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CVE-2021-47464audit: fix possible null-pointer dereference in audit_filter_rules
- 7.4HighCVSS base score
- 0.23%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: audit: fix possible null-pointer dereference in audit_filter_rules Fix possible null-pointer dereference in audit_filter_rules. audit_filter_rules() error: we previously assumed 'ctx' could be null
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 | High7.4 | CVSS:3.1/AV:L/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H |
| NVDNVD · Analyzed | 3.1 | High7.4 | CVSS:3.1/AV:L/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H |
- EPSS (exploitation in 30 days)
- 0.23% · top 87% of all CVEs (12 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 7.4.
Affected products
- affected bf361231c295d92a28ca283ea713f56e93e55796 – < d6f451f1f60c58d73038c7c3177066f8f084e2a2
- affected bf361231c295d92a28ca283ea713f56e93e55796 – < 16802fa4c33eb1a8efb23f1e93365190e4047d05
- affected bf361231c295d92a28ca283ea713f56e93e55796 – < 4e9e46a700201b4c85081fd478c99c692a9aaa0d
- affected bf361231c295d92a28ca283ea713f56e93e55796 – < 6e3ee990c90494561921c756481d0e2125d8b895
- affected 5.3
- unaffected < 5.3
- unaffected 5.4.156 – ≤ 5.4.*
- unaffected 5.10.76 – ≤ 5.10.*
- unaffected 5.14.15 – ≤ 5.14.*
- unaffected 5.15 – ≤ *
References
References4
- https://git.kernel.org/stable/c/d6f451f1f60c58d73038c7c3177066f8f084e2a2 (opens in a new tab)x_transferred
- https://git.kernel.org/stable/c/16802fa4c33eb1a8efb23f1e93365190e4047d05 (opens in a new tab)x_transferred
- https://git.kernel.org/stable/c/4e9e46a700201b4c85081fd478c99c692a9aaa0d (opens in a new tab)x_transferred
- https://git.kernel.org/stable/c/6e3ee990c90494561921c756481d0e2125d8b895 (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-2021-34469 (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-2021-47464)Record last updated .