crypto/ec/ecp_smpl.c:1401: error: BUFFER_OVERRUN_L3
  Offset: [-1, +oo] Size: [1, +oo] by call to `BN_mod_inverse`.
Showing all 26 steps of the trace


crypto/ec/ecp_smpl.c:1378:1: Parameter `ctx->stack.depth`
1376.    * Since we don't have a Mont structure here, SCA hardening is with blinding.
1377.    */
1378. > int ec_GFp_simple_field_inv(const EC_GROUP *group, BIGNUM *r, const BIGNUM *a,
1379.                               BN_CTX *ctx)
1380.   {

crypto/ec/ecp_smpl.c:1388:5: Call
1386.           return 0;
1387.   
1388.       BN_CTX_start(ctx);
            ^
1389.       if ((e = BN_CTX_get(ctx)) == NULL)
1390.           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/ec/ecp_smpl.c:1401:10: Call
1399.           goto err;
1400.       /* r := 1/(a * e) */
1401.       if (!BN_mod_inverse(r, r, group->field, ctx)) {
                 ^
1402.           ECerr(EC_F_EC_GFP_SIMPLE_FIELD_INV, EC_R_CANNOT_INVERT);
1403.           goto err;

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:155:16: Call
    153.       if ((BN_get_flags(a, BN_FLG_CONSTTIME) != 0)
    154.           || (BN_get_flags(n, BN_FLG_CONSTTIME) != 0)) {
    155.           return BN_mod_inverse_no_branch(in, a, n, ctx);
                          ^
    156.       }
    157.   

crypto/bn/bn_gcd.c:458:1: Parameter `ctx->stack.depth`
      456.    * not contain branches that may leak sensitive information.
      457.    */
      458. > static BIGNUM *BN_mod_inverse_no_branch(BIGNUM *in,
      459.                                           const BIGNUM *a, const BIGNUM *n,
      460.                                           BN_CTX *ctx)

crypto/bn/bn_gcd.c:469:5: Call
      467.       bn_check_top(n);
      468.   
      469.       BN_CTX_start(ctx);
                 ^
      470.       A = BN_CTX_get(ctx);
      471.       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:504:18: Call
      502.               bn_init(&local_B);
      503.               BN_with_flags(&local_B, B, BN_FLG_CONSTTIME);
      504.               if (!BN_nnmod(B, &local_B, A, ctx))
                              ^
      505.                   goto err;
      506.               /* 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:209:1: Parameter `ctx->stack.depth`
          207.    * If 'dv' or 'rm' is NULL, the respective value is not returned.
          208.    */
          209. > int BN_div(BIGNUM *dv, BIGNUM *rm, const BIGNUM *num, const BIGNUM *divisor,
          210.              BN_CTX *ctx)
          211.   {

crypto/bn/bn_div.c:229:11: Call
          227.       }
          228.   
          229.       ret = bn_div_fixed_top(dv, rm, num, divisor, ctx);
                           ^
          230.   
          231.       if (ret) {

crypto/bn/bn_div.c:280:5: Call
            278.       bn_check_top(rm);
            279.   
            280.       BN_CTX_start(ctx);
                       ^
            281.       res = (dv == NULL) ? BN_CTX_get(ctx) : dv;
            282.       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_div.c:450:5: Call
            448.       if (rm != NULL)
            449.           bn_rshift_fixed_top(rm, snum, norm_shift);
            450.       BN_CTX_end(ctx);
                       ^
            451.       return 1;
            452.    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:274:1: <Offset trace>
272.   }
273.   
274. > static unsigned int BN_STACK_pop(BN_STACK *st)
275.   {
276.       return st->indexes[--(st->depth)];

crypto/bn/bn_ctx.c:274:1: Parameter `st->depth`
                272.   }
                273.   
                274. > static unsigned int BN_STACK_pop(BN_STACK *st)
                275.   {
                276.       return st->indexes[--(st->depth)];

crypto/bn/bn_ctx.c:274:1: <Length trace>
272.   }
273.   
274. > static unsigned int BN_STACK_pop(BN_STACK *st)
275.   {
276.       return st->indexes[--(st->depth)];

crypto/bn/bn_ctx.c:274:1: Parameter `*st->indexes`
                272.   }
                273.   
                274. > static unsigned int BN_STACK_pop(BN_STACK *st)
                275.   {
                276.       return st->indexes[--(st->depth)];

crypto/bn/bn_ctx.c:276:12: Array access: Offset: [-1, +oo] Size: [1, +oo] by call to `BN_mod_inverse` 
                274.   static unsigned int BN_STACK_pop(BN_STACK *st)
                275.   {
                276.       return st->indexes[--(st->depth)];
                                  ^
                277.   }
                278.   
