net/smc: return 0 for ioctl calls in states INIT and CLOSED

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A connected SMC-socket contains addresses of descriptors for the
send buffer and the rmb (receive buffer). Fields of these descriptors
are used to determine the answer for certain ioctl requests.
Add extra handling for unconnected SMC socket states without valid
buffer descriptor addresses.

Signed-off-by: Ursula Braun <ubraun@linux.ibm.com>
Reported-by: syzbot+e6714328fda813fc670f@syzkaller.appspotmail.com
Signed-off-by: David S. Miller <davem@davemloft.net>

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Ursula Braun 2018-05-23 16:38:09 +02:00 • committed by David S. Miller

parent 8156b0ba74

commit 2351abe6f8

1 changed files with 15 additions and 3 deletions

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net/smc/af_smc.c

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