PT-2025-40662 · Linux+3 · Linux Kernel+3

Published 2022-05-10 · Updated 2025-12-04 · CVE-2022-50475

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 versions prior to 4.19.161-mlnx.47.gadcd9e3 #1

Description The Linux kernel contained a flaw in the RDMA/core subsystem where the 'ib port' structure was not properly validated before accessing a sysfs node. This could lead to a kernel NULL pointer dereference, potentially causing a system crash. The issue arises when accessing the sysfs node without a valid 'ib port' structure being set, resulting in an error during access.

Recommendations Update the Linux kernel to version 4.19.161-mlnx.47.gadcd9e3 #1 or a later version to address this issue.

Exploit

Fix

NULL Pointer Dereference

Weakness Enumeration

CWE-476

Related Identifiers

CESA-2022_1988

CESA-2023_7077

CVE-2022-50475

RHSA-2022:1988

RHSA-2022_1988

RHSA-2023:6583

RHSA-2023:7077

RHSA-2023_6583

RHSA-2023_7077

SUSE-SU-2025:4111-1

SUSE-SU-2025:4139-1

SUSE-SU-2025:4149-1

SUSE-SU-2025:4320-1

Affected Products

Centos

Linux Kernel

Red Hat

Suse

References · 447

• 🔥 https://github.com/CVEProject/cvelistV5/tree/main/cves/2022/50xxx/CVE-2022-50475.json · Exploit
• https://osv.dev/vulnerability/SUSE-SU-2025:4320-1 · Vendor Advisory
• https://osv.dev/vulnerability/DEBIAN-CVE-2022-50475 · Vendor Advisory
• https://git.kernel.org/stable/c/5e15ff29b156bbbdeadae230c8ecd5ecd8ca2477 · Patch
• https://cve.org/CVERecord?id=CVE-2022-50475 · Security Note
• https://ubuntu.com/security/CVE-2022-50475 · Vendor Advisory
• https://git.kernel.org/stable/c/ac7a7d7079124f46180714b2d41a1703d37101bb · Patch
• https://osv.dev/vulnerability/CVE-2022-50475 · Vendor Advisory
• https://nvd.nist.gov/vuln/detail/CVE-2022-50475 · Security Note
• https://security-tracker.debian.org/tracker/CVE-2022-50475 · Vendor Advisory
• https://git.kernel.org/stable/c/f981c697b2f9bd5dd2f060e47ff8b5e0a2cd0c06 · Patch
• https://git.kernel.org/stable/c/cd06d32a71fbb198b2d43dddf794badd80ffd25d · Patch
• https://osv.dev/vulnerability/UBUNTU-CVE-2022-50475 · Vendor Advisory
• https://osv.dev/vulnerability/SUSE-SU-2025:4139-1 · Vendor Advisory
• https://osv.dev/vulnerability/SUSE-SU-2025:4111-1 · Vendor Advisory