On 2019-07-31 11:47, Greg KH wrote: > On Tue, Jul 30, 2019 at 11:42:26AM +0200, Greg KH wrote: > > 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. > > Now queued up, thanks. > Thanks! -- Aurelien Jarno GPG: 4096R/1DDD8C9B aurelien@xxxxxxxxxxx http://www.aurel32.net