From: Will Deacon <will.dea...@arm.com> commit 24951465cbd279f60b1fdc2421b3694405bcff42 upstream.
arch/arm/ defines a SIGMINSTKSZ of 2k, so we should use the same value for compat tasks. Cc: Arnd Bergmann <a...@arndb.de> Cc: Dominik Brodowski <li...@dominikbrodowski.net> Cc: "Eric W. Biederman" <ebied...@xmission.com> Cc: Andrew Morton <a...@linux-foundation.org> Cc: Al Viro <v...@zeniv.linux.org.uk> Cc: Oleg Nesterov <o...@redhat.com> Reviewed-by: Dave Martin <dave.mar...@arm.com> Reported-by: Steve McIntyre <steve.mcint...@arm.com> Tested-by: Steve McIntyre <93...@debian.org> Signed-off-by: Will Deacon <will.dea...@arm.com> Signed-off-by: Catalin Marinas <catalin.mari...@arm.com> Signed-off-by: Greg Kroah-Hartman <gre...@linuxfoundation.org> --- arch/arm64/include/asm/compat.h | 1 + 1 file changed, 1 insertion(+) --- a/arch/arm64/include/asm/compat.h +++ b/arch/arm64/include/asm/compat.h @@ -234,6 +234,7 @@ static inline compat_uptr_t ptr_to_compa } #define compat_user_stack_pointer() (user_stack_pointer(task_pt_regs(current))) +#define COMPAT_MINSIGSTKSZ 2048 static inline void __user *arch_compat_alloc_user_space(long len) {