ssl/statem/statem_srvr.c:2512: error: INTEGER_OVERFLOW_L2
  ([0, +oo] - [`pkt->written`, `pkt->written` + 4]):unsigned64 by call to `tls_construct_extensions`.
Showing all 14 steps of the trace


ssl/statem/statem_srvr.c:2506:14: Call
2504.       if (SSL_IS_TLS13(s)) {
2505.           /* TODO(TLS1.3) for now send empty request context */
2506.           if (!WPACKET_put_bytes_u8(pkt, 0)) {
                     ^
2507.               SSLerr(SSL_F_TLS_CONSTRUCT_CERTIFICATE_REQUEST,
2508.                      ERR_R_INTERNAL_ERROR);

ssl/packet.c:312:1: Parameter `pkt->buf->length`
  310.   }
  311.   
  312. > int WPACKET_put_bytes__(WPACKET *pkt, unsigned int val, size_t size)
  313.   {
  314.       unsigned char *data;

ssl/statem/statem_srvr.c:2512:14: Call
2510.           }
2511.   
2512.           if (!tls_construct_extensions(s, pkt, EXT_TLS1_3_CERTIFICATE_REQUEST,
                     ^
2513.                                         NULL, 0, &al)) {
2514.               SSLerr(SSL_F_TLS_CONSTRUCT_CERTIFICATE_REQUEST,

ssl/statem/extensions.c:625:1: Parameter `pkt->written`
  623.    * failure construction stops at the first extension to fail to construct.
  624.    */
  625. > int tls_construct_extensions(SSL *s, WPACKET *pkt, unsigned int context,
  626.                                X509 *x, size_t chainidx, int *al)
  627.   {

ssl/statem/extensions.c:638:10: Call
  636.       tmpal = SSL_AD_INTERNAL_ERROR;
  637.   
  638.       if (!WPACKET_start_sub_packet_u16(pkt)
                  ^
  639.                  /*
  640.                   * If extensions are of zero length then we don't even add the

ssl/packet.c:275:1: Parameter `pkt->written`
    273.   }
    274.   
    275. > int WPACKET_start_sub_packet_len__(WPACKET *pkt, size_t lenbytes)
    276.   {
    277.       WPACKET_SUB *sub;

ssl/packet.c:299:10: Call
    297.       }
    298.   
    299.       if (!WPACKET_allocate_bytes(pkt, lenbytes, &lenchars))
                    ^
    300.           return 0;
    301.       /* Convert to an offset in case the underlying BUF_MEM gets realloc'd */

ssl/packet.c:15:1: Parameter `pkt->written`
      13.   #define DEFAULT_BUF_SIZE    256
      14.   
      15. > int WPACKET_allocate_bytes(WPACKET *pkt, size_t len, unsigned char **allocbytes)
      16.   {
      17.       if (!WPACKET_reserve_bytes(pkt, len, allocbytes))

ssl/packet.c:17:10: Call
      15.   int WPACKET_allocate_bytes(WPACKET *pkt, size_t len, unsigned char **allocbytes)
      16.   {
      17.       if (!WPACKET_reserve_bytes(pkt, len, allocbytes))
                     ^
      18.           return 0;
      19.   

ssl/packet.c:39:1: <LHS trace>
37.                        ? (p)->staticbuf : (unsigned char *)(p)->buf->data)
38.   
39. > int WPACKET_reserve_bytes(WPACKET *pkt, size_t len, unsigned char **allocbytes)
40.   {
41.       /* Internal API, so should not fail */

ssl/packet.c:39:1: Parameter `pkt->buf->length`
        37.                        ? (p)->staticbuf : (unsigned char *)(p)->buf->data)
        38.   
        39. > int WPACKET_reserve_bytes(WPACKET *pkt, size_t len, unsigned char **allocbytes)
        40.   {
        41.       /* Internal API, so should not fail */

ssl/packet.c:39:1: <RHS trace>
37.                        ? (p)->staticbuf : (unsigned char *)(p)->buf->data)
38.   
39. > int WPACKET_reserve_bytes(WPACKET *pkt, size_t len, unsigned char **allocbytes)
40.   {
41.       /* Internal API, so should not fail */

ssl/packet.c:39:1: Parameter `len`
        37.                        ? (p)->staticbuf : (unsigned char *)(p)->buf->data)
        38.   
        39. > int WPACKET_reserve_bytes(WPACKET *pkt, size_t len, unsigned char **allocbytes)
        40.   {
        41.       /* Internal API, so should not fail */

ssl/packet.c:49:36: Binary operation: ([0, +oo] - [pkt->written, pkt->written + 4]):unsigned64 by call to `tls_construct_extensions` 
        47.           return 0;
        48.   
        49.       if (pkt->staticbuf == NULL && (pkt->buf->length - pkt->written < len)) {
                                                 ^
        50.           size_t newlen;
        51.           size_t reflen;
