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jack: fix some potential NULL pointer derefs

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If the client has no pid property, don't try to atoi a NULL string.

If the : is stripped of a very long port name, don't return a NULL+1
string in port_short_name().

Don't deref a potential NULL port in debug log.
This commit is contained in:
Wim Taymans 2026-05-04 12:04:08 +02:00
parent 16ba0ef59b
commit 62dbd49f5a
1 changed files with 4 additions and 4 deletions
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8
pipewire-jack/src/pipewire-jack.c
View file

@ -3790,7 +3790,8 @@ static void registry_event_global(void *data, uint32_t id,
if ((str = spa_dict_lookup(props, PW_KEY_SEC_PID)) != NULL) {
pw_log_debug("%p: pid of \"%s\" is \"%s\"", c, app, str);
} else {
pw_log_debug("%p: pid of \"%s\" is unknown", c, app);
pw_log_warn("%p: pid of \"%s\" is unknown", c, app);
str = "0";
}
o = alloc_object(c, INTERFACE_Client);
@ -5986,7 +5987,8 @@ const char * jack_port_short_name (const jack_port_t *port)
return_val_if_fail(o != NULL, NULL);
if (o->type != INTERFACE_Port)
return NULL;
return strchr(port_name(o), ':') + 1;
const char *p = strchr(port_name(o), ':');
return p ? p + 1 : port_name(o);
}
SPA_EXPORT
@ -6582,8 +6584,6 @@ int jack_disconnect (jack_client_t *client,
src = find_port_by_name(c, source_port);
dst = find_port_by_name(c, destination_port);
pw_log_debug("%p: %d %d", client, src->id, dst->id);
if (src == NULL || dst == NULL ||
!(src->port.flags & JackPortIsOutput) ||
!(dst->port.flags & JackPortIsInput)) {