ssl/statem/extensions_srvr.c:1320: error: INTEGER_OVERFLOW_L2
  ([0, +oo] - [`pkt->written`, `s->s3->previous_client_finished_len` + `pkt->written` + 5]):unsigned64 by call to `WPACKET_memcpy`.
Showing all 12 steps of the trace


ssl/statem/extensions_srvr.c:1318:17: Call
1316.               || !WPACKET_start_sub_packet_u16(pkt)
1317.               || !WPACKET_start_sub_packet_u8(pkt)
1318.               || !WPACKET_memcpy(pkt, s->s3->previous_client_finished,
                        ^
1319.                                  s->s3->previous_client_finished_len)
1320.               || !WPACKET_memcpy(pkt, s->s3->previous_server_finished,

ssl/packet.c:362:1: Parameter `pkt->buf->length`
  360.   }
  361.   
  362. > int WPACKET_memcpy(WPACKET *pkt, const void *src, size_t len)
  363.   {
  364.       unsigned char *dest;

ssl/statem/extensions_srvr.c:1320:17: Call
1318.               || !WPACKET_memcpy(pkt, s->s3->previous_client_finished,
1319.                                  s->s3->previous_client_finished_len)
1320.               || !WPACKET_memcpy(pkt, s->s3->previous_server_finished,
                        ^
1321.                                  s->s3->previous_server_finished_len)
1322.               || !WPACKET_close(pkt)

ssl/packet.c:362:1: Parameter `pkt->written`
  360.   }
  361.   
  362. > int WPACKET_memcpy(WPACKET *pkt, const void *src, size_t len)
  363.   {
  364.       unsigned char *dest;

ssl/packet.c:369:10: Call
  367.           return 1;
  368.   
  369.       if (!WPACKET_allocate_bytes(pkt, len, &dest))
                  ^
  370.           return 0;
  371.   

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

ssl/packet.c:18:10: Call
    16.   int WPACKET_allocate_bytes(WPACKET *pkt, size_t len, unsigned char **allocbytes)
    17.   {
    18.       if (!WPACKET_reserve_bytes(pkt, len, allocbytes))
                   ^
    19.           return 0;
    20.   

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

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

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

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

ssl/packet.c:49:36: Binary operation: ([0, +oo] - [pkt->written, s->s3->previous_client_finished_len + pkt->written + 5]):unsigned64 by call to `WPACKET_memcpy` 
      47.           return 0;
      48.   
      49.       if (pkt->staticbuf == NULL && (pkt->buf->length - pkt->written < len)) {
                                               ^
      50.           size_t newlen;
      51.           size_t reflen;

int WPACKET_reserve_bytes(WPACKET *pkt, size_t len, unsigned char **allocbytes)
{
    if (!ossl_assert(pkt->subs != NULL && len != 0))
        return 0;
    if (pkt->maxsize - pkt->written < len)
        return 0;
    if (pkt->staticbuf == NULL && (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;
    }
    if (allocbytes != NULL)
        *allocbytes = WPACKET_get_curr(pkt);
    return 1;
}
['EXT_RETURN tls_construct_stoc_renegotiate(SSL *s, WPACKET *pkt,\n                                          unsigned int context, X509 *x,\n                                          size_t chainidx)\n{\n    if (!s->s3->send_connection_binding)\n        return EXT_RETURN_NOT_SENT;\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        SSLfatal(s, SSL_AD_INTERNAL_ERROR, SSL_F_TLS_CONSTRUCT_STOC_RENEGOTIATE,\n                 ERR_R_INTERNAL_ERROR);\n        return EXT_RETURN_FAIL;\n    }\n    return EXT_RETURN_SENT;\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    if (!ossl_assert(pkt->subs != NULL && len != 0))\n        return 0;\n    if (pkt->maxsize - pkt->written < len)\n        return 0;\n    if (pkt->staticbuf == NULL && (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    if (allocbytes != NULL)\n        *allocbytes = WPACKET_get_curr(pkt);\n    return 1;\n}']