[Bug 1105758] [NEW] On my PC, gcry_cipher_encrypt() doesn't release all x87 FPU data registers .

[Mitsutoshi NAKANO]

Public bug reported:

1)
Description:    Xubuntu 12.10 desktop i386
Release:        12.10
PC: Sony PCG-SRX7S/P Memory 512 M byte http://www.sony.jp/products/biz/vaio/PCG-SRX7S_P/spec.html
Chipset: Intel 815EM
$ cat /proc/cpuinfo
processor       : 0
vendor_id       : GenuineIntel
cpu family      : 6
model           : 11
model name      : Mobile Intel(R) Pentium(R) III CPU - M   900MHz
stepping        : 4
microcode       : 0x2
cpu MHz         : 500.000
cache size      : 512 KB
fdiv_bug        : no
hlt_bug         : no
f00f_bug        : no
coma_bug        : no
fpu             : yes
fpu_exception   : yes
cpuid level     : 2
wp              : yes
flags           : fpu vme de pse tsc msr pae mce cx8 sep mtrr pge mca cmov pse36 mmx fxsr sse up
bogomips        : 993.64
clflush size    : 32
cache_alignment : 32
address sizes   : 36 bits physical, 32 bits virtual
power management:
$ uname -a
Linux loghost 3.5.0-22-generic #34-Ubuntu SMP Tue Jan 8 21:41:11 UTC 2013 i686 i686 i686 GNU/Linux


2)
libgcrypt11 1.5.0-3ubuntu1
gnome-keyring 3.6.1-0ubuntu1

3) What you expected to happen
$apt-get -b source gnome-keyring
$cd gnome-keyring-3.6.1/
$make -k check | tee make-k-check2.txt
	→all check OK

4) What happened instead
	→ but /gnome2-store/import/pkcs12: was FAIL on the PC .
See also https://dl.dropbox.com/u/86335040/make-k-check2.txt .


5) I analyzed the gnome-keyring program. 
So I found that gcry_cipher_encrypt() doesn't release all x87 FPU data registers .
Then -nan goes into a variable subsequent processing.

This problem found on the test of /gnome2-store/import/pkcs12 on
gnome-keyring-3.6.1,
function is encrypt_buffer() in gnome-keyring-3.6.1/pkcs11/gnome2-store/gkm-gnome2-file.c .

I wrote a reappearance program .
https://dl.dropbox.com/u/86335040/bug.tar.gz .
Please check it, and please fix this problem


See also https://forums.ubuntulinux.jp/viewtopic.php?id=14643 
and http://d.hatena.ne.jp/Itisango/searchdiary?word=%2A%5Bgnome-keyring%5D .

Thanks .

** Affects: libgcrypt11 (Ubuntu)
     Importance: Undecided
         Status: New


** Tags: fpu gnome-keyring libgcrypt11

-- 
You received this bug notification because you are a member of Ubuntu
Foundations Bugs, which is subscribed to libgcrypt11 in Ubuntu.
https://bugs.launchpad.net/bugs/1105758

Title:
  On my PC, gcry_cipher_encrypt() doesn't release all x87 FPU data
  registers .

Status in “libgcrypt11” package in Ubuntu:
  New

Bug description:
  1)
  Description:    Xubuntu 12.10 desktop i386
  Release:        12.10
  PC: Sony PCG-SRX7S/P Memory 512 M byte http://www.sony.jp/products/biz/vaio/PCG-SRX7S_P/spec.html
  Chipset: Intel 815EM
  $ cat /proc/cpuinfo
  processor       : 0
  vendor_id       : GenuineIntel
  cpu family      : 6
  model           : 11
  model name      : Mobile Intel(R) Pentium(R) III CPU - M   900MHz
  stepping        : 4
  microcode       : 0x2
  cpu MHz         : 500.000
  cache size      : 512 KB
  fdiv_bug        : no
  hlt_bug         : no
  f00f_bug        : no
  coma_bug        : no
  fpu             : yes
  fpu_exception   : yes
  cpuid level     : 2
  wp              : yes
  flags           : fpu vme de pse tsc msr pae mce cx8 sep mtrr pge mca cmov pse36 mmx fxsr sse up
  bogomips        : 993.64
  clflush size    : 32
  cache_alignment : 32
  address sizes   : 36 bits physical, 32 bits virtual
  power management:
  $ uname -a
  Linux loghost 3.5.0-22-generic #34-Ubuntu SMP Tue Jan 8 21:41:11 UTC 2013 i686 i686 i686 GNU/Linux

  
  2)
  libgcrypt11 1.5.0-3ubuntu1
  gnome-keyring 3.6.1-0ubuntu1

  3) What you expected to happen
  $apt-get -b source gnome-keyring
  $cd gnome-keyring-3.6.1/
  $make -k check | tee make-k-check2.txt
  	→all check OK

  4) What happened instead
  	→ but /gnome2-store/import/pkcs12: was FAIL on the PC .
  See also https://dl.dropbox.com/u/86335040/make-k-check2.txt .

  
  5) I analyzed the gnome-keyring program. 
  So I found that gcry_cipher_encrypt() doesn't release all x87 FPU data registers .
  Then -nan goes into a variable subsequent processing.

  This problem found on the test of /gnome2-store/import/pkcs12 on
  gnome-keyring-3.6.1,
  function is encrypt_buffer() in gnome-keyring-3.6.1/pkcs11/gnome2-store/gkm-gnome2-file.c .

  I wrote a reappearance program .
  https://dl.dropbox.com/u/86335040/bug.tar.gz .
  Please check it, and please fix this problem

  
  See also https://forums.ubuntulinux.jp/viewtopic.php?id=14643 
  and http://d.hatena.ne.jp/Itisango/searchdiary?word=%2A%5Bgnome-keyring%5D .

  Thanks .

To manage notifications about this bug go to:
https://bugs.launchpad.net/ubuntu/+source/libgcrypt11/+bug/1105758/+subscriptions