CVE-2025-37897

/// Technical description

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

wifi: plfxlc: Remove erroneous assert in plfxlc_mac_release

plfxlc_mac_release() asserts that mac->lock is held. This assertion is

incorrect, because even if it was possible, it would not be the valid

behaviour. The function is used when probe fails or after the device is

disconnected. In both cases mac->lock can not be held as the driver is

not working with the device at the moment. All functions that use mac->lock

unlock it just after it was held. There is also no need to hold mac->lock

for plfxlc_mac_release() itself, as mac data is not affected, except for

mac->flags, which is modified atomically.

This bug leads to the following warning:

================================================================

WARNING: CPU: 0 PID: 127 at drivers/net/wireless/purelifi/plfxlc/mac.c:106 plfxlc_mac_release+0x7d/0xa0

Modules linked in:

CPU: 0 PID: 127 Comm: kworker/0:2 Not tainted 6.1.124-syzkaller #0

Hardware name: Google Go

/// Remediation

Check the references section for vendor advisories, patches, and mitigation guidance. If immediate patching is not possible, review the CVSS vector to understand the attack surface and apply compensating controls such as network segmentation or access restrictions.

/// References