torvalds/linux
torvalds/linux
2
0
Fork 0
mirror of git://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git synced 2025-09-04 20:19:47 +08:00
Code

iio: accel: sca3300: fix uninitialized iio scan data

Browse Source 
Fix potential leak of uninitialized stack data to userspace by ensuring
that the `channels` array is zeroed before use.

Fixes: edeb67fbbf ("iio: accel: sca3300: use IIO_DECLARE_BUFFER_WITH_TS")
Signed-off-by: David Lechner <dlechner@baylibre.com>
Link: https://patch.msgid.link/20250723-iio-accel-sca3300-fix-uninitialized-iio-scan-data-v1-1-12dbfb3307b7@baylibre.com
Signed-off-by: Jonathan Cameron <Jonathan.Cameron@huawei.com>
This commit is contained in:
David Lechner 2025-07-23 10:29:12 -05:00 committed by Jonathan Cameron
parent 8f5ae30d69
commit 4e5b705cc6
1 changed files with 1 additions and 1 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

2
drivers/iio/accel/sca3300.c
View File

@ -477,7 +477,7 @@ static irqreturn_t sca3300_trigger_handler(int irq, void *p)
struct iio_dev *indio_dev = pf->indio_dev;
struct sca3300_data *data = iio_priv(indio_dev);
int bit, ret, val, i = 0;
IIO_DECLARE_BUFFER_WITH_TS(s16, channels, SCA3300_SCAN_MAX);
IIO_DECLARE_BUFFER_WITH_TS(s16, channels, SCA3300_SCAN_MAX) = { };
iio_for_each_active_channel(indio_dev, bit) {
ret = sca3300_read_reg(data, indio_dev->channels[bit].address, &val);