Patch "osf_wait4(): fix infoleak" has been added to the 4.9-stable tree

This is a note to let you know that I've just added the patch titled

osf_wait4(): fix infoleak

to the 4.9-stable tree which can be found at:
http://www.kernel.org/git/?p=linux/kernel/git/stable/stable-queue.git;a=summary

The filename of the patch is:
osf_wait4-fix-infoleak.patch
and it can be found in the queue-4.9 subdirectory.

If you, or anyone else, feels it should not be added to the stable tree, please let <[email protected]> know about it.

From: Al Viro <[email protected]>
Date: Sun, 14 May 2017 21:47:25 -0400
Subject: osf_wait4(): fix infoleak

From: Al Viro <[email protected]>

commit a8c39544a6eb2093c04afd5005b6192bd0e880c6 upstream.

failing sys_wait4() won't fill struct rusage...

---
 arch/alpha/kernel/osf_sys.c |    6 ++++--
 1 file changed, 4 insertions(+), 2 deletions(-)

@@ -1188,8 +1188,10 @@ SYSCALL_DEFINE4(osf_wait4, pid_t, pid, i
 	if (!access_ok(VERIFY_WRITE, ur, sizeof(*ur)))
 		return -EFAULT;
 
-	err = 0;
-	err |= put_user(status, ustatus);
+	err = put_user(status, ustatus);
+	if (ret < 0)
+		return err ? err : ret;
+
 	err |= __put_user(r.ru_utime.tv_sec, &ur->ru_utime.tv_sec);
 	err |= __put_user(r.ru_utime.tv_usec, &ur->ru_utime.tv_usec);
 	err |= __put_user(r.ru_stime.tv_sec, &ur->ru_stime.tv_sec);

Patches currently in stable-queue which might be from [email protected] are

queue-4.9/metag-uaccess-check-access_ok-in-strncpy_from_user.patch queue-4.9/osf_wait4-fix-infoleak.patch queue-4.9/x86-fix-32-bit-case-of-__get_user_asm_u64.patch queue-4.9/metag-uaccess-fix-access_ok.patch