diff options
| author | Hauke Mehrtens <hauke@hauke-m.de> | 2022-11-20 21:35:54 +0100 |
|---|---|---|
| committer | Hauke Mehrtens <hauke@hauke-m.de> | 2022-12-06 23:29:42 +0100 |
| commit | 282dd271ad73892fbe57062a62f4db5d09a0550b (patch) | |
| tree | 1e77ab065d1da4f9e42dde22a33fc276909a9d73 /target/linux/generic | |
| parent | 1a0f2c3a3ecb19f65bdc269818ed373958d032e6 (diff) | |
| download | upstream-282dd271ad73892fbe57062a62f4db5d09a0550b.tar.gz upstream-282dd271ad73892fbe57062a62f4db5d09a0550b.tar.bz2 upstream-282dd271ad73892fbe57062a62f4db5d09a0550b.zip | |
kernel: ca8210: Fix crash by zero initializing data
This fixes crashes at bootup on pistachio.
Signed-off-by: Hauke Mehrtens <hauke@hauke-m.de>
(cherry picked from commit 48025b8ac9c62ead241ea1daf1092993fb94aeac)
Diffstat (limited to 'target/linux/generic')
| -rw-r--r-- | target/linux/generic/pending-5.10/870-ca8210-Fix-crash-by-zero-initializing-data.patch | 30 |
1 files changed, 30 insertions, 0 deletions
diff --git a/target/linux/generic/pending-5.10/870-ca8210-Fix-crash-by-zero-initializing-data.patch b/target/linux/generic/pending-5.10/870-ca8210-Fix-crash-by-zero-initializing-data.patch new file mode 100644 index 0000000000..3f14988d9a --- /dev/null +++ b/target/linux/generic/pending-5.10/870-ca8210-Fix-crash-by-zero-initializing-data.patch @@ -0,0 +1,30 @@ +From 1e24c54da257ab93cff5826be8a793b014a5dc9c Mon Sep 17 00:00:00 2001 +From: Hauke Mehrtens <hauke@hauke-m.de> +Date: Mon, 21 Nov 2022 01:22:01 +0100 +Subject: ca8210: Fix crash by zero initializing data + +The struct cas_control embeds multiple generic SPI structures and we +have to make sure these structures are initialized to default values. +This driver does not set all attributes. When using kmalloc before some +attributes were not initialized and contained random data which caused +random crashes at bootup. + +Fixes: ded845a781a5 ("ieee802154: Add CA8210 IEEE 802.15.4 device driver") +Signed-off-by: Hauke Mehrtens <hauke@hauke-m.de> +Link: https://lore.kernel.org/r/20221121002201.1339636-1-hauke@hauke-m.de +Signed-off-by: Stefan Schmidt <stefan@datenfreihafen.org> +--- + drivers/net/ieee802154/ca8210.c | 2 +- + 1 file changed, 1 insertion(+), 1 deletion(-) + +--- a/drivers/net/ieee802154/ca8210.c ++++ b/drivers/net/ieee802154/ca8210.c +@@ -926,7 +926,7 @@ static int ca8210_spi_transfer( + + dev_dbg(&spi->dev, "%s called\n", __func__); + +- cas_ctl = kmalloc(sizeof(*cas_ctl), GFP_ATOMIC); ++ cas_ctl = kzalloc(sizeof(*cas_ctl), GFP_ATOMIC); + if (!cas_ctl) + return -ENOMEM; + |