---
id: CVE-2026-80860
title: |-
  In the Linux kernel, the following vulnerability has been resolved:

  fuse: fix race between interrupt and resend

  After commit f8fce75fedf7 ("fuse: clear intr_entry in fuse_resend and
  fuse_remove_pending_req") the WARN_ON(!list_empty(&re…
summary: |-
  In the Linux kernel, the following vulnerability has been resolved:

  fuse: fix race between interrupt and resend

  After commit f8fce75fedf7 ("fuse: clear intr_entry in fuse_resend and
  fuse_remove_pending_req") the WARN_ON(!list_empty(&re…
severity: none
vendor: Linux
product: Linux
affected:
  - >-
    Linux >= 1d8ecd0cd696a5df0b2f72046a4ccee5d2a8ec2c <
    67ddf061790e833d7e34f9dc901866c9fb25d72d
  - >-
    Linux >= 7366e6f4d2b4c7002b13fb01219e83679dad4127 <
    0f930904452945f409eeeb0c9afa08bf27185cb1
  - >-
    Linux >= f8fce75fedf73ac72aa09163deb8f4291fdcaad2 <
    26fbe4bc3ef3ab0200407681cbef182af5d151de
  - >-
    Linux >= f8fce75fedf73ac72aa09163deb8f4291fdcaad2 <
    ed9c881f3b498383f73c42712b359419da42a7b0
  - Linux 893479015cb6442fd389d3b553ab3036c9541715
  - Linux >= 6.12.96 < 6.12.111
  - Linux >= 6.18.39 < 6.18.51
  - Linux >= 7.1.4 < 7.2
  - Linux 7.2
published: '2026-09-04'
updated: '2026-09-21'
sourceUpdated: '2026-09-21T14:17:21.050'
source: NVD
sourceUrl: 'https://nvd.nist.gov/vuln/detail/CVE-2026-80860'
references:
  - url: 'https://git.kernel.org/stable/c/0f930904452945f409eeeb0c9afa08bf27185cb1'
    label: 416baaa9-dc9f-4396-8d5f-8c081fb06d67
  - url: 'https://git.kernel.org/stable/c/26fbe4bc3ef3ab0200407681cbef182af5d151de'
    label: 416baaa9-dc9f-4396-8d5f-8c081fb06d67
  - url: 'https://git.kernel.org/stable/c/67ddf061790e833d7e34f9dc901866c9fb25d72d'
    label: 416baaa9-dc9f-4396-8d5f-8c081fb06d67
  - url: 'https://git.kernel.org/stable/c/ed9c881f3b498383f73c42712b359419da42a7b0'
    label: 416baaa9-dc9f-4396-8d5f-8c081fb06d67
tags:
  - nvd
  - cve.org
epss: 0.00209
epssPercentile: 0.09778
ingestedAt: '2026-09-11T16:45:47.924Z'
---

## Overview

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

fuse: fix race between interrupt and resend

After commit f8fce75fedf7 ("fuse: clear intr_entry in fuse_resend and
fuse_remove_pending_req") the WARN_ON(!list_empty(&req->intr_entry)) in
fuse_request_free() still triggers due to the following race:

In request_wait_answer()
  if (test_bit(FR_SENT, &req->flags)) -> returns true

In fuse_chan_resend()
  clear_bit(FR_SENT, &req->flags)

In request_wait_answer()
  queue_interrupt(req)

Fix by:

 - move clearing FR_SENT inside fpq->lock

 - move setting FR_PENDING inside fiq->lock

 - recheck FR_SENT after acquiring fiq->lock in fuse_dev_queue_interrupt()

## Remediation

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