This is a note to let you know that I've just added the patch titled
iio: adc: ads124: avoid buffer overflow
to my staging git tree which can be found at git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/staging.git in the staging-linus branch.
The patch will show up in the next release of the linux-next tree (usually sometime within the next 24 hours during the week.)
The patch will hopefully also be merged in Linus's tree for the next -rc kernel release.
If you have any questions about this process, please let me know.
From 0db8aa49a97e7f40852a64fd35abcc1292a7c365 Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?Vincent=20Stehl=C3=A9?= vincent.stehle@laposte.net Date: Sun, 31 Mar 2019 20:54:23 +0200 Subject: iio: adc: ads124: avoid buffer overflow MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit
When initializing the priv->data array starting from index 1, there is one less element to consider than when initializing the full array.
Fixes: e717f8c6dfec8f76 ("iio: adc: Add the TI ads124s08 ADC code") Signed-off-by: Vincent Stehlé vincent.stehle@laposte.net Reviewed-by: Mukesh Ojha mojha@codeaurora.org Reviewed-by: Dan Murphy dmurphy@ti.com Cc: Stable@vger.kernel.org Signed-off-by: Jonathan Cameron Jonathan.Cameron@huawei.com --- drivers/iio/adc/ti-ads124s08.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-)
diff --git a/drivers/iio/adc/ti-ads124s08.c b/drivers/iio/adc/ti-ads124s08.c index 53f17e4f2f23..552c2be8d87a 100644 --- a/drivers/iio/adc/ti-ads124s08.c +++ b/drivers/iio/adc/ti-ads124s08.c @@ -202,7 +202,7 @@ static int ads124s_read(struct iio_dev *indio_dev, unsigned int chan) };
priv->data[0] = ADS124S08_CMD_RDATA; - memset(&priv->data[1], ADS124S08_CMD_NOP, sizeof(priv->data)); + memset(&priv->data[1], ADS124S08_CMD_NOP, sizeof(priv->data) - 1);
ret = spi_sync_transfer(priv->spi, t, ARRAY_SIZE(t)); if (ret < 0)