CVE-2025-37744

/// Technical description

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

wifi: ath12k: fix memory leak in ath12k_pci_remove()

Kmemleak reported this error:

unreferenced object 0xffff1c165cec3060 (size 32):

comm "insmod", pid 560, jiffies 4296964570 (age 235.596s)

backtrace:

[<000000005434db68>] __kmem_cache_alloc_node+0x1f4/0x2c0

[<000000001203b155>] kmalloc_trace+0x40/0x88

[<0000000028adc9c8>] _request_firmware+0xb8/0x608

[<00000000cad1aef7>] firmware_request_nowarn+0x50/0x80

[<000000005011a682>] local_pci_probe+0x48/0xd0

[<00000000077cd295>] pci_device_probe+0xb4/0x200

[<0000000087184c94>] really_probe+0x150/0x2c0

The firmware memory was allocated in ath12k_pci_probe(), but not

freed in ath12k_pci_remove() in case ATH12K_FLAG_QMI_FAIL bit is

set. So call ath12k_fw_unmap() to free the memory.

Tested-on: WCN7850 hw2.0 PCI WLAN.HMT.2.0-02280-QCAHMTSWPL_V1.0_V2.0_SILICONZ-1

/// 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