netdev - [PATCH] irda: irttp: fix memory leak in irttp_open

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Message-Id: <1353939404-19264-1-git-send-email-tt.rantala@gmail.com>
Date:	Mon, 26 Nov 2012 16:16:44 +0200
From:	Tommi Rantala <tt.rantala@...il.com>
To:	netdev@...r.kernel.org
Cc:	Samuel Ortiz <samuel@...tiz.org>,
	"David S. Miller" <davem@...emloft.net>,
	Dave Jones <davej@...hat.com>,
	Tommi Rantala <tt.rantala@...il.com>
Subject: [PATCH] irda: irttp: fix memory leak in irttp_open_tsap() error path

Cleanup the memory we allocated earlier in irttp_open_tsap() when we hit
this error path. The leak goes back to at least 1da177e4
("Linux-2.6.12-rc2").

Discovered with Trinity (the syscall fuzzer).

Signed-off-by: Tommi Rantala <tt.rantala@...il.com>
---
 net/irda/irttp.c |    1 +
 1 file changed, 1 insertion(+)

diff --git a/net/irda/irttp.c b/net/irda/irttp.c
index 1002e33..ae43c62 100644
--- a/net/irda/irttp.c
+++ b/net/irda/irttp.c
@@ -441,6 +441,7 @@ struct tsap_cb *irttp_open_tsap(__u8 stsap_sel, int credit, notify_t *notify)
 	lsap = irlmp_open_lsap(stsap_sel, &ttp_notify, 0);
 	if (lsap == NULL) {
 		IRDA_DEBUG(0, "%s: unable to allocate LSAP!!\n", __func__);
+		__irttp_close_tsap(self);
 		return NULL;
 	}
 
-- 
1.7.9.5

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