* [PATCH -next] tty: ipwireless: Fix potential NULL pointer dereference
@ 2019-01-30 10:26 YueHaibing
2019-01-30 10:28 ` YueHaibing
0 siblings, 1 reply; 2+ messages in thread
From: YueHaibing @ 2019-01-30 10:26 UTC (permalink / raw)
To: dsterba, gregkh, jslaby; +Cc: linux-kernel, jikos, YueHaibing
There is a potential NULL pointer dereference in case
alloc_ctrl_packet() fails and returns NULL.
Fixes: 099dc4fb6265 ("ipwireless: driver for PC Card 3G/UMTS modem")
Signed-off-by: YueHaibing <yuehaibing@huawei.com>
---
drivers/tty/ipwireless/hardware.c | 2 ++
1 file changed, 2 insertions(+)
diff --git a/drivers/tty/ipwireless/hardware.c b/drivers/tty/ipwireless/hardware.c
index b0baa4c..1e21ae3 100644
--- a/drivers/tty/ipwireless/hardware.c
+++ b/drivers/tty/ipwireless/hardware.c
@@ -1516,6 +1516,8 @@ static void ipw_send_setup_packet(struct ipw_hardware *hw)
sizeof(struct ipw_setup_get_version_query_packet),
ADDR_SETUP_PROT, TL_PROTOCOLID_SETUP,
TL_SETUP_SIGNO_GET_VERSION_QRY);
+ if (!ver_packet)
+ return -ENOMEM;
ver_packet->header.length = sizeof(struct tl_setup_get_version_qry);
/*
--
2.7.0
^ permalink raw reply related [flat|nested] 2+ messages in thread
* Re: [PATCH -next] tty: ipwireless: Fix potential NULL pointer dereference
2019-01-30 10:26 [PATCH -next] tty: ipwireless: Fix potential NULL pointer dereference YueHaibing
@ 2019-01-30 10:28 ` YueHaibing
0 siblings, 0 replies; 2+ messages in thread
From: YueHaibing @ 2019-01-30 10:28 UTC (permalink / raw)
To: dsterba, gregkh, jslaby; +Cc: linux-kernel, jikos
Pls ignore this, sorry.
On 2019/1/30 18:26, YueHaibing wrote:
> There is a potential NULL pointer dereference in case
> alloc_ctrl_packet() fails and returns NULL.
>
> Fixes: 099dc4fb6265 ("ipwireless: driver for PC Card 3G/UMTS modem")
> Signed-off-by: YueHaibing <yuehaibing@huawei.com>
> ---
> drivers/tty/ipwireless/hardware.c | 2 ++
> 1 file changed, 2 insertions(+)
>
> diff --git a/drivers/tty/ipwireless/hardware.c b/drivers/tty/ipwireless/hardware.c
> index b0baa4c..1e21ae3 100644
> --- a/drivers/tty/ipwireless/hardware.c
> +++ b/drivers/tty/ipwireless/hardware.c
> @@ -1516,6 +1516,8 @@ static void ipw_send_setup_packet(struct ipw_hardware *hw)
> sizeof(struct ipw_setup_get_version_query_packet),
> ADDR_SETUP_PROT, TL_PROTOCOLID_SETUP,
> TL_SETUP_SIGNO_GET_VERSION_QRY);
> + if (!ver_packet)
> + return -ENOMEM;
> ver_packet->header.length = sizeof(struct tl_setup_get_version_qry);
>
> /*
>
^ permalink raw reply [flat|nested] 2+ messages in thread
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