CVE-2022-50418

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

State: Published
Severity: 5.5 Medium
Published: Sep 18, 2025
Updated: Aug 15, 2026
Reserved: Sep 17, 2025

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.

Scores

CVSS	Score	Vector	Source
3.1	5.5 Medium	CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H	CISA-ADP

Weaknesses

CWE-401 Missing Release of Memory after Effective Lifetime

Affected Products

Product	Versions
LinuxLinux	6ac04bdc5edb418787ab2040b1f922c23464c750 to before 72ef896e80b6ec7cdc1dd42577045f8e7c9c32b3Affected 6ac04bdc5edb418787ab2040b1f922c23464c750 to before 015ced9eb63b8b19cb725a1d592d150b60494cedAffected 6ac04bdc5edb418787ab2040b1f922c23464c750 to before 43e7c3505ec70db3d3c6458824d5fa40f62e3e7bAffected
LinuxLinux	5.17Affected before 5.17Not affected 5.19.17 through 5.19.Not affected 6.0.3 through 6.0.Not affected 6.1 and laterNot affected

References

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