 2014, Vinod Koul wrote:
Anyway, if you use the __packed attribute, best apply it only to
the individual __u64 member(s), not the entire struct, otherwise
you might change user space programs in a subtle way when the alignment
changes from 4 to 1 byte.
then wouldn't it
On Fri, Jun 13, 2014 at 04:19:32PM +0200, Arnd Bergmann wrote:
> On Monday 09 June 2014, Vinod Koul wrote:
> > On Mon, Jun 09, 2014 at 09:24:53AM +0200, Takashi Iwai wrote:
> > > At Mon, 09 Jun 2014 16:46:32 -0400,
> > > Wang, Xiaoming wrote:
> > > >
> > > >
> > > > The size of struct
On Fri, Jun 13, 2014 at 04:19:32PM +0200, Arnd Bergmann wrote:
On Monday 09 June 2014, Vinod Koul wrote:
On Mon, Jun 09, 2014 at 09:24:53AM +0200, Takashi Iwai wrote:
At Mon, 09 Jun 2014 16:46:32 -0400,
Wang, Xiaoming wrote:
The size of struct snd_compr_avail is 0x1c in
On Monday 09 June 2014, Vinod Koul wrote:
> On Mon, Jun 09, 2014 at 09:24:53AM +0200, Takashi Iwai wrote:
> > At Mon, 09 Jun 2014 16:46:32 -0400,
> > Wang, Xiaoming wrote:
> > >
> > >
> > > The size of struct snd_compr_avail is 0x1c in 32bit kernel,
> > > while it is 0x20 in 64bit kernel 0x4
On Monday 09 June 2014, Vinod Koul wrote:
On Mon, Jun 09, 2014 at 09:24:53AM +0200, Takashi Iwai wrote:
At Mon, 09 Jun 2014 16:46:32 -0400,
Wang, Xiaoming wrote:
The size of struct snd_compr_avail is 0x1c in 32bit kernel,
while it is 0x20 in 64bit kernel 0x4 bytes added because
Dear Takashi
> -Original Message-
> From: Koul, Vinod
> Sent: Monday, June 09, 2014 11:36 PM
> To: Takashi Iwai
> Cc: Wang, Xiaoming; Kp, Jeeja; dhowe...@redhat.com; a...@arndb.de;
> t...@linutronix.de; mtk.manpa...@gmail.com;
> paul...@linux.vnet.ibm.com; da...@redhat.com;
>
Dear Takashi
-Original Message-
From: Koul, Vinod
Sent: Monday, June 09, 2014 11:36 PM
To: Takashi Iwai
Cc: Wang, Xiaoming; Kp, Jeeja; dhowe...@redhat.com; a...@arndb.de;
t...@linutronix.de; mtk.manpa...@gmail.com;
paul...@linux.vnet.ibm.com; da...@redhat.com;
On Mon, Jun 09, 2014 at 09:24:53AM +0200, Takashi Iwai wrote:
> At Mon, 09 Jun 2014 16:46:32 -0400,
> Wang, Xiaoming wrote:
> >
> >
> > The size of struct snd_compr_avail is 0x1c in 32bit kernel,
> > while it is 0x20 in 64bit kernel 0x4 bytes added because of
> > alignment. It is OK when 32bit
At Mon, 09 Jun 2014 16:46:32 -0400,
Wang, Xiaoming wrote:
>
>
> The size of struct snd_compr_avail is 0x1c in 32bit kernel,
> while it is 0x20 in 64bit kernel 0x4 bytes added because of
> alignment. It is OK when 32bit kernel met 32bit user space.
> There exist stack corruption if 64bit kernel
The size of struct snd_compr_avail is 0x1c in 32bit kernel,
while it is 0x20 in 64bit kernel 0x4 bytes added because of
alignment. It is OK when 32bit kernel met 32bit user space.
There exist stack corruption if 64bit kernel met 32bit user
space, because the size of struct snd_compr_avail is 0x1c
The size of struct snd_compr_avail is 0x1c in 32bit kernel,
while it is 0x20 in 64bit kernel 0x4 bytes added because of
alignment. It is OK when 32bit kernel met 32bit user space.
There exist stack corruption if 64bit kernel met 32bit user
space, because the size of struct snd_compr_avail is 0x1c
At Mon, 09 Jun 2014 16:46:32 -0400,
Wang, Xiaoming wrote:
The size of struct snd_compr_avail is 0x1c in 32bit kernel,
while it is 0x20 in 64bit kernel 0x4 bytes added because of
alignment. It is OK when 32bit kernel met 32bit user space.
There exist stack corruption if 64bit kernel met
On Mon, Jun 09, 2014 at 09:24:53AM +0200, Takashi Iwai wrote:
At Mon, 09 Jun 2014 16:46:32 -0400,
Wang, Xiaoming wrote:
The size of struct snd_compr_avail is 0x1c in 32bit kernel,
while it is 0x20 in 64bit kernel 0x4 bytes added because of
alignment. It is OK when 32bit kernel met
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