---
id: CVE-2025-39783
title: 'PCI: endpoint: Fix configfs group list head handling'
summary: |-
  In the Linux kernel, the following vulnerability has been resolved:

  PCI: endpoint: Fix configfs group list head handling

  Doing a list_del() on the epf_group field of struct pci_epf_driver in
  pci_epf_remove_cfs() is not correct as this …
severity: none
vendor: Linux
product: Linux
affected:
  - >-
    Linux >= ef1433f717a2c63747a519d86965d73ff9bd08b3 <
    80ea6e6904fb2ba4ccb5d909579988466ec65358
  - >-
    Linux >= ef1433f717a2c63747a519d86965d73ff9bd08b3 <
    d5aecddc3452371d9da82cdbb0c715812524b54b
  - >-
    Linux >= ef1433f717a2c63747a519d86965d73ff9bd08b3 <
    dc4ffbd571716ff3b171418fb03abe80e720a7b1
  - >-
    Linux >= ef1433f717a2c63747a519d86965d73ff9bd08b3 <
    409af8b9f7b4f23cd0464e71c6cd6fe13c076ae2
  - >-
    Linux >= ef1433f717a2c63747a519d86965d73ff9bd08b3 <
    0758862386f114d9ab1e23181461bd1e2e9ec4c6
  - >-
    Linux >= ef1433f717a2c63747a519d86965d73ff9bd08b3 <
    6cf65505523224cab1449d726d2ce8180c2941ee
  - >-
    Linux >= ef1433f717a2c63747a519d86965d73ff9bd08b3 <
    a302bd89db35d8b7e279de4d2b41c16c7f191069
  - >-
    Linux >= ef1433f717a2c63747a519d86965d73ff9bd08b3 <
    d79123d79a8154b4318529b7b2ff7e15806f480b
  - Linux 4.18
published: '2025-09-11'
updated: '2026-10-15'
sourceUpdated: '2026-10-15T01:08:19.552Z'
source: CVEORG
sourceUrl: 'https://www.cve.org/CVERecord?id=CVE-2025-39783'
references:
  - url: 'https://git.kernel.org/stable/c/80ea6e6904fb2ba4ccb5d909579988466ec65358'
  - url: 'https://git.kernel.org/stable/c/d5aecddc3452371d9da82cdbb0c715812524b54b'
  - url: 'https://git.kernel.org/stable/c/dc4ffbd571716ff3b171418fb03abe80e720a7b1'
  - url: 'https://git.kernel.org/stable/c/409af8b9f7b4f23cd0464e71c6cd6fe13c076ae2'
  - url: 'https://git.kernel.org/stable/c/0758862386f114d9ab1e23181461bd1e2e9ec4c6'
  - url: 'https://git.kernel.org/stable/c/6cf65505523224cab1449d726d2ce8180c2941ee'
  - url: 'https://git.kernel.org/stable/c/a302bd89db35d8b7e279de4d2b41c16c7f191069'
  - url: 'https://git.kernel.org/stable/c/d79123d79a8154b4318529b7b2ff7e15806f480b'
tags:
  - cve.org
epss: 0.00167
epssPercentile: 0.05899
ingestedAt: '2026-10-15T05:52:46.077Z'
---

## Overview

In the Linux kernel, the following vulnerability has been resolved:

PCI: endpoint: Fix configfs group list head handling

Doing a list_del() on the epf_group field of struct pci_epf_driver in
pci_epf_remove_cfs() is not correct as this field is a list head, not
a list entry. This list_del() call triggers a KASAN warning when an
endpoint function driver which has a configfs attribute group is torn
down:

==================================================================
BUG: KASAN: slab-use-after-free in pci_epf_remove_cfs+0x17c/0x198
Write of size 8 at addr ffff00010f4a0d80 by task rmmod/319

CPU: 3 UID: 0 PID: 319 Comm: rmmod Not tainted 6.16.0-rc2 #1 NONE
Hardware name: Radxa ROCK 5B (DT)
Call trace:
show_stack+0x2c/0x84 (C)
dump_stack_lvl+0x70/0x98
print_report+0x17c/0x538
kasan_report+0xb8/0x190
__asan_report_store8_noabort+0x20/0x2c
pci_epf_remove_cfs+0x17c/0x198
pci_epf_unregister_driver+0x18/0x30
nvmet_pci_epf_cleanup_module+0x24/0x30 [nvmet_pci_epf]
__arm64_sys_delete_module+0x264/0x424
invoke_syscall+0x70/0x260
el0_svc_common.constprop.0+0xac/0x230
do_el0_svc+0x40/0x58
el0_svc+0x48/0xdc
el0t_64_sync_handler+0x10c/0x138
el0t_64_sync+0x198/0x19c
...

Remove this incorrect list_del() call from pci_epf_remove_cfs().

## Affected

- `Linux >= ef1433f717a2c63747a519d86965d73ff9bd08b3 < 80ea6e6904fb2ba4ccb5d909579988466ec65358`
- `Linux >= ef1433f717a2c63747a519d86965d73ff9bd08b3 < d5aecddc3452371d9da82cdbb0c715812524b54b`
- `Linux >= ef1433f717a2c63747a519d86965d73ff9bd08b3 < dc4ffbd571716ff3b171418fb03abe80e720a7b1`
- `Linux >= ef1433f717a2c63747a519d86965d73ff9bd08b3 < 409af8b9f7b4f23cd0464e71c6cd6fe13c076ae2`
- `Linux >= ef1433f717a2c63747a519d86965d73ff9bd08b3 < 0758862386f114d9ab1e23181461bd1e2e9ec4c6`
- `Linux >= ef1433f717a2c63747a519d86965d73ff9bd08b3 < 6cf65505523224cab1449d726d2ce8180c2941ee`
- `Linux >= ef1433f717a2c63747a519d86965d73ff9bd08b3 < a302bd89db35d8b7e279de4d2b41c16c7f191069`
- `Linux >= ef1433f717a2c63747a519d86965d73ff9bd08b3 < d79123d79a8154b4318529b7b2ff7e15806f480b`
- `Linux 4.18`

## Remediation

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