3.2-stable review patch. If anyone has any objections, please let me know.
------------------ From: Dan Carpenter <dan.carpen...@oracle.com> commit 5b3900cd409466c0070b234d941650685ad0c791 upstream. We fixed a bunch of integer overflows in timekeeping code during the 3.6 cycle. I did an audit based on that and found this potential overflow. Signed-off-by: Dan Carpenter <dan.carpen...@oracle.com> Acked-by: John Stultz <johns...@us.ibm.com> Link: http://lkml.kernel.org/r/20121009071823.GA19159@elgon.mountain Signed-off-by: Thomas Gleixner <t...@linutronix.de> [bwh: Backported to 3.2: adjust context; use timekeeper.raw_interval] Signed-off-by: Ben Hutchings <b...@decadent.org.uk> --- kernel/time/timekeeping.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) --- a/kernel/time/timekeeping.c +++ b/kernel/time/timekeeping.c @@ -992,7 +992,7 @@ static cycle_t logarithmic_accumulation( } /* Accumulate raw time */ - raw_nsecs = timekeeper.raw_interval << shift; + raw_nsecs = (u64)timekeeper.raw_interval << shift; raw_nsecs += raw_time.tv_nsec; if (raw_nsecs >= NSEC_PER_SEC) { u64 raw_secs = raw_nsecs; -- To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majord...@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/
