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CVE-2021-47313
cpufreq: CPPC: Fix potential memleak in cppc_cpufreq_cpu_init
High8.4EPSS 0.26%
- Published
- Updated
- Reserved
- Assigned by
- Linux
Description
In the Linux kernel, the following vulnerability has been resolved: cpufreq: CPPC: Fix potential memleak in cppc_cpufreq_cpu_init It's a classic example of memleak, we allocate something, we fail and never free the resources. Make sure we free all resources on policy ->init() failures.
Timeline
ID reserved
By Linux
Published
- 24 months later
· 24 months later
Record updated
Changes after publication (a new score, a public exploit, EPSS crossing 1, 10 or 50 %, leaving KEV) are kept since November 2026; earlier ones are not known.
Scores
| Scored by | CVSS | Score | Vector |
|---|---|---|---|
| CISA-ADPADP (enrichment) | 3.1 | High8.4 | CVSS:3.1/AV:L/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H |
| NVDNVD · Analyzed | 3.1 | High8.4 | CVSS:3.1/AV:L/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H |
- EPSS (exploitation in 30 days)
- 0.26% · top 82% of all CVEs (7 Nov 2026)
- CISA SSVC
- Exploitation: none · Automatable: no · Technical impact: total
Loading the EPSS history…
The list uses the assigner's score when there is one, then CISA's, then NVD's: High 8.4.
Weakness
Affected products
- affected a28b2bfc099c6b9caa6ef697660408e076a32019 – < b775383355755885b19d2acef977f1ca132e80a3
- affected a28b2bfc099c6b9caa6ef697660408e076a32019 – < e1b2b2b61d30d7ce057ec17237c217d152ed97f2
- affected a28b2bfc099c6b9caa6ef697660408e076a32019 – < fe2535a44904a77615a3af8e8fd7dafb98fb0e1b
- affected 5.11
- unaffected < 5.11
- unaffected 5.12.19 – ≤ 5.12.*
- unaffected 5.13.4 – ≤ 5.13.*
- unaffected 5.14 – ≤ *
References (3)
- https://git.kernel.org/stable/c/b775383355755885b19d2acef977f1ca132e80a3 (opens in a new tab)x_transferred
- https://git.kernel.org/stable/c/e1b2b2b61d30d7ce057ec17237c217d152ed97f2 (opens in a new tab)x_transferred
- https://git.kernel.org/stable/c/fe2535a44904a77615a3af8e8fd7dafb98fb0e1b (opens in a new tab)x_transferred
Sources
The same CVE in the primary databases and aggregators, to check against.
- CVE.org record (opens in a new tab)
- CVE List JSON (GitHub) (opens in a new tab)
- NVD (opens in a new tab)
- FIRST EPSS (opens in a new tab)
- OSV.dev (opens in a new tab)
- GitHub Advisories (opens in a new tab)
- CIRCL Vulnerability-Lookup (opens in a new tab)
Badge for a README or a ticket
[](https://trackcve.app/cve/CVE-2021-47313)Record last updated .