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RDMA/uverbs: Verify MR access flags 

commit ca95c14111 upstream.

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

Fixes: 4fca037783 ("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: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
5.4-rM2-2.2.x-imx-squashed
Michael Guralnik 2020-01-08 20:05:35 +02:00 committed by Greg Kroah-Hartman
parent 7892367515
commit b73401025a
1 changed files with 3 additions and 0 deletions
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3
include/rdma/ib_verbs.h
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@ -4252,6 +4252,9 @@ 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;
}