Reference page — cumulative record through Wednesday, August 19, 2026 UTC. Reference pages update as the archive grows; only dated daily editions are immutable pages of record.
AV AC PR UI S C I A CVSS EPSS %ile KEV L L L N U N N H 5.5 .0022 13.4 —
AFFECTED Product Versions Fixed Linux 8c7aea404d55dabc71df792c850aed5536ece2fd – — Linux 5.6 – 5.10.45
TIMELINE Apr 10 Reserved by Linux May 21 Published (CNA: Linux) Aug 11 ENRICHED — CVE-2021-47253 (Linux). Received CVSS 5.5 and CPE data from NVD.
In the Linux kernel, the following vulnerability has been resolved: drm/amd/display: Fix potential memory leak in DMUB hw_init [Why] On resume we perform DMUB hw_init which allocates memory: dm_resume->dm_dmub_hw_init->dc_dmub_srv_create->kzalloc That results in memory leak in suspend/resume scenarios. [How] Allocate memory for the DC wrapper to DMUB only if it was not allocated before. No need to reallocate it on suspend/resume.
| Date | Event | Detail |
|---|---|---|
| April 10, 2024 | Reserved | Reserved by Linux |
| May 21, 2024 | Published | Published (CNA: Linux) |
| August 11, 2026 | ENRICHED | ENRICHED — CVE-2021-47253 (Linux). Received CVSS 5.5 and CPE data from NVD. |
Authoritative record: CVE-2021-47253 at cve.org
Vendors: linux
Weaknesses: CWE-401
This is a reference page, not a dated page of record. It assembles the complete lifecycle of CVE-2021-47253 from the CVE Program record, NVD enrichment, the CISA KEV catalog, EPSS, and OSV advisories. The box score's numbers (CVSS, EPSS, KEV status) are current as of Wednesday, August 19, 2026 UTC and are re-derived as the archive grows; only dated daily editions are immutable pages of record. The authoritative source for this identifier is cve.org.