[POWERPC] Add CHECK_FULL_REGS in several places in ptrace code
This restores the CHECK_FULL_REGS sanity check to every place that can
access the nonvolatile GPRs for ptrace. This is already done for
native-bitwidth PTRACE_PEEKUSR, but was omitted for many other cases
(32-bit ptrace, PTRACE_GETREGS, etc.); I think there may have been more
uniform checks before that were lost in the recent cleanup of GETREGS et al.
Signed-off-by: Roland McGrath <roland@redhat.com>
Signed-off-by: Paul Mackerras <paulus@samba.org>
diff --git a/arch/powerpc/kernel/ptrace.c b/arch/powerpc/kernel/ptrace.c
index fb8866e..cf7732c 100644
--- a/arch/powerpc/kernel/ptrace.c
+++ b/arch/powerpc/kernel/ptrace.c
@@ -331,6 +331,7 @@
unsigned long *reg = &((unsigned long *)child->thread.regs)[0];
unsigned long __user *tmp = (unsigned long __user *)addr;
+ CHECK_FULL_REGS(child->thread.regs);
for (i = 0; i < 32; i++) {
ret = put_user(*reg, tmp);
if (ret)
@@ -346,6 +347,7 @@
unsigned long *reg = &((unsigned long *)child->thread.regs)[0];
unsigned long __user *tmp = (unsigned long __user *)addr;
+ CHECK_FULL_REGS(child->thread.regs);
for (i = 0; i < 32; i++) {
ret = get_user(*reg, tmp);
if (ret)
@@ -517,6 +519,7 @@
ret = -EIO;
break;
}
+ CHECK_FULL_REGS(child->thread.regs);
ret = 0;
for (ui = 0; ui < PT_REGS_COUNT; ui ++) {
ret |= __put_user(ptrace_get_reg(child, ui),
@@ -537,6 +540,7 @@
ret = -EIO;
break;
}
+ CHECK_FULL_REGS(child->thread.regs);
ret = 0;
for (ui = 0; ui < PT_REGS_COUNT; ui ++) {
ret = __get_user(tmp, (unsigned long __user *) data);