test/bntest.c:944: error: BUFFER_OVERRUN_L3
  Offset: [-1, +oo] Size: [1, +oo] by call to `BN_mod_mul`.
Showing all 22 steps of the trace


test/bntest.c:918:1: Parameter `ctx->stack.depth`
916.   }
917.   
918. > int test_mod_mul(BIO *bp, BN_CTX *ctx)
919.   {
920.       BIGNUM *a, *b, *c, *d, *e;

test/bntest.c:932:9: Call
930.       BN_one(b);
931.       BN_zero(c);
932.       if (BN_mod_mul(e, a, b, c, ctx)) {
               ^
933.           fprintf(stderr, "BN_mod_mul with zero modulus succeeded!\n");
934.           return 0;

crypto/bn/bn_mod.c:73:1: Parameter `ctx->stack.depth`
  71.   
  72.   /* slow but works */
  73. > int BN_mod_mul(BIGNUM *r, const BIGNUM *a, const BIGNUM *b, const BIGNUM *m,
  74.                  BN_CTX *ctx)
  75.   {

crypto/bn/bn_mod.c:83:5: Call
  81.       bn_check_top(m);
  82.   
  83.       BN_CTX_start(ctx);
            ^
  84.       if ((t = BN_CTX_get(ctx)) == NULL)
  85.           goto err;

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

crypto/bn/bn_mod.c:98:5: Call
  96.       ret = 1;
  97.    err:
  98.       BN_CTX_end(ctx);
             ^
  99.       return (ret);
  100.   }

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

test/bntest.c:944:18: Call
942.               a->neg = rand_neg();
943.               b->neg = rand_neg();
944.               if (!BN_mod_mul(e, a, b, c, ctx)) {
                        ^
945.                   unsigned long l;
946.   

crypto/bn/bn_mod.c:73:1: Parameter `ctx->stack.depth`
  71.   
  72.   /* slow but works */
  73. > int BN_mod_mul(BIGNUM *r, const BIGNUM *a, const BIGNUM *b, const BIGNUM *m,
  74.                  BN_CTX *ctx)
  75.   {

crypto/bn/bn_mod.c:83:5: Call
  81.       bn_check_top(m);
  82.   
  83.       BN_CTX_start(ctx);
            ^
  84.       if ((t = BN_CTX_get(ctx)) == NULL)
  85.           goto err;

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

crypto/bn/bn_mod.c:87:14: Call
  85.           goto err;
  86.       if (a == b) {
  87.           if (!BN_sqr(t, a, ctx))
                     ^
  88.               goto err;
  89.       } else {

crypto/bn/bn_sqr.c:32:5: Call
    30.       }
    31.   
    32.       BN_CTX_start(ctx);
              ^
    33.       rr = (a != r) ? r : BN_CTX_get(ctx);
    34.       tmp = 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/bn/bn_sqr.c:100:5: Call
    98.       bn_check_top(rr);
    99.       bn_check_top(tmp);
    100.       BN_CTX_end(ctx);
               ^
    101.       return (ret);
    102.   }

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_mod_mul` 
        271.   static unsigned int BN_STACK_pop(BN_STACK *st)
        272.   {
        273.       return st->indexes[--(st->depth)];
                          ^
        274.   }
        275.   
