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| author | Jesper Juhl <jj@chaosbits.net> | 2012-01-14 21:52:17 +0100 |
|---|---|---|
| committer | John W. Linville <linville@tuxdriver.com> | 2012-01-16 15:01:15 -0500 |
| commit | 74b8cc3d592e5e884123eb99960a9f064223eaab (patch) | |
| tree | 293597e27723e538e60d5fa734de152070b9e136 | |
| parent | 7a532fe7131216a02c81a6c1b1f8632da1195a58 (diff) | |
| download | linux-74b8cc3d592e5e884123eb99960a9f064223eaab.tar.gz linux-74b8cc3d592e5e884123eb99960a9f064223eaab.tar.bz2 linux-74b8cc3d592e5e884123eb99960a9f064223eaab.zip | |
Net, mac80211: Fix resource leak in ieee80211_rx_h_mesh_fwding()
We may leak the 'fwd_skb' we skb_copy() in ieee80211_rx_h_mesh_fwding() if
we take the 'else' branch in the 'if' statement just below. If we take
that branch we'll end up returning from the function and since we've not
assigned 'fwd_skb' to anything at that point, we leak it when the variable
goes out of scope.
The simple fix seems to be to just kfree_skb(fwd_skb); just before we
return. That is what this patch does.
Signed-off-by: Jesper Juhl <jj@chaosbits.net>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
| -rw-r--r-- | net/mac80211/rx.c | 1 |
1 files changed, 1 insertions, 0 deletions
diff --git a/net/mac80211/rx.c b/net/mac80211/rx.c index f407427c642f..751409120769 100644 --- a/net/mac80211/rx.c +++ b/net/mac80211/rx.c @@ -1979,6 +1979,7 @@ ieee80211_rx_h_mesh_fwding(struct ieee80211_rx_data *rx) mesh_path_error_tx(ifmsh->mshcfg.element_ttl, fwd_hdr->addr3, 0, reason, fwd_hdr->addr2, sdata); IEEE80211_IFSTA_MESH_CTR_INC(ifmsh, dropped_frames_no_route); + kfree_skb(fwd_skb); return RX_DROP_MONITOR; } |