ssl/statem/statem_clnt.c:2833: error: INTEGER_OVERFLOW_L2
  ([0, +oo] - [`pkt->written`, `pkt->written` + 1]):unsigned64 by call to `WPACKET_sub_memcpy__`.
Showing all 14 steps of the trace


ssl/statem/statem_clnt.c:2825:1: Parameter `pkt->written`
2823.   
2824.   #ifndef OPENSSL_NO_NEXTPROTONEG
2825. > int tls_construct_next_proto(SSL *s, WPACKET *pkt)
2826.   {
2827.       size_t len, padding_len;

ssl/statem/statem_clnt.c:2833:10: Call
2831.       padding_len = 32 - ((len + 2) % 32);
2832.   
2833.       if (!WPACKET_sub_memcpy_u8(pkt, s->next_proto_negotiated, len)
                 ^
2834.               || !WPACKET_sub_allocate_bytes_u8(pkt, padding_len, &padding)) {
2835.           SSLerr(SSL_F_TLS_CONSTRUCT_NEXT_PROTO, ERR_R_INTERNAL_ERROR);

ssl/packet.c:320:10: Call
  318.                            size_t lenbytes)
  319.   {
  320.       if (!WPACKET_start_sub_packet_len__(pkt, lenbytes)
                  ^
  321.               || !WPACKET_memcpy(pkt, src, len)
  322.               || !WPACKET_close(pkt))

ssl/packet.c:224:1: Parameter `pkt->buf->length`
    222.   }
    223.   
    224. > int WPACKET_start_sub_packet_len__(WPACKET *pkt, size_t lenbytes)
    225.   {
    226.       WPACKET_SUB *sub;

ssl/packet.c:321:17: Call
  319.   {
  320.       if (!WPACKET_start_sub_packet_len__(pkt, lenbytes)
  321.               || !WPACKET_memcpy(pkt, src, len)
                         ^
  322.               || !WPACKET_close(pkt))
  323.           return 0;

ssl/packet.c:302:1: Parameter `pkt->written`
    300.   }
    301.   
    302. > int WPACKET_memcpy(WPACKET *pkt, const void *src, size_t len)
    303.   {
    304.       unsigned char *dest;

ssl/packet.c:309:10: Call
    307.           return 1;
    308.   
    309.       if (!WPACKET_allocate_bytes(pkt, len, &dest))
                    ^
    310.           return 0;
    311.   

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:36:1: <LHS trace>
34.   }
35.   
36. > int WPACKET_reserve_bytes(WPACKET *pkt, size_t len, unsigned char **allocbytes)
37.   {
38.       /* Internal API, so should not fail */

ssl/packet.c:36:1: Parameter `pkt->buf->length`
        34.   }
        35.   
        36. > int WPACKET_reserve_bytes(WPACKET *pkt, size_t len, unsigned char **allocbytes)
        37.   {
        38.       /* Internal API, so should not fail */

ssl/packet.c:36:1: <RHS trace>
34.   }
35.   
36. > int WPACKET_reserve_bytes(WPACKET *pkt, size_t len, unsigned char **allocbytes)
37.   {
38.       /* Internal API, so should not fail */

ssl/packet.c:36:1: Parameter `len`
        34.   }
        35.   
        36. > int WPACKET_reserve_bytes(WPACKET *pkt, size_t len, unsigned char **allocbytes)
        37.   {
        38.       /* Internal API, so should not fail */

ssl/packet.c:46:9: Binary operation: ([0, +oo] - [pkt->written, pkt->written + 1]):unsigned64 by call to `WPACKET_sub_memcpy__` 
        44.           return 0;
        45.   
        46.       if (pkt->buf->length - pkt->written < len) {
                      ^
        47.           size_t newlen;
        48.           size_t reflen;

