linux: In the Linux kernel, the following vulnerability has been resolved: drm/vc4: kms: Add missing drm_crtc_commit_put C...
CVE-2021-47534 is fixed in linux on 1 platform, first by DEBIAN-CVE-2021-47534, released May 24, 2024. It is not reported as exploited. Patch Radar priority: Routine.
In the Linux kernel, the following vulnerability has been resolved: drm/vc4: kms: Add missing drm_crtc_commit_put Commit 9ec03d7f1ed3 ("drm/vc4: kms: Wait on previous FIFO users before a commit") introduced a global state for the HVS, with each FIFO storing the current CRTC commit so that we can properly synchronize commits. However, the refcounting was off and we thus ended up leaking the drm_crtc_commit structure every commit. Add a drm_crtc_commit_put to prevent the leakage.
Where it's fixed
| Product | Fixed in | Fix | Released |
|---|---|---|---|
| Linux | |||
| linux · Debian 12.15 (bookworm) | 5.15.15-1 | DEBIAN-CVE-2021-47534 | May 24, 2024 |
| linux · Debian 13.5 (trixie) | 5.15.15-1 | DEBIAN-CVE-2021-47534 | May 24, 2024 |
| linux · Debian 14 | 5.15.15-1 | DEBIAN-CVE-2021-47534 | May 24, 2024 |
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