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Fix: don't dereference NULL pointers
[lttng-ust.git]
/
liblttng-ust-comm
/
lttng-ust-comm.c
diff --git
a/liblttng-ust-comm/lttng-ust-comm.c
b/liblttng-ust-comm/lttng-ust-comm.c
index bbc59fc2f986b26bd582212005b0e48c60f3a0ec..d213770f7a25f69059810d14d5f12569636cba2b 100644
(file)
--- a/
liblttng-ust-comm/lttng-ust-comm.c
+++ b/
liblttng-ust-comm/lttng-ust-comm.c
@@
-377,6
+377,8
@@
ssize_t ustcomm_send_fds_unix_sock(int sock, int *fds, size_t nb_fd)
msg.msg_controllen = CMSG_LEN(sizeof_fds);
cmptr = CMSG_FIRSTHDR(&msg);
+ if (!cmptr)
+ return -EINVAL;
cmptr->cmsg_level = SOL_SOCKET;
cmptr->cmsg_type = SCM_RIGHTS;
cmptr->cmsg_len = CMSG_LEN(sizeof_fds);
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