| Date | Thu, 01 Jul 2010 10:42:53 -0700 | From | Greg KH <> | Subject | [083/200] powerpc/oprofile: fix potential buffer overrun in op_model_cell.c |
| |
2.6.34-stable review patch. If anyone has any objections, please let me know.
------------------
From: Denis Kirjanov <dkirjanov@hera.kernel.org>
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>
--- arch/powerpc/oprofile/op_model_cell.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-)
--- 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];
|