---
id: CVE-2025-38569
title: 'benet: fix BUG when creating VFs'
summary: |-
  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
   C…
severity: none
vendor: Linux
product: Linux
affected:
  - >-
    Linux >= 797bb9439c0489bbea4b8808297ec7a569098667 <
    3697e37e012bbd2bb5a5b467689811ba097b2eff
  - >-
    Linux >= 7cfae8627511361f90a1a22dfae556c3fbc5bd8d <
    975e73b9102d844a3dc3f091ad631c56145c8b4c
  - >-
    Linux >= 671aaa17bd3153e25526934f92307169ce927b5e <
    f80b34ebc579216407b128e9d155bfcae875c30f
  - >-
    Linux >= 4393452e6c0c027971ec9bcc9557f52e63db3f0a <
    46d44a23a3723a89deeb65b13cddb17f8d9f2700
  - >-
    Linux >= 41d731e7920387ea13e2fb440a1e235686faeeb9 <
    c377ba2be9430d165a98e4b782902ed630bc7546
  - >-
    Linux >= fd1ef3b1bdd3fec683ebd19eb3acc6a2cb60b5c6 <
    0ddfe8b127ef1149fddccb79db6e6eaba7738e7d
  - >-
    Linux >= 1a82d19ca2d6835904ee71e2d40fd331098f94a0 <
    d5dc09ee5d74277bc47193fe28ce8703e229331b
  - >-
    Linux >= 1a82d19ca2d6835904ee71e2d40fd331098f94a0 <
    f4e4e0c4bc4d799d6fa39055acdbc3af066cd13e
  - >-
    Linux >= 1a82d19ca2d6835904ee71e2d40fd331098f94a0 <
    5a40f8af2ba1b9bdf46e2db10e8c9710538fbc63
  - Linux 227a829c9067bf03b1967e7e0b1a6777fd57edef
  - Linux >= 5.4.291 < 5.4.297
  - Linux >= 5.10.235 < 5.10.241
  - Linux >= 5.15.179 < 5.15.190
  - Linux >= 6.1.131 < 6.1.148
  - Linux >= 6.6.83 < 6.6.102
  - Linux >= 6.12.19 < 6.12.42
  - Linux >= 6.13.7 < 6.14
  - Linux 6.14
ssvc:
  exploitation: none
  automatable: 'no'
  technicalImpact: partial
  timestamp: '2026-11-05T21:04:11.258637Z'
published: '2025-08-19'
updated: '2026-11-05'
sourceUpdated: '2026-11-05T21:12:47.562Z'
source: CVEORG
sourceUrl: 'https://www.cve.org/CVERecord?id=CVE-2025-38569'
references:
  - url: 'https://git.kernel.org/stable/c/3697e37e012bbd2bb5a5b467689811ba097b2eff'
  - url: 'https://git.kernel.org/stable/c/975e73b9102d844a3dc3f091ad631c56145c8b4c'
  - url: 'https://git.kernel.org/stable/c/f80b34ebc579216407b128e9d155bfcae875c30f'
  - url: 'https://git.kernel.org/stable/c/46d44a23a3723a89deeb65b13cddb17f8d9f2700'
  - url: 'https://git.kernel.org/stable/c/c377ba2be9430d165a98e4b782902ed630bc7546'
  - url: 'https://git.kernel.org/stable/c/0ddfe8b127ef1149fddccb79db6e6eaba7738e7d'
  - url: 'https://git.kernel.org/stable/c/d5dc09ee5d74277bc47193fe28ce8703e229331b'
  - url: 'https://git.kernel.org/stable/c/f4e4e0c4bc4d799d6fa39055acdbc3af066cd13e'
  - url: 'https://git.kernel.org/stable/c/5a40f8af2ba1b9bdf46e2db10e8c9710538fbc63'
tags:
  - cve.org
epss: 0.00183
epssPercentile: 0.079
ingestedAt: '2026-11-05T22:38:31.995Z'
---

## Overview

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.

## Affected

- `Linux >= 797bb9439c0489bbea4b8808297ec7a569098667 < 3697e37e012bbd2bb5a5b467689811ba097b2eff`
- `Linux >= 7cfae8627511361f90a1a22dfae556c3fbc5bd8d < 975e73b9102d844a3dc3f091ad631c56145c8b4c`
- `Linux >= 671aaa17bd3153e25526934f92307169ce927b5e < f80b34ebc579216407b128e9d155bfcae875c30f`
- `Linux >= 4393452e6c0c027971ec9bcc9557f52e63db3f0a < 46d44a23a3723a89deeb65b13cddb17f8d9f2700`
- `Linux >= 41d731e7920387ea13e2fb440a1e235686faeeb9 < c377ba2be9430d165a98e4b782902ed630bc7546`
- `Linux >= fd1ef3b1bdd3fec683ebd19eb3acc6a2cb60b5c6 < 0ddfe8b127ef1149fddccb79db6e6eaba7738e7d`
- `Linux >= 1a82d19ca2d6835904ee71e2d40fd331098f94a0 < d5dc09ee5d74277bc47193fe28ce8703e229331b`
- `Linux >= 1a82d19ca2d6835904ee71e2d40fd331098f94a0 < f4e4e0c4bc4d799d6fa39055acdbc3af066cd13e`
- `Linux >= 1a82d19ca2d6835904ee71e2d40fd331098f94a0 < 5a40f8af2ba1b9bdf46e2db10e8c9710538fbc63`
- `Linux 227a829c9067bf03b1967e7e0b1a6777fd57edef`
- `Linux >= 5.4.291 < 5.4.297`
- `Linux >= 5.10.235 < 5.10.241`
- `Linux >= 5.15.179 < 5.15.190`
- `Linux >= 6.1.131 < 6.1.148`
- `Linux >= 6.6.83 < 6.6.102`
- `Linux >= 6.12.19 < 6.12.42`
- `Linux >= 6.13.7 < 6.14`
- `Linux 6.14`

## Remediation

Refer to the linked advisories for vendor-supplied fixes and affected version ranges.