Vulnerability in Linux
CVE-2021-47534
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.
EPSS: 0.002 (8.4th percentile) — read the EPSS interpretation.
CVSS v3 metric
CVSS v3 base score 4.1 (Medium). Vector: CVSS:3.1/AV:L/AC:H/PR:H/UI:N/S:U/C:N/I:N/A:H.
Affected products
- Linux — versions 9ec03d7f1ed394897891319a4dda75f52c5d292d, 5.12, 0
- Linux Linux_kernel — versions 5.16
References
Frequently asked questions
- What is CVE-2021-47534?
- CVE-2021-47534 is a medium-severity vulnerability in Linux. CVSS score: 4.1/10. Published 2024-05-24.
- How severe is CVE-2021-47534?
- Medium severity. CVSS v3 base score is 4.1 out of 10.