path: root/drivers
diff options
authorArkadi Sharshevsky <arkadis@mellanox.com>2017-01-12 09:10:37 +0100
committerGreg Kroah-Hartman <gregkh@linuxfoundation.org>2017-02-04 09:45:08 +0100
commit9edb2d75d81be37a79d0fa84b0a7d5c5f4880b89 (patch)
treefcfa2eed4e37ef60a82966c4dd979573ab0451ba /drivers
parent595ac452c451b1d00dfe174011dea8b5bf65d8b0 (diff)
mlxsw: spectrum: Fix memory leak at skb reallocation
[ Upstream commit 36bf38d158d3482119b3e159c0619b3c1539b508 ] During transmission the skb is checked for headroom in order to add vendor specific header. In case the skb needs to be re-allocated, skb_realloc_headroom() is called to make a private copy of the original, but doesn't release it. Current code assumes that the original skb is released during reallocation and only releases it at the error path which causes a memory leak. Fix this by adding the original skb release to the main path. Fixes: 56ade8fe3fe1 ("mlxsw: spectrum: Add initial support for Spectrum ASIC") Signed-off-by: Arkadi Sharshevsky <arkadis@mellanox.com> Reviewed-by: Ido Schimmel <idosch@mellanox.com> Signed-off-by: Jiri Pirko <jiri@mellanox.com> Signed-off-by: David S. Miller <davem@davemloft.net> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Diffstat (limited to 'drivers')
1 files changed, 1 insertions, 0 deletions
diff --git a/drivers/net/ethernet/mellanox/mlxsw/spectrum.c b/drivers/net/ethernet/mellanox/mlxsw/spectrum.c
index 3be4a2355ead..cb165c2d4803 100644
--- a/drivers/net/ethernet/mellanox/mlxsw/spectrum.c
+++ b/drivers/net/ethernet/mellanox/mlxsw/spectrum.c
@@ -390,6 +390,7 @@ static netdev_tx_t mlxsw_sp_port_xmit(struct sk_buff *skb,
return NETDEV_TX_OK;
+ dev_consume_skb_any(skb_orig);
if (eth_skb_pad(skb)) {