CVE-2023-53602

wifi: ath11k: fix memory leak in WMI firmware stats

MEDIUM
5.5
CVSS Score
Published: October 4, 2025 at 03:44 PM UTC
Updated: June 17, 2026 at 06:45 AM UTC
1 product affected across 1 vendorLinux Kernel

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Severity
MEDIUM5.5
Exploit prediction
EPSS 0.1%

Description

In the Linux kernel, the following vulnerability has been resolved: wifi: ath11k: fix memory leak in WMI firmware stats Memory allocated for firmware pdev, vdev and beacon statistics are not released during rmmod. Fix it by calling ath11k_fw_stats_free() function before hardware unregister. While at it, avoid calling ath11k_fw_stats_free() while processing the firmware stats received in the WMI event because the local list is getting spliced and reinitialised and hence there are no elements in the list after splicing. Tested-on: QCN9074 hw1.0 PCI WLAN.HK.2.7.0.1-01744-QCAHKSWPL_SILICONZ-1

Affected

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

5.6 ≤ v < 6.1.425.6 ≤ v < 6.4.75.6 ≤ v < 6.56.2 ≤ v < 6.4.75.6d5c65159f2895379e11ca13f62feabe93278985d
Vendor states this is fixed in 55248d36beb79d3a61c9fb3122dc377fff523c89 (fixed)
Vendor states this is fixed in 6aafa1c2d3e3fea2ebe84c018003f2a91722e607 (fixed)
Vendor states this is fixed in 86f9330a49d1464849482298dd34d361859183eb (fixed)
Vendor states this is fixed in 5.6 (unaffected)
Vendor states this is fixed in 6.1.42 (unaffected)
Vendor states this is fixed in 6.4.7 (unaffected)
Vendor states this is fixed in 6.5 (unaffected)

CVSS

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

Quick Info

StatusANALYZED
CWE
CWE-401

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