crypto/rsa/rsa_oaep.c:183: error: INTEGER_OVERFLOW_L2
  ([0, +oo] - 1):unsigned32 by call to `constant_time_is_zero`.
Showing all 5 steps of the trace


crypto/rsa/rsa_oaep.c:114:1: Parameter `*from`
112.   }
113.   
114. > int RSA_padding_check_PKCS1_OAEP_mgf1(unsigned char *to, int tlen,
115.                                         const unsigned char *from, int flen,
116.                                         int num, const unsigned char *param,

crypto/rsa/rsa_oaep.c:183:12: Call
181.        * Optimal Asymmetric Encryption Padding (OAEP) [...]", CRYPTO 2001).
182.        */
183.       good = constant_time_is_zero(from[0]);
                  ^
184.   
185.       maskedseed = from + 1;

include/internal/constant_time_locl.h:164:1: <LHS trace>
162.   }
163.   
164. > static ossl_inline unsigned int constant_time_is_zero(unsigned int a)
165.   {
166.       return constant_time_msb(~a & (a - 1));

include/internal/constant_time_locl.h:164:1: Parameter `a`
  162.   }
  163.   
  164. > static ossl_inline unsigned int constant_time_is_zero(unsigned int a)
  165.   {
  166.       return constant_time_msb(~a & (a - 1));

include/internal/constant_time_locl.h:166:12: Binary operation: ([0, +oo] - 1):unsigned32 by call to `constant_time_is_zero` 
  164.   static ossl_inline unsigned int constant_time_is_zero(unsigned int a)
  165.   {
  166.       return constant_time_msb(~a & (a - 1));
                    ^
  167.   }
  168.   
