ssl/statem/extensions_clnt.c:99: error: INTEGER_OVERFLOW_L2
  ([0, +oo] - [`pkt->written`, `pkt->written` + 4]):unsigned64 by call to `WPACKET_start_sub_packet_len__`.
Showing all 12 steps of the trace


ssl/statem/extensions_clnt.c:98:17: Call
96.       if (!WPACKET_put_bytes_u16(pkt, TLSEXT_TYPE_srp)
97.                  /* Sub-packet for SRP extension */
98.               || !WPACKET_start_sub_packet_u16(pkt)
                       ^
99.               || !WPACKET_start_sub_packet_u8(pkt)
100.                  /* login must not be zero...internal error if so */

crypto/packet.c:292:1: Parameter `pkt->buf->length`
  290.   }
  291.   
  292. > int WPACKET_start_sub_packet_len__(WPACKET *pkt, size_t lenbytes)
  293.   {
  294.       WPACKET_SUB *sub;

ssl/statem/extensions_clnt.c:99:17: Call
97.                  /* Sub-packet for SRP extension */
98.               || !WPACKET_start_sub_packet_u16(pkt)
99.               || !WPACKET_start_sub_packet_u8(pkt)
                       ^
100.                  /* login must not be zero...internal error if so */
101.               || !WPACKET_set_flags(pkt, WPACKET_FLAGS_NON_ZERO_LENGTH)

crypto/packet.c:292:1: Parameter `pkt->written`
  290.   }
  291.   
  292. > int WPACKET_start_sub_packet_len__(WPACKET *pkt, size_t lenbytes)
  293.   {
  294.       WPACKET_SUB *sub;

crypto/packet.c:318:10: Call
  316.       sub->packet_len = pkt->written;
  317.   
  318.       if (!WPACKET_allocate_bytes(pkt, lenbytes, &lenchars))
                  ^
  319.           return 0;
  320.   

crypto/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))

crypto/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.   

crypto/packet.c:43:1: <LHS trace>
41.                           : NULL))
42.   
43. > int WPACKET_reserve_bytes(WPACKET *pkt, size_t len, unsigned char **allocbytes)
44.   {
45.       /* Internal API, so should not fail */

crypto/packet.c:43:1: Parameter `pkt->buf->length`
      41.                           : NULL))
      42.   
      43. > int WPACKET_reserve_bytes(WPACKET *pkt, size_t len, unsigned char **allocbytes)
      44.   {
      45.       /* Internal API, so should not fail */

crypto/packet.c:43:1: <RHS trace>
41.                           : NULL))
42.   
43. > int WPACKET_reserve_bytes(WPACKET *pkt, size_t len, unsigned char **allocbytes)
44.   {
45.       /* Internal API, so should not fail */

crypto/packet.c:43:1: Parameter `len`
      41.                           : NULL))
      42.   
      43. > int WPACKET_reserve_bytes(WPACKET *pkt, size_t len, unsigned char **allocbytes)
      44.   {
      45.       /* Internal API, so should not fail */

crypto/packet.c:52:30: Binary operation: ([0, +oo] - [pkt->written, pkt->written + 4]):unsigned64 by call to `WPACKET_start_sub_packet_len__` 
      50.           return 0;
      51.   
      52.       if (pkt->buf != NULL && (pkt->buf->length - pkt->written < len)) {
                                         ^
      53.           size_t newlen;
      54.           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->buf != 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_ctos_srp(SSL *s, WPACKET *pkt, unsigned int context,\n                                  X509 *x, size_t chainidx)\n{\n    if (s->srp_ctx.login == NULL)\n        return EXT_RETURN_NOT_SENT;\n    if (!WPACKET_put_bytes_u16(pkt, TLSEXT_TYPE_srp)\n            || !WPACKET_start_sub_packet_u16(pkt)\n            || !WPACKET_start_sub_packet_u8(pkt)\n            || !WPACKET_set_flags(pkt, WPACKET_FLAGS_NON_ZERO_LENGTH)\n            || !WPACKET_memcpy(pkt, s->srp_ctx.login,\n                               strlen(s->srp_ctx.login))\n            || !WPACKET_close(pkt)\n            || !WPACKET_close(pkt)) {\n        SSLfatal(s, SSL_AD_INTERNAL_ERROR, SSL_F_TLS_CONSTRUCT_CTOS_SRP,\n                 ERR_R_INTERNAL_ERROR);\n        return EXT_RETURN_FAIL;\n    }\n    return EXT_RETURN_SENT;\n}', 'int WPACKET_start_sub_packet_len__(WPACKET *pkt, size_t lenbytes)\n{\n    WPACKET_SUB *sub;\n    unsigned char *lenchars;\n    if (!ossl_assert(pkt->subs != NULL))\n        return 0;\n    if ((sub = OPENSSL_zalloc(sizeof(*sub))) == NULL) {\n        SSLerr(SSL_F_WPACKET_START_SUB_PACKET_LEN__, ERR_R_MALLOC_FAILURE);\n        return 0;\n    }\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    sub->packet_len = pkt->written;\n    if (!WPACKET_allocate_bytes(pkt, lenbytes, &lenchars))\n        return 0;\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->buf != 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}']