From: Sasha Levin <sashal@kernel.org>
To: linux-kernel@vger.kernel.org, stable@vger.kernel.org
Cc: Michael Guralnik <michaelgur@mellanox.com>,
Yishai Hadas <yishaih@mellanox.com>,
Jason Gunthorpe <jgg@mellanox.com>,
Sasha Levin <sashal@kernel.org>,
linux-rdma@vger.kernel.org
Subject: [PATCH AUTOSEL 4.19 183/252] RDMA/uverbs: Verify MR access flags
Date: Fri, 14 Feb 2020 11:10:38 -0500 [thread overview]
Message-ID: <20200214161147.15842-183-sashal@kernel.org> (raw)
In-Reply-To: <20200214161147.15842-1-sashal@kernel.org>
From: Michael Guralnik <michaelgur@mellanox.com>
[ Upstream commit ca95c1411198c2d87217c19d44571052cdc94725 ]
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_counters_flags to uapi")
Link: https://lore.kernel.org/r/1578506740-22188-6-git-send-email-yishaih@mellanox.com
Signed-off-by: Michael Guralnik <michaelgur@mellanox.com>
Signed-off-by: Yishai Hadas <yishaih@mellanox.com>
Signed-off-by: Jason Gunthorpe <jgg@mellanox.com>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
include/rdma/ib_verbs.h | 3 +++
1 file changed, 3 insertions(+)
diff --git a/include/rdma/ib_verbs.h b/include/rdma/ib_verbs.h
index 54e4d1fd21f8f..874cd6e94093b 100644
--- a/include/rdma/ib_verbs.h
+++ b/include/rdma/ib_verbs.h
@@ -3864,6 +3864,9 @@ 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;
}
--
2.20.1
next prev parent reply other threads:[~2020-02-14 17:04 UTC|newest]
Thread overview: 8+ messages / expand[flat|nested] mbox.gz Atom feed top
[not found] <20200214161147.15842-1-sashal@kernel.org>
2020-02-14 16:07 ` [PATCH AUTOSEL 4.19 016/252] RDMA/netlink: Do not always generate an ACK for some netlink operations Sasha Levin
2020-02-14 16:09 ` [PATCH AUTOSEL 4.19 126/252] RDMA/rxe: Fix error type of mmap_offset Sasha Levin
2020-02-14 16:09 ` [PATCH AUTOSEL 4.19 134/252] mlx5: work around high stack usage with gcc Sasha Levin
2020-02-14 16:10 ` [PATCH AUTOSEL 4.19 145/252] RDMA/core: Fix locking in ib_uverbs_event_read Sasha Levin
2020-02-14 16:10 ` [PATCH AUTOSEL 4.19 146/252] IB/hfi1: Add software counter for ctxt0 seq drop Sasha Levin
2020-02-14 16:10 ` [PATCH AUTOSEL 4.19 157/252] RDMA/uverbs: Remove needs_kfree_rcu from uverbs_obj_type_class Sasha Levin
2020-02-14 16:10 ` Sasha Levin [this message]
2020-02-14 16:10 ` [PATCH AUTOSEL 4.19 184/252] IB/mlx4: Fix memory leak in add_gid error flow Sasha Levin
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