2 Commits

Author	SHA1	Message	Date
Michal Suchanek	c726fc01cf	dm: treewide: Use uclass_first_device_err when accessing one device ... There is a number of users that use uclass_first_device to access the first and (assumed) only device in uclass. Some check the return value of uclass_first_device and also that a device was returned which is exactly what uclass_first_device_err does. Some are not checking that a device was returned and can potentially crash if no device exists in the uclass. Finally there is one that returns NULL on error either way. Convert all of these to use uclass_first_device_err instead, the return value will be removed from uclass_first_device in a later patch. Signed-off-by: Michal Suchanek <msuchanek@suse.de> Reviewed-by: Simon Glass <sjg@chromium.org>	2022-10-17 21:17:12 -06:00
Andrew Scull	a73f3ba91f	fuzz: virtio: Add fuzzer for vring ... Add a fuzzer to test the vring handling code against unexpected mutations from the virtio device. After building the sandbox with CONFIG_FUZZ=y, the fuzzer can be invoked with by: UBOOT_SB_FUZZ_TEST=fuzz_vring ./u-boot This fuzzer finds unvalidated inputs in the vring driver that allow a buggy or malicious device to make the driver chase wild pointers. Signed-off-by: Andrew Scull <ascull@google.com>	2022-06-23 12:58:19 -04:00