Messages in this thread Patch in this message | | | From | YueHaibing <> | Subject | [PATCH -next] mISDN: hfcsusb: Fix potential NULL pointer dereference | Date | Wed, 30 Jan 2019 18:19:02 +0800 |
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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
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