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| author | YueHaibing <yuehaibing@huawei.com> | 2019-01-30 13:30:51 +0300 |
|---|---|---|
| committer | Greg Kroah-Hartman <gregkh@linuxfoundation.org> | 2020-01-29 12:21:39 +0300 |
| commit | 938d29820972c81b0be36a362900825ec3d88c62 (patch) | |
| tree | b617c204974f77d9ba5fe81f48ebc7bc05687dd5 | |
| parent | fb1778eb8031a1c08f929737ed40a197bcbc35c0 (diff) | |
| download | linux-938d29820972c81b0be36a362900825ec3d88c62.tar.xz | |
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>
| -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 ad7031a4f3c4..454cdc6f2c05 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); /* |