CVE-2022-50244 — NULL Pointer Dereference in Linux

CWE-476 — NULL Pointer Dereference5 documents5 sources
Severity
5.5MEDIUMNVD
EPSS
0.0%
top 96.24%
CISA KEV
Not in KEV
Exploit
No known exploits
Affected products
3
LinuxLinux KernelDebian Linux
Timeline
PublishedSep 15

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_de…

CVSS vector

CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:HExploitability: 1.8 | Impact: 3.6

Affected Packages4 packages

▶NVDlinux/linux_kernel3.18 — 4.9.337+7
▶Debianlinux/linux_kernel< 5.10.178-1+3
▶CVEListV5linux/linuxf204e0b8cedd7da1dfcfd05ed6b7692737e24029 — 82e68432668ae75b4c814d160f6987ecb0681273+9
▶debiandebian/linux< linux 6.1.4-1 (bookworm)

Patches

Patch: git.kernel.org ↗Patch: git.kernel.org ↗Patch: git.kernel.org ↗

🔴Vulnerability Details

2
OSV
CVE-2022-50244: 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(↗2025-09-15
▶
GHSA
GHSA-jfcj-m759-47m9: In the Linux kernel, the following vulnerability has been resolved: cxl: fix possible null-ptr-deref in cxl_pci_init_afu|adapter() If device_registe↗2025-09-15
▶

📋Vendor Advisories

2
Red Hat
kernel: cxl: fix possible null-ptr-deref in cxl_pci_init_afu|adapter()↗2025-09-15
▶
Debian
CVE-2022-50244: linux - In the Linux kernel, the following vulnerability has been resolved: cxl: fix po...↗2022
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CVE-2022-50244 — NULL Pointer Dereference in Linux | cvebase