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| author | Jan Beulich <JBeulich@suse.com> | 2012-09-07 06:54:52 (GMT) |
|---|---|---|
| committer | Ingo Molnar <mingo@kernel.org> | 2012-09-07 08:56:02 (GMT) |
| commit | d4c9dbc61fe0ca042b835c6f234af12fa5f18310 (patch) | |
| tree | ea2e11e59de9492a7984fc9681da99b1e4239881 /arch/x86/kernel | |
| parent | 057237bb35a605d795fd787868a1088705f26ee5 (diff) | |
| download | linux-fsl-qoriq-d4c9dbc61fe0ca042b835c6f234af12fa5f18310.tar.xz | |
x86/mm: Fix range check in tlbflush debugfs interface
Since the shift count settable there is used for shifting values
of type "unsigned long", its value must not match or exceed
BITS_PER_LONG (otherwise the shift operations are undefined).
Similarly, the value must not be negative (but -1 must be
permitted, as that's the value used to distinguish the case of
the fine grained flushing being disabled).
Signed-off-by: Jan Beulich <jbeulich@suse.com>
Cc: Alex Shi <alex.shi@intel.com>
Link: http://lkml.kernel.org/r/5049B65C020000780009990C@nat28.tlf.novell.com
Signed-off-by: Ingo Molnar <mingo@kernel.org>
Diffstat (limited to 'arch/x86/kernel')
0 files changed, 0 insertions, 0 deletions