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CVE-2025-38050

5.5 · MEDIUM

In the Linux kernel, the following vulnerability has been resolved: mm/hugetlb: fix kernel NULL pointer dereference when replacing free hugetlb folios A kernel crash was observed when replacing f…

Published Jun 18, 2025CWE-476EPSS 0.16%

Overview

CVE-2025-38050 is a medium-severity vulnerability. 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:

mm/hugetlb: fix kernel NULL pointer dereference when replacing free hugetlb folios

A kernel crash was observed when replacing free hugetlb folios:

BUG: kernel NULL pointer dereference, address: 0000000000000028

PGD 0 P4D 0

Oops: Oops: 0000 [#1] SMP NOPTI

CPU: 28 UID: 0 PID: 29639 Comm: test_cma.sh Tainted 6.15.0-rc6-zp #41 PREEMPT(voluntary)

RIP: 0010:alloc_and_dissolve_hugetlb_folio+0x1d/0x1f0

RSP: 0018:ffffc9000b30fa90 EFLAGS: 00010286

RAX: 0000000000000000 RBX: 0000000000342cca RCX: ffffea0043000000

RDX: ffffc9000b30fb08 RSI: ffffea0043000000 RDI: 0000000000000000

RBP: ffffc9000b30fb20 R08: 0000000000001000 R09: 0000000000000000

R10: ffff88886f92eb00 R11: 0000000000000000 R12: ffffea0043000000

R13: 0000000000000000 R14: 00000000010c0200 R15: 0000000000000004

FS: 00007fcda5f14740(0000) GS:ffff8888ec1d8000(0000) knlGS:0000000000000000

CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033

CR2: 0000000000000028 CR3: 000

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.

Frequently asked questions

What is CVE-2025-38050?

CVE-2025-38050 is a medium-severity vulnerability. It was published on June 18, 2025 and has a CVSS 3.1 base score of 5.5 (MEDIUM).

How severe is CVE-2025-38050?

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-2025-38050?

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-2025-38050?

CyberStrike is an open-source, AI-augmented pentesting engine. Rather than flag a version number, it tests whether an issue like CVE-2025-38050 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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