diff options
| author | Stefano Brivio <sbrivio@redhat.com> | 2022-03-15 23:17:44 +0100 |
|---|---|---|
| committer | Stefano Brivio <sbrivio@redhat.com> | 2022-03-29 15:35:38 +0200 |
| commit | 3eb19cfd8a7c03920aeecae6692048429288af88 (patch) | |
| tree | 88ffb6c69fab2da82a9d9910da1c57d34804d739 /tcp_splice.c | |
| parent | 66a95e331ec930e72bc06c54b283ea88b30ecbaa (diff) | |
| download | passt-3eb19cfd8a7c03920aeecae6692048429288af88.tar passt-3eb19cfd8a7c03920aeecae6692048429288af88.tar.gz passt-3eb19cfd8a7c03920aeecae6692048429288af88.tar.bz2 passt-3eb19cfd8a7c03920aeecae6692048429288af88.tar.lz passt-3eb19cfd8a7c03920aeecae6692048429288af88.tar.xz passt-3eb19cfd8a7c03920aeecae6692048429288af88.tar.zst passt-3eb19cfd8a7c03920aeecae6692048429288af88.zip | |
tcp, udp, util: Enforce 24-bit limit on socket numbers
This should never happen, but there are no formal guarantees: ensure
socket numbers are below SOCKET_MAX.
Signed-off-by: Stefano Brivio <sbrivio@redhat.com>
Diffstat (limited to 'tcp_splice.c')
| -rw-r--r-- | tcp_splice.c | 8 |
1 files changed, 8 insertions, 0 deletions
diff --git a/tcp_splice.c b/tcp_splice.c index cb8df7b..d374785 100644 --- a/tcp_splice.c +++ b/tcp_splice.c @@ -418,6 +418,14 @@ static int tcp_splice_connect(struct ctx *c, struct tcp_splice_conn *conn, const struct sockaddr *sa; socklen_t sl; + if (sock_conn < 0) + return -errno; + + if (sock_conn > SOCKET_MAX) { + close(sock_conn); + return -EIO; + } + conn->b = sock_conn; if (s < 0) |