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| author | Yan, Zheng <zheng.z.yan@intel.com> | 2011-09-04 22:24:20 +0200 |
|---|---|---|
| committer | David S. Miller <davem@davemloft.net> | 2011-09-16 23:42:26 +0200 |
| commit | 19c1ea14c930db5e9c0cd7c3c6f4d01457dfcd69 (patch) | |
| tree | 3dd32223f9e38e94441029d2d437f53044a74862 | |
| parent | caif: fix a potential NULL dereference (diff) | |
| download | linux-19c1ea14c930db5e9c0cd7c3c6f4d01457dfcd69.tar.xz linux-19c1ea14c930db5e9c0cd7c3c6f4d01457dfcd69.zip | |
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: Zheng Yan <zheng.z.yan@intel.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
| -rw-r--r-- | net/ipv4/fib_semantics.c | 10 |
1 files changed, 9 insertions, 1 deletions
diff --git a/net/ipv4/fib_semantics.c b/net/ipv4/fib_semantics.c index 33e2c35b74b7..80106d89d548 100644 --- a/net/ipv4/fib_semantics.c +++ b/net/ipv4/fib_semantics.c @@ -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) |