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Commit 5520d20f authored by Vasiliy Kulikov's avatar Vasiliy Kulikov Committed by Gustavo Padovan
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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: default avatarVasiliy Kulikov <segooon@gmail.com>
Acked-by: default avatarMarcel Holtmann <marcel@holtmann.org>
Signed-off-by: default avatarGustavo F. Padovan <padovan@profusion.mobi>
parent 127178d2

net/bluetooth/bnep/core.c

+1 −0
Original line number Diff line number Diff line
@@ -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;