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Message-Id: <20100701173211.447760155@clark.site> Date: Thu, 01 Jul 2010 10:31:21 -0700 From: Greg KH <gregkh@...e.de> To: linux-kernel@...r.kernel.org, stable@...nel.org Cc: stable-review@...nel.org, torvalds@...ux-foundation.org, akpm@...ux-foundation.org, alan@...rguk.ukuu.org.uk, Denis Kirjanov <dkirjanov@...nel.org>, Robert Richter <robert.richter@....com> Subject: [patch 055/149] powerpc/oprofile: fix potential buffer overrun in op_model_cell.c 2.6.32-stable review patch. If anyone has any objections, please let us know. ------------------ From: Denis Kirjanov <dkirjanov@...a.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@...nel.org> Signed-off-by: Robert Richter <robert.richter@....com> Signed-off-by: Greg Kroah-Hartman <gregkh@...e.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]; -- To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majordomo@...r.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/
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