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[PATCH] neigh_table_clear() doesn't free stats [message #5834] Fri, 01 September 2006 08:26 Go to previous message
Kirill Korotaev is currently offline  Kirill Korotaev
Messages: 137
Registered: January 2006
Senior Member
neigh_table_clear() doesn't free tbl->stats.
Found by Alexey Kuznetsov. Though Alexey considers this
leak minor for mainstream, I still believe that cleanup
code should not forget to free some of the resources :)

At least, this is critical for OpenVZ with virtualized
neighbour tables.

Signed-Off-By: Kirill Korotaev <>

diff --git a/net/core/neighbour.c b/net/core/neighbour.c
index 89b7904..a45bd21 100644
--- a/net/core/neighbour.c
+++ b/net/core/neighbour.c
@@ -1429,6 +1429,9 @@ int neigh_table_clear(struct neigh_table
tbl->phash_buckets = NULL;

+ free_percpu(tbl->stats);
+ tbl->stats = NULL;
return 0;
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