[Pkg-openssl-devel] Bug#532059: libssl0.9.8: valgrind reports: Conditional jump or move depends on uninitialised value(s)

[Russell Coker]

On Sat, 6 Jun 2009, Kurt Roeckx <kurt at roeckx.be> wrote:
> > Here are some valgrind warnings.  It would be good if these could be
> > fixed even if they happen to be harmless so that they don't get in the
> > way of debugging applications that use libdkim and libssl.

I have attached the source to a dkim test program which triggers the valgrind 
error reports.  Run it with a single command-line parameter such as the 
following:
valgrind ./a.out test-msg.mbox

It will give the following errors:

==12454== Conditional jump or move depends on uninitialised value(s)
==12454==    at 0x4348A37: BN_mod_inverse 
(in /usr/lib/i686/cmov/libcrypto.so.0.9.8)
==12454==    by 0x434C920: BN_MONT_CTX_set 
(in /usr/lib/i686/cmov/libcrypto.so.0.9.8)
==12454==    by 0x434CC67: BN_MONT_CTX_set_locked 
(in /usr/lib/i686/cmov/libcrypto.so.0.9.8)
==12454==    by 0x43629DA: (within /usr/lib/i686/cmov/libcrypto.so.0.9.8)
==12454==    by 0x436398D: RSA_public_decrypt 
(in /usr/lib/i686/cmov/libcrypto.so.0.9.8)
==12454==    by 0x43647DC: RSA_verify 
(in /usr/lib/i686/cmov/libcrypto.so.0.9.8)
==12454==    by 0x438C3C6: EVP_VerifyFinal 
(in /usr/lib/i686/cmov/libcrypto.so.0.9.8)
==12454==    by 0x4037AC8: (within /usr/lib/libdkim.so.0d.1)
==12454==    by 0x402F01D: DKIMVerifyResults (in /usr/lib/libdkim.so.0d.1)
==12454==    by 0x8048B38: dkim_verify(char const*, int, unsigned char**, 
char***) (dkim-test.cpp:170)
==12454==    by 0x8049201: main (dkim-test.cpp:270)
==12454==
==12454== Conditional jump or move depends on uninitialised value(s)
==12454==    at 0x433F491: BN_div (in /usr/lib/i686/cmov/libcrypto.so.0.9.8)
==12454==    by 0x4345571: BN_nnmod (in /usr/lib/i686/cmov/libcrypto.so.0.9.8)
==12454==    by 0x434934A: BN_mod_inverse 
(in /usr/lib/i686/cmov/libcrypto.so.0.9.8)
==12454==    by 0x434C920: BN_MONT_CTX_set 
(in /usr/lib/i686/cmov/libcrypto.so.0.9.8)
==12454==    by 0x434CC67: BN_MONT_CTX_set_locked 
(in /usr/lib/i686/cmov/libcrypto.so.0.9.8)
==12454==    by 0x43629DA: (within /usr/lib/i686/cmov/libcrypto.so.0.9.8)
==12454==    by 0x436398D: RSA_public_decrypt 
(in /usr/lib/i686/cmov/libcrypto.so.0.9.8)
==12454==    by 0x43647DC: RSA_verify 
(in /usr/lib/i686/cmov/libcrypto.so.0.9.8)
==12454==    by 0x438C3C6: EVP_VerifyFinal 
(in /usr/lib/i686/cmov/libcrypto.so.0.9.8)
==12454==    by 0x4037AC8: (within /usr/lib/libdkim.so.0d.1)
==12454==    by 0x402F01D: DKIMVerifyResults (in /usr/lib/libdkim.so.0d.1)
==12454==    by 0x8048B38: dkim_verify(char const*, int, unsigned char**, 
char***) (dkim-test.cpp:170)
==12454==
==12454== Conditional jump or move depends on uninitialised value(s)
==12454==    at 0x433F491: BN_div (in /usr/lib/i686/cmov/libcrypto.so.0.9.8)
==12454==    by 0x434C982: BN_MONT_CTX_set 
(in /usr/lib/i686/cmov/libcrypto.so.0.9.8)
==12454==    by 0x434CC67: BN_MONT_CTX_set_locked 
(in /usr/lib/i686/cmov/libcrypto.so.0.9.8)
==12454==    by 0x43629DA: (within /usr/lib/i686/cmov/libcrypto.so.0.9.8)
==12454==    by 0x436398D: RSA_public_decrypt 
(in /usr/lib/i686/cmov/libcrypto.so.0.9.8)
==12454==    by 0x43647DC: RSA_verify 
(in /usr/lib/i686/cmov/libcrypto.so.0.9.8)
==12454==    by 0x438C3C6: EVP_VerifyFinal 
(in /usr/lib/i686/cmov/libcrypto.so.0.9.8)
==12454==    by 0x4037AC8: (within /usr/lib/libdkim.so.0d.1)
==12454==    by 0x402F01D: DKIMVerifyResults (in /usr/lib/libdkim.so.0d.1)
==12454==    by 0x8048B38: dkim_verify(char const*, int, unsigned char**, 
char***) (dkim-test.cpp:170)
==12454==    by 0x8049201: main (dkim-test.cpp:270)
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