michaelh/zephyr
1
0
Fork 0
Code Releases Activity

drivers: modem: ublox-sara-r4: Fix dereference before null check

Browse source 
Fixes #32916

Signed-off-by: Xavier Chapron <xavier.chapron@stimio.fr>
This commit is contained in:
Xavier Chapron 2021-03-17 09:43:44 +01:00 • committed by Kumar Gala
commit 30c9588aaa
1 changed files with 4 additions and 4 deletions
Download patch file Download diff file Expand all files Collapse all files

8
drivers/modem/ublox-sara-r4.c
View file

@ -314,6 +314,10 @@ static ssize_t send_socket_data(void *obj,
struct sockaddr *dst_addr = msg->msg_name;
size_t buf_len = 0;
if (!sock) {
return -EINVAL;
}
for (int i = 0; i < msg->msg_iovlen; i++) {
if (!msg->msg_iov[i].iov_base || msg->msg_iov[i].iov_len == 0) {
errno = EINVAL;
@ -331,10 +335,6 @@ static ssize_t send_socket_data(void *obj,
dst_addr = &sock->dst;
}
if (!sock) {
return -EINVAL;
}
/*
* Binary and ASCII mode allows sending MDM_MAX_DATA_LENGTH bytes to
* the socket in one command