CVE-2021-47017

ath10k: Fix a use after free in ath10k_htc_send_bundle

HIGH
7.8
CVSS Score
Published: February 28, 2024 at 08:13 AM UTC
Updated: August 5, 2026 at 09:24 AM UTC
1 product affected across 1 vendorLinux Kernel

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Severity
HIGH7.8
Exploit prediction
EPSS 0.3%
SSVC
No known exploit

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.

Affected

Our own answer: ranges merged, affected separated from platform-only, with confidence and review flags.

5.11 ≤ v < 5.11.215.12 ≤ v < 5.12.45.8 ≤ v < 5.10.375.8 ≤ v < 5.11.215.8 ≤ v < 5.12.45.8 ≤ v < 5.135.8c8334512f3dd1b94844baca629f9bedca4271593
Vendor states this is fixed in 3b1ac40c6012140828caa79e592a438a18ebf71b (fixed)
Vendor states this is fixed in 5e413c0831ff4700d1739db3fa3ae9f859744676 (fixed)
Vendor states this is fixed in 8392df5d7e0b6a7d21440da1fc259f9938f4dec3 (fixed)
Vendor states this is fixed in 8bb054fb336f4250002fff4e0b075221c05c3c65 (fixed)
Vendor states this is fixed in 5.10.37 (unaffected)
Vendor states this is fixed in 5.11.21 (unaffected)
Vendor states this is fixed in 5.12.4 (unaffected)
Vendor states this is fixed in 5.13 (unaffected)
Vendor states this is fixed in 5.8 (unaffected)

References (4)

Patch
Source: 416baaa9-dc9f-4396-8d5f-8c081fb06d67
https://git.kernel.org/stable/c/3b1ac40c6012140828caa79e592a438a18ebf71b
Patch
Source: 416baaa9-dc9f-4396-8d5f-8c081fb06d67
https://git.kernel.org/stable/c/5e413c0831ff4700d1739db3fa3ae9f859744676
Patch
Source: 416baaa9-dc9f-4396-8d5f-8c081fb06d67
https://git.kernel.org/stable/c/8392df5d7e0b6a7d21440da1fc259f9938f4dec3
Patch
Source: 416baaa9-dc9f-4396-8d5f-8c081fb06d67
https://git.kernel.org/stable/c/8bb054fb336f4250002fff4e0b075221c05c3c65

SSVC — Action Prioritization

SSVCNo known exploitNot automatablePartial impact

SSVC signals action urgency (what to patch first), separate from CVSS which measures severity.

CVSS

Attack Vector
LOCAL
Complexity
LOW
Privileges
LOW
User Interaction
NONE
Scope
UNCHANGED
Confidentiality
HIGH
Integrity
HIGH
Availability
HIGH
Vector?

Quick Info

StatusMODIFIED
CWE
CWE-416

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