CVE-2021-47501
i40e: Fix NULL pointer dereference in i40e_dbg_dump_desc
- Published
- Updated
- Reserved
- Assigned by
- Linux
Description
In the Linux kernel, the following vulnerability has been resolved: i40e: Fix NULL pointer dereference in i40e_dbg_dump_desc When trying to dump VFs VSI RX/TX descriptors using debugfs there was a crash due to NULL pointer dereference in i40e_dbg_dump_desc. Added a check to i40e_dbg_dump_desc that checks if VSI type is correct for dumping RX/TX descriptors.
Timeline
ID reserved
By Linux
- 2 days later
· 2 days later
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)
- 0.24% · top 85% of all CVEs (7 Nov 2026)
- CISA SSVC
- Exploitation: none · Automatable: no · Technical impact: partial
The list uses the assigner's score when there is one, then CISA's, then NVD's: Medium 5.5.
Weakness
Affected products
- affected 02e9c290814cc143ceccecb14eac3e7a05da745e – < e5b7fb2198abc50058f1a29c395b004f76ab1c83
- affected 02e9c290814cc143ceccecb14eac3e7a05da745e – < 16431e442db248ecd8aa9457cf0a656f1885f56e
- affected 02e9c290814cc143ceccecb14eac3e7a05da745e – < 23ec111bf3549aae37140330c31a16abfc172421
- affected 3.12
- unaffected < 3.12
- unaffected 5.10.85 – ≤ 5.10.*
- unaffected 5.15.8 – ≤ 5.15.*
- unaffected 5.16 – ≤ *
References (3)
- https://git.kernel.org/stable/c/e5b7fb2198abc50058f1a29c395b004f76ab1c83 (opens in a new tab)x_transferred
- https://git.kernel.org/stable/c/16431e442db248ecd8aa9457cf0a656f1885f56e (opens in a new tab)x_transferred
- https://git.kernel.org/stable/c/23ec111bf3549aae37140330c31a16abfc172421 (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-2021-47501)Record last updated .