Commit 8d03e971 authored by Filip Palian's avatar Filip Palian Committed by Gustavo F. Padovan
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Bluetooth: l2cap and rfcomm: fix 1 byte infoleak to userspace.

Structures "l2cap_conninfo" and "rfcomm_conninfo" have one padding
byte each. This byte in "cinfo" is copied to userspace uninitialized.
Signed-off-by: default avatarFilip Palian <>
Acked-by: default avatarMarcel Holtmann <>
Signed-off-by: default avatarGustavo F. Padovan <>
parent 51892dbb
......@@ -413,6 +413,7 @@ static int l2cap_sock_getsockopt_old(struct socket *sock, int optname, char __us
memset(&cinfo, 0, sizeof(cinfo));
cinfo.hci_handle = chan->conn->hcon->handle;
memcpy(cinfo.dev_class, chan->conn->hcon->dev_class, 3);
......@@ -788,6 +788,7 @@ static int rfcomm_sock_getsockopt_old(struct socket *sock, int optname, char __u
l2cap_sk = rfcomm_pi(sk)->dlc->session->sock->sk;
memset(&cinfo, 0, sizeof(cinfo));
cinfo.hci_handle = conn->hcon->handle;
memcpy(cinfo.dev_class, conn->hcon->dev_class, 3);
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