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CVE-2021-47141gve: Add NULL pointer checks when freeing irqs.
- 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: gve: Add NULL pointer checks when freeing irqs. When freeing notification blocks, we index priv->msix_vectors. If we failed to allocate priv->msix_vectors (see abort_with_msix_vectors) this could lead to a NULL pointer dereference if the driver is unloaded.
Timeline
ID reserved
By Linux
- 21 days later
· 21 days later
Published
- 2 years later
· 2 years 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 (13 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 893ce44df56580fb878ca5af9c4a5fd87567da50 – < 821149ee88c206fa37e79c1868cc270518484876
- affected 893ce44df56580fb878ca5af9c4a5fd87567da50 – < da21a35c00ff1a1794d4f166d3b3fa8db4d0f6fb
- affected 893ce44df56580fb878ca5af9c4a5fd87567da50 – < 5278c75266c5094d3c0958793bf12fc90300e580
- affected 893ce44df56580fb878ca5af9c4a5fd87567da50 – < 5218e919c8d06279884aa0baf76778a6817d5b93
- affected 5.3
- unaffected < 5.3
- unaffected 5.4.124 – ≤ 5.4.*
- unaffected 5.10.42 – ≤ 5.10.*
- unaffected 5.12.9 – ≤ 5.12.*
- unaffected 5.13 – ≤ *
References
References4
- https://git.kernel.org/stable/c/821149ee88c206fa37e79c1868cc270518484876 (opens in a new tab)x_transferred
- https://git.kernel.org/stable/c/da21a35c00ff1a1794d4f166d3b3fa8db4d0f6fb (opens in a new tab)x_transferred
- https://git.kernel.org/stable/c/5278c75266c5094d3c0958793bf12fc90300e580 (opens in a new tab)x_transferred
- https://git.kernel.org/stable/c/5218e919c8d06279884aa0baf76778a6817d5b93 (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-2021-33789 (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-2021-47141)Record last updated .