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CVE-2022-49548

7.8 · HIGH

In the Linux kernel, the following vulnerability has been resolved: bpf: Fix potential array overflow in bpf_trampoline_get_progs() The cnt value in the 'cnt >= BPF_MAX_TRAMP_PROGS' check does no…

Published Feb 26, 2025CWE-129EPSS 0.30%

Overview

CVE-2022-49548 is a high-severity vulnerability. It was published on February 26, 2025 and has a CVSS 3.1 base score of 7.8 (HIGH).

This vulnerability has a CVSS 3.1 base score of 7.8, rated HIGH. 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 potential array overflow in bpf_trampoline_get_progs()

The cnt value in the 'cnt >= BPF_MAX_TRAMP_PROGS' check does not

include BPF_TRAMP_MODIFY_RETURN bpf programs, so the number of

the attached BPF_TRAMP_MODIFY_RETURN bpf programs in a trampoline

can exceed BPF_MAX_TRAMP_PROGS.

When this happens, the assignment '*progs++ = aux->prog' in

bpf_trampoline_get_progs() will cause progs array overflow as the

progs field in the bpf_tramp_progs struct can only hold at most

BPF_MAX_TRAMP_PROGS bpf programs.

Remediation

Check the references section for vendor advisories, patches, and mitigation guidance. 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.

References

Refgit.kernel.org/stable/c/32c4559c61652f24c9fdd5440342196fe37453bcRefgit.kernel.org/stable/c/4f8897bcc20b9ae44758e0572538d741ab66f0dcRefgit.kernel.org/stable/c/7f845de2863334bed4f362e95853f5e7bc323737Refgit.kernel.org/stable/c/a2aa95b71c9bbec793b5c5fa50f0a80d882b3e8dRefgit.kernel.org/stable/c/e36452d5da6325df7c10cffc60a9e68d21e2606d

How CyberStrike helps

Frequently asked questions

What is CVE-2022-49548?

CVE-2022-49548 is a high-severity vulnerability. It was published on February 26, 2025 and has a CVSS 3.1 base score of 7.8 (HIGH).

How severe is CVE-2022-49548?

This vulnerability has a CVSS 3.1 base score of 7.8, rated HIGH. It requires local or adjacent network access to exploit. Some level of privileges is required for exploitation.

How do I fix or remediate CVE-2022-49548?

Check the references section for vendor advisories, patches, and mitigation guidance. 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-2022-49548?

CyberStrike is an open-source, AI-augmented pentesting engine. Rather than flag a version number, it tests whether an issue like CVE-2022-49548 is actually reachable in your own applications and APIs, then verifies each finding before reporting it. That tells you if the weakness is a real, exploitable risk in your environment or a false positive you can safely deprioritize.

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