diff options
| author | Roland McGrath <roland@redhat.com> | 2007-09-25 03:50:52 +0400 |
|---|---|---|
| committer | Paul Mackerras <paulus@samba.org> | 2007-10-03 05:48:43 +0400 |
| commit | fabca2c0a461bd82a35194e3a4bb1e98f3ffa789 (patch) | |
| tree | 298cc7b2c3cbfa82388b0b04c89882d6911d4a01 /arch/powerpc/kernel/ptrace.c | |
| parent | fec6047047fda307e47b9e87697144a89528c752 (diff) | |
| download | linux-fabca2c0a461bd82a35194e3a4bb1e98f3ffa789.tar.xz | |
[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>
Diffstat (limited to 'arch/powerpc/kernel/ptrace.c')
| -rw-r--r-- | arch/powerpc/kernel/ptrace.c | 4 |
1 files changed, 4 insertions, 0 deletions
diff --git a/arch/powerpc/kernel/ptrace.c b/arch/powerpc/kernel/ptrace.c index fb8866e0e35d..cf7732cdd6c7 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); |