On Wed, Apr 18, 2012 at 08:04:28PM +0200, Andy Polyakov via RT wrote:
> > I've had 2 users report a crash in RC4() on x86_64.  The
> > backtrace looks like:
> > #0  RC4 () at rc4-x86_64.s:343
> > #1  0x000000000000012d in ?? ()
> > #2  0x00000000000000df in ?? ()
> > #3  0x00000000020b5660 in ?? ()
> > #4  0x00007fc075f6a9c9 in rc4_hmac_md5_cipher (ctx=<optimized out>,
> >     out=0x20aae98 
> > ".\324\300\377AE'|#\242\300\233\025T\341\002}\237\242\240\273G\260\257\214z\321\001HK«RA\257HC0\"0\257N*1C/,$\252-N1&%&1\261\"/0C*'C\246-\"!/&C*\nb%
> >  SO\261\067\303\060,17^'*\260\063/\":C7+\261&\"'^1&%\246\061&- 
> > &0C\267+1&\"'^1\246%0C.6/7\252\"33&-'C\266-0&/& 7\303 
> > +*/'1&\255C-\".&03\242 
> > &C6*'3\257\066\060C/*07\316&;7&-'&\247C*R[-/&\265&/^RC ,\255"..., 
> > in=<optimized out>, len=0) at e_rc4_hmac_md5.c:163
> > #5  0x00007fc076272b8f in tls1_enc (s=0x209c120, send=1) at t1_enc.c:828
> > #6  0x00007fc076269e18 in do_ssl3_write (s=0x209c120, type=23,
> >     buf=0x209cf34 "2 OK [CAPABILITY IMAP4rev1 LITERAL+ SASL-IR 
> > LOGIN-REFERRALS ID ENABLE IDLE SORT SORT=DISPLAY THREAD=REFERENCES 
> > THREAD=REFS MULTIAPPEND UNSELECT CHILDREN NAMESPACE UIDPLUS LIST-EXTENDED 
> > I18NLEVEL=1 CON"..., len=285, create_empty_fragment=0) at s3_pkt.c:808
> > #7  0x00007fc07626a144 in ssl3_write_bytes (s=0x209c120, type=23, 
> > buf_=0x209cf34, len=<optimized out>) at s3_pkt.c:605
> > 
> > 
> > This looks simular to the AES problem with had, with a length of 0?
> > 
> > 
> > More details are at:
> > http://bugs.debian.org/666405
> 
> http://cvs.openssl.org/chngview?cn=22424 is combined patch.

This fails like this on non-i386/x86_64 arches:
../libcrypto.a(e_rc4_hmac_md5.o): In function `EVP_rc4_hmac_md5':
/build/buildd-openssl_1.0.1a-1-ia64-b35uCp/openssl-1.0.1a/crypto/evp/e_rc4_hmac_md5.c:294:
 undefined reference to `OPENSSL_ia32cap_P'
/build/buildd-openssl_1.0.1a-1-ia64-b35uCp/openssl-1.0.1a/crypto/evp/e_rc4_hmac_md5.c:294:
 undefined reference to `OPENSSL_ia32cap_P'



Kurt

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