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[rdma-next,05/10] RDMA/uverbs: Verify MR access flags

Message ID 1578506740-22188-6-git-send-email-yishaih@mellanox.com (mailing list archive)
State Mainlined
Commit ca95c1411198c2d87217c19d44571052cdc94725
Delegated to: Jason Gunthorpe
Headers show
Series Relaxed ordering memory regions | expand

Commit Message

Yishai Hadas Jan. 8, 2020, 6:05 p.m. UTC 
From: Michael Guralnik <michaelgur@mellanox.com>

Verify that MR access flags that are passed from user are all supported
ones, otherwise an error is returned.

Fixes: 4fca03778351 ("IB/uverbs: Move ib_access_flags and ib_read_coun..")
Signed-off-by: Michael Guralnik <michaelgur@mellanox.com>
Signed-off-by: Yishai Hadas <yishaih@mellanox.com>
---
 include/rdma/ib_verbs.h | 3 +++
 1 file changed, 3 insertions(+)
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Patch

diff --git a/include/rdma/ib_verbs.h b/include/rdma/ib_verbs.h
index 08cc7dc..a104e1c 100644
--- a/include/rdma/ib_verbs.h
+++ b/include/rdma/ib_verbs.h
@@ -4305,6 +4305,9 @@  static inline int ib_check_mr_access(int flags)
 	    !(flags & IB_ACCESS_LOCAL_WRITE))
 		return -EINVAL;
 
+	if (flags & ~IB_ACCESS_SUPPORTED)
+		return -EINVAL;
+
 	return 0;
 }