crypto/rsa/rsa_sp800_56b_check.c:228: error: INTEGER_OVERFLOW_L2
  ([0, 3+max(0, `ctx->stack.depth`)] - 1):unsigned32 by call to `BN_div`.
Showing all 33 steps of the trace


crypto/rsa/rsa_sp800_56b_check.c:220:1: Parameter `ctx->stack.depth`
218.   
219.   /* return LCM(p-1, q-1) */
220. > int rsa_get_lcm(BN_CTX *ctx, const BIGNUM *p, const BIGNUM *q,
221.                   BIGNUM *lcm, BIGNUM *gcd, BIGNUM *p1, BIGNUM *q1,
222.                   BIGNUM *p1q1)

crypto/rsa/rsa_sp800_56b_check.c:226:15: Call
224.       return BN_sub(p1, p, BN_value_one())    /* p-1 */
225.              && BN_sub(q1, q, BN_value_one()) /* q-1 */
226.              && BN_mul(p1q1, p1, q1, ctx)     /* (p-1)(q-1) */
                     ^
227.              && BN_gcd(gcd, p1, q1, ctx)
228.              && BN_div(lcm, NULL, p1q1, gcd, ctx); /* LCM((p-1, q-1)) */

crypto/bn/bn_mul.c:497:1: Parameter `ctx->stack.depth`
  495.   #endif                          /* BN_RECURSION */
  496.   
  497. > int BN_mul(BIGNUM *r, const BIGNUM *a, const BIGNUM *b, BN_CTX *ctx)
  498.   {
  499.       int ret = bn_mul_fixed_top(r, a, b, ctx);

crypto/bn/bn_mul.c:499:15: Call
  497.   int BN_mul(BIGNUM *r, const BIGNUM *a, const BIGNUM *b, BN_CTX *ctx)
  498.   {
  499.       int ret = bn_mul_fixed_top(r, a, b, ctx);
                       ^
  500.   
  501.       bn_correct_top(r);

crypto/bn/bn_mul.c:507:1: Parameter `ctx->stack.depth`
    505.   }
    506.   
    507. > int bn_mul_fixed_top(BIGNUM *r, const BIGNUM *a, const BIGNUM *b, BN_CTX *ctx)
    508.   {
    509.       int ret = 0;

crypto/rsa/rsa_sp800_56b_check.c:227:15: Call
225.              && BN_sub(q1, q, BN_value_one()) /* q-1 */
226.              && BN_mul(p1q1, p1, q1, ctx)     /* (p-1)(q-1) */
227.              && BN_gcd(gcd, p1, q1, ctx)
                     ^
228.              && BN_div(lcm, NULL, p1q1, gcd, ctx); /* LCM((p-1, q-1)) */
229.   }

crypto/bn/bn_gcd.c:15:1: Parameter `ctx->stack.depth`
  13.   static BIGNUM *euclid(BIGNUM *a, BIGNUM *b);
  14.   
  15. > int BN_gcd(BIGNUM *r, const BIGNUM *in_a, const BIGNUM *in_b, BN_CTX *ctx)
  16.   {
  17.       BIGNUM *a, *b, *t;

crypto/bn/bn_gcd.c:23:5: Call
  21.       bn_check_top(in_b);
  22.   
  23.       BN_CTX_start(ctx);
            ^
  24.       a = BN_CTX_get(ctx);
  25.       b = BN_CTX_get(ctx);

crypto/bn/bn_ctx.c:171:1: Parameter `ctx->stack.depth`
    169.   }
    170.   
    171. > void BN_CTX_start(BN_CTX *ctx)
    172.   {
    173.       CTXDBG("ENTER BN_CTX_start()", ctx);

crypto/bn/bn_gcd.c:24:9: Call
  22.   
  23.       BN_CTX_start(ctx);
  24.       a = BN_CTX_get(ctx);
                ^
  25.       b = BN_CTX_get(ctx);
  26.       if (b == NULL)

crypto/bn/bn_ctx.c:202:1: Parameter `ctx->stack.depth`
    200.   }
    201.   
    202. > BIGNUM *BN_CTX_get(BN_CTX *ctx)
    203.   {
    204.       BIGNUM *ret;

crypto/bn/bn_gcd.c:25:9: Call
  23.       BN_CTX_start(ctx);
  24.       a = BN_CTX_get(ctx);
  25.       b = BN_CTX_get(ctx);
                ^
  26.       if (b == NULL)
  27.           goto err;

crypto/bn/bn_ctx.c:202:1: Parameter `ctx->stack.depth`
    200.   }
    201.   
    202. > BIGNUM *BN_CTX_get(BN_CTX *ctx)
    203.   {
    204.       BIGNUM *ret;

