lkml.org 
[lkml]   [2019]   [Jan]   [30]   [last100]   RSS Feed
Views: [wrap][no wrap]   [headers]  [forward] 
 
Messages in this thread
Patch in this message
/
From
Subject[PATCH -next] mISDN: hfcsusb: Fix potential NULL pointer dereference
Date
There is a potential NULL pointer dereference in case
kzalloc() fails and returns NULL.

Fixes: 69f52adb2d53 ("mISDN: Add HFC USB driver")
Signed-off-by: YueHaibing <yuehaibing@huawei.com>
---
drivers/isdn/hardware/mISDN/hfcsusb.c | 2 ++
1 file changed, 2 insertions(+)

diff --git a/drivers/isdn/hardware/mISDN/hfcsusb.c b/drivers/isdn/hardware/mISDN/hfcsusb.c
index 124ff53..5660d5a 100644
--- a/drivers/isdn/hardware/mISDN/hfcsusb.c
+++ b/drivers/isdn/hardware/mISDN/hfcsusb.c
@@ -263,6 +263,8 @@ hfcsusb_ph_info(struct hfcsusb *hw)
int i;

phi = kzalloc(struct_size(phi, bch, dch->dev.nrbchan), GFP_ATOMIC);
+ if (!phi)
+ return;
phi->dch.ch.protocol = hw->protocol;
phi->dch.ch.Flags = dch->Flags;
phi->dch.state = dch->state;
--
2.7.0

\
 
 \ /
  Last update: 2019-01-30 11:20    [W:0.041 / U:6.292 seconds]
©2003-2018 Jasper Spaans|hosted at Digital Ocean and TransIP|Read the blog|Advertise on this site