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author | Nate Case <ncase@xes-inc.com> | 2008-05-13 06:14:14 +1000 |
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committer | Paul Mackerras <paulus@samba.org> | 2008-05-15 20:49:52 +1000 |
commit | 9c8387afdc93f90bf0241411d44e011d8d5b76df (patch) | |
tree | 97611f22b5a627f5d6067aae0bff6c32247fb577 /arch | |
parent | 64e4566f6d590fbb284da061b9b664c2486dd2de (diff) | |
download | op-kernel-dev-9c8387afdc93f90bf0241411d44e011d8d5b76df.zip op-kernel-dev-9c8387afdc93f90bf0241411d44e011d8d5b76df.tar.gz |
[POWERPC] Fix uninitialized variable bug in copy_{to|from}_user
Calls to copy_to_user() or copy_from_user() can fail when copying N
bytes, where N is a constant less than 8, but not 1, 2, 4, or 8,
because 'ret' is not initialized and is only set if the size is 1,
2, 4 or 8, but is tested after the switch statement for any constant
size <= 8. This fixes it by initializing 'ret' to 1, causing the
code to fall through to the __copy_tofrom_user call for sizes other
than 1, 2, 4 or 8.
Signed-off-by: Dave Scidmore <dscidmore@xes-inc.com>
Signed-off-by: Nate Case <ncase@xes-inc.com>
Signed-off-by: Paul Mackerras <paulus@samba.org>
Diffstat (limited to 'arch')
0 files changed, 0 insertions, 0 deletions