diff options
| author | Marc <34656315+MarcT512@users.noreply.github.com> | 2020-08-07 10:49:45 +0100 |
|---|---|---|
| committer | GitHub <noreply@github.com> | 2020-08-07 10:49:45 +0100 |
| commit | 4e9e44e5258dee7654f74948b0dd5da39c28beec (patch) | |
| tree | bc59f1974f24fbcc05de86384276ed14561d911d | |
| parent | 730e3d044f2ac2e44e38bf67ac31c19925428d15 (diff) | |
| download | json-c-4e9e44e5258dee7654f74948b0dd5da39c28beec.tar.gz | |
Fix read past end of buffer
Resolves https://github.com/json-c/json-c/issues/654
| -rw-r--r-- | apps/json_parse.c | 3 |
1 files changed, 2 insertions, 1 deletions
diff --git a/apps/json_parse.c b/apps/json_parse.c index bba4622..72b31a8 100644 --- a/apps/json_parse.c +++ b/apps/json_parse.c @@ -82,7 +82,8 @@ static int parseit(int fd, int (*callback)(struct json_object *)) int parse_end = json_tokener_get_parse_end(tok); if (obj == NULL && jerr != json_tokener_continue) { - char *aterr = &buf[start_pos + parse_end]; + char *aterr = (start_pos + parse_end < sizeof(buf)) ? + &buf[start_pos + parse_end] : ""; fflush(stdout); int fail_offset = total_read - ret + start_pos + parse_end; fprintf(stderr, "Failed at offset %d: %s %c\n", fail_offset, |