[Mesa-dev] [PATCH] radv: fix possible stack corruption

[Grazvydas Ignotas]

drmGetDevices2 takes count and not size. Probably hasn't caused problems
yet in practice and was missed as setups with more than 8 DRM devices
are not very common.

Fixes: 743315f2 "radv: do not open random render node(s)"
Signed-off-by: Grazvydas Ignotas <notasas at gmail.com>
---
 src/amd/vulkan/radv_device.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/src/amd/vulkan/radv_device.c b/src/amd/vulkan/radv_device.c
index dd401f4..214b2e0 100644
--- a/src/amd/vulkan/radv_device.c
+++ b/src/amd/vulkan/radv_device.c
@@ -399,11 +399,11 @@ radv_enumerate_devices(struct radv_instance *instance)
 	VkResult result = VK_ERROR_INCOMPATIBLE_DRIVER;
 	int max_devices;
 
 	instance->physicalDeviceCount = 0;
 
-	max_devices = drmGetDevices2(0, devices, sizeof(devices));
+	max_devices = drmGetDevices2(0, devices, ARRAY_SIZE(devices));
 	if (max_devices < 1)
 		return VK_ERROR_INCOMPATIBLE_DRIVER;
 
 	for (unsigned i = 0; i < (unsigned)max_devices; i++) {
 		if (devices[i]->available_nodes & 1 << DRM_NODE_RENDER &&
-- 
2.7.4