From: Tetsuo Handa penguin-kernel@I-love.SAKURA.ne.jp
[ Upstream commit 238ffdc49ef98b15819cfd5e3fb23194e3ea3d39 ]
KMSAN will complain if valid address length passed to bind() is shorter than sizeof("struct sockaddr_mISDN"->family) bytes.
Signed-off-by: Tetsuo Handa penguin-kernel@I-love.SAKURA.ne.jp Signed-off-by: David S. Miller davem@davemloft.net Signed-off-by: Sasha Levin sashal@kernel.org --- drivers/isdn/mISDN/socket.c | 4 ++-- 1 file changed, 2 insertions(+), 2 deletions(-)
diff --git a/drivers/isdn/mISDN/socket.c b/drivers/isdn/mISDN/socket.c index 15d3ca37669a..04da3a17cd95 100644 --- a/drivers/isdn/mISDN/socket.c +++ b/drivers/isdn/mISDN/socket.c @@ -710,10 +710,10 @@ base_sock_bind(struct socket *sock, struct sockaddr *addr, int addr_len) struct sock *sk = sock->sk; int err = 0;
- if (!maddr || maddr->family != AF_ISDN) + if (addr_len < sizeof(struct sockaddr_mISDN)) return -EINVAL;
- if (addr_len < sizeof(struct sockaddr_mISDN)) + if (!maddr || maddr->family != AF_ISDN) return -EINVAL;
lock_sock(sk);