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authorEric Dumazet <eric.dumazet@gmail.com>2010-03-25 13:00:22 +0300
committerPatrick McHardy <kaber@trash.net>2010-03-25 13:00:22 +0300
commit55e0d7cf279177dfe320f54816320558bc370f24 (patch)
tree6f8c896e95c4a315409fb8053f2ca075b8b72962 /net
parentef1691504c83ba3eb636c0cfd3ed33f7a6d0b4ee (diff)
downloadlinux-55e0d7cf279177dfe320f54816320558bc370f24.tar.xz
netfilter: xt_hashlimit: dl_seq_stop() fix
If dl_seq_start() memory allocation fails, we crash later in dl_seq_stop(), trying to kfree(ERR_PTR(-ENOMEM)) Signed-off-by: Eric Dumazet <eric.dumazet@gmail.com> Signed-off-by: Patrick McHardy <kaber@trash.net>
Diffstat (limited to 'net')
-rw-r--r--net/netfilter/xt_hashlimit.c3
1 files changed, 2 insertions, 1 deletions
diff --git a/net/netfilter/xt_hashlimit.c b/net/netfilter/xt_hashlimit.c
index 9e9c48963942..70d561a2d9e0 100644
--- a/net/netfilter/xt_hashlimit.c
+++ b/net/netfilter/xt_hashlimit.c
@@ -879,7 +879,8 @@ static void dl_seq_stop(struct seq_file *s, void *v)
struct xt_hashlimit_htable *htable = s->private;
unsigned int *bucket = (unsigned int *)v;
- kfree(bucket);
+ if (!IS_ERR(bucket))
+ kfree(bucket);
spin_unlock_bh(&htable->lock);
}