crypto/bn/bn_gcd.c:49:5: Call
  47.       ret = 1;
  48.    err:
  49.       BN_CTX_end(ctx);
            ^
  50.       bn_check_top(r);
  51.       return ret;

crypto/bn/bn_ctx.c:185:1: Parameter `ctx->stack.depth`
    183.   }
    184.   
    185. > void BN_CTX_end(BN_CTX *ctx)
    186.   {
    187.       CTXDBG("ENTER BN_CTX_end()", ctx);

crypto/rsa/rsa_sp800_56b_check.c:228:15: Call
226.              && BN_mul(p1q1, p1, q1, ctx)     /* (p-1)(q-1) */
227.              && BN_gcd(gcd, p1, q1, ctx)
228.              && BN_div(lcm, NULL, p1q1, gcd, ctx); /* LCM((p-1, q-1)) */
                     ^
229.   }
230.   

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:264:1: Parameter `ctx->stack.depth`
    262.    *       divisor's length is considered public;
    263.    */
    264. > int bn_div_fixed_top(BIGNUM *dv, BIGNUM *rm, const BIGNUM *num,
    265.                        const BIGNUM *divisor, BN_CTX *ctx)
    266.   {

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:171:1: Parameter `ctx->stack.depth`
      169.   }
      170.   
      171. > void BN_CTX_start(BN_CTX *ctx)
      172.   {
      173.       CTXDBG("ENTER BN_CTX_start()", ctx);

crypto/bn/bn_div.c:282:11: Call
    280.       BN_CTX_start(ctx);
    281.       res = (dv == NULL) ? BN_CTX_get(ctx) : dv;
    282.       tmp = BN_CTX_get(ctx);
                     ^
    283.       snum = BN_CTX_get(ctx);
    284.       sdiv = BN_CTX_get(ctx);

crypto/bn/bn_ctx.c:202:1: Parameter `ctx->stack.depth`
      200.   }
      201.   
      202. > BIGNUM *BN_CTX_get(BN_CTX *ctx)
      203.   {
      204.       BIGNUM *ret;

crypto/bn/bn_div.c:283:12: Call
    281.       res = (dv == NULL) ? BN_CTX_get(ctx) : dv;
    282.       tmp = BN_CTX_get(ctx);
    283.       snum = BN_CTX_get(ctx);
                      ^
    284.       sdiv = BN_CTX_get(ctx);
    285.       if (sdiv == NULL)

crypto/bn/bn_ctx.c:202:1: Parameter `ctx->stack.depth`
      200.   }
      201.   
      202. > BIGNUM *BN_CTX_get(BN_CTX *ctx)
      203.   {
      204.       BIGNUM *ret;

crypto/bn/bn_div.c:284:12: Call
    282.       tmp = BN_CTX_get(ctx);
    283.       snum = BN_CTX_get(ctx);
    284.       sdiv = BN_CTX_get(ctx);
                      ^
    285.       if (sdiv == NULL)
    286.           goto err;

crypto/bn/bn_ctx.c:202:1: Parameter `ctx->stack.depth`
      200.   }
      201.   
      202. > BIGNUM *BN_CTX_get(BN_CTX *ctx)
      203.   {
      204.       BIGNUM *ret;

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:185:1: Parameter `ctx->stack.depth`
      183.   }
      184.   
      185. > void BN_CTX_end(BN_CTX *ctx)
      186.   {
      187.       CTXDBG("ENTER BN_CTX_end()", ctx);

crypto/bn/bn_ctx.c:191:27: Call
      189.           ctx->err_stack--;
      190.       else {
      191.           unsigned int fp = BN_STACK_pop(&ctx->stack);
                                       ^
      192.           /* Does this stack frame have anything to release? */
      193.           if (fp < ctx->used)

crypto/bn/bn_ctx.c:266:1: <LHS trace>
264.   }
265.   
266. > static unsigned int BN_STACK_pop(BN_STACK *st)
267.   {
268.       return st->indexes[--(st->depth)];

crypto/bn/bn_ctx.c:266:1: Parameter `st->depth`
        264.   }
        265.   
        266. > static unsigned int BN_STACK_pop(BN_STACK *st)
        267.   {
        268.       return st->indexes[--(st->depth)];

crypto/bn/bn_ctx.c:268:12: Binary operation: ([0, 3+max(0, ctx->stack.depth)] - 1):unsigned32 by call to `BN_div` 
        266.   static unsigned int BN_STACK_pop(BN_STACK *st)
        267.   {
        268.       return st->indexes[--(st->depth)];
                          ^
        269.   }
        270.   
