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authorDave Airlie <airlied@redhat.com>2014-03-18 19:12:31 +1000
committerDave Airlie <airlied@redhat.com>2014-03-18 19:12:31 +1000
commitbcc298bc924e0a990f853ba3e19f8b5a833cba7e (patch)
tree1c87c8f73dc41fd11ee3dacb1b91a7cc8b4798bb /ipc/msg.c
parent978c6050165bba52eab7ef3581d447eb215def77 (diff)
parentdcb99fd9b08cfe1afe426af4d8d3cbc429190f15 (diff)
Merge tag 'v3.14-rc7' into drm-next
Linux 3.14-rc7 Backmerge to help out Intel guys.
Diffstat (limited to 'ipc/msg.c')
-rw-r--r--ipc/msg.c2
1 files changed, 2 insertions, 0 deletions
diff --git a/ipc/msg.c b/ipc/msg.c
index 245db1140ad..649853105a5 100644
--- a/ipc/msg.c
+++ b/ipc/msg.c
@@ -901,6 +901,8 @@ long do_msgrcv(int msqid, void __user *buf, size_t bufsz, long msgtyp, int msgfl
return -EINVAL;
if (msgflg & MSG_COPY) {
+ if ((msgflg & MSG_EXCEPT) || !(msgflg & IPC_NOWAIT))
+ return -EINVAL;
copy = prepare_copy(buf, min_t(size_t, bufsz, ns->msg_ctlmax));
if (IS_ERR(copy))
return PTR_ERR(copy);