• Ursula Braun's avatar
    net/smc: reduce sock_put() for fallback sockets · e1bbdd57
    Ursula Braun authored
    smc_release() calls a sock_put() for smc fallback sockets to cover
    the passive closing sock_hold() in __smc_connect() and
    smc_tcp_listen_work(). This does not make sense for sockets in state
    SMC_LISTEN and SMC_INIT.
    An SMC socket stays in state SMC_INIT if connect fails. The sock_put
    in smc_connect_abort() does not cover all failures. Move it into
    smc_connect_decline_fallback().
    
    Fixes: ee9dfbef
    
     ("net/smc: handle sockopts forcing fallback")
    Reported-by: syzbot+3a0748c8f2f210c0ef9b@syzkaller.appspotmail.com
    Reported-by: syzbot+9e60d2428a42049a592a@syzkaller.appspotmail.com
    Signed-off-by: default avatarUrsula Braun <ubraun@linux.ibm.com>
    Signed-off-by: default avatarDavid S. Miller <davem@davemloft.net>
    e1bbdd57