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| author | Xin Long <lucien.xin@gmail.com> | 2019-06-24 19:21:45 +0300 |
|---|---|---|
| committer | Greg Kroah-Hartman <gregkh@linuxfoundation.org> | 2019-07-03 14:13:41 +0300 |
| commit | 6c616a135a6d9b8ff2f5aa65b6c0999530228058 (patch) | |
| tree | 19225d4b65443ba269d10a501362d743a63cbeca | |
| parent | 0962d139f22a4e889e686b86806767b99eda8086 (diff) | |
| download | linux-6c616a135a6d9b8ff2f5aa65b6c0999530228058.tar.xz | |
sctp: change to hold sk after auth shkey is created successfully
[ Upstream commit 25bff6d5478b2a02368097015b7d8eb727c87e16 ]
Now in sctp_endpoint_init(), it holds the sk then creates auth
shkey. But when the creation fails, it doesn't release the sk,
which causes a sk defcnf leak,
Here to fix it by only holding the sk when auth shkey is created
successfully.
Fixes: a29a5bd4f5c3 ("[SCTP]: Implement SCTP-AUTH initializations.")
Reported-by: syzbot+afabda3890cc2f765041@syzkaller.appspotmail.com
Reported-by: syzbot+276ca1c77a19977c0130@syzkaller.appspotmail.com
Signed-off-by: Xin Long <lucien.xin@gmail.com>
Acked-by: Neil Horman <nhorman@redhat.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
| -rw-r--r-- | net/sctp/endpointola.c | 8 |
1 files changed, 4 insertions, 4 deletions
diff --git a/net/sctp/endpointola.c b/net/sctp/endpointola.c index 0448b68fce74..bcfc81ee153d 100644 --- a/net/sctp/endpointola.c +++ b/net/sctp/endpointola.c @@ -133,10 +133,6 @@ static struct sctp_endpoint *sctp_endpoint_init(struct sctp_endpoint *ep, /* Initialize the bind addr area */ sctp_bind_addr_init(&ep->base.bind_addr, 0); - /* Remember who we are attached to. */ - ep->base.sk = sk; - sock_hold(ep->base.sk); - /* Create the lists of associations. */ INIT_LIST_HEAD(&ep->asocs); @@ -169,6 +165,10 @@ static struct sctp_endpoint *sctp_endpoint_init(struct sctp_endpoint *ep, ep->prsctp_enable = net->sctp.prsctp_enable; ep->reconf_enable = net->sctp.reconf_enable; + /* Remember who we are attached to. */ + ep->base.sk = sk; + sock_hold(ep->base.sk); + return ep; nomem_shkey: |