ssl/statem/extensions_srvr.c:871: error: INTEGER_OVERFLOW_L2
  ([0, +oo] - [`pkt->written`, `pkt->written` + 7]):unsigned64 by call to `WPACKET_sub_memcpy__`.
Showing all 18 steps of the trace


ssl/statem/extensions_srvr.c:854:1: Parameter `pkt->written`
852.   
853.   #ifndef OPENSSL_NO_EC
854. > EXT_RETURN tls_construct_stoc_ec_pt_formats(SSL *s, WPACKET *pkt,
855.                                               unsigned int context, X509 *x,
856.                                               size_t chainidx, int *al)

ssl/statem/extensions_srvr.c:869:10: Call
867.   
868.       tls1_get_formatlist(s, &plist, &plistlen);
869.       if (!WPACKET_put_bytes_u16(pkt, TLSEXT_TYPE_ec_point_formats)
                ^
870.               || !WPACKET_start_sub_packet_u16(pkt)
871.               || !WPACKET_sub_memcpy_u8(pkt, plist, plistlen)

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

ssl/statem/extensions_srvr.c:870:17: Call
868.       tls1_get_formatlist(s, &plist, &plistlen);
869.       if (!WPACKET_put_bytes_u16(pkt, TLSEXT_TYPE_ec_point_formats)
870.               || !WPACKET_start_sub_packet_u16(pkt)
                       ^
871.               || !WPACKET_sub_memcpy_u8(pkt, plist, plistlen)
872.               || !WPACKET_close(pkt)) {

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/statem/extensions_srvr.c:871:17: Call
869.       if (!WPACKET_put_bytes_u16(pkt, TLSEXT_TYPE_ec_point_formats)
870.               || !WPACKET_start_sub_packet_u16(pkt)
871.               || !WPACKET_sub_memcpy_u8(pkt, plist, plistlen)
                       ^
872.               || !WPACKET_close(pkt)) {
873.           SSLerr(SSL_F_TLS_CONSTRUCT_STOC_EC_PT_FORMATS, ERR_R_INTERNAL_ERROR);

ssl/packet.c:386:10: Call
  384.                            size_t lenbytes)
  385.   {
  386.       if (!WPACKET_start_sub_packet_len__(pkt, lenbytes)
                  ^
  387.               || !WPACKET_memcpy(pkt, src, len)
  388.               || !WPACKET_close(pkt))

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

ssl/packet.c:387:17: Call
  385.   {
  386.       if (!WPACKET_start_sub_packet_len__(pkt, lenbytes)
  387.               || !WPACKET_memcpy(pkt, src, len)
                         ^
  388.               || !WPACKET_close(pkt))
  389.           return 0;

ssl/packet.c:368:1: Parameter `pkt->written`
    366.   }
    367.   
    368. > int WPACKET_memcpy(WPACKET *pkt, const void *src, size_t len)
    369.   {
    370.       unsigned char *dest;

ssl/packet.c:375:10: Call
    373.           return 1;
    374.   
    375.       if (!WPACKET_allocate_bytes(pkt, len, &dest))
                    ^
    376.           return 0;
    377.   

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 + 7]):unsigned64 by call to `WPACKET_sub_memcpy__` 
        47.           return 0;
        48.   
        49.       if (pkt->staticbuf == NULL && (pkt->buf->length - pkt->written < len)) {
                                                 ^
        50.           size_t newlen;
        51.           size_t reflen;
