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authorDenis Kirjanov <dkirjanov@hera.kernel.org>2010-06-01 15:43:34 -0400
committerRobert Richter <robert.richter@amd.com>2010-06-07 11:18:56 +0200
commit238c1a78c957f3dc7cb848b161dcf4805793ed56 (patch)
tree4808d597025d5eceec474deab9741038aa52ca2e /arch/powerpc/oprofile/op_model_cell.c
parent58cc1a9e3b11a84e66c4d3a4cc9073f2cb0ecabb (diff)
downloadlinaro-lsk-238c1a78c957f3dc7cb848b161dcf4805793ed56.tar.gz
powerpc/oprofile: fix potential buffer overrun in op_model_cell.c
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> Cc: stable@kernel.org Signed-off-by: Robert Richter <robert.richter@amd.com>
Diffstat (limited to 'arch/powerpc/oprofile/op_model_cell.c')
-rw-r--r--arch/powerpc/oprofile/op_model_cell.c2
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 2c9e5226729..7fd90d02d8c 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];