libvirglrenderer1: A flaw was found in the VirGL virtual OpenGL renderer (virglrenderer)
CVE-2022-0175 is fixed in 2 products on 1 platform, first by libvirglrenderer1 0.8.2-1ubuntu1.1, released January 31, 2022. It is not reported as exploited. Patch Radar priority: Routine.
A flaw was found in the VirGL virtual OpenGL renderer (virglrenderer). Thevirgl did not properly initialize memory when allocating a host-backedmemory resource. A malicious guest could use this flaw to mmap from theguest kernel and read this uninitialized memory from the host, possiblyleading to information disclosure.
Where it's fixed
| Product | Fixed in | Fix | Released |
|---|---|---|---|
| Linux | |||
| libvirglrenderer1 · Ubuntu 20.04 LTS (focal) | 0.8.2-1ubuntu1.1 | libvirglrenderer1 0.8.2-1ubuntu1.1 | Jan 31, 2022 |
| libvirglrenderer1 · Ubuntu 22.04.1 LTS (jammy) | 0.9.1-1~exp1ubuntu2 | libvirglrenderer1 0.9.1-1~exp1ubuntu2 | Jan 31, 2022 |
| libvirglrenderer1 · Ubuntu 24.10 (oracular) | 0.9.1-1~exp1ubuntu2 | libvirglrenderer1 0.9.1-1~exp1ubuntu2 | Jan 16, 2026 |
| libvirglrenderer1 · Ubuntu 25.04 (plucky) | 0.9.1-1~exp1ubuntu2 | libvirglrenderer1 0.9.1-1~exp1ubuntu2 | Jan 16, 2026 |
| virgl-server · Ubuntu 20.04 LTS (focal) | 0.8.2-1ubuntu1.1 | virgl-server 0.8.2-1ubuntu1.1 | Jan 31, 2022 |
| virgl-server · Ubuntu 22.04.1 LTS (jammy) | 0.9.1-1~exp1ubuntu2 | virgl-server 0.9.1-1~exp1ubuntu2 | Jan 31, 2022 |
| virgl-server · Ubuntu 24.10 (oracular) | 0.9.1-1~exp1ubuntu2 | virgl-server 0.9.1-1~exp1ubuntu2 | Jan 16, 2026 |
| virgl-server · Ubuntu 25.04 (plucky) | 0.9.1-1~exp1ubuntu2 | virgl-server 0.9.1-1~exp1ubuntu2 | Jan 16, 2026 |
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