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tests/vhost-user-bridge.c: Sanity check socket path length 

The vhost-user-bridge binary accepts a UNIX socket path on
the command line. Sanity check that this is short enough to
fit into a sockaddr_un before copying it in.

Fixes: Coverity CID 1432866
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
Message-Id: <20210901152632.25511-1-peter.maydell@linaro.org>
Reviewed-by: Michael S. Tsirkin <mst@redhat.com>
Signed-off-by: Michael S. Tsirkin <mst@redhat.com>
Reviewed-by: Marc-André Lureau <marcandre.lureau@redhat.com>
This commit is contained in:
Peter Maydell 2021-09-01 16:26:32 +01:00 committed by Michael S. Tsirkin
parent c6effa9cf5
commit f88435148d
1 changed files with 5 additions and 0 deletions
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tests/vhost-user-bridge.c
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@ -540,6 +540,11 @@ vubr_new(const char *path, bool client)
CallbackFunc cb;
size_t len;
if (strlen(path) >= sizeof(un.sun_path)) {
fprintf(stderr, "unix domain socket path '%s' is too long\n", path);
exit(1);
}
/* Get a UNIX socket. */
dev->sock = socket(AF_UNIX, SOCK_STREAM, 0);
if (dev->sock == -1) {