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JSON: Fix string parsing when \\ escape is at the end of buffer

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This would have resulted in reading one octet past the end of the buffer
before rejecting the string.

Signed-off-by: Jouni Malinen <j@w1.fi>
This commit is contained in:
Jouni Malinen 2019-02-10 01:40:36 +02:00
parent 0dedcb3154
commit 1e5506588d
1 changed files with 5 additions and 0 deletions
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5
src/utils/json.c
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@ -103,6 +103,11 @@ static char * json_parse_string(const char **json_pos, const char *end)
return str;
case '\\':
pos++;
if (pos >= end) {
wpa_printf(MSG_DEBUG,
"JSON: Truncated \\ escape");
goto fail;
}
switch (*pos) {
case '"':
case '\\':