arm64: sanitize copy_thread(), switch to generic fork/vfork/clone
Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
diff --git a/arch/arm64/include/asm/syscalls.h b/arch/arm64/include/asm/syscalls.h
index a1b00cd..010ec12 100644
--- a/arch/arm64/include/asm/syscalls.h
+++ b/arch/arm64/include/asm/syscalls.h
@@ -31,6 +31,8 @@
* AArch64 sys_clone implementation has a different prototype than the generic
* one (additional TLS value argument).
*/
+asmlinkage long sys_clone(unsigned long, unsigned long, void __user *, int,
+ void __user *);
#define sys_clone sys_clone
#include <asm-generic/syscalls.h>
diff --git a/arch/arm64/include/asm/unistd.h b/arch/arm64/include/asm/unistd.h
index 43064a8..d69aeea 100644
--- a/arch/arm64/include/asm/unistd.h
+++ b/arch/arm64/include/asm/unistd.h
@@ -24,6 +24,9 @@
#define __ARCH_WANT_SYS_SIGPROCMASK
#define __ARCH_WANT_COMPAT_SYS_RT_SIGSUSPEND
#define __ARCH_WANT_COMPAT_SYS_SENDFILE
+#define __ARCH_WANT_SYS_FORK
+#define __ARCH_WANT_SYS_VFORK
#endif
#define __ARCH_WANT_SYS_EXECVE
+#define __ARCH_WANT_SYS_CLONE
#include <uapi/asm/unistd.h>
diff --git a/arch/arm64/include/asm/unistd32.h b/arch/arm64/include/asm/unistd32.h
index d9850cf..30127cb 100644
--- a/arch/arm64/include/asm/unistd32.h
+++ b/arch/arm64/include/asm/unistd32.h
@@ -23,7 +23,7 @@
__SYSCALL(0, sys_restart_syscall)
__SYSCALL(1, sys_exit)
-__SYSCALL(2, compat_sys_fork)
+__SYSCALL(2, sys_fork)
__SYSCALL(3, sys_read)
__SYSCALL(4, sys_write)
__SYSCALL(5, compat_sys_open)
@@ -211,7 +211,7 @@
__SYSCALL(187, compat_sys_sendfile)
__SYSCALL(188, sys_ni_syscall) /* 188 reserved */
__SYSCALL(189, sys_ni_syscall) /* 189 reserved */
-__SYSCALL(190, compat_sys_vfork)
+__SYSCALL(190, sys_vfork)
__SYSCALL(191, compat_sys_getrlimit) /* SuS compliant getrlimit */
__SYSCALL(192, sys_mmap_pgoff)
__SYSCALL(193, compat_sys_truncate64_wrapper)