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| author |   YueHaibing <yuehaibing@huawei.com> | 2019-01-30 18:30:51 +0800 |
|---|---|---|
| committer |   Greg Kroah-Hartman <gregkh@linuxfoundation.org> | 2019-01-30 12:03:58 +0100 |
| commit | 7dd50e205b3348dc7784efbdf85723551de64a25 (patch) | |
| tree | f26906aae84b94d82a1e1a785478ab0ca6655f14 /drivers/tty/ipwireless/hardware.c | |
| parent | serial: mps2-uart: support combined irq (diff) | |
| download | linux-dev-7dd50e205b3348dc7784efbdf85723551de64a25.tar.xz linux-dev-7dd50e205b3348dc7784efbdf85723551de64a25.zip | |
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/ipwireless/hardware.c')
| -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); /* |