Kernel: 2.6.35-rc5-git1
Enlarging the buffer size via the MON_IOCT_RING_SIZE ioctl causes
general protection faults. It appears the culprit is an incorrect
argument to mon_free_buff: instead of passing the size of the current
buffer being freed, the size of the new buffer is passed.
--
Use the correct size argument to mon_free_buff when changing the size of
the buffer.
Signed-off-by: Steven Robertson <steven@xxxxxxxxx>
--- linux-2.6.35-rc5-git1/drivers/usb/mon/mon_bin.c.orig 2010-07-21 16:00:01.000000000 -0400
+++ linux-2.6.35-rc5-git1/drivers/usb/mon/mon_bin.c 2010-07-21 16:02:45.915228398 -0400
@@ -1009,7 +1009,7 @@ static int mon_bin_ioctl(struct file *fi
mutex_lock(&rp->fetch_lock);
spin_lock_irqsave(&rp->b_lock, flags);
- mon_free_buff(rp->b_vec, size/CHUNK_SIZE);
+ mon_free_buff(rp->b_vec, rp->b_size/CHUNK_SIZE);
kfree(rp->b_vec);
rp->b_vec = vec;
rp->b_size = size;
--
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