rateest_hash is supposed to be protected by xt_rateest_mutex.
Reported-by: <syzbot+5cb189720978275e4c75@xxxxxxxxxxxxxxxxxxxxxxxxx>
Fixes: 5859034d7eb8 ("[NETFILTER]: x_tables: add RATEEST target")
Cc: Pablo Neira Ayuso <pablo@xxxxxxxxxxxxx>
Signed-off-by: Cong Wang <xiyou.wangcong@xxxxxxxxx>
---
net/netfilter/xt_RATEEST.c | 2 ++
1 file changed, 2 insertions(+)
diff --git a/net/netfilter/xt_RATEEST.c b/net/netfilter/xt_RATEEST.c
index 498b54fd04d7..83ec3a282755 100644
--- a/net/netfilter/xt_RATEEST.c
+++ b/net/netfilter/xt_RATEEST.c
@@ -36,7 +36,9 @@ static void xt_rateest_hash_insert(struct xt_rateest *est)
unsigned int h;
h = xt_rateest_hash(est->name);
+ mutex_lock(&xt_rateest_mutex);
hlist_add_head(&est->list, &rateest_hash[h]);
+ mutex_unlock(&xt_rateest_mutex);
}
struct xt_rateest *xt_rateest_lookup(const char *name)
--
2.13.0
--
To unsubscribe from this list: send the line "unsubscribe netfilter-devel" in
the body of a message to majordomo@xxxxxxxxxxxxxxx
More majordomo info at http://vger.kernel.org/majordomo-info.html
