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Subject[PATCH v3 3/3] udmabuf: check that flags has no unsupported bits set
Date
Signed-off-by: Gerd Hoffmann <kraxel@redhat.com>
Reported-by: Yann Droneaud <ydroneaud@opteya.com>
---
drivers/dma-buf/udmabuf.c | 3 +++
1 file changed, 3 insertions(+)

diff --git a/drivers/dma-buf/udmabuf.c b/drivers/dma-buf/udmabuf.c
index 964beadd11..acd97670c5 100644
--- a/drivers/dma-buf/udmabuf.c
+++ b/drivers/dma-buf/udmabuf.c
@@ -128,6 +128,9 @@ static long udmabuf_create(const struct udmabuf_create_list *head,
int seals, ret = -EINVAL;
u32 i, flags;

+ if (head->flags & ~UDMABUF_FLAGS_CLOEXEC)
+ return -EINVAL;
+
ubuf = kzalloc(sizeof(*ubuf), GFP_KERNEL);
if (!ubuf)
return -ENOMEM;
--
2.9.3
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