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| author | Ian Abbott <abbotti@mev.co.uk> | 2012-09-24 17:20:52 +0100 |
|---|---|---|
| committer | Greg Kroah-Hartman <gregkh@linuxfoundation.org> | 2012-10-07 08:32:24 -0700 |
| commit | b5697de62b79060f59a5d7780aa4c16fdcfaa929 (patch) | |
| tree | 722c7f11ac858994bdd241b1f08f9761239e669d | |
| parent | 28675586f391fc14960de13c63359b25542ddec4 (diff) | |
| download | linux-3.10-b5697de62b79060f59a5d7780aa4c16fdcfaa929.tar.gz linux-3.10-b5697de62b79060f59a5d7780aa4c16fdcfaa929.tar.bz2 linux-3.10-b5697de62b79060f59a5d7780aa4c16fdcfaa929.zip | |
staging: comedi: s626: don't dereference insn->data
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 <abbotti@mev.co.uk>
Reviewed-by: H Hartley Sweeten <hsweeten@visionengravers.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
| -rw-r--r-- | drivers/staging/comedi/drivers/s626.c | 2 |
1 files changed, 1 insertions, 1 deletions
diff --git a/drivers/staging/comedi/drivers/s626.c b/drivers/staging/comedi/drivers/s626.c index 23fc64b9988..c72128f30f1 100644 --- a/drivers/staging/comedi/drivers/s626.c +++ b/drivers/staging/comedi/drivers/s626.c @@ -2370,7 +2370,7 @@ static int s626_enc_insn_config(struct comedi_device *dev, /* (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)); |