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-rw-r--r--src/libudev/libudev-monitor.c10
1 files changed, 8 insertions, 2 deletions
diff --git a/src/libudev/libudev-monitor.c b/src/libudev/libudev-monitor.c
index 39258527e7..c48ac78908 100644
--- a/src/libudev/libudev-monitor.c
+++ b/src/libudev/libudev-monitor.c
@@ -643,6 +643,8 @@ retry:
return NULL;
}
if (buf.nlh.properties_off+32 > (size_t)buflen) {
+ log_debug("message smaller than expected (%u > %zd)",
+ buf.nlh.properties_off+32, buflen);
return NULL;
}
@@ -666,8 +668,10 @@ retry:
}
udev_device = udev_device_new_from_nulstr(udev_monitor->udev, &buf.raw[bufpos], buflen - bufpos);
- if (!udev_device)
+ if (!udev_device) {
+ log_debug("could not create device: %m");
return NULL;
+ }
if (is_initialized)
udev_device_set_is_initialized(udev_device);
@@ -712,8 +716,10 @@ int udev_monitor_send_device(struct udev_monitor *udev_monitor,
uint64_t tag_bloom_bits;
blen = udev_device_get_properties_monitor_buf(udev_device, &buf);
- if (blen < 32)
+ if (blen < 32) {
+ log_debug("device buffer is too small to contain a valid device");
return -EINVAL;
+ }
/* fill in versioned header */
val = udev_device_get_subsystem(udev_device);