[PATCH 3.2 24/52] can: Use correct type in sizeof() in nla_put()

From: Ben Hutchings
Date: Tue Nov 24 2015 - 17:46:34 EST


3.2.74-rc1 review patch. If anyone has any objections, please let me know.

------------------

From: Marek Vasut <marex@xxxxxxx>

commit 562b103a21974c2f9cd67514d110f918bb3e1796 upstream.

The sizeof() is invoked on an incorrect variable, likely due to some
copy-paste error, and this might result in memory corruption. Fix this.

Signed-off-by: Marek Vasut <marex@xxxxxxx>
Cc: Wolfgang Grandegger <wg@xxxxxxxxxxxxxx>
Cc: netdev@xxxxxxxxxxxxxxx
Signed-off-by: Marc Kleine-Budde <mkl@xxxxxxxxxxxxxx>
[bwh: Backported to 3.2:
- Keep using the old NLA_PUT macro
- Adjust context]
Signed-off-by: Ben Hutchings <ben@xxxxxxxxxxxxxxx>
---
drivers/net/can/dev.c | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)

--- a/drivers/net/can/dev.c
+++ b/drivers/net/can/dev.c
@@ -693,7 +693,7 @@ static int can_fill_info(struct sk_buff
NLA_PUT_U32(skb, IFLA_CAN_RESTART_MS, priv->restart_ms);
NLA_PUT(skb, IFLA_CAN_BITTIMING,
sizeof(priv->bittiming), &priv->bittiming);
- NLA_PUT(skb, IFLA_CAN_CLOCK, sizeof(cm), &priv->clock);
+ NLA_PUT(skb, IFLA_CAN_CLOCK, sizeof(priv->clock), &priv->clock);
if (priv->do_get_berr_counter && !priv->do_get_berr_counter(dev, &bec))
NLA_PUT(skb, IFLA_CAN_BERR_COUNTER, sizeof(bec), &bec);
if (priv->bittiming_const)

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