[PATCH v2] staging: rtlwifi: Fix potential NULL pointer dereference of kzalloc
Aditya Pakki
pakki001 at umn.edu
Tue Mar 19 20:15:08 UTC 2019
phydm.internal is allocated using kzalloc which is used multiple
times without a check for NULL pointer. This patch avoids such a
scenario.
--
v1: Patch collision with different things, fix as per Greg
Signed-off-by: Aditya Pakki <pakki001 at umn.edu>
---
drivers/staging/rtlwifi/phydm/rtl_phydm.c | 2 ++
1 file changed, 2 insertions(+)
diff --git a/drivers/staging/rtlwifi/phydm/rtl_phydm.c b/drivers/staging/rtlwifi/phydm/rtl_phydm.c
index 9930ed954abb..a7932706f286 100644
--- a/drivers/staging/rtlwifi/phydm/rtl_phydm.c
+++ b/drivers/staging/rtlwifi/phydm/rtl_phydm.c
@@ -180,6 +180,8 @@ static int rtl_phydm_init_priv(struct rtl_priv *rtlpriv,
rtlpriv->phydm.internal =
kzalloc(sizeof(struct phy_dm_struct), GFP_KERNEL);
+ if (!rtlpriv->phydm.internal)
+ return -ENOMEM;
_rtl_phydm_init_com_info(rtlpriv, ic, params);
--
2.17.1
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