Vulnerability in Linux
CVE-2021-47253
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.
EPSS: 0.002 (13.3th percentile) — read the EPSS interpretation.
CVSS v3 metric
CVSS v3 base score 5.5 (Medium). Vector: CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H.
Affected products
- Linux — versions 5.10.45, 5.6, 4.15
- Linux Linux_kernel — versions 5.13
Weakness classification (CWE)
References
Frequently asked questions
- What is CVE-2021-47253?
- CVE-2021-47253 is a medium-severity vulnerability in Linux, classified under Missing Release of Memory after Effective Lifetime. CVSS score: 5.5/10. Published 2024-05-21.
- How severe is CVE-2021-47253?
- Medium severity. CVSS v3 base score is 5.5 out of 10.