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?
thanks,
greg k-h
