[Mesa-dev] [PATCH] anv: 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: b1fb6e8d "anv: do not open random render node(s)"
Signed-off-by: Grazvydas Ignotas <notasas at gmail.com>
---
 src/intel/vulkan/anv_device.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/src/intel/vulkan/anv_device.c b/src/intel/vulkan/anv_device.c
index 6b3202d..78f133e 100644
--- a/src/intel/vulkan/anv_device.c
+++ b/src/intel/vulkan/anv_device.c
@@ -492,11 +492,11 @@ anv_enumerate_devices(struct anv_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