ssl/statem/extensions_clnt.c:1161: error: INTEGER_OVERFLOW_L2
  ([0, +oo] - [`pkt->written`, `pkt->written` + 2]):unsigned64 by call to `WPACKET_start_sub_packet_len__`.
Showing all 12 steps of the trace


ssl/statem/extensions_clnt.c:1160:10: Call
1158.   
1159.       /* construct extension - 0 length, no contents */
1160.       if (!WPACKET_put_bytes_u16(pkt, TLSEXT_TYPE_post_handshake_auth)
                 ^
1161.               || !WPACKET_start_sub_packet_u16(pkt)
1162.               || !WPACKET_close(pkt)) {

ssl/packet.c:306:1: Parameter `pkt->buf->length`
  304.   }
  305.   
  306. > int WPACKET_put_bytes__(WPACKET *pkt, unsigned int val, size_t size)
  307.   {
  308.       unsigned char *data;

ssl/statem/extensions_clnt.c:1161:17: Call
1159.       /* construct extension - 0 length, no contents */
1160.       if (!WPACKET_put_bytes_u16(pkt, TLSEXT_TYPE_post_handshake_auth)
1161.               || !WPACKET_start_sub_packet_u16(pkt)
                        ^
1162.               || !WPACKET_close(pkt)) {
1163.           SSLfatal(s, SSL_AD_INTERNAL_ERROR,

ssl/packet.c:270:1: Parameter `pkt->written`
  268.   }
  269.   
  270. > int WPACKET_start_sub_packet_len__(WPACKET *pkt, size_t lenbytes)
  271.   {
  272.       WPACKET_SUB *sub;

ssl/packet.c:293:10: Call
  291.       }
  292.   
  293.       if (!WPACKET_allocate_bytes(pkt, lenbytes, &lenchars))
                  ^
  294.           return 0;
  295.       /* Convert to an offset in case the underlying BUF_MEM gets realloc'd */

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:48:36: Binary operation: ([0, +oo] - [pkt->written, pkt->written + 2]):unsigned64 by call to `WPACKET_start_sub_packet_len__` 
      46.           return 0;
      47.   
      48.       if (pkt->staticbuf == NULL && (pkt->buf->length - pkt->written < len)) {
                                               ^
      49.           size_t newlen;
      50.           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_ctos_post_handshake_auth(SSL *s, WPACKET *pkt,\n                                                  unsigned int context,\n                                                  X509 *x, size_t chainidx)\n{\n#ifndef OPENSSL_NO_TLS1_3\n    if (!s->pha_forced) {\n        int i, n = 0;\n        if (s->cert == NULL)\n            return EXT_RETURN_NOT_SENT;\n        for (i = 0; i < SSL_PKEY_NUM; i++) {\n            if (s->cert->pkeys[i].x509 != NULL\n                    && s->cert->pkeys[i].privatekey != NULL)\n                n++;\n        }\n        if (n == 0)\n            return EXT_RETURN_NOT_SENT;\n    }\n    if (!WPACKET_put_bytes_u16(pkt, TLSEXT_TYPE_post_handshake_auth)\n            || !WPACKET_start_sub_packet_u16(pkt)\n            || !WPACKET_close(pkt)) {\n        SSLfatal(s, SSL_AD_INTERNAL_ERROR,\n                 SSL_F_TLS_CONSTRUCT_CTOS_POST_HANDSHAKE_AUTH,\n                 ERR_R_INTERNAL_ERROR);\n        return EXT_RETURN_FAIL;\n    }\n    s->post_handshake_auth = SSL_PHA_EXT_SENT;\n    return EXT_RETURN_SENT;\n#else\n    return EXT_RETURN_NOT_SENT;\n#endif\n}', 'int WPACKET_put_bytes__(WPACKET *pkt, unsigned int val, size_t size)\n{\n    unsigned char *data;\n    if (!ossl_assert(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_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    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    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}']