crypto/ec/ec2_smpl.c:608: error: BUFFER_OVERRUN_L3
  Offset: [-1, +oo] Size: [1, +oo] by call to `BN_CTX_end`.
Showing all 10 steps of the trace


crypto/ec/ec2_smpl.c:579:5: Call
577.       }
578.   
579.       BN_CTX_start(ctx);
           ^
580.       y2 = BN_CTX_get(ctx);
581.       lh = BN_CTX_get(ctx);

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/ec/ec2_smpl.c:608:5: Call
606.   
607.    err:
608.       BN_CTX_end(ctx);
           ^
609.       BN_CTX_free(new_ctx);
610.       return ret;

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 ec_GF2m_simple_is_on_curve(const EC_GROUP *group, const EC_POINT *point,\n                               BN_CTX *ctx)\n{\n    int ret = -1;\n    BN_CTX *new_ctx = NULL;\n    BIGNUM *lh, *y2;\n    int (*field_mul) (const EC_GROUP *, BIGNUM *, const BIGNUM *,\n                      const BIGNUM *, BN_CTX *);\n    int (*field_sqr) (const EC_GROUP *, BIGNUM *, const BIGNUM *, BN_CTX *);\n    if (EC_POINT_is_at_infinity(group, point))\n        return 1;\n    field_mul = group->meth->field_mul;\n    field_sqr = group->meth->field_sqr;\n    if (!point->Z_is_one)\n        return -1;\n    if (ctx == NULL) {\n        ctx = new_ctx = BN_CTX_new();\n        if (ctx == NULL)\n            return -1;\n    }\n    BN_CTX_start(ctx);\n    y2 = BN_CTX_get(ctx);\n    lh = BN_CTX_get(ctx);\n    if (lh == NULL)\n        goto err;\n    if (!BN_GF2m_add(lh, point->X, group->a))\n        goto err;\n    if (!field_mul(group, lh, lh, point->X, ctx))\n        goto err;\n    if (!BN_GF2m_add(lh, lh, point->Y))\n        goto err;\n    if (!field_mul(group, lh, lh, point->X, ctx))\n        goto err;\n    if (!BN_GF2m_add(lh, lh, group->b))\n        goto err;\n    if (!field_sqr(group, y2, point->Y, ctx))\n        goto err;\n    if (!BN_GF2m_add(lh, lh, y2))\n        goto err;\n    ret = BN_is_zero(lh);\n err:\n    BN_CTX_end(ctx);\n    BN_CTX_free(new_ctx);\n    return ret;\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}']