What’s Vulnerable › Vulnerabilities

CVE-2022-50186: ath11k: fix missing skb drop on htc_tx_completion error

• Severity: medium (CVSS 5.5 v3.1)
• Exploited in the wild: not listed in CISA KEV
• EPSS: 0.2% probability of exploitation in the next 30 days
• Public exploit or detection template: none known
• Published: 2025-06-18 · updated 2026-06-17
• Weakness: CWE-401

Description

In the Linux kernel, the following vulnerability has been resolved: ath11k: fix missing skb drop on htc_tx_completion error On htc_tx_completion error the skb is not dropped. This is wrong since the completion_handler logic expect the skb to be consumed anyway even when an error is triggered. Not freeing the skb on error is a memory leak since the skb won't be freed anywere else. Correctly free the packet on eid >= ATH11K_HTC_EP_COUNT before returning. Tested-on: IPQ8074 hw2.0 AHB WLAN.HK.2.5.0.1-01208-QCAHKSWPL_SILICONZ-1

Affected products

• Linux kernel: from 5.17 before 5.18.18; from 5.19 before 5.19.2 — fixed in 5.18.18, 5.19.2

How to fix

Upgrade to a fixed version: Linux kernel 5.18.18, 5.19.2. Check the vendor advisory for mitigations.

References

• https://git.kernel.org/stable/c/1f1483361585ae7556492f50f83f038bbdf8c294
• https://git.kernel.org/stable/c/dda25326839d6e6b1fe59e79616149e44ea4eaa4
• https://git.kernel.org/stable/c/e5646fe3b7ef739c392e59da7db6adf5e1fdef42

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