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authorCong Wang <[email protected]>2020-10-07 23:18:21 -0700
committerMarc Kleine-Budde <[email protected]>2020-10-08 23:21:46 +0200
commite009f95b1543e26606dca2f7e6e9f0f9174538e5 (patch)
tree6c427a11a6cadf98b6546d58f9f62ef67345adea
parent81f1f5ae8b3cbd54fdd994c9e9aacdb7b414a802 (diff)
can: j1935: j1939_tp_tx_dat_new(): fix missing initialization of skbcnt
This fixes an uninit-value warning: BUG: KMSAN: uninit-value in can_receive+0x26b/0x630 net/can/af_can.c:650 Reported-and-tested-by: [email protected] Fixes: 9d71dd0c7009 ("can: add support of SAE J1939 protocol") Cc: Robin van der Gracht <[email protected]> Cc: Oleksij Rempel <[email protected]> Cc: Pengutronix Kernel Team <[email protected]> Cc: Oliver Hartkopp <[email protected]> Cc: Marc Kleine-Budde <[email protected]> Signed-off-by: Cong Wang <[email protected]> Link: https://lore.kernel.org/r/[email protected] Signed-off-by: Marc Kleine-Budde <[email protected]>
-rw-r--r--net/can/j1939/transport.c1
1 files changed, 1 insertions, 0 deletions
diff --git a/net/can/j1939/transport.c b/net/can/j1939/transport.c
index 0cec4152f979..88cf1062e1e9 100644
--- a/net/can/j1939/transport.c
+++ b/net/can/j1939/transport.c
@@ -580,6 +580,7 @@ sk_buff *j1939_tp_tx_dat_new(struct j1939_priv *priv,
skb->dev = priv->ndev;
can_skb_reserve(skb);
can_skb_prv(skb)->ifindex = priv->ndev->ifindex;
+ can_skb_prv(skb)->skbcnt = 0;
/* reserve CAN header */
skb_reserve(skb, offsetof(struct can_frame, data));