[PATCH 1/9] mac80211: Fix RCU pointer dereference in mesh_path_discard_frame()
From: Thomas Pedersen <hidden>
Date: 2011-08-25 01:41:07
Subsystem:
mac80211, the rest · Maintainers:
Johannes Berg, Linus Torvalds
From: Javier Cardona <redacted> Reported by Pedro Larbig (ASPj) Signed-off-by: Javier Cardona <redacted> --- net/mac80211/mesh_pathtbl.c | 2 ++ 1 files changed, 2 insertions(+), 0 deletions(-)
diff --git a/net/mac80211/mesh_pathtbl.c b/net/mac80211/mesh_pathtbl.c
index 3c2bcb2..ee35f75 100644
--- a/net/mac80211/mesh_pathtbl.c
+++ b/net/mac80211/mesh_pathtbl.c@@ -991,7 +991,9 @@ void mesh_path_discard_frame(struct sk_buff *skb, da = hdr->addr3; ra = hdr->addr1; + rcu_read_lock(); mpath = mesh_path_lookup(da, sdata); + rcu_read_unlock(); if (mpath) sn = ++mpath->sn; mesh_path_error_tx(sdata->u.mesh.mshcfg.element_ttl, skb->data,
--
1.7.4.1