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CVE-2025-38239

7.3 · HIGH

In the Linux kernel, the following vulnerability has been resolved: scsi: megaraid_sas: Fix invalid node index On a system with DRAM interleave enabled, out-of-bound access is detected: megaraid…

Published Jul 9, 2025CWE-129EPSS 0.18%

Overview

CVE-2025-38239 is a high-severity vulnerability. It was published on July 9, 2025 and has a CVSS 3.1 base score of 7.3 (HIGH).

This vulnerability has a CVSS 3.1 base score of 7.3, 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:

scsi: megaraid_sas: Fix invalid node index

On a system with DRAM interleave enabled, out-of-bound access is

detected:

megaraid_sas 0000:3f:00.0: requested/available msix 128/128 poll_queue 0

------------[ cut here ]------------

UBSAN: array-index-out-of-bounds in ./arch/x86/include/asm/topology.h:72:28

index -1 is out of range for type 'cpumask *[1024]'

dump_stack_lvl+0x5d/0x80

ubsan_epilogue+0x5/0x2b

__ubsan_handle_out_of_bounds.cold+0x46/0x4b

megasas_alloc_irq_vectors+0x149/0x190 [megaraid_sas]

megasas_probe_one.cold+0xa4d/0x189c [megaraid_sas]

local_pci_probe+0x42/0x90

pci_device_probe+0xdc/0x290

really_probe+0xdb/0x340

__driver_probe_device+0x78/0x110

driver_probe_device+0x1f/0xa0

__driver_attach+0xba/0x1c0

bus_for_each_dev+0x8b/0xe0

bus_add_driver+0x142/0x220

driver_register+0x72/0xd0

megasas_init+0xdf/0xff0 [megaraid_sas]

do_one_initcall+0x57/0x310

do_init_module+0x90/0x250

init_module_from_file+0x85/0xc0

idem

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/074efb35552556a4b3b25eedab076d5dc24a8199Refgit.kernel.org/stable/c/19a47c966deb36624843b7301f0373a3dc541a05Refgit.kernel.org/stable/c/752eb816b55adb0673727ba0ed96609a17895654Refgit.kernel.org/stable/c/bf2c1643abc3b2507d56bb6c22bf9897272f8a35Refgit.kernel.org/stable/c/f1064b3532192e987ab17be7281d5fee36fd25e1Reflists.debian.org/debian-lts-announce/2025/10/msg00008.html

How CyberStrike helps

Frequently asked questions

What is CVE-2025-38239?

CVE-2025-38239 is a high-severity vulnerability. It was published on July 9, 2025 and has a CVSS 3.1 base score of 7.3 (HIGH).

How severe is CVE-2025-38239?

This vulnerability has a CVSS 3.1 base score of 7.3, 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-2025-38239?

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-2025-38239?

CyberStrike is an open-source, AI-augmented pentesting engine. Rather than flag a version number, it tests whether an issue like CVE-2025-38239 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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