pack: fix heap-double-free in flb_pack_state_reset (fluent#5883)

https://bugs.chromium.org/p/oss-fuzz/issues/detail?id=45978 Signed-off-by: Aleks L <[email protected]>
nokute78 · Aug 20, 2022 · 74a21b1 · 74a21b1
1 parent 676a26b
commit 74a21b1
Showing 1 changed file with 2 additions and 0 deletions.
diff --git a/src/flb_pack.c b/src/flb_pack.c
@@ -333,11 +333,13 @@ int flb_pack_state_init(struct flb_pack_state *s)
 void flb_pack_state_reset(struct flb_pack_state *s)
 {
     flb_free(s->tokens);
+    s->tokens = NULL;
     s->tokens_size  = 0;
     s->tokens_count = 0;
     s->last_byte    = 0;
     s->buf_size     = 0;
     flb_free(s->buf_data);
+    s->buf_data = NULL;
 }