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| author | Colin Ian King <colin.king@canonical.com> | 2019-09-18 11:11:56 +0100 |
|---|---|---|
| committer | Marc Kleine-Budde <mkl@pengutronix.de> | 2019-11-04 21:47:23 +0100 |
| commit | db1a804cca6fe0cea9dea888d50dda134713c340 (patch) | |
| tree | cd71ea3ee0737904a133bf93ad059cf24a5ee767 /net/can | |
| parent | b5018be6d5dd9dd257bf8236298daac8b1262750 (diff) | |
| download | linux-db1a804cca6fe0cea9dea888d50dda134713c340.tar.gz linux-db1a804cca6fe0cea9dea888d50dda134713c340.tar.bz2 linux-db1a804cca6fe0cea9dea888d50dda134713c340.zip | |
can: j1939: fix resource leak of skb on error return paths
Currently the error return paths do not free skb and this results in a
memory leak. Fix this by freeing them before the return.
Addresses-Coverity: ("Resource leak")
Fixes: 9d71dd0c7009 ("can: add support of SAE J1939 protocol")
Signed-off-by: Colin Ian King <colin.king@canonical.com>
Acked-by: Oleksij Rempel <o.rempel@pengutronix.de>
Signed-off-by: Marc Kleine-Budde <mkl@pengutronix.de>
Diffstat (limited to 'net/can')
| -rw-r--r-- | net/can/j1939/socket.c | 8 |
1 files changed, 6 insertions, 2 deletions
diff --git a/net/can/j1939/socket.c b/net/can/j1939/socket.c index 37c1040bcb9c..5c6eabcb5df1 100644 --- a/net/can/j1939/socket.c +++ b/net/can/j1939/socket.c @@ -909,8 +909,10 @@ void j1939_sk_errqueue(struct j1939_session *session, memset(serr, 0, sizeof(*serr)); switch (type) { case J1939_ERRQUEUE_ACK: - if (!(sk->sk_tsflags & SOF_TIMESTAMPING_TX_ACK)) + if (!(sk->sk_tsflags & SOF_TIMESTAMPING_TX_ACK)) { + kfree_skb(skb); return; + } serr->ee.ee_errno = ENOMSG; serr->ee.ee_origin = SO_EE_ORIGIN_TIMESTAMPING; @@ -918,8 +920,10 @@ void j1939_sk_errqueue(struct j1939_session *session, state = "ACK"; break; case J1939_ERRQUEUE_SCHED: - if (!(sk->sk_tsflags & SOF_TIMESTAMPING_TX_SCHED)) + if (!(sk->sk_tsflags & SOF_TIMESTAMPING_TX_SCHED)) { + kfree_skb(skb); return; + } serr->ee.ee_errno = ENOMSG; serr->ee.ee_origin = SO_EE_ORIGIN_TIMESTAMPING; |