5.5

CVE-2021-47093: platform/x86: intel_pmc_core: fix memleak on registration failure

Analyzed
AliasesUBUNTU-CVE-2021-47093DEBIAN-CVE-2021-47093
Published 04-03-2024Last modified 11-05-2026

Vulnerability summary

CVE-2021-47093 is a medium (CVSS 5.5) vulnerability in linux. EPSS estimates a 0.26% chance of exploitation in the next 30 days, higher than 17.9% of scored vulnerabilities.

Priority
Routine

Not severe (CVSS 5.5, local access); no exploitation reported by the 5 checked sources

Source freshness unavailable

How is this decided?
CVSS score
5.5/10
010
Medium · v3.1 (NVD)
EPSS score
0.26%
0%100%
Low · 0.00 pp in 30 days
KEVNot listedNot listed by any tracked catalog.
RansomwareNot flaggedNo ransomware use recorded.
Public exploits0No public exploits recorded

Advisory lineage

Upstream 0 · Downstream 5 · Related 5
SUSE-SU-2024:1320-1SUSE-SU-2024:1321-1SUSE-SU-2024:1466-1SUSE-SU-2024:1480-1SUSE-SU-2024:1490-1

Timeline

  1. 04-03-2024
    PublishedVulnerability first disclosed.
  2. 11-05-2026
    Last modifiedVulnerability information updated.

Description

In the Linux kernel, the following vulnerability has been resolved: platform/x86: intel_pmc_core: fix memleak on registration failure In case device registration fails during module initialisation, the platform device structure needs to be freed using platform_device_put() to properly free all resources (e.g. the device name).

CVSS metrics

3 scores · 3 sources · 1 version

EPSS trend

Probability

0.26%

Chance of exploitation in the next 30 days

Percentile

18%

Versus all other CVEs

30-day change

No change 0.00 pp

From 0.26% on 04-10-2026

04-10-202603-11-2026

Known exploited

Compare KEV catalogs
CISA KEV

Not in the CISA KEV catalog.

ENISA CNW

Not in the ENISA CNW catalog.

CIRCL

Not in the CIRCL catalog.

Public exploits

0 found

No public exploits indexed.

Weaknesses

CWE · root cause

Affected systems

Version check

Known conditions: local access, low-privilege account, no user interaction (CVSS vector). Other conditions: not stated in public data.

Ubuntu62 products
  • linux-allwinner-5.19All versions (No fix recorded)
  • linux-aws-5.0All versions (No fix recorded)
  • linux-aws-5.11All versions (No fix recorded)
  • linux-aws-5.13All versions (No fix recorded)
  • linux-aws-5.19All versions (No fix recorded)
Linux2 products
  • linux≥ 938835aa903ae19ad62805134f79bbcf20fc3bea, < 7a37f2e370699e2feca3dca6c8178c71ceee7e8a | ≥ 938835aa903ae19ad62805134f79bbcf20fc3bea, < 9ca1324755f1f8629a370af5cc315b175331f5d1 | ≥ 938835aa903ae19ad62805134f79bbcf20fc3bea, < 26a8b09437804fabfb1db080d676b96c0de68e7c | 5.9
  • linux_kernel≥ 5.9, < 5.10.89 | ≥ 5.11, < 5.15.12 | 5.16:rc1 | 5.16:rc2 | 5.16:rc3 | 5.16:rc4 | 5.16:rc5 | 5.16:rc6
Debian1 product
  • linux< 5.15.15-1

3 vendors · 65 products

References

7 links