CVE-2021-47017
ath10k: Fix a use after free in ath10k_htc_send_bundle
- Published
- Updated
- Reserved
- Assigned by
- Linux
Description
In the Linux kernel, the following vulnerability has been resolved: ath10k: Fix a use after free in ath10k_htc_send_bundle In ath10k_htc_send_bundle, the bundle_skb could be freed by dev_kfree_skb_any(bundle_skb). But the bundle_skb is used later by bundle_skb->len. As skb_len = bundle_skb->len, my patch replaces bundle_skb->len to skb_len after the bundle_skb was freed.
Timeline
ID reserved
By Linux
- 1 day later
· 1 day 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 |
|---|---|---|---|
| LinuxCNA (assigner) | 3.1 | High8.8 | CVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H |
| NVDNVD · Modified | 3.1 | High7.8 | CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H |
- EPSS (exploitation in 30 days)
- 0.34% · top 72% 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: High 8.8.
Weakness
Affected products
- affected c8334512f3dd1b94844baca629f9bedca4271593 – < 8bb054fb336f4250002fff4e0b075221c05c3c65
- affected c8334512f3dd1b94844baca629f9bedca4271593 – < 3b1ac40c6012140828caa79e592a438a18ebf71b
- affected c8334512f3dd1b94844baca629f9bedca4271593 – < 5e413c0831ff4700d1739db3fa3ae9f859744676
- affected c8334512f3dd1b94844baca629f9bedca4271593 – < 8392df5d7e0b6a7d21440da1fc259f9938f4dec3
- affected 5.8
- unaffected < 5.8
- unaffected 5.10.37 – ≤ 5.10.*
- unaffected 5.11.21 – ≤ 5.11.*
- unaffected 5.12.4 – ≤ 5.12.*
- unaffected 5.13 – ≤ *
References (4)
- https://git.kernel.org/stable/c/8bb054fb336f4250002fff4e0b075221c05c3c65 (opens in a new tab)x_transferred
- https://git.kernel.org/stable/c/3b1ac40c6012140828caa79e592a438a18ebf71b (opens in a new tab)x_transferred
- https://git.kernel.org/stable/c/5e413c0831ff4700d1739db3fa3ae9f859744676 (opens in a new tab)x_transferred
- https://git.kernel.org/stable/c/8392df5d7e0b6a7d21440da1fc259f9938f4dec3 (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-2021-47017)Record last updated .