On Tue, Jul 30, 2019 at 10:39:38AM +0100, Will Deacon wrote:
> On Tue, Jul 30, 2019 at 11:37:13AM +0200, Greg KH wrote:
> > On Tue, Jul 30, 2019 at 10:25:47AM +0100, Will Deacon wrote:
> > > From: Will Deacon <will.deacon@xxxxxxx>
> > >
> > > [ Upstream commit 24951465cbd279f60b1fdc2421b3694405bcff42 ]
> > >
> > > arch/arm/ defines a SIGMINSTKSZ of 2k, so we should use the same value
> > > for compat tasks.
> > >
> > > Cc: <stable@xxxxxxxxxxxxxxx> # 4.9+
> > > Cc: Aurelien Jarno <aurelien@xxxxxxxxxxx>
> > > Cc: Arnd Bergmann <arnd@xxxxxxxx>
> > > Cc: Dominik Brodowski <linux@xxxxxxxxxxxxxxxxxxxx>
> > > Cc: "Eric W. Biederman" <ebiederm@xxxxxxxxxxxx>
> > > Cc: Andrew Morton <akpm@xxxxxxxxxxxxxxxxxxxx>
> > > Cc: Al Viro <viro@xxxxxxxxxxxxxxxxxx>
> > > Cc: Oleg Nesterov <oleg@xxxxxxxxxx>
> > > Reviewed-by: Dave Martin <Dave.Martin@xxxxxxx>
> > > Reported-by: Steve McIntyre <steve.mcintyre@xxxxxxx>
> > > Tested-by: Steve McIntyre <93sam@xxxxxxxxxx>
> > > Signed-off-by: Will Deacon <will.deacon@xxxxxxx>
> > > Signed-off-by: Catalin Marinas <catalin.marinas@xxxxxxx>
> > > ---
> > >
> > > Aurelien points out that this didn't get selected for -stable despite its
> > > counterpart (22839869f21a ("signal: Introduce COMPAT_SIGMINSTKSZ for use
> > > in compat_sys_sigaltstack")) being backported to 4.9. Oops.
> >
> > So this needs to go into 4.9.y, 4.14.y, and 4.19.y?
>
> Yes, please.
Thanks, will do after this next round of kernels goes out.
greg k-h
