wifi: ath11k: mhi: fix potential memory leak in ath11k_mhi_register() (CVE-2022-50418) | HOL Guard CVE

Medium · CVSS 5.5CVE-2022-50418

wifi: ath11k: mhi: fix potential memory leak in ath11k_mhi_register()

Answer in brief

CVE-2022-50418 records a Medium severity (CVSS 5.5) vulnerability in wifi: ath11k: mhi: fix potential memory leak in ath11k_mhi_register(). The current sources do not mark it as known exploited. The current feed maps Linux/Linux (generic), Linux/Linux (generic). Check affected ranges and fixed versions before updating.

Analysis pending evidence review

HOL Guard separates source facts from reviewed analysis. See the methodology.

Published Sep 18, 2025Updated Aug 15, 2026Source checked Sep 29, 2026First seen by HOL Aug 15, 2026Material review Aug 15, 2026

Upstream Advisory

Key facts

Risk: Medium · CVSS 5.5
Exploitation: Not marked as known exploited
Affected software: 3 mapped packages or products
Fix availability: Available

Why this deserves its current priority

CVSS is 5.5. The current sources do not mark it as known exploited. Treat this as a source-backed prioritization signal, not a statement about your environment.

Analysis status

Analysis pending evidence review

Factual feed record only; HOL analysis is not approved for indexing. Read the methodology.

Affected scope and exposure questions

The current feed maps Linux/Linux (generic), Linux/Linux (generic). Check affected ranges and fixed versions before updating.

Affected products and reported versions
Product	Affected versions	Fixed versions
cpe:2.3:o:linux:linux_kernel::::::::	Not reported	Not reported

Mapped affected packages and fixed versions
Package	Affected range	Fixed version
Linux/Linuxgeneric	>=6ac04bdc5edb418787ab2040b1f922c23464c750 <72ef896e80b6ec7cdc1dd42577045f8e7c9c32b3 \|\| >=6ac04bdc5edb418787ab2040b1f922c23464c750 <015ced9eb63b8b19cb725a1d592d150b60494ced \|\| >=6ac04bdc5edb418787ab2040b1f922c23464c750 <43e7c3505ec70db3d3c6458824d5fa40f62e3e7b	72ef896e80b6ec7cdc1dd42577045f8e7c9c32b3, 015ced9eb63b8b19cb725a1d592d150b60494ced, 43e7c3505ec70db3d3c6458824d5fa40f62e3e7b
Linux/Linuxgeneric	5.17	Not reported

Recommended response

Check inventory. Check lockfiles and deployed manifests for Linux/Linux, Linux/Linux.
Review the reported fix. Update Linux/Linux to 72ef896e80b6ec7cdc1dd42577045f8e7c9c32b3 if you use the affected versions. Test the change in a non-production environment first.

Evidence timeline and material changes

Published upstream
Sep 18, 2025
Evidence: source:cvelist:source_dates:source-dates:record
Source modified
Aug 15, 2026
Evidence: source:cvelist:source_dates:source-dates:record
First seen by HOL
Aug 15, 2026

Sources and claim methodology

Upstream source description

In the Linux kernel, the following vulnerability has been resolved: wifi: ath11k: mhi: fix potential memory leak in ath11k_mhi_register() mhi_alloc_controller() allocates a memory space for mhi_ctrl. When gets some error, mhi_ctrl should be freed with mhi_free_controller(). But when ath11k_mhi_read_addr_from_dt() fails, the function returns without calling mhi_free_controller(), which will lead to a memory leak. We can fix it by calling mhi_free_controller() when ath11k_mhi_read_addr_from_dt() fails.

Quoted source text, attributed separately from HOL analysis.