8.8

CVE-2021-47017: ath10k: Fix a use after free in ath10k_htc_send_bundle

Modified
AliasesUBUNTU-CVE-2021-47017DEBIAN-CVE-2021-47017
Published 28-02-2024Last modified 05-08-2026

Vulnerability summary

CVE-2021-47017 is a high (CVSS 8.8) Use After Free vulnerability in linux. EPSS estimates a 0.34% chance of exploitation in the next 30 days, higher than 27.7% of scored vulnerabilities.

Priority
Routine

Not severe (CVSS 8.8, adjacent network); no exploitation reported by the 5 checked sources

Source freshness unavailable

How is this decided?
CVSS score
8.8/10
010
High · v3.1 (CVE.org)
EPSS score
0.34%
0%100%
Low · 0.00 pp in 30 days
KEVNot listedNot listed by any tracked catalog.
RansomwareNot flaggedNo ransomware use recorded.
Public exploits0No public exploits recorded

Advisory lineage

Upstream 0 · Downstream 2 · Related 2
SUSE-SU-2024:1465-1SUSE-SU-2024:1489-1

Timeline

  1. 28-02-2024
    PublishedVulnerability first disclosed.
  2. 05-08-2026
    Last modifiedVulnerability information updated.

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.

CVSS metrics

4 scores · 4 sources · 1 version

EPSS trend

Probability

0.34%

Chance of exploitation in the next 30 days

Percentile

28%

Versus all other CVEs

30-day change

No change 0.00 pp

From 0.34% on 04-10-2026

04-10-202603-11-2026

Known exploited

Compare KEV catalogs
CISA KEV

Not in the CISA KEV catalog.

ENISA CNW

Not in the ENISA CNW catalog.

CIRCL

Not in the CIRCL catalog.

Public exploits

0 found

No public exploits indexed.

Weaknesses

CWE · root cause

Affected systems

Version check

Known conditions: adjacent network, no authentication, no user interaction (CVSS vector). Other conditions: not stated in public data.

Ubuntu62 products
  • linux-allwinner-5.19All versions (No fix recorded)
  • linux-aws-5.0All versions (No fix recorded)
  • linux-aws-5.11All versions (No fix recorded)
  • linux-aws-5.13All versions (No fix recorded)
  • linux-aws-5.19All versions (No fix recorded)
Linux2 products
  • linux≥ c8334512f3dd1b94844baca629f9bedca4271593, < 8bb054fb336f4250002fff4e0b075221c05c3c65 | ≥ c8334512f3dd1b94844baca629f9bedca4271593, < 3b1ac40c6012140828caa79e592a438a18ebf71b | ≥ c8334512f3dd1b94844baca629f9bedca4271593, < 5e413c0831ff4700d1739db3fa3ae9f859744676 | ≥ c8334512f3dd1b94844baca629f9bedca4271593, < 8392df5d7e0b6a7d21440da1fc259f9938f4dec3 | 5.8
  • linux_kernel≥ 5.8, < 5.10.37 | ≥ 5.11, < 5.11.21 | ≥ 5.12, < 5.12.4
Debian1 product
  • linux< 5.10.38-1

3 vendors · 65 products

References

8 links