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timesyncd: consider too long packets as invalid
[elogind.git]
/
src
/
timesync
/
timesyncd-manager.c
diff --git
a/src/timesync/timesyncd-manager.c
b/src/timesync/timesyncd-manager.c
index 117ea8c98d83c495edb043e566951a5a7f25603f..bc35662481fb5d4b958cc929666c72a3e71ca5f9 100644
(file)
--- a/
src/timesync/timesyncd-manager.c
+++ b/
src/timesync/timesyncd-manager.c
@@
-525,7
+525,8
@@
static int manager_receive_response(sd_event_source *source, int fd, uint32_t re
return manager_connect(m);
}
return manager_connect(m);
}
- if (iov.iov_len < sizeof(struct ntp_msg)) {
+ /* Too short or too long packet? */
+ if (iov.iov_len < sizeof(struct ntp_msg) || (msghdr.msg_flags & MSG_TRUNC)) {
log_warning("Invalid response from server. Disconnecting.");
return manager_connect(m);
}
log_warning("Invalid response from server. Disconnecting.");
return manager_connect(m);
}