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CVE-2021-47426bpf, s390: Fix potential memory leak about jit_data
- 5.5MediumCVSS base score
- 0.22%Exploitation in 30 daysEPSS · top 87% of all CVEs
- NoKnown exploitednot in CISA's KEV catalog
- NonePublic exploitsnone known yet
Description
In the Linux kernel, the following vulnerability has been resolved: bpf, s390: Fix potential memory leak about jit_data Make sure to free jit_data through kfree() in the error path.
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 |
|---|---|---|---|
| NVDNVD · Analyzed | 3.1 | Medium5.5 | CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H |
- EPSS (exploitation in 30 days)
- 0.22% · top 87% of all CVEs (14 Nov 2026)
- CISA SSVC
- Exploitation: none · Automatable: no · Technical impact: partial
Loading the EPSS history…
The list uses the assigner's score when there is one, then CISA's, then NVD's: Medium 5.5.
Affected products
- affected 1c8f9b91c456f5b47a377a0c8c5d4130fc39433a – < a326f9c01cfbee4450ae49ce618ae6cbc0f76842
- affected 1c8f9b91c456f5b47a377a0c8c5d4130fc39433a – < 29fdb11ca88d3c490a3d56f0dc77eb9444d086be
- affected 1c8f9b91c456f5b47a377a0c8c5d4130fc39433a – < d590a410e472417a22336c7c37685bfb38e801f2
- affected 1c8f9b91c456f5b47a377a0c8c5d4130fc39433a – < 686cb8b9f6b46787f035afe8fbd132a74e6b1bdd
- affected 5.4
- unaffected < 5.4
- unaffected 5.4.153 – ≤ 5.4.*
- unaffected 5.10.73 – ≤ 5.10.*
- unaffected 5.14.12 – ≤ 5.14.*
- unaffected 5.15 – ≤ *
References
References4
- https://git.kernel.org/stable/c/a326f9c01cfbee4450ae49ce618ae6cbc0f76842 (opens in a new tab)x_transferred
- https://git.kernel.org/stable/c/29fdb11ca88d3c490a3d56f0dc77eb9444d086be (opens in a new tab)x_transferred
- https://git.kernel.org/stable/c/d590a410e472417a22336c7c37685bfb38e801f2 (opens in a new tab)x_transferred
- https://git.kernel.org/stable/c/686cb8b9f6b46787f035afe8fbd132a74e6b1bdd (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)
- EUVD EUVD-2021-34431 (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://cveledger.app/cve/CVE-2021-47426)Record last updated .