test/bntest.c:1085: error: BUFFER_OVERRUN_L3
  Offset: [-1, +oo] Size: [1, +oo] by call to `BN_mod_exp_mont_consttime`.
Showing all 32 steps of the trace


test/bntest.c:1064:1: Parameter `ctx->stack.depth`
1062.   }
1063.   
1064. > int test_mod_exp_mont_consttime(BIO *bp, BN_CTX *ctx)
1065.   {
1066.       BIGNUM *a, *b, *c, *d, *e;

test/bntest.c:1078:9: Call
1076.       BN_one(b);
1077.       BN_zero(c);
1078.       if (BN_mod_exp_mont_consttime(d, a, b, c, ctx, NULL)) {
                ^
1079.           fprintf(stderr, "BN_mod_exp_mont_consttime with zero modulus "
1080.                   "succeeded\n");

crypto/bn/bn_exp.c:601:1: Parameter `ctx->stack.depth`
  599.    * http://www.daemonology.net/hyperthreading-considered-harmful/)
  600.    */
  601. > int BN_mod_exp_mont_consttime(BIGNUM *rr, const BIGNUM *a, const BIGNUM *p,
  602.                                 const BIGNUM *m, BN_CTX *ctx,
  603.                                 BN_MONT_CTX *in_mont)

test/bntest.c:1085:9: Call
1083.   
1084.       BN_set_word(c, 16);
1085.       if (BN_mod_exp_mont_consttime(d, a, b, c, ctx, NULL)) {
                ^
1086.           fprintf(stderr, "BN_mod_exp_mont_consttime with even modulus "
1087.                   "succeeded\n");

crypto/bn/bn_exp.c:601:1: Parameter `ctx->stack.depth`
  599.    * http://www.daemonology.net/hyperthreading-considered-harmful/)
  600.    */
  601. > int BN_mod_exp_mont_consttime(BIGNUM *rr, const BIGNUM *a, const BIGNUM *p,
  602.                                 const BIGNUM *m, BN_CTX *ctx,
  603.                                 BN_MONT_CTX *in_mont)

crypto/bn/bn_exp.c:641:5: Call
  639.       }
  640.   
  641.       BN_CTX_start(ctx);
             ^
  642.   
  643.       /*

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_exp.c:652:14: Call
  650.           if ((mont = BN_MONT_CTX_new()) == NULL)
  651.               goto err;
  652.           if (!BN_MONT_CTX_set(mont, m, ctx))
                      ^
  653.               goto err;
  654.       }

crypto/bn/bn_mont.c:247:1: Parameter `ctx->stack.depth`
    245.   }
    246.   
    247. > int BN_MONT_CTX_set(BN_MONT_CTX *mont, const BIGNUM *mod, BN_CTX *ctx)
    248.   {
    249.       int ret = 0;

crypto/bn/bn_mont.c:255:5: Call
    253.           return 0;
    254.   
    255.       BN_CTX_start(ctx);
               ^
    256.       if ((Ri = BN_CTX_get(ctx)) == NULL)
    257.           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_mont.c:326:14: Call
    324.           tmod.top = buf[0] != 0 ? 1 : 0;
    325.           /* Ri = R^-1 mod N */
    326.           if ((BN_mod_inverse(Ri, R, &tmod, ctx)) == NULL)
                        ^
    327.               goto err;
    328.           if (!BN_lshift(Ri, Ri, BN_BITS2))

crypto/bn/bn_gcd.c:124:1: Parameter `ctx->stack.depth`
      122.                                           BN_CTX *ctx);
      123.   
      124. > BIGNUM *BN_mod_inverse(BIGNUM *in,
      125.                          const BIGNUM *a, const BIGNUM *n, BN_CTX *ctx)
      126.   {

crypto/bn/bn_gcd.c:129:10: Call
      127.       BIGNUM *rv;
      128.       int noinv;
      129.       rv = int_bn_mod_inverse(in, a, n, ctx, &noinv);
                      ^
      130.       if (noinv)
      131.           BNerr(BN_F_BN_MOD_INVERSE, BN_R_NO_INVERSE);

crypto/bn/bn_gcd.c:135:1: Parameter `ctx->stack.depth`
        133.   }
        134.   
        135. > BIGNUM *int_bn_mod_inverse(BIGNUM *in,
        136.                              const BIGNUM *a, const BIGNUM *n, BN_CTX *ctx,
        137.                              int *pnoinv)

crypto/bn/bn_gcd.c:148:16: Call
        146.       if ((BN_get_flags(a, BN_FLG_CONSTTIME) != 0)
        147.           || (BN_get_flags(n, BN_FLG_CONSTTIME) != 0)) {
        148.           return BN_mod_inverse_no_branch(in, a, n, ctx);
                              ^
        149.       }
        150.   

crypto/bn/bn_gcd.c:455:1: Parameter `ctx->stack.depth`
          453.    * not contain branches that may leak sensitive information.
          454.    */
          455. > static BIGNUM *BN_mod_inverse_no_branch(BIGNUM *in,
          456.                                           const BIGNUM *a, const BIGNUM *n,
          457.                                           BN_CTX *ctx)

crypto/bn/bn_gcd.c:466:5: Call
          464.       bn_check_top(n);
          465.   
          466.       BN_CTX_start(ctx);
                     ^
          467.       A = BN_CTX_get(ctx);
          468.       B = BN_CTX_get(ctx);

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_gcd.c:501:18: Call
          499.               bn_init(&local_B);
          500.               BN_with_flags(&local_B, B, BN_FLG_CONSTTIME);
          501.               if (!BN_nnmod(B, &local_B, A, ctx))
                                  ^
          502.                   goto err;
          503.               /* Ensure local_B goes out of scope before any further use of B */

crypto/bn/bn_mod.c:13:1: Parameter `ctx->stack.depth`
            11.   #include "bn_lcl.h"
            12.   
            13. > int BN_nnmod(BIGNUM *r, const BIGNUM *m, const BIGNUM *d, BN_CTX *ctx)
            14.   {
            15.       /*

crypto/bn/bn_mod.c:20:11: Call
            18.        */
            19.   
            20.       if (!(BN_mod(r, m, d, ctx)))
                            ^
            21.           return 0;
            22.       if (!r->neg)

crypto/bn/bn_div.c:193:5: Call
              191.       }
              192.   
              193.       BN_CTX_start(ctx);
                         ^
              194.       tmp = BN_CTX_get(ctx);
              195.       snum = 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_div.c:416:5: Call
              414.       if (no_branch)
              415.           bn_correct_top(res);
              416.       BN_CTX_end(ctx);
                         ^
              417.       return (1);
              418.    err:

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