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GPU (Linux): ensures we don't pass invalid length to calloc

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Fixes #2259
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李通洲 committed 2026-04-01 23:31:36 +08:00
1 parent 6319b68c2c
commit 299451ca62
1 file changed
+1 -1
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src/detection/gpu/gpu_drm.c
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@@ -181,7 +181,7 @@ const char* ffDrmDetectI915(FFGPUResult* gpu, int fd) {
.items_ptr = (uintptr_t) &queryItem,
.num_items = 1,
};
if (ioctl(fd, DRM_IOCTL_I915_QUERY, &query) >= 0) {
if (ioctl(fd, DRM_IOCTL_I915_QUERY, &query) >= 0 && queryItem.length > 0) { // #2259
FF_AUTO_FREE uint8_t* buffer = calloc(1, (size_t) queryItem.length);
queryItem.data_ptr = (uintptr_t) buffer;
if (ioctl(fd, DRM_IOCTL_I915_QUERY, &query) >= 0) {