diff options
| author |   Ursula Braun <ubraun@linux.ibm.com> | 2019-11-15 12:39:30 +0100 |
|---|---|---|
| committer |   David S. Miller <davem@davemloft.net> | 2019-11-16 13:03:33 -0800 |
| commit | 8204df72bea1a7d83d0777add6da98a41dfbdc34 (patch) | |
| tree | d03e35ca966bb3310276b80a10caebb70d497ecc /net/lapb | |
| parent | rds: ib: update WR sizes when bringing up connection (diff) | |
| download | linux-dev-8204df72bea1a7d83d0777add6da98a41dfbdc34.tar.xz linux-dev-8204df72bea1a7d83d0777add6da98a41dfbdc34.zip | |
net/smc: fix fastopen for non-blocking connect()
FASTOPEN does not work with SMC-sockets. Since SMC allows fallback to
TCP native during connection start, the FASTOPEN setsockopts trigger
this fallback, if the SMC-socket is still in state SMC_INIT.
But if a FASTOPEN setsockopt is called after a non-blocking connect(),
this is broken, and fallback does not make sense.
This change complements
commit cd2063604ea6 ("net/smc: avoid fallback in case of non-blocking connect")
and fixes the syzbot reported problem "WARNING in smc_unhash_sk".
Reported-by: syzbot+8488cc4cf1c9e09b8b86@syzkaller.appspotmail.com
Fixes: e1bbdd570474 ("net/smc: reduce sock_put() for fallback sockets")
Signed-off-by: Ursula Braun <ubraun@linux.ibm.com>
Signed-off-by: Karsten Graul <kgraul@linux.ibm.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Diffstat (limited to 'net/lapb')
0 files changed, 0 insertions, 0 deletions