Ubuntu
linux-source-2.6.15 package

  1. Bug #137978
  2. Comment #32

Comment 32 for bug 137978

Revision history for this message
Colin Ian King (colin-king) wrote :

SRU Justification:

Impact: Running wine applications from a FAT filesystem causes the wine
process to get stuck in a kernel "D" state and cannot be killed. This
prevents a user from unmounting the FAT filesystem.

Fix: Replace a typo in fat_ioctl_readdir() introduced during
CVE-2007-2878, where the second semaphore down() should in fact be an
up().

Testcase: Without the patch one can trip the bug by:

1. Mount any FAT filesystem
2. Copy some file.exe file to it.
3. Run: wine /media/fattest/file.exe
4. Wine hangs and cannot be killed.

With the patch, this works. This has been tested by Lei Zhang (message 12 above) and by
myself (message 11).