mirrors/linux
2
0
Fork 0
mirror of https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git synced 2026-05-15 17:51:41 -04:00
Code Issues Packages Projects Releases Wiki Activity

iio: adc: rockchip_saradc: fix information leak in triggered buffer

Browse Source 
The 'data' local struct is used to push data to user space from a
triggered buffer, but it does not set values for inactive channels, as
it only uses iio_for_each_active_channel() to assign new values.

Initialize the struct to zero before using it to avoid pushing
uninitialized information to userspace.

Cc: stable@vger.kernel.org
Fixes: 4e130dc7b4 ("iio: adc: rockchip_saradc: Add support iio buffers")
Signed-off-by: Javier Carrasco <javier.carrasco.cruz@gmail.com>
Link: https://patch.msgid.link/20241125-iio_memset_scan_holes-v1-4-0cb6e98d895c@gmail.com
Signed-off-by: Jonathan Cameron <Jonathan.Cameron@huawei.com>
This commit is contained in:
Javier Carrasco
2024-11-25 22:16:12 +01:00
committed by Jonathan Cameron
parent 6ae053113f
commit 3872459136
1 changed files with 2 additions and 0 deletions
Download Patch File Download Diff File Expand all files Collapse all files

2
drivers/iio/adc/rockchip_saradc.c
View File

@@ -368,6 +368,8 @@ static irqreturn_t rockchip_saradc_trigger_handler(int irq, void *p)
int ret;
int i, j = 0;
memset(&data, 0, sizeof(data));
mutex_lock(&info->lock);
iio_for_each_active_channel(i_dev, i) {