CVE-2026-64155: wifi: ath11k: fix error path leaks in some WMI WOW calls

From: Greg Kroah-Hartman <[email protected]>

Description
===========

In the Linux kernel, the following vulnerability has been resolved:

wifi: ath11k: fix error path leaks in some WMI WOW calls

Fix two instances where we used to directly return the result of
ath11k_wmi_cmd_send(...). Because we did not check the return value, we
also did not free the skb in the error path.

The Linux kernel CVE team has assigned CVE-2026-64155 to this issue.


Affected and fixed versions
===========================

	Issue introduced in 5.11 with commit 79802b13a492d0fdeb922e98628e5ff1a8b74026 and fixed in 5.15.209 with commit d6c7b8d0dc22c0a8743435db8f42d98524b70df3
	Issue introduced in 5.11 with commit 79802b13a492d0fdeb922e98628e5ff1a8b74026 and fixed in 6.1.175 with commit cd43d587dd333517c806cd24696e6e1a26b9951e
	Issue introduced in 5.11 with commit 79802b13a492d0fdeb922e98628e5ff1a8b74026 and fixed in 6.6.142 with commit 3d675896ea03aca631852a2a7e91e6cb8f664967
	Issue introduced in 5.11 with commit 79802b13a492d0fdeb922e98628e5ff1a8b74026 and fixed in 6.12.92 with commit 008955b1348452de25bc19d6e0f0f673d4cb9a3c
	Issue introduced in 5.11 with commit 79802b13a492d0fdeb922e98628e5ff1a8b74026 and fixed in 6.18.34 with commit acde4692afcdaea6de3e2996ddfaeaa7ae6b0130
	Issue introduced in 5.11 with commit 79802b13a492d0fdeb922e98628e5ff1a8b74026 and fixed in 7.0.11 with commit d618d322b95c80d5ad7091f35a7193e4050dcc27
	Issue introduced in 5.11 with commit 79802b13a492d0fdeb922e98628e5ff1a8b74026 and fixed in 7.1 with commit 55dda532bbc261aef495e403c8900c5e2ab5fa34

Please see https://www.kernel.org for a full list of currently supported
kernel versions by the kernel community.

Unaffected versions might change over time as fixes are backported to
older supported kernel versions.  The official CVE entry at
	https://cve.org/CVERecord/?id=CVE-2026-64155
will be updated if fixes are backported, please check that for the most
up to date information about this issue.


Affected files
==============

The file(s) affected by this issue are:
	drivers/net/wireless/ath/ath11k/wmi.c


Mitigation
==========

The Linux kernel CVE team recommends that you update to the latest
stable kernel version for this, and many other bugfixes.  Individual
changes are never tested alone, but rather are part of a larger kernel
release.  Cherry-picking individual commits is not recommended or
supported by the Linux kernel community at all.  If however, updating to
the latest release is impossible, the individual changes to resolve this
issue can be found at these commits:
	https://git.kernel.org/stable/c/d6c7b8d0dc22c0a8743435db8f42d98524b70df3
	https://git.kernel.org/stable/c/cd43d587dd333517c806cd24696e6e1a26b9951e
	https://git.kernel.org/stable/c/3d675896ea03aca631852a2a7e91e6cb8f664967
	https://git.kernel.org/stable/c/008955b1348452de25bc19d6e0f0f673d4cb9a3c
	https://git.kernel.org/stable/c/acde4692afcdaea6de3e2996ddfaeaa7ae6b0130
	https://git.kernel.org/stable/c/d618d322b95c80d5ad7091f35a7193e4050dcc27
	https://git.kernel.org/stable/c/55dda532bbc261aef495e403c8900c5e2ab5fa34