if ((0x5454 >> ((val >> (16 + 4*i)) & 0xf)) & 1)
return -EIO;
child->thread.debugreg7 = val;
+ if (val)
+ set_tsk_thread_flag(child, TIF_DEBUG);
+ else
+ clear_tsk_thread_flag(child, TIF_DEBUG);
break;
default:
{
int ret;
compat_siginfo_t *si32 = (compat_siginfo_t *)compat_ptr(data);
+ siginfo_t ssi;
siginfo_t *si = compat_alloc_user_space(sizeof(siginfo_t));
if (request == PTRACE_SETSIGINFO) {
- ret = copy_siginfo_from_user32(si, si32);
+ memset(&ssi, 0, sizeof(siginfo_t));
+ ret = copy_siginfo_from_user32(&ssi, si32);
if (ret)
return ret;
+ if (copy_to_user(si, &ssi, sizeof(siginfo_t)))
+ return -EFAULT;
}
ret = sys_ptrace(request, pid, addr, (unsigned long)si);
if (ret)
return ret;
- if (request == PTRACE_GETSIGINFO)
- ret = copy_siginfo_to_user32(si32, si);
+ if (request == PTRACE_GETSIGINFO) {
+ if (copy_from_user(&ssi, si, sizeof(siginfo_t)))
+ return -EFAULT;
+ ret = copy_siginfo_to_user32(si32, &ssi);
+ }
return ret;
}
ret = -EIO;
if (!access_ok(VERIFY_READ, u, sizeof(*u)))
break;
- /* no checking to be bug-to-bug compatible with i386 */
- __copy_from_user(&child->thread.i387.fxsave, u, sizeof(*u));
+ /* no checking to be bug-to-bug compatible with i386. */
+ /* but silence warning */
+ if (__copy_from_user(&child->thread.i387.fxsave, u, sizeof(*u)))
+ ;
set_stopped_child_used_math(child);
child->thread.i387.fxsave.mxcsr &= mxcsr_feature_mask;
ret = 0;