PT-2025-37498 · Linux+2 · Linux Kernel+2

Published 2022-11-23 · Updated 2025-11-24 · CVE-2022-50244

Positive Technologies (AI Summary)

CVSS v3.1

5.5

Medium

Base vector

AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H

Name of the Vulnerable Software and Affected Versions Linux kernel (affected versions not specified)

Description The Linux kernel contains a flaw in the cxl subsystem where a null pointer dereference may occur in the cxl pci init afu|adapter function. Specifically, if device register() fails, the device is not added, and device unregister() may be called in the error path, leading to a null pointer dereference when attempting to remove a device that was not added. The issue arises because the reference count is not properly managed in the error path.

Recommendations At the moment, there is no information about a newer version that contains a fix for this vulnerability.

Exploit

NULL Pointer Dereference

Weakness Enumeration

CWE-476

Related Identifiers

BDU:2026-05951

CVE-2022-50244

SUSE-SU-2025:03614-1

Affected Products

Astra Linux

Linux Kernel

Suse

References · 424

• 🔥 https://github.com/CVEProject/cvelistV5/tree/main/cves/2022/50xxx/CVE-2022-50244.json · Exploit
• https://git.kernel.org/stable/c/0f63c0ddc2ea20d783d29243f4dbe0f9e95dfdec · Patch
• https://nvd.nist.gov/vuln/detail/CVE-2022-50244 · Security Note
• https://git.kernel.org/stable/c/82e5481428faf11c79b9c094dd24a1849bbf64ac · Patch
• https://git.kernel.org/stable/c/139abd4c626a6f7ce02789ed5f73aa2256e0542b · Patch
• https://git.kernel.org/stable/c/c4b2e35df919d99bbbed033c2fa0b607f9f463b5 · Patch
• https://git.kernel.org/stable/c/361412dae1690d4b5df6f92fc943cdc773c95cbc · Patch
• https://osv.dev/vulnerability/UBUNTU-CVE-2022-50244 · Vendor Advisory
• https://git.kernel.org/stable/c/2f5fd31b2f24b9b8a80ab566fd8c4e1e94cb4339 · Patch
• https://bdu.fstec.ru/vul/2026-05951 · Security Note
• https://git.kernel.org/stable/c/02cd3032b154fa02fdf90e7467abaeed889330b2 · Patch
• https://cve.org/CVERecord?id=CVE-2022-50244 · Security Note
• https://osv.dev/vulnerability/CVE-2022-50244 · Vendor Advisory
• https://git.kernel.org/stable/c/82e68432668ae75b4c814d160f6987ecb0681273 · Patch
• https://osv.dev/vulnerability/SUSE-SU-2025:03614-1 · Vendor Advisory