3.6-stable review patch. If anyone has any objections, please let me know.
------------------
From: Ian Abbott <abbo...@mev.co.uk>
commit b655c2c4782ed3e2e71d2608154e295a3e860311 upstream.
`s626_enc_insn_config()` is incorrectly dereferencing `insn->data` which
is a pointer to user memory. It should be dereferencing the separate
`data` parameter that points to a copy of the data in kernel memory.
Signed-off-by: Ian Abbott <abbo...@mev.co.uk>
Reviewed-by: H Hartley Sweeten <hswee...@visionengravers.com>
Signed-off-by: Greg Kroah-Hartman <gre...@linuxfoundation.org>
---
drivers/staging/comedi/drivers/s626.c | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)
--- a/drivers/staging/comedi/drivers/s626.c
+++ b/drivers/staging/comedi/drivers/s626.c
@@ -1868,7 +1868,7 @@ static int s626_enc_insn_config(struct c
/* (data==NULL) ? (Preloadvalue=0) : (Preloadvalue=data[0]); */
k->SetMode(dev, k, Setup, TRUE);
- Preload(dev, k, *(insn->data));
+ Preload(dev, k, data[0]);
k->PulseIndex(dev, k);
SetLatchSource(dev, k, valueSrclatch);
k->SetEnable(dev, k, (uint16_t) (enab != 0));
--
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