Linux Kernel up to 6.16.0 VFs be_cmd_set_mac_list denial of service

CVSS Meta Temp Score
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CTI Interest Score
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5.0$0-$5k0.00

Summaryinfo

A vulnerability classified as critical has been found in Linux Kernel up to 6.1.147/6.6.101/6.12.41/6.15.9/6.16.0. The impacted element is the function be_cmd_set_mac_list of the component VFs Handler. Performing a manipulation results in denial of service. This vulnerability was named CVE-2025-38569. There is no available exploit. It is recommended to upgrade the affected component.

Detailsinfo

A vulnerability was found in Linux Kernel up to 6.1.147/6.6.101/6.12.41/6.15.9/6.16.0. It has been classified as critical. This affects the function be_cmd_set_mac_list of the component VFs Handler. The manipulation with an unknown input leads to a denial of service vulnerability. CWE is classifying the issue as CWE-404. The product does not release or incorrectly releases a resource before it is made available for re-use. This is going to have an impact on availability. The summary by CVE is:

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.

The advisory is shared at git.kernel.org. This vulnerability is uniquely identified as CVE-2025-38569 since 04/16/2025. The exploitability is told to be difficult. Technical details are known, but no exploit is available.

The vulnerability scanner Nessus provides a plugin with the ID 265986 (Ubuntu 22.04 LTS / 24.04 LTS : Linux kernel (IBM) vulnerabilities (USN-7779-1)), which helps to determine the existence of the flaw in a target environment.

Upgrading to version 6.1.148, 6.6.102, 6.12.42, 6.15.10, 6.16.1 or 6.17-rc1 eliminates this vulnerability. Applying the patch 46d44a23a3723a89deeb65b13cddb17f8d9f2700/c377ba2be9430d165a98e4b782902ed630bc7546/0ddfe8b127ef1149fddccb79db6e6eaba7738e7d/d5dc09ee5d74277bc47193fe28ce8703e229331b/f4e4e0c4bc4d799d6fa39055acdbc3af066cd13e/5a40f8af2ba1b9bdf46e2db10e8c9710538fbc63 is able to eliminate this problem. The bugfix is ready for download at git.kernel.org. The best possible mitigation is suggested to be upgrading to the latest version.

The vulnerability is also documented in the databases at Tenable (265986), EUVD (EUVD-2025-26103) and CERT Bund (WID-SEC-2025-1869). If you want to get the best quality for vulnerability data then you always have to consider VulDB.

Affected

  • Debian Linux
  • Amazon Linux 2
  • Red Hat Enterprise Linux
  • Ubuntu Linux
  • SUSE Linux
  • Oracle Linux
  • SUSE openSUSE
  • RESF Rocky Linux
  • Dell Avamar
  • Open Source Linux Kernel
  • Dell NetWorker
  • Dell Secure Connect Gateway
  • IBM QRadar SIEM

Productinfo

Type

Vendor

Name

Version

License

Website

CPE 2.3info

CPE 2.2info

CVSSv4info

VulDB Vector: 🔒
VulDB Reliability: 🔍

CVSSv3info

VulDB Meta Base Score: 5.1
VulDB Meta Temp Score: 5.0

VulDB Base Score: 4.8
VulDB Temp Score: 4.6
VulDB Vector: 🔒
VulDB Reliability: 🔍

NVD Base Score: 5.5
NVD Vector: 🔒

CVSSv2info

AVACAuCIA
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💳💳💳💳💳💳
💳💳💳💳💳💳
VectorComplexityAuthenticationConfidentialityIntegrityAvailability
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VulDB Base Score: 🔒
VulDB Temp Score: 🔒
VulDB Reliability: 🔍

Exploitinginfo

Class: Denial of service
CWE: CWE-404
CAPEC: 🔒
ATT&CK: 🔒

Physical: Partially
Local: Yes
Remote: Partially

Availability: 🔒
Status: Not defined

EPSS Score: 🔒
EPSS Percentile: 🔒

Price Prediction: 🔍
Current Price Estimation: 🔒

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Nessus ID: 265986
Nessus Name: Ubuntu 22.04 LTS / 24.04 LTS : Linux kernel (IBM) vulnerabilities (USN-7779-1)

Threat Intelligenceinfo

Interest: 🔍
Active Actors: 🔍
Active APT Groups: 🔍

Countermeasuresinfo

Recommended: Upgrade
Status: 🔍

0-Day Time: 🔒

Upgrade: Kernel 6.1.148/6.6.102/6.12.42/6.15.10/6.16.1/6.17-rc1
Patch: 46d44a23a3723a89deeb65b13cddb17f8d9f2700/c377ba2be9430d165a98e4b782902ed630bc7546/0ddfe8b127ef1149fddccb79db6e6eaba7738e7d/d5dc09ee5d74277bc47193fe28ce8703e229331b/f4e4e0c4bc4d799d6fa39055acdbc3af066cd13e/5a40f8af2ba1b9bdf46e2db10e8c9710538fbc63

Timelineinfo

04/16/2025 CVE reserved
08/19/2025 +125 days Advisory disclosed
08/19/2025 +0 days VulDB entry created
01/09/2026 +143 days VulDB entry last update

Sourcesinfo

Vendor: kernel.org

Advisory: git.kernel.org
Status: Confirmed

CVE: CVE-2025-38569 (🔒)
GCVE (CVE): GCVE-0-2025-38569
GCVE (VulDB): GCVE-100-320613
EUVD: 🔒
CERT Bund: WID-SEC-2025-1869 - Linux Kernel: Mehrere Schwachstellen

Entryinfo

Created: 08/19/2025 19:31
Updated: 01/09/2026 05:49
Changes: 08/19/2025 19:31 (59), 09/22/2025 06:31 (7), 09/23/2025 04:50 (1), 09/24/2025 16:02 (1), 09/27/2025 03:29 (2), 10/27/2025 00:25 (1), 11/01/2025 12:35 (1), 12/15/2025 22:29 (1), 01/09/2026 05:43 (1), 01/09/2026 05:49 (13)
Complete: 🔍
Cache ID: 216::103

If you want to get the best quality for vulnerability data then you always have to consider VulDB.

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