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buffer over-read fix in magic_sub

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Nigel Heron
2014-10-10 10:32:58 -04:00
parent 9951b7536e
commit a9177d3a6b
1 changed files with 1 additions and 1 deletions
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core/utils.c
+1 -1
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@@ -1839,7 +1839,7 @@ char *magic_sub(char *buffer, size_t len, size_t * size, char *magic_table[]) {
for (i = 0; i < len; i++) {
if (buffer[i] == '%' && (i + 1) < len && magic_table[(unsigned char) buffer[i + 1]]) {
old_magic_buf = magic_buf;
magic_buf = uwsgi_concat3n(old_magic_buf, magic_len, magic_table[(unsigned char) buffer[i + 1]], strlen(magic_table[(unsigned char) buffer[i + 1]]), buffer + i + 2, len - i);
magic_buf = uwsgi_concat3n(old_magic_buf, magic_len, magic_table[(unsigned char) buffer[i + 1]], strlen(magic_table[(unsigned char) buffer[i + 1]]), buffer + i + 2, len - i - 2);
free(old_magic_buf);
magic_len += strlen(magic_table[(unsigned char) buffer[i + 1]]);
magic_ptr = magic_buf + magic_len;