MIRRORS/linux-yocto
1
0
Fork 0
mirror of git://git.yoctoproject.org/linux-yocto.git synced 2025-10-22 23:13:01 +02:00
Code Issues Actions Packages Projects Releases Wiki Activity

iio: adc: ad7923: Fix buffer overflow for tx_buf and ring_xfer

Browse Source 
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: 851644a60d ("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>
This commit is contained in:
Nuno Sa 2024-10-29 13:46:37 +00:00 committed by Jonathan Cameron
parent fa40763144
commit 3a4187ec45
1 changed files with 2 additions and 2 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

4
drivers/iio/adc/ad7923.c
View File

@ -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 {