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CVE-2022-50057

5.5 · MEDIUM
Published Jun 18, 2025 linux CWE-476 EPSS 0.16% (6th pctl)

Overview

CVE-2022-50057 is a medium-severity vulnerability affecting linux linux_kernel. It was published on June 18, 2025 and has a CVSS 3.1 base score of 5.5 (MEDIUM).

This vulnerability has a CVSS 3.1 base score of 5.5, rated MEDIUM. It requires local or adjacent network access to exploit. Some level of privileges is required for exploitation.

Technical Description

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

fs/ntfs3: Fix NULL deref in ntfs_update_mftmirr

If ntfs_fill_super() wasn't called then sbi->sb will be equal to NULL.

Code should check this ptr before dereferencing. Syzbot hit this issue

via passing wrong mount param as can be seen from log below

Fail log:

ntfs3: Unknown parameter 'iochvrset'

general protection fault, probably for non-canonical address 0xdffffc0000000003: 0000 [#1] PREEMPT SMP KASAN

KASAN: null-ptr-deref in range [0x0000000000000018-0x000000000000001f]

CPU: 1 PID: 3589 Comm: syz-executor210 Not tainted 5.18.0-rc3-syzkaller-00016-gb253435746d9 #0

...

Call Trace:

<TASK>

put_ntfs+0x1ed/0x2a0 fs/ntfs3/super.c:463

ntfs_fs_free+0x6a/0xe0 fs/ntfs3/super.c:1363

put_fs_context+0x119/0x7a0 fs/fs_context.c:469

do_new_mount+0x2b4/0xad0 fs/namespace.c:3044

do_mount fs/namespace.c:3383 [inline]

__do_sys_mount fs/namespace.c:3591 [inline]

Remediation

Check the references section for vendor advisories and patches from linux. Update linux_kernel to the latest patched version. 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.

Affected Products

Vendor Product Versions Status
linux linux_kernel >= 5.15, < 5.15.63 Affected

Frequently Asked Questions

What is CVE-2022-50057?

CVE-2022-50057 is a medium-severity vulnerability affecting linux linux_kernel. It was published on June 18, 2025 and has a CVSS 3.1 base score of 5.5 (MEDIUM).

How severe is CVE-2022-50057?

This vulnerability has a CVSS 3.1 base score of 5.5, rated MEDIUM. It requires local or adjacent network access to exploit. Some level of privileges is required for exploitation.

How do I fix or remediate CVE-2022-50057?

Check the references section for vendor advisories and patches from linux. Update linux_kernel to the latest patched version. 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.

How can CyberStrike help with CVE-2022-50057?

CyberStrike's AI-powered security agents can automatically detect CVE-2022-50057 across your infrastructure using autonomous pentesting, DAST scanning, and HackBrowser. The platform continuously monitors for known vulnerabilities and provides actionable remediation guidance prioritized by real-world exploitability.