1 From 1e24c54da257ab93cff5826be8a793b014a5dc9c Mon Sep 17 00:00:00 2001
2 From: Hauke Mehrtens <hauke@hauke-m.de>
3 Date: Mon, 21 Nov 2022 01:22:01 +0100
4 Subject: ca8210: Fix crash by zero initializing data
6 The struct cas_control embeds multiple generic SPI structures and we
7 have to make sure these structures are initialized to default values.
8 This driver does not set all attributes. When using kmalloc before some
9 attributes were not initialized and contained random data which caused
10 random crashes at bootup.
12 Fixes: ded845a781a5 ("ieee802154: Add CA8210 IEEE 802.15.4 device driver")
13 Signed-off-by: Hauke Mehrtens <hauke@hauke-m.de>
14 Link: https://lore.kernel.org/r/20221121002201.1339636-1-hauke@hauke-m.de
15 Signed-off-by: Stefan Schmidt <stefan@datenfreihafen.org>
17 drivers/net/ieee802154/ca8210.c | 2 +-
18 1 file changed, 1 insertion(+), 1 deletion(-)
20 --- a/drivers/net/ieee802154/ca8210.c
21 +++ b/drivers/net/ieee802154/ca8210.c
22 @@ -926,7 +926,7 @@ static int ca8210_spi_transfer(
24 dev_dbg(&spi->dev, "%s called\n", __func__);
26 - cas_ctl = kmalloc(sizeof(*cas_ctl), GFP_ATOMIC);
27 + cas_ctl = kzalloc(sizeof(*cas_ctl), GFP_ATOMIC);