ssl/t1_reneg.c:60: error: INTEGER_OVERFLOW_L2
  ([0, +oo] - [`pkt->written`, `s->s3->previous_client_finished_len` + `pkt->written` + 7]):unsigned64 by call to `WPACKET_memcpy`.
Showing all 10 steps of the trace


ssl/t1_reneg.c:58:17: Call
56.               || !WPACKET_start_sub_packet_u16(pkt)
57.               || !WPACKET_start_sub_packet_u8(pkt)
58.               || !WPACKET_memcpy(pkt, s->s3->previous_client_finished,
                      ^
59.                                  s->s3->previous_client_finished_len)
60.               || !WPACKET_memcpy(pkt, s->s3->previous_server_finished,

ssl/packet.c:283:1: Parameter `pkt->buf->length`
  281.   }
  282.   
  283. > int WPACKET_memcpy(WPACKET *pkt, const void *src, size_t len)
  284.   {
  285.       unsigned char *dest;

ssl/t1_reneg.c:60:17: Call
58.               || !WPACKET_memcpy(pkt, s->s3->previous_client_finished,
59.                                  s->s3->previous_client_finished_len)
60.               || !WPACKET_memcpy(pkt, s->s3->previous_server_finished,
                      ^
61.                                  s->s3->previous_server_finished_len)
62.               || !WPACKET_close(pkt)

ssl/packet.c:283:1: Parameter `pkt->written`
  281.   }
  282.   
  283. > int WPACKET_memcpy(WPACKET *pkt, const void *src, size_t len)
  284.   {
  285.       unsigned char *dest;

ssl/packet.c:290:10: Call
  288.           return 1;
  289.   
  290.       if (!WPACKET_allocate_bytes(pkt, len, &dest))
                  ^
  291.           return 0;
  292.   

ssl/packet.c:15:1: <LHS trace>
13.   #define DEFAULT_BUF_SIZE    256
14.   
15. > int WPACKET_allocate_bytes(WPACKET *pkt, size_t len, unsigned char **allocbytes)
16.   {
17.       /* Internal API, so should not fail */

ssl/packet.c:15:1: Parameter `pkt->buf->length`
    13.   #define DEFAULT_BUF_SIZE    256
    14.   
    15. > int WPACKET_allocate_bytes(WPACKET *pkt, size_t len, unsigned char **allocbytes)
    16.   {
    17.       /* Internal API, so should not fail */

ssl/packet.c:15:1: <RHS trace>
13.   #define DEFAULT_BUF_SIZE    256
14.   
15. > int WPACKET_allocate_bytes(WPACKET *pkt, size_t len, unsigned char **allocbytes)
16.   {
17.       /* Internal API, so should not fail */

ssl/packet.c:15:1: Parameter `len`
    13.   #define DEFAULT_BUF_SIZE    256
    14.   
    15. > int WPACKET_allocate_bytes(WPACKET *pkt, size_t len, unsigned char **allocbytes)
    16.   {
    17.       /* Internal API, so should not fail */

ssl/packet.c:25:9: Binary operation: ([0, +oo] - [pkt->written, s->s3->previous_client_finished_len + pkt->written + 7]):unsigned64 by call to `WPACKET_memcpy` 
    23.           return 0;
    24.   
    25.       if (pkt->buf->length - pkt->written < len) {
                  ^
    26.           size_t newlen;
    27.           size_t reflen;

int WPACKET_allocate_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;
    pkt->written += len;
    pkt->curr += len;
    return 1;
}
['int ssl_add_serverhello_renegotiate_ext(SSL *s, WPACKET *pkt)\n{\n    if (!WPACKET_put_bytes_u16(pkt, TLSEXT_TYPE_renegotiate)\n            || !WPACKET_start_sub_packet_u16(pkt)\n            || !WPACKET_start_sub_packet_u8(pkt)\n            || !WPACKET_memcpy(pkt, s->s3->previous_client_finished,\n                               s->s3->previous_client_finished_len)\n            || !WPACKET_memcpy(pkt, s->s3->previous_server_finished,\n                               s->s3->previous_server_finished_len)\n            || !WPACKET_close(pkt)\n            || !WPACKET_close(pkt))\n        return 0;\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    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    pkt->written += len;\n    pkt->curr += len;\n    return 1;\n}']