Since commit 1706d58763c36133d7fce6cc78b1444fd40db28c ip_frag_reasm()
can return the value of an uninitialized variable:
<-- snip -->
...
static int ip_frag_reasm(struct ipq *qp, struct sk_buff *prev,
struct net_device *dev)
{
struct iphdr *iph;
struct sk_buff *fp, *head = qp->q.fragments;
int len;
int ihlen;
int err;
ipq_kill(qp);
/* Make the one we just received the head. */
if (prev) {
head = prev->next;
fp = skb_clone(head, GFP_ATOMIC);
if (!fp)
goto out_nomem;
...
out_nomem:
LIMIT_NETDEBUG(KERN_ERR "IP: queue_glue: no memory for gluing "
"queue %p\n", qp);
goto out_fail;
...
out_fail:
IP_INC_STATS_BH(IPSTATS_MIB_REASMFAILS);
return err;
}
...
<-- snip -->
Spotted by the Coverity checker.
cu
Adrian
--
"Is there not promise of rain?" Ling Tan asked suddenly out
of the darkness. There had been need of rain for many days.
"Only a promise," Lao Er said.
Pearl S. Buck - Dragon Seed
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