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-rw-r--r--kernel/ptrace.c15
1 files changed, 8 insertions, 7 deletions
diff --git a/kernel/ptrace.c b/kernel/ptrace.c
index 6c19e94fd0a5..e337390fce01 100644
--- a/kernel/ptrace.c
+++ b/kernel/ptrace.c
@@ -121,7 +121,7 @@ int ptrace_check_attach(struct task_struct *child, int kill)
return ret;
}
-int __ptrace_may_attach(struct task_struct *task)
+int __ptrace_may_access(struct task_struct *task, unsigned int mode)
{
/* May we inspect the given task?
* This check is used both for attaching with ptrace
@@ -148,16 +148,16 @@ int __ptrace_may_attach(struct task_struct *task)
if (!dumpable && !capable(CAP_SYS_PTRACE))
return -EPERM;
- return security_ptrace(current, task);
+ return security_ptrace(current, task, mode);
}
-int ptrace_may_attach(struct task_struct *task)
+bool ptrace_may_access(struct task_struct *task, unsigned int mode)
{
int err;
task_lock(task);
- err = __ptrace_may_attach(task);
+ err = __ptrace_may_access(task, mode);
task_unlock(task);
- return !err;
+ return (!err ? true : false);
}
int ptrace_attach(struct task_struct *task)
@@ -195,7 +195,7 @@ repeat:
/* the same process cannot be attached many times */
if (task->ptrace & PT_PTRACED)
goto bad;
- retval = __ptrace_may_attach(task);
+ retval = __ptrace_may_access(task, PTRACE_MODE_ATTACH);
if (retval)
goto bad;
@@ -494,7 +494,8 @@ int ptrace_traceme(void)
*/
task_lock(current);
if (!(current->ptrace & PT_PTRACED)) {
- ret = security_ptrace(current->parent, current);
+ ret = security_ptrace(current->parent, current,
+ PTRACE_MODE_ATTACH);
/*
* Set the ptrace bit in the process ptrace flags.
*/
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