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Commit 19c1ea14 authored by Yan, Zheng's avatar Yan, Zheng Committed by David S. Miller
Browse files

ipv4: Fix fib_info->fib_metrics leak 



Commit 4670994d(net,rcu: convert call_rcu(fc_rport_free_rcu) to
kfree_rcu()) introduced a memory leak. This patch reverts it.

Signed-off-by: default avatarZheng Yan <zheng.z.yan@intel.com>
Signed-off-by: default avatarDavid S. Miller <davem@davemloft.net>
parent 4fb66b82

net/ipv4/fib_semantics.c

+9 −1
Original line number Diff line number Diff line
@@ -142,6 +142,14 @@ const struct fib_prop fib_props[RTN_MAX + 1] = { 
};



/* Release a nexthop info record */

static void free_fib_info_rcu(struct rcu_head *head)

{

	struct fib_info *fi = container_of(head, struct fib_info, rcu);



	if (fi->fib_metrics != (u32 *) dst_default_metrics)

		kfree(fi->fib_metrics);

	kfree(fi);

}



void free_fib_info(struct fib_info *fi)

{
@@ -156,7 +164,7 @@ void free_fib_info(struct fib_info *fi) 
	} endfor_nexthops(fi);

	fib_info_cnt--;

	release_net(fi->fib_net);

	kfree_rcu(fi, rcu);

	call_rcu(&fi->rcu, free_fib_info_rcu);

}



void fib_release_info(struct fib_info *fi)