ssl/statem/extensions_clnt.c:761: error: INTEGER_OVERFLOW_L2
  ([0, +oo] - [`pkt->written`, `pkt->written` + 6]):unsigned64 by call to `WPACKET_sub_allocate_bytes__`.
Showing all 14 steps of the trace


ssl/statem/extensions_clnt.c:708:1: Parameter `pkt->written`
706.   #define PSK_PRE_BINDER_OVERHEAD (2 + 2 + 2 + 2 + 4 + 2 + 1)
707.   
708. > int tls_construct_ctos_padding(SSL *s, WPACKET *pkt, unsigned int context,
709.                                  X509 *x, size_t chainidx, int *al)
710.   {

ssl/statem/extensions_clnt.c:760:14: Call
758.               hlen = 0;
759.   
760.           if (!WPACKET_put_bytes_u16(pkt, TLSEXT_TYPE_padding)
                    ^
761.                   || !WPACKET_sub_allocate_bytes_u16(pkt, hlen, &padbytes)) {
762.               SSLerr(SSL_F_TLS_CONSTRUCT_CTOS_PADDING, ERR_R_INTERNAL_ERROR);

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_clnt.c:761:21: Call
759.   
760.           if (!WPACKET_put_bytes_u16(pkt, TLSEXT_TYPE_padding)
761.                   || !WPACKET_sub_allocate_bytes_u16(pkt, hlen, &padbytes)) {
                           ^
762.               SSLerr(SSL_F_TLS_CONSTRUCT_CTOS_PADDING, ERR_R_INTERNAL_ERROR);
763.               return 0;

ssl/packet.c:28:10: Call
  26.                                    unsigned char **allocbytes, size_t lenbytes)
  27.   {
  28.       if (!WPACKET_start_sub_packet_len__(pkt, lenbytes)
                 ^
  29.               || !WPACKET_allocate_bytes(pkt, len, allocbytes)
  30.               || !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:29:17: Call
  27.   {
  28.       if (!WPACKET_start_sub_packet_len__(pkt, lenbytes)
  29.               || !WPACKET_allocate_bytes(pkt, len, allocbytes)
                        ^
  30.               || !WPACKET_close(pkt))
  31.           return 0;

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 + 6]):unsigned64 by call to `WPACKET_sub_allocate_bytes__` 
      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)
{
    assert(pkt->subs != NULL && len != 0);
    if (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;
}
['int tls_construct_ctos_padding(SSL *s, WPACKET *pkt, unsigned int context,\n                               X509 *x, size_t chainidx, int *al)\n{\n    unsigned char *padbytes;\n    size_t hlen;\n    if ((s->options & SSL_OP_TLSEXT_PADDING) == 0)\n        return 1;\n    if (!WPACKET_get_total_written(pkt, &hlen)) {\n        SSLerr(SSL_F_TLS_CONSTRUCT_CTOS_PADDING, ERR_R_INTERNAL_ERROR);\n        return 0;\n    }\n    if (s->session->ssl_version == TLS1_3_VERSION\n            && s->session->ext.ticklen != 0\n            && s->session->cipher != NULL) {\n        const EVP_MD *md = ssl_md(s->session->cipher->algorithm2);\n        if (md != NULL) {\n            hlen +=  PSK_PRE_BINDER_OVERHEAD + s->session->ext.ticklen\n                     + EVP_MD_size(md);\n        }\n    }\n    if (hlen > F5_WORKAROUND_MIN_MSG_LEN && hlen < F5_WORKAROUND_MAX_MSG_LEN) {\n        hlen = F5_WORKAROUND_MAX_MSG_LEN - hlen;\n        if (hlen >= 4)\n            hlen -= 4;\n        else\n            hlen = 0;\n        if (!WPACKET_put_bytes_u16(pkt, TLSEXT_TYPE_padding)\n                || !WPACKET_sub_allocate_bytes_u16(pkt, hlen, &padbytes)) {\n            SSLerr(SSL_F_TLS_CONSTRUCT_CTOS_PADDING, ERR_R_INTERNAL_ERROR);\n            return 0;\n        }\n        memset(padbytes, 0, hlen);\n    }\n    return 1;\n}', 'int WPACKET_put_bytes__(WPACKET *pkt, unsigned int val, size_t size)\n{\n    unsigned char *data;\n    assert(size <= sizeof(unsigned int));\n    if (size > sizeof(unsigned int)\n            || !WPACKET_allocate_bytes(pkt, size, &data)\n            || !put_value(data, val, size))\n        return 0;\n    return 1;\n}', 'int WPACKET_sub_allocate_bytes__(WPACKET *pkt, size_t len,\n                                 unsigned char **allocbytes, size_t lenbytes)\n{\n    if (!WPACKET_start_sub_packet_len__(pkt, lenbytes)\n            || !WPACKET_allocate_bytes(pkt, len, allocbytes)\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 - GETBUF(pkt);\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->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}']