From fabca2c0a461bd82a35194e3a4bb1e98f3ffa789 Mon Sep 17 00:00:00 2001 From: Roland McGrath Date: Tue, 25 Sep 2007 09:50:52 +1000 Subject: [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 Signed-off-by: Paul Mackerras --- arch/powerpc/kernel/ptrace.c | 4 ++++ 1 file changed, 4 insertions(+) (limited to 'arch/powerpc/kernel/ptrace.c') diff --git a/arch/powerpc/kernel/ptrace.c b/arch/powerpc/kernel/ptrace.c index fb8866e0e35..cf7732cdd6c 100644 --- a/arch/powerpc/kernel/ptrace.c +++ b/arch/powerpc/kernel/ptrace.c @@ -331,6 +331,7 @@ static long arch_ptrace_old(struct task_struct *child, long request, long addr, 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 @@ static long arch_ptrace_old(struct task_struct *child, long request, long addr, 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 @@ long arch_ptrace(struct task_struct *child, long request, long addr, long data) 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 @@ long arch_ptrace(struct task_struct *child, long request, long addr, long data) 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); -- cgit v1.2.3