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| author | Tetsuo Handa <penguin-kernel@I-love.SAKURA.ne.jp> | 2019-04-12 19:52:36 +0900 |
|---|---|---|
| committer | David S. Miller <davem@davemloft.net> | 2019-04-12 10:25:03 -0700 |
| commit | 238ffdc49ef98b15819cfd5e3fb23194e3ea3d39 (patch) | |
| tree | 6c23048270495971ca7ab13423d5ca7df6d00786 | |
| parent | dd3ac9a684358b8c1d5c432ca8322aaf5e4f28ee (diff) | |
| download | linux-238ffdc49ef98b15819cfd5e3fb23194e3ea3d39.tar.gz linux-238ffdc49ef98b15819cfd5e3fb23194e3ea3d39.tar.bz2 linux-238ffdc49ef98b15819cfd5e3fb23194e3ea3d39.zip | |
mISDN: Check address length before reading address family
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>
| -rw-r--r-- | drivers/isdn/mISDN/socket.c | 4 |
1 files changed, 2 insertions, 2 deletions
diff --git a/drivers/isdn/mISDN/socket.c b/drivers/isdn/mISDN/socket.c index 4ab8b1b6608f..a14e35d40538 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); |