static int ptrace_has_cap(struct user_namespace *ns, unsigned int mode)
{
+ if (mode & PTRACE_MODE_SCHED)
+ return false;
+
if (mode & PTRACE_MODE_NOAUDIT)
return has_ns_capability_noaudit(current, ns, CAP_SYS_PTRACE);
else
!ptrace_has_cap(mm->user_ns, mode)))
return -EPERM;
+ if (mode & PTRACE_MODE_SCHED)
+ return 0;
return security_ptrace_access_check(task, mode);
}
+bool ptrace_may_access_sched(struct task_struct *task, unsigned int mode)
+{
+ return __ptrace_may_access(task, mode | PTRACE_MODE_SCHED);
+}
+
bool ptrace_may_access(struct task_struct *task, unsigned int mode)
{
int err;
/* SEIZE doesn't trap tracee on attach */
if (!seize)
- send_sig_info(SIGSTOP, SEND_SIG_FORCED, task);
+ send_sig_info(SIGSTOP, SEND_SIG_PRIV, task);
spin_lock(&task->sighand->siglock);
list_for_each_entry_safe(p, n, &tracer->ptraced, ptrace_entry) {
if (unlikely(p->ptrace & PT_EXITKILL))
- send_sig_info(SIGKILL, SEND_SIG_FORCED, p);
+ send_sig_info(SIGKILL, SEND_SIG_PRIV, p);
if (__ptrace_detach(tracer, p))
list_add(&p->ptrace_entry, dead);
return 0;
}
-static int ptrace_getsiginfo(struct task_struct *child, siginfo_t *info)
+static int ptrace_getsiginfo(struct task_struct *child, kernel_siginfo_t *info)
{
unsigned long flags;
int error = -ESRCH;
return error;
}
-static int ptrace_setsiginfo(struct task_struct *child, const siginfo_t *info)
+static int ptrace_setsiginfo(struct task_struct *child, const kernel_siginfo_t *info)
{
unsigned long flags;
int error = -ESRCH;
pending = &child->pending;
for (i = 0; i < arg.nr; ) {
- siginfo_t info;
+ kernel_siginfo_t info;
s32 off = arg.off + i;
spin_lock_irq(&child->sighand->siglock);
{
bool seized = child->ptrace & PT_SEIZED;
int ret = -EIO;
- siginfo_t siginfo, *si;
+ kernel_siginfo_t siginfo, *si;
void __user *datavp = (void __user *) data;
unsigned long __user *datalp = datavp;
unsigned long flags;
break;
case PTRACE_SETSIGINFO:
- if (copy_from_user(&siginfo, datavp, sizeof siginfo))
- ret = -EFAULT;
- else
+ ret = copy_siginfo_from_user(&siginfo, datavp);
+ if (!ret)
ret = ptrace_setsiginfo(child, &siginfo);
break;
{
compat_ulong_t __user *datap = compat_ptr(data);
compat_ulong_t word;
- siginfo_t siginfo;
+ kernel_siginfo_t siginfo;
int ret;
switch (request) {
break;
case PTRACE_SETSIGINFO:
- if (copy_siginfo_from_user32(
- &siginfo, (struct compat_siginfo __user *) datap))
- ret = -EFAULT;
- else
+ ret = copy_siginfo_from_user32(
+ &siginfo, (struct compat_siginfo __user *) datap);
+ if (!ret)
ret = ptrace_setsiginfo(child, &siginfo);
break;
#ifdef CONFIG_HAVE_ARCH_TRACEHOOK