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net/handshake: Fix handshake_dup() ref counting
authorChuck Lever <chuck.lever@oracle.com>
Thu, 11 May 2023 15:47:40 +0000 (11:47 -0400)
committerDavid S. Miller <davem@davemloft.net>
Fri, 12 May 2023 08:24:07 +0000 (09:24 +0100)
commit2200c1a87074548f0a36e5aae5ad283ce2ac43b2
tree0bd3c03102f7d4d2552cb8206ff37a6eb7fc2c49
parentb16d76fe9a27d337c16972a71d959bcf0c96c2e6
net/handshake: Fix handshake_dup() ref counting

If get_unused_fd_flags() fails, we ended up calling fput(sock->file)
twice.

Reported-by: Dan Carpenter <dan.carpenter@linaro.org>
Suggested-by: Paolo Abeni <pabeni@redhat.com>
Fixes: 3b3009ea8abb ("net/handshake: Create a NETLINK service for handling handshake requests")
Signed-off-by: Chuck Lever <chuck.lever@oracle.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
net/handshake/netlink.c