diff options
| author | YueHaibing <yuehaibing@huawei.com> | 2019-01-30 18:30:51 +0800 |
|---|---|---|
| committer | Greg Kroah-Hartman <gregkh@linuxfoundation.org> | 2020-01-29 10:24:13 +0100 |
| commit | 33e2aa316ddc1ccd4d77cfdddfd05f4b84374a80 (patch) | |
| tree | 320356bd158ca7a367949ca673a1fb3d0187aa44 /drivers/tty | |
| parent | e6f4125d712fd8bb0039e90d6fa9ba33f73aa7e8 (diff) | |
tty: ipwireless: Fix potential NULL pointer dereference
[ Upstream commit 7dd50e205b3348dc7784efbdf85723551de64a25 ]
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>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Signed-off-by: Sasha Levin <sashal@kernel.org>
Diffstat (limited to 'drivers/tty')
| -rw-r--r-- | drivers/tty/ipwireless/hardware.c | 2 |
1 files changed, 2 insertions, 0 deletions
diff --git a/drivers/tty/ipwireless/hardware.c b/drivers/tty/ipwireless/hardware.c index df0204b6148f..4417f7568422 100644 --- a/drivers/tty/ipwireless/hardware.c +++ b/drivers/tty/ipwireless/hardware.c @@ -1515,6 +1515,8 @@ 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; ver_packet->header.length = sizeof(struct tl_setup_get_version_qry); /* |