diff options
| author | Vasiliy Kulikov <segooon@gmail.com> | 2010-10-30 18:26:31 +0400 |
|---|---|---|
| committer | Gustavo F. Padovan <padovan@profusion.mobi> | 2010-11-09 02:20:47 -0200 |
| commit | a2f9b9508308ce2d86f34c8b6b3afddcb02025e3 (patch) | |
| tree | 512c87333c6eb48c07af005a7865ccc9943518c6 /net | |
| parent | 4c84b144fc14d17e5f0b4dfb777eac5bd818fd4f (diff) | |
Bluetooth: hidp: fix information leak to userland
Structure hidp_conninfo is copied to userland with version, product,
vendor and name fields unitialized if both session->input and session->hid
are NULL. It leads to leaking of contents of kernel stack memory.
Signed-off-by: Vasiliy Kulikov <segooon@gmail.com>
Acked-by: Marcel Holtmann <marcel@holtmann.org>
Signed-off-by: Gustavo F. Padovan <padovan@profusion.mobi>
Diffstat (limited to 'net')
| -rw-r--r-- | net/bluetooth/hidp/core.c | 2 |
1 files changed, 1 insertions, 1 deletions
diff --git a/net/bluetooth/hidp/core.c b/net/bluetooth/hidp/core.c index c0ee8b3928ed..29544c21f4b5 100644 --- a/net/bluetooth/hidp/core.c +++ b/net/bluetooth/hidp/core.c @@ -107,6 +107,7 @@ static void __hidp_unlink_session(struct hidp_session *session) static void __hidp_copy_session(struct hidp_session *session, struct hidp_conninfo *ci) { + memset(ci, 0, sizeof(*ci)); bacpy(&ci->bdaddr, &session->bdaddr); ci->flags = session->flags; @@ -115,7 +116,6 @@ static void __hidp_copy_session(struct hidp_session *session, struct hidp_connin ci->vendor = 0x0000; ci->product = 0x0000; ci->version = 0x0000; - memset(ci->name, 0, 128); if (session->input) { ci->vendor = session->input->id.vendor; |