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Merge pull request #655 from MarcT512/issue654

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json_parse: Fix read past end of buffer
This commit is contained in:
Eric Hawicz
2020-08-07 10:18:30 -04:00
committed by GitHub
parent 56a89f902f 4e9e44e525
commit 98b7ee93fd
1 changed files with 2 additions and 1 deletions
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3
apps/json_parse.c
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@@ -82,7 +82,8 @@ static int parseit(int fd, int (*callback)(struct json_object *))
int parse_end = json_tokener_get_parse_end(tok); int parse_end = json_tokener_get_parse_end(tok);
if (obj == NULL && jerr != json_tokener_continue) 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); fflush(stdout);
int fail_offset = total_read - ret + start_pos + parse_end; int fail_offset = total_read - ret + start_pos + parse_end;
fprintf(stderr, "Failed at offset %d: %s %c\n", fail_offset, fprintf(stderr, "Failed at offset %d: %s %c\n", fail_offset,