From 5520d20f68310fc158dcbbecfd5eac5cdfc5a241 Mon Sep 17 00:00:00 2001 From: Vasiliy Kulikov Date: Sat, 30 Oct 2010 18:26:21 +0400 Subject: [PATCH] Bluetooth: bnep: fix information leak to userland Structure bnep_conninfo is copied to userland with the field "device" that has the last elements unitialized. It leads to leaking of contents of kernel stack memory. Signed-off-by: Vasiliy Kulikov Acked-by: Marcel Holtmann Signed-off-by: Gustavo F. Padovan --- net/bluetooth/bnep/core.c | 1 + 1 file changed, 1 insertion(+) diff --git a/net/bluetooth/bnep/core.c b/net/bluetooth/bnep/core.c index f10b41fb05a0..5868597534e5 100644 --- a/net/bluetooth/bnep/core.c +++ b/net/bluetooth/bnep/core.c @@ -648,6 +648,7 @@ int bnep_del_connection(struct bnep_conndel_req *req) static void __bnep_copy_ci(struct bnep_conninfo *ci, struct bnep_session *s) { + memset(ci, 0, sizeof(*ci)); memcpy(ci->dst, s->eh.h_source, ETH_ALEN); strcpy(ci->device, s->dev->name); ci->flags = s->flags;