diff options
| author | Denis Kirjanov <dkirjanov@hera.kernel.org> | 2010-06-01 15:43:34 -0400 |
|---|---|---|
| committer | Greg Kroah-Hartman <gregkh@suse.de> | 2010-07-05 11:10:44 -0700 |
| commit | 63592befd6212caabbe5f9517f64049d55ec67fb (patch) | |
| tree | fe93d31366b13119c00305571ca53e5733069041 /arch | |
| parent | 9cb49fbe22c79ee0fe111cef69e2485c269dd7ea (diff) | |
powerpc/oprofile: fix potential buffer overrun in op_model_cell.c
commit 238c1a78c957f3dc7cb848b161dcf4805793ed56 upstream.
Fix potential initial_lfsr buffer overrun.
Writing past the end of the buffer could happen when index == ENTRIES
Signed-off-by: Denis Kirjanov <dkirjanov@kernel.org>
Signed-off-by: Robert Richter <robert.richter@amd.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
Diffstat (limited to 'arch')
| -rw-r--r-- | arch/powerpc/oprofile/op_model_cell.c | 2 |
1 files changed, 1 insertions, 1 deletions
diff --git a/arch/powerpc/oprofile/op_model_cell.c b/arch/powerpc/oprofile/op_model_cell.c index ae06c6236d9c..c8fc4dc8f572 100644 --- a/arch/powerpc/oprofile/op_model_cell.c +++ b/arch/powerpc/oprofile/op_model_cell.c @@ -1077,7 +1077,7 @@ static int calculate_lfsr(int n) index = ENTRIES-1; /* make sure index is valid */ - if ((index > ENTRIES) || (index < 0)) + if ((index >= ENTRIES) || (index < 0)) index = ENTRIES-1; return initial_lfsr[index]; |