bus-message: let's always use -EBADMSG when the message is bad

-EINVAL means the arguments were somehow wrong, so translate the code we get
internally into -EBADMSG when returning.

diff --git a/src/libsystemd/sd-bus/bus-message.c b/src/libsystemd/sd-bus/bus-message.c
index 80d4407..41760b5 100644 (file)
--- a/src/libsystemd/sd-bus/bus-message.c
+++ b/src/libsystemd/sd-bus/bus-message.c
@@ -5385,6 +5385,8 @@ int bus_message_parse_fields(sd_bus_message *m) {
                                 &m->root_container.item_size,
                                 &m->root_container.offsets,
                                 &m->root_container.n_offsets);
+                if (r == -EINVAL)
+                        return -EBADMSG;
                 if (r < 0)
                         return r;
         }

diff --git a/test/fuzz/fuzz-bus-message/crash-c1b37b4729b42c0c05b23cba4eed5d8102498a1e b/test/fuzz/fuzz-bus-message/crash-c1b37b4729b42c0c05b23cba4eed5d8102498a1e
new file mode 100644 (file)
index 0000000..2ae1a87
Binary files /dev/null and b/test/fuzz/fuzz-bus-message/crash-c1b37b4729b42c0c05b23cba4eed5d8102498a1e differ