int WPACKET_reserve_bytes(WPACKET *pkt, size_t len, unsigned char **allocbytes)
{
    assert(pkt->subs != NULL && len != 0);
    if (pkt->subs == NULL || len == 0)
        return 0;
    if (pkt->maxsize - pkt->written < len)
        return 0;
    if (pkt->buf->length - pkt->written < len) {
        size_t newlen;
        size_t reflen;
        reflen = (len > pkt->buf->length) ? len : pkt->buf->length;
        if (reflen > SIZE_MAX / 2) {
            newlen = SIZE_MAX;
        } else {
            newlen = reflen * 2;
            if (newlen < DEFAULT_BUF_SIZE)
                newlen = DEFAULT_BUF_SIZE;
        }
        if (BUF_MEM_grow(pkt->buf, newlen) == 0)
            return 0;
    }
    *allocbytes = (unsigned char *)pkt->buf->data + pkt->curr;
    return 1;
}
['int tls_construct_next_proto(SSL *s, WPACKET *pkt)\n{\n    size_t len, padding_len;\n    unsigned char *padding = NULL;\n    len = s->next_proto_negotiated_len;\n    padding_len = 32 - ((len + 2) % 32);\n    if (!WPACKET_sub_memcpy_u8(pkt, s->next_proto_negotiated, len)\n            || !WPACKET_sub_allocate_bytes_u8(pkt, padding_len, &padding)) {\n        SSLerr(SSL_F_TLS_CONSTRUCT_NEXT_PROTO, ERR_R_INTERNAL_ERROR);\n        goto err;\n    }\n    memset(padding, 0, padding_len);\n    return 1;\n err:\n    ssl3_send_alert(s, SSL3_AL_FATAL, SSL_AD_INTERNAL_ERROR);\n    return 0;\n}', 'int WPACKET_sub_memcpy__(WPACKET *pkt, const void *src, size_t len,\n                         size_t lenbytes)\n{\n    if (!WPACKET_start_sub_packet_len__(pkt, lenbytes)\n            || !WPACKET_memcpy(pkt, src, len)\n            || !WPACKET_close(pkt))\n        return 0;\n    return 1;\n}', 'int WPACKET_start_sub_packet_len__(WPACKET *pkt, size_t lenbytes)\n{\n    WPACKET_SUB *sub;\n    unsigned char *lenchars;\n    assert(pkt->subs != NULL);\n    if (pkt->subs == NULL)\n        return 0;\n    sub = OPENSSL_zalloc(sizeof(*sub));\n    if (sub == NULL)\n        return 0;\n    sub->parent = pkt->subs;\n    pkt->subs = sub;\n    sub->pwritten = pkt->written + lenbytes;\n    sub->lenbytes = lenbytes;\n    if (lenbytes == 0) {\n        sub->packet_len = 0;\n        return 1;\n    }\n    if (!WPACKET_allocate_bytes(pkt, lenbytes, &lenchars))\n        return 0;\n    sub->packet_len = lenchars - (unsigned char *)pkt->buf->data;\n    return 1;\n}', 'int WPACKET_memcpy(WPACKET *pkt, const void *src, size_t len)\n{\n    unsigned char *dest;\n    if (len == 0)\n        return 1;\n    if (!WPACKET_allocate_bytes(pkt, len, &dest))\n        return 0;\n    memcpy(dest, src, len);\n    return 1;\n}', 'int WPACKET_allocate_bytes(WPACKET *pkt, size_t len, unsigned char **allocbytes)\n{\n    if (!WPACKET_reserve_bytes(pkt, len, allocbytes))\n        return 0;\n    pkt->written += len;\n    pkt->curr += len;\n    return 1;\n}', 'int WPACKET_reserve_bytes(WPACKET *pkt, size_t len, unsigned char **allocbytes)\n{\n    assert(pkt->subs != NULL && len != 0);\n    if (pkt->subs == NULL || len == 0)\n        return 0;\n    if (pkt->maxsize - pkt->written < len)\n        return 0;\n    if (pkt->buf->length - pkt->written < len) {\n        size_t newlen;\n        size_t reflen;\n        reflen = (len > pkt->buf->length) ? len : pkt->buf->length;\n        if (reflen > SIZE_MAX / 2) {\n            newlen = SIZE_MAX;\n        } else {\n            newlen = reflen * 2;\n            if (newlen < DEFAULT_BUF_SIZE)\n                newlen = DEFAULT_BUF_SIZE;\n        }\n        if (BUF_MEM_grow(pkt->buf, newlen) == 0)\n            return 0;\n    }\n    *allocbytes = (unsigned char *)pkt->buf->data + pkt->curr;\n    return 1;\n}']