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Date: Fri, 22 Apr 2016 11:48:26 +0200 From: Sabrina Dubroca <sd@...asysnail.net> To: Lino Sanfilippo <lsanfil@...vell.com> Cc: netdev@...r.kernel.org, Lance Richardson <lrichard@...hat.com>, Hannes Frederic Sowa <hannes@...essinduktion.org>, Johannes Berg <johannes@...solutions.net>, Dan Carpenter <dan.carpenter@...cle.com> Subject: Re: [PATCH net v2 1/9] macsec: add missing NULL check after kmalloc 2016-04-22, 11:35:03 +0200, Lino Sanfilippo wrote: > > > On 22.04.2016 11:28, Sabrina Dubroca wrote: > > Fixes: c09440f7dcb3 ("macsec: introduce IEEE 802.1AE driver") > > Reported-by: Dan Carpenter <dan.carpenter@...cle.com> > > Signed-off-by: Sabrina Dubroca <sd@...asysnail.net> > > Acked-by: Hannes Frederic Sowa <hannes@...essinduktion.org> > > --- > > drivers/net/macsec.c | 4 ++-- > > 1 file changed, 2 insertions(+), 2 deletions(-) > > > > diff --git a/drivers/net/macsec.c b/drivers/net/macsec.c > > index 84d3e5ca8817..f691030ee3df 100644 > > --- a/drivers/net/macsec.c > > +++ b/drivers/net/macsec.c > > @@ -1622,8 +1622,8 @@ static int macsec_add_rxsa(struct sk_buff *skb, struct genl_info *info) > > } > > > > rx_sa = kmalloc(sizeof(*rx_sa), GFP_KERNEL); > > - if (init_rx_sa(rx_sa, nla_data(tb_sa[MACSEC_SA_ATTR_KEY]), secy->key_len, > > - secy->icv_len)) { > > + if (!rx_sa || init_rx_sa(rx_sa, nla_data(tb_sa[MACSEC_SA_ATTR_KEY]), > > + secy->key_len, secy->icv_len)) { > > rtnl_unlock(); > > return -ENOMEM; > > } > > > In case that kmalloc was successful and init_rx_sa failed, the allocated memory should be freed, shouldnt it?. Yep, Lance pointed that out in v1: http://marc.info/?l=linux-netdev&m=146108796406155 But since we have the same code with init_tx_sa, I decided to fix both in a separate patch (7/9 in this set). Thanks, -- Sabrina
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