[v3,01/14] bus/dpaa: fix null pointer dereference
Checks
Commit Message
This patches fixes a null pointer derefencing that happens
when the device string passed to the iterator is NULL. This
situation can happen when iterating on a class type.
For example:
RTE_DEV_FOREACH(dev, "class=eth", &dev_iter) {
...
}
Fixes: e79df833d3f6 ("bus/dpaa: support hotplug ops")
Cc: stable@dpdk.org
Acked-by: Adrián Moreno <amorenoz@redhat.com>
Signed-off-by: Maxime Coquelin <maxime.coquelin@redhat.com>
---
drivers/bus/dpaa/dpaa_bus.c | 5 +++++
1 file changed, 5 insertions(+)
@@ -703,6 +703,11 @@ dpaa_bus_dev_iterate(const void *start, const char *str,
struct rte_dpaa_device *dev;
char *dup, *dev_name = NULL;
+ if (str == NULL) {
+ DPAA_BUS_DEBUG("No device string");
+ return NULL;
+ }
+
/* Expectation is that device would be name=device_name */
if (strncmp(str, "name=", 5) != 0) {
DPAA_BUS_DEBUG("Invalid device string (%s)\n", str);