If the parser fails to parse the key in parse_pair, it will access a NULL pointer. A simple way to trigger this is sending {foo} via QMP. This patch turns the segfault into a syntax error reply.
Signed-off-by: Kevin Wolf <kw...@redhat.com> Signed-off-by: Aurelien Jarno <aurel...@aurel32.net> (cherry picked from commit d758d90fe1f74a46042fca665036a23b4d5fe87d) --- json-parser.c | 2 +- 1 files changed, 1 insertions(+), 1 deletions(-) diff --git a/json-parser.c b/json-parser.c index 2ab6f6c..3497cd3 100644 --- a/json-parser.c +++ b/json-parser.c @@ -266,7 +266,7 @@ static int parse_pair(JSONParserContext *ctxt, QDict *dict, QList **tokens, va_l peek = qlist_peek(working); key = parse_value(ctxt, &working, ap); - if (qobject_type(key) != QTYPE_QSTRING) { + if (!key || qobject_type(key) != QTYPE_QSTRING) { parse_error(ctxt, peek, "key is not a string in object"); goto out; } -- 1.6.6.1