CVE-2022-50244

MEDIUM

MEDIUM Priority: 0.01 BB Relevance: 36/100

Published: 2025-09-15 Modified: 2026-11-05 First seen: 2026-11-05 Status: active

Attack Surface

Low Complexity No Interaction

CVSS Vector Breakdown

AV: Local

AC: Low

PR: Low

UI: None

S: Unchanged

C: None

I: None

A: High

Description

In the Linux kernel, the following vulnerability has been resolved: cxl: fix possible null-ptr-deref in cxl_pci_init_afu|adapter() If device_register() fails in cxl_pci_afu|adapter(), the device is not added, device_unregister() can not be called in the error path, otherwise it will cause a null-ptr-deref because of removing not added device. As comment of device_register() says, it should use put_device() to give up the reference in the error path. So split device_unregister() into device_del() and put_device(), then goes to put dev when register fails.

Weakness Classification (1)

CWE-476

Affected Software (11)

Vendor	Product	Version
Linux	Linux	f204e0b8cedd7da1dfcfd05ed6b7692737e24029 < 82e68432668ae75b4c814d160f6987ecb0681273
Linux	Linux	f204e0b8cedd7da1dfcfd05ed6b7692737e24029 < 82e5481428faf11c79b9c094dd24a1849bbf64ac
Linux	Linux	f204e0b8cedd7da1dfcfd05ed6b7692737e24029 < c4b2e35df919d99bbbed033c2fa0b607f9f463b5
Linux	Linux	f204e0b8cedd7da1dfcfd05ed6b7692737e24029 < 361412dae1690d4b5df6f92fc943cdc773c95cbc
Linux	Linux	f204e0b8cedd7da1dfcfd05ed6b7692737e24029 < 0f63c0ddc2ea20d783d29243f4dbe0f9e95dfdec
Linux	Linux	f204e0b8cedd7da1dfcfd05ed6b7692737e24029 < 22511eefa61db26e12c97dd7ada3071dbdfcb004
Linux	Linux	f204e0b8cedd7da1dfcfd05ed6b7692737e24029 < 139abd4c626a6f7ce02789ed5f73aa2256e0542b
Linux	Linux	f204e0b8cedd7da1dfcfd05ed6b7692737e24029 < 2f5fd31b2f24b9b8a80ab566fd8c4e1e94cb4339
Linux	Linux	f204e0b8cedd7da1dfcfd05ed6b7692737e24029 < 02cd3032b154fa02fdf90e7467abaeed889330b2
Linux	Linux	3.18
linux	linux_kernel	3.18 – 4.9.337