crypto/dh/dh_check.c:49: error: BUFFER_OVERRUN_L3
  Offset: [-1, +oo] Size: [1, +oo] by call to `BN_CTX_end`.
Showing all 10 steps of the trace


crypto/dh/dh_check.c:32:5: Call
30.       if (ctx == NULL)
31.           goto err;
32.       BN_CTX_start(ctx);
          ^
33.       tmp = BN_CTX_get(ctx);
34.       if (tmp == NULL)

crypto/bn/bn_ctx.c:181:1: Parameter `*ctx->stack.indexes`
  179.   }
  180.   
  181. > void BN_CTX_start(BN_CTX *ctx)
  182.   {
  183.       CTXDBG_ENTRY("BN_CTX_start", ctx);

crypto/dh/dh_check.c:49:9: Call
47.    err:
48.       if (ctx != NULL) {
49.           BN_CTX_end(ctx);
              ^
50.           BN_CTX_free(ctx);
51.       }

crypto/bn/bn_ctx.c:195:1: Parameter `*ctx->stack.indexes`
  193.   }
  194.   
  195. > void BN_CTX_end(BN_CTX *ctx)
  196.   {
  197.       CTXDBG_ENTRY("BN_CTX_end", ctx);

crypto/bn/bn_ctx.c:201:27: Call
  199.           ctx->err_stack--;
  200.       else {
  201.           unsigned int fp = BN_STACK_pop(&ctx->stack);
                                   ^
  202.           /* Does this stack frame have anything to release? */
  203.           if (fp < ctx->used)

crypto/bn/bn_ctx.c:271:1: <Offset trace>
269.   }
270.   
271. > static unsigned int BN_STACK_pop(BN_STACK *st)
272.   {
273.       return st->indexes[--(st->depth)];

crypto/bn/bn_ctx.c:271:1: Parameter `st->depth`
    269.   }
    270.   
    271. > static unsigned int BN_STACK_pop(BN_STACK *st)
    272.   {
    273.       return st->indexes[--(st->depth)];

crypto/bn/bn_ctx.c:271:1: <Length trace>
269.   }
270.   
271. > static unsigned int BN_STACK_pop(BN_STACK *st)
272.   {
273.       return st->indexes[--(st->depth)];

crypto/bn/bn_ctx.c:271:1: Parameter `*st->indexes`
    269.   }
    270.   
    271. > static unsigned int BN_STACK_pop(BN_STACK *st)
    272.   {
    273.       return st->indexes[--(st->depth)];

crypto/bn/bn_ctx.c:273:12: Array access: Offset: [-1, +oo] Size: [1, +oo] by call to `BN_CTX_end` 
    271.   static unsigned int BN_STACK_pop(BN_STACK *st)
    272.   {
    273.       return st->indexes[--(st->depth)];
                      ^
    274.   }
    275.   

static unsigned int BN_STACK_pop(BN_STACK *st)
{
    return st->indexes[--(st->depth)];
}
['int DH_check_params(const DH *dh, int *ret)\n{\n    int ok = 0;\n    BIGNUM *tmp = NULL;\n    BN_CTX *ctx = NULL;\n    *ret = 0;\n    ctx = BN_CTX_new();\n    if (ctx == NULL)\n        goto err;\n    BN_CTX_start(ctx);\n    tmp = BN_CTX_get(ctx);\n    if (tmp == NULL)\n        goto err;\n    if (!BN_is_odd(dh->p))\n        *ret |= DH_CHECK_P_NOT_PRIME;\n    if (BN_is_negative(dh->g) || BN_is_zero(dh->g) || BN_is_one(dh->g))\n        *ret |= DH_NOT_SUITABLE_GENERATOR;\n    if (BN_copy(tmp, dh->p) == NULL || !BN_sub_word(tmp, 1))\n        goto err;\n    if (BN_cmp(dh->g, tmp) >= 0)\n        *ret |= DH_NOT_SUITABLE_GENERATOR;\n    ok = 1;\n err:\n    if (ctx != NULL) {\n        BN_CTX_end(ctx);\n        BN_CTX_free(ctx);\n    }\n    return (ok);\n}', 'void BN_CTX_start(BN_CTX *ctx)\n{\n    CTXDBG_ENTRY("BN_CTX_start", ctx);\n    if (ctx->err_stack || ctx->too_many)\n        ctx->err_stack++;\n    else if (!BN_STACK_push(&ctx->stack, ctx->used)) {\n        BNerr(BN_F_BN_CTX_START, BN_R_TOO_MANY_TEMPORARY_VARIABLES);\n        ctx->err_stack++;\n    }\n    CTXDBG_EXIT(ctx);\n}', 'void BN_CTX_end(BN_CTX *ctx)\n{\n    CTXDBG_ENTRY("BN_CTX_end", ctx);\n    if (ctx->err_stack)\n        ctx->err_stack--;\n    else {\n        unsigned int fp = BN_STACK_pop(&ctx->stack);\n        if (fp < ctx->used)\n            BN_POOL_release(&ctx->pool, ctx->used - fp);\n        ctx->used = fp;\n        ctx->too_many = 0;\n    }\n    CTXDBG_EXIT(ctx);\n}', 'static unsigned int BN_STACK_pop(BN_STACK *st)\n{\n    return st->indexes[--(st->depth)];\n}']