diff options
| author | Nuno Sa <nuno.sa@analog.com> | 2024-10-29 13:46:37 +0000 |
|---|---|---|
| committer | Jonathan Cameron <Jonathan.Cameron@huawei.com> | 2024-10-31 21:02:07 +0000 |
| commit | 3a4187ec454e19903fd15f6e1825a4b84e59a4cd (patch) | |
| tree | c268c787872826b9859c2516a4d8039a80951752 | |
| parent | fa4076314480bcb2bb32051027735b1cde07eea2 (diff) | |
iio: adc: ad7923: Fix buffer overflow for tx_buf and ring_xfer
The AD7923 was updated to support devices with 8 channels, but the size
of tx_buf and ring_xfer was not increased accordingly, leading to a
potential buffer overflow in ad7923_update_scan_mode().
Fixes: 851644a60d20 ("iio: adc: ad7923: Add support for the ad7908/ad7918/ad7928")
Cc: stable@vger.kernel.org
Signed-off-by: Nuno Sa <nuno.sa@analog.com>
Signed-off-by: Zicheng Qu <quzicheng@huawei.com>
Link: https://patch.msgid.link/20241029134637.2261336-1-quzicheng@huawei.com
Signed-off-by: Jonathan Cameron <Jonathan.Cameron@huawei.com>
| -rw-r--r-- | drivers/iio/adc/ad7923.c | 4 |
1 files changed, 2 insertions, 2 deletions
diff --git a/drivers/iio/adc/ad7923.c b/drivers/iio/adc/ad7923.c index 09680015a7ab..acc44cb34f82 100644 --- a/drivers/iio/adc/ad7923.c +++ b/drivers/iio/adc/ad7923.c @@ -48,7 +48,7 @@ struct ad7923_state { struct spi_device *spi; - struct spi_transfer ring_xfer[5]; + struct spi_transfer ring_xfer[9]; struct spi_transfer scan_single_xfer[2]; struct spi_message ring_msg; struct spi_message scan_single_msg; @@ -64,7 +64,7 @@ struct ad7923_state { * Length = 8 channels + 4 extra for 8 byte timestamp */ __be16 rx_buf[12] __aligned(IIO_DMA_MINALIGN); - __be16 tx_buf[4]; + __be16 tx_buf[8]; }; struct ad7923_chip_info { |