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 11:22:21 -0700 |
| commit | e0d3a4aeaff41e8cac4fc416fda9978610ff9f91 (patch) | |
| tree | b0e8ebac73bc3e48fef8b26e80152cd5d9642dac /arch | |
| parent | b8504b8d34bf036b952c3f3b0f5cd5864d5f42e5 (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 2c9e52267292..7fd90d02d8c6 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]; |