[Qemu-devel] [PATCH] json: Fix off-by-one assert check in next_state()

[Liam Merwick]

The assert checking if the value of lexer->state in next_state(),
which is used as an index to the 'json_lexer' array, incorrectly
checks for an index value less than or equal to ARRAY_SIZE(json_lexer).
Fix assert so that it just checks for an index less than the array size.

Signed-off-by: Liam Merwick <address@hidden>
---
 qobject/json-lexer.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/qobject/json-lexer.c b/qobject/json-lexer.c
index a7df2093aa30..632320d72d5d 100644
--- a/qobject/json-lexer.c
+++ b/qobject/json-lexer.c
@@ -266,7 +266,7 @@ static inline uint8_t next_state(JSONLexer *lexer, char ch, 
bool flush,
 {
     uint8_t next;
 
-    assert(lexer->state <= ARRAY_SIZE(json_lexer));
+    assert(lexer->state < ARRAY_SIZE(json_lexer));
     next = json_lexer[lexer->state][(uint8_t)ch];
     *char_consumed = !flush && !(next & LOOKAHEAD);
     return next & ~LOOKAHEAD;
-- 
1.8.3.1