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author | Tetsuo Handa <penguin-kernel@I-love.SAKURA.ne.jp> | 2019-04-12 19:54:33 +0900 |
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committer | David S. Miller <davem@davemloft.net> | 2019-04-12 10:25:03 -0700 |
commit | bd7d46ddca06f1fadd68ceb99bc6e6f808ab50f2 (patch) | |
tree | 3ecb7b934cac41a04e79df65b7708deb254473ff | |
parent | a9107a14a9b9112775459ad291fc5de0f2513ce0 (diff) | |
download | linux-stable-bd7d46ddca06f1fadd68ceb99bc6e6f808ab50f2.tar.gz linux-stable-bd7d46ddca06f1fadd68ceb99bc6e6f808ab50f2.tar.bz2 linux-stable-bd7d46ddca06f1fadd68ceb99bc6e6f808ab50f2.zip |
Bluetooth: Check address length before reading address field
KMSAN will complain if valid address length passed to bind() is shorter
than sizeof(struct sockaddr_sco) bytes.
Signed-off-by: Tetsuo Handa <penguin-kernel@I-love.SAKURA.ne.jp>
Signed-off-by: David S. Miller <davem@davemloft.net>
-rw-r--r-- | net/bluetooth/sco.c | 4 |
1 files changed, 2 insertions, 2 deletions
diff --git a/net/bluetooth/sco.c b/net/bluetooth/sco.c index 9a580999ca57..d892b7c3cc42 100644 --- a/net/bluetooth/sco.c +++ b/net/bluetooth/sco.c @@ -523,12 +523,12 @@ static int sco_sock_bind(struct socket *sock, struct sockaddr *addr, struct sock *sk = sock->sk; int err = 0; - BT_DBG("sk %p %pMR", sk, &sa->sco_bdaddr); - if (!addr || addr_len < sizeof(struct sockaddr_sco) || addr->sa_family != AF_BLUETOOTH) return -EINVAL; + BT_DBG("sk %p %pMR", sk, &sa->sco_bdaddr); + lock_sock(sk); if (sk->sk_state != BT_OPEN) { |