diff options
| author | Oliver Hartkopp <socketcan@hartkopp.net> | 2015-02-23 20:37:54 +0100 |
|---|---|---|
| committer | Greg Kroah-Hartman <gregkh@linuxfoundation.org> | 2015-03-26 15:00:58 +0100 |
| commit | 82fb39a22b8d0b612d4a4bf922af97e9d981bdee (patch) | |
| tree | b3d7045bf5bdb578d9b584c6e2850dbaf20c5df4 /net/can | |
| parent | 8706baf7a6dbc625ba7399c531bb2579b80793ad (diff) | |
| download | lwn-82fb39a22b8d0b612d4a4bf922af97e9d981bdee.tar.gz lwn-82fb39a22b8d0b612d4a4bf922af97e9d981bdee.zip | |
can: add missing initialisations in CAN related skbuffs
commit 969439016d2cf61fef53a973d7e6d2061c3793b1 upstream.
When accessing CAN network interfaces with AF_PACKET sockets e.g. by dhclient
this can lead to a skb_under_panic due to missing skb initialisations.
Add the missing initialisations at the CAN skbuff creation times on driver
level (rx path) and in the network layer (tx path).
Reported-by: Austin Schuh <austin@peloton-tech.com>
Reported-by: Daniel Steer <daniel.steer@mclaren.com>
Signed-off-by: Oliver Hartkopp <socketcan@hartkopp.net>
Signed-off-by: Marc Kleine-Budde <mkl@pengutronix.de>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Diffstat (limited to 'net/can')
| -rw-r--r-- | net/can/af_can.c | 3 |
1 files changed, 3 insertions, 0 deletions
diff --git a/net/can/af_can.c b/net/can/af_can.c index f59859a3f562..d3668c55b088 100644 --- a/net/can/af_can.c +++ b/net/can/af_can.c @@ -262,6 +262,9 @@ int can_send(struct sk_buff *skb, int loop) goto inval_skb; } + skb->ip_summed = CHECKSUM_UNNECESSARY; + + skb_reset_mac_header(skb); skb_reset_network_header(skb); skb_reset_transport_header(skb); |