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CVE-2025-38569

5.5 · MEDIUM
Published Aug 19, 2025 linux CWE-476 EPSS 0.17% (7th pctl)

Overview

CVE-2025-38569 is a medium-severity vulnerability affecting linux linux_kernel. It was published on August 19, 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:

benet: fix BUG when creating VFs

benet crashes as soon as SRIOV VFs are created:

kernel BUG at mm/vmalloc.c:3457!

Oops: invalid opcode: 0000 [#1] SMP KASAN NOPTI

CPU: 4 UID: 0 PID: 7408 Comm: test.sh Kdump: loaded Not tainted 6.16.0+ #1 PREEMPT(voluntary)

[...]

RIP: 0010:vunmap+0x5f/0x70

[...]

Call Trace:

<TASK>

__iommu_dma_free+0xe8/0x1c0

be_cmd_set_mac_list+0x3fe/0x640 [be2net]

be_cmd_set_mac+0xaf/0x110 [be2net]

be_vf_eth_addr_config+0x19f/0x330 [be2net]

be_vf_setup+0x4f7/0x990 [be2net]

be_pci_sriov_configure+0x3a1/0x470 [be2net]

sriov_numvfs_store+0x20b/0x380

kernfs_fop_write_iter+0x354/0x530

vfs_write+0x9b9/0xf60

ksys_write+0xf3/0x1d0

do_syscall_64+0x8c/0x3d0

be_cmd_set_mac_list() calls dma_free_coherent() under a spin_lock_bh.

Fix it by freeing only after the lock has been released.

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 >= 5.4.291, < 5.4.297 Affected

Frequently Asked Questions

What is CVE-2025-38569?

CVE-2025-38569 is a medium-severity vulnerability affecting linux linux_kernel. It was published on August 19, 2025 and has a CVSS 3.1 base score of 5.5 (MEDIUM).

How severe is CVE-2025-38569?

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-2025-38569?

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-2025-38569?

CyberStrike's AI-powered security agents can automatically detect CVE-2025-38569 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.