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| author | Jan Beulich <[email protected]> | 2012-09-07 06:54:52 +0000 |
|---|---|---|
| committer | Ingo Molnar <[email protected]> | 2012-09-07 08:56:02 +0000 |
| commit | d4c9dbc61fe0ca042b835c6f234af12fa5f18310 (patch) | |
| tree | ea2e11e59de9492a7984fc9681da99b1e4239881 /fs/proc/array.c | |
| parent | x86, cpu: Preset default tlb_flushall_shift on AMD (diff) | |
| download | kernel-d4c9dbc61fe0ca042b835c6f234af12fa5f18310.tar.gz kernel-d4c9dbc61fe0ca042b835c6f234af12fa5f18310.zip | |
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 <[email protected]>
Cc: Alex Shi <[email protected]>
Link: http://lkml.kernel.org/r/[email protected]
Signed-off-by: Ingo Molnar <[email protected]>
Diffstat (limited to 'fs/proc/array.c')
0 files changed, 0 insertions, 0 deletions