diff options
| -rw-r--r-- | src/core/ngx_resolver.c | 5 |
1 files changed, 5 insertions, 0 deletions
diff --git a/src/core/ngx_resolver.c b/src/core/ngx_resolver.c index 63b26193d..9b1317234 100644 --- a/src/core/ngx_resolver.c +++ b/src/core/ngx_resolver.c @@ -3958,6 +3958,11 @@ ngx_resolver_copy(ngx_resolver_t *r, ngx_str_t *name, u_char *buf, u_char *src, } if (n & 0xc0) { + if (p >= last) { + err = "name is out of DNS response"; + goto invalid; + } + n = ((n & 0x3f) << 8) + *p; p = &buf[n]; |