kernel_wait4() expects a userland address for status - it's only
rusage that goes as a kernel one (and needs a copyout afterwards)
Fixes: "osf_wait4: switch to kernel_wait4()"
Cc: stable@xxxxxxxxxxxxxxx # v4.12+
Signed-off-by: Al Viro <viro@xxxxxxxxxxxxxxxxxx>
---
diff --git a/arch/alpha/kernel/osf_sys.c b/arch/alpha/kernel/osf_sys.c
index 6e921754c8fc..c210a25dd6da 100644
--- a/arch/alpha/kernel/osf_sys.c
+++ b/arch/alpha/kernel/osf_sys.c
@@ -1180,13 +1180,10 @@ SYSCALL_DEFINE2(osf_getrusage, int, who, struct rusage32 __user *, ru)
SYSCALL_DEFINE4(osf_wait4, pid_t, pid, int __user *, ustatus, int, options,
struct rusage32 __user *, ur)
{
- unsigned int status = 0;
struct rusage r;
- long err = kernel_wait4(pid, &status, options, &r);
+ long err = kernel_wait4(pid, ustatus, options, &r);
if (err <= 0)
return err;
- if (put_user(status, ustatus))
- return -EFAULT;
if (!ur)
return err;
if (put_tv_to_tv32(&ur->ru_utime, &r.ru_utime))
--
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