diff options
| author | YueHaibing <yuehaibing@huawei.com> | 2019-01-30 13:30:51 +0300 |
|---|---|---|
| committer | Greg Kroah-Hartman <gregkh@linuxfoundation.org> | 2019-01-30 14:03:58 +0300 |
| commit | 7dd50e205b3348dc7784efbdf85723551de64a25 (patch) | |
| tree | f26906aae84b94d82a1e1a785478ab0ca6655f14 /drivers/tty | |
| parent | 775ea4ea2fd9a4554c5c01fcc5e53da2308e6f35 (diff) | |
| download | linux-7dd50e205b3348dc7784efbdf85723551de64a25.tar.xz | |
tty: ipwireless: Fix potential NULL pointer dereference
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>
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 b0baa4ce10f9..6bbf35682d53 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; ver_packet->header.length = sizeof(struct tl_setup_get_version_qry); /* |