ssl/statem/statem_clnt.c:2438: error: INTEGER_OVERFLOW_L2
  ([0, +oo] - [`pkt->written`, `pkt->written` + 2]):unsigned64 by call to `WPACKET_sub_allocate_bytes__`.
Showing all 10 steps of the trace


ssl/statem/statem_clnt.c:2432:1: Parameter `pkt->written`
2430.   }
2431.   
2432. > static int tls_construct_cke_srp(SSL *s, WPACKET *pkt, int *al)
2433.   {
2434.   #ifndef OPENSSL_NO_SRP

ssl/statem/statem_clnt.c:2438:17: Call
2436.   
2437.       if (s->srp_ctx.A == NULL
2438.               || !WPACKET_sub_allocate_bytes_u16(pkt, BN_num_bytes(s->srp_ctx.A),
                        ^
2439.                                                  &abytes)) {
2440.           SSLerr(SSL_F_TLS_CONSTRUCT_CKE_SRP, ERR_R_INTERNAL_ERROR);

ssl/packet.c:51:10: Call
  49.                                    unsigned char **allocbytes, size_t lenbytes)
  50.   {
  51.       if (!WPACKET_start_sub_packet_len__(pkt, lenbytes)
                 ^
  52.               || !WPACKET_allocate_bytes(pkt, len, allocbytes)
  53.               || !WPACKET_close(pkt))

ssl/packet.c:205:1: Parameter `pkt->buf->length`
    203.   }
    204.   
    205. > int WPACKET_start_sub_packet_len__(WPACKET *pkt, size_t lenbytes)
    206.   {
    207.       WPACKET_SUB *sub;

ssl/packet.c:52:17: Call
  50.   {
  51.       if (!WPACKET_start_sub_packet_len__(pkt, lenbytes)
  52.               || !WPACKET_allocate_bytes(pkt, len, allocbytes)
                        ^
  53.               || !WPACKET_close(pkt))
  54.           return 0;

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, pkt->written + 2]):unsigned64 by call to `WPACKET_sub_allocate_bytes__` 
    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;
}
['static int tls_construct_cke_srp(SSL *s, WPACKET *pkt, int *al)\n{\n#ifndef OPENSSL_NO_SRP\n    unsigned char *abytes = NULL;\n    if (s->srp_ctx.A == NULL\n            || !WPACKET_sub_allocate_bytes_u16(pkt, BN_num_bytes(s->srp_ctx.A),\n                                               &abytes)) {\n        SSLerr(SSL_F_TLS_CONSTRUCT_CKE_SRP, ERR_R_INTERNAL_ERROR);\n        return 0;\n    }\n    BN_bn2bin(s->srp_ctx.A, abytes);\n    OPENSSL_free(s->session->srp_username);\n    s->session->srp_username = OPENSSL_strdup(s->srp_ctx.login);\n    if (s->session->srp_username == NULL) {\n        SSLerr(SSL_F_TLS_CONSTRUCT_CKE_SRP, ERR_R_MALLOC_FAILURE);\n        return 0;\n    }\n    return 1;\n#else\n    SSLerr(SSL_F_TLS_CONSTRUCT_CKE_SRP, ERR_R_INTERNAL_ERROR);\n    *al = SSL_AD_INTERNAL_ERROR;\n    return 0;\n#endif\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 - (unsigned char *)pkt->buf->data;\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}']