CVE-2021-47017

HighCVSS 7.8/10Last modified Aug 4, 2026

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.

Metrics

CVSS 3.1 7.8/10CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H

Weakness enumeration

CWE-416

Affected software

VendorProductVersions
LinuxLinux>= c8334512f3dd1b94844baca629f9bedca4271593, < 8bb054fb336f4250002fff4e0b075221c05c3c65; >= c8334512f3dd1b94844baca629f9bedca4271593, < 3b1ac40c6012140828caa79e592a438a18ebf71b; >= c8334512f3dd1b94844baca629f9bedca4271593, < 5e413c0831ff4700d1739db3fa3ae9f859744676; >= c8334512f3dd1b94844baca629f9bedca4271593, < 8392df5d7e0b6a7d21440da1fc259f9938f4dec3
LinuxLinux5.8

References

Timeline

Published
Feb 28, 2024
Last modified
Aug 4, 2026
NVD status
Modified

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CVE-2021-47017: High severity, CVSS 7.8 | Vulnix