CVE-2026-80860 (GCVE-0-2026-80860)
Vulnerability from cvelistv5
Published
2026-09-04 15:55
Modified
2026-10-19 08:44
Severity ?
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(&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()
References
Impacted products
Vendor Product Version
Linux Linux Version: 1d8ecd0cd696a5df0b2f72046a4ccee5d2a8ec2c
Version: 7366e6f4d2b4c7002b13fb01219e83679dad4127
Version: f8fce75fedf73ac72aa09163deb8f4291fdcaad2
Version: f8fce75fedf73ac72aa09163deb8f4291fdcaad2
Version: 893479015cb6442fd389d3b553ab3036c9541715
Version: 6.12.96   ≤
Version: 6.18.39   ≤
Version: 7.1.4   ≤
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          "defaultStatus": "unaffected",
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      "descriptions": [
        {
          "lang": "en",
          "value": "In the Linux kernel, the following vulnerability has been resolved:\n\nfuse: fix race between interrupt and resend\n\nAfter commit f8fce75fedf7 (\"fuse: clear intr_entry in fuse_resend and\nfuse_remove_pending_req\") the WARN_ON(!list_empty(\u0026req-\u003eintr_entry)) in\nfuse_request_free() still triggers due to the following race:\n\nIn request_wait_answer()\n  if (test_bit(FR_SENT, \u0026req-\u003eflags)) -\u003e returns true\n\nIn fuse_chan_resend()\n  clear_bit(FR_SENT, \u0026req-\u003eflags)\n\nIn request_wait_answer()\n  queue_interrupt(req)\n\nFix by:\n\n - move clearing FR_SENT inside fpq-\u003elock\n\n - move setting FR_PENDING inside fiq-\u003elock\n\n - recheck FR_SENT after acquiring fiq-\u003elock in fuse_dev_queue_interrupt()"
        }
      ],
      "providerMetadata": {
        "dateUpdated": "2026-10-19T08:44:54.232Z",
        "orgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
        "shortName": "Linux"
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          "url": "https://git.kernel.org/stable/c/67ddf061790e833d7e34f9dc901866c9fb25d72d"
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          "url": "https://git.kernel.org/stable/c/0f930904452945f409eeeb0c9afa08bf27185cb1"
        },
        {
          "url": "https://git.kernel.org/stable/c/26fbe4bc3ef3ab0200407681cbef182af5d151de"
        },
        {
          "url": "https://git.kernel.org/stable/c/ed9c881f3b498383f73c42712b359419da42a7b0"
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      ],
      "title": "fuse: fix race between interrupt and resend",
      "x_generator": {
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  "cveMetadata": {
    "assignerOrgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
    "assignerShortName": "Linux",
    "cveId": "CVE-2026-80860",
    "datePublished": "2026-09-04T15:55:14.285Z",
    "dateReserved": "2026-08-26T14:34:25.797Z",
    "dateUpdated": "2026-10-19T08:44:54.232Z",
    "state": "PUBLISHED"
  },
  "dataType": "CVE_RECORD",
  "dataVersion": "5.2"
}


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