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CVE-2022-49228

5.5 · MEDIUM
Published Feb 26, 2025 linux CWE-476 EPSS 0.25% (17th pctl)

Overview

CVE-2022-49228 is a medium-severity vulnerability affecting linux linux_kernel. It was published on February 26, 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:

bpf: Fix a btf decl_tag bug when tagging a function

syzbot reported a btf decl_tag bug with stack trace below:

general protection fault, probably for non-canonical address 0xdffffc0000000000: 0000 [#1] PREEMPT SMP KASAN

KASAN: null-ptr-deref in range [0x0000000000000000-0x0000000000000007]

CPU: 0 PID: 3592 Comm: syz-executor914 Not tainted 5.16.0-syzkaller-11424-gb7892f7d5cb2 #0

Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011

RIP: 0010:btf_type_vlen include/linux/btf.h:231 [inline]

RIP: 0010:btf_decl_tag_resolve+0x83e/0xaa0 kernel/bpf/btf.c:3910

...

Call Trace:

<TASK>

btf_resolve+0x251/0x1020 kernel/bpf/btf.c:4198

btf_check_all_types kernel/bpf/btf.c:4239 [inline]

btf_parse_type_sec kernel/bpf/btf.c:4280 [inline]

btf_parse kernel/bpf/btf.c:4513 [inline]

btf_new_fd+0x19fe/0x2370 kernel/bpf/btf.c:6047

bpf_btf_load kernel/bpf/syscall.c:4039

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 >= 5.16, < 5.16.19 Affected

Frequently Asked Questions

What is CVE-2022-49228?

CVE-2022-49228 is a medium-severity vulnerability affecting linux linux_kernel. It was published on February 26, 2025 and has a CVSS 3.1 base score of 5.5 (MEDIUM).

How severe is CVE-2022-49228?

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-2022-49228?

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-2022-49228?

CyberStrike's AI-powered security agents can automatically detect CVE-2022-49228 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.