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| author | Xin Long <lucien.xin@gmail.com> | 2019-06-25 00:21:45 +0800 |
|---|---|---|
| committer | Greg Kroah-Hartman <gregkh@linuxfoundation.org> | 2019-07-03 13:16:02 +0200 |
| commit | ee598530be89bfa12691d5df56ed2d9ba188f20b (patch) | |
| tree | 662e5adb81efb1c493311a22e2cb393144e0597a /net | |
| parent | 2365b9b27e00f2c24e3762df17734622fff73e96 (diff) | |
| download | linux-stable-ee598530be89bfa12691d5df56ed2d9ba188f20b.tar.gz linux-stable-ee598530be89bfa12691d5df56ed2d9ba188f20b.tar.bz2 linux-stable-ee598530be89bfa12691d5df56ed2d9ba188f20b.zip | |
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>
Diffstat (limited to 'net')
| -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 ee1e601a0b11..5d4079ef3de6 100644 --- a/net/sctp/endpointola.c +++ b/net/sctp/endpointola.c @@ -126,10 +126,6 @@ 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); @@ -167,6 +163,10 @@ 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_hmacs: |