FKIE_CVE-2026-80860

Vulnerability from fkie_nvd - Published: 2026-09-04 16:18 - Updated: 2026-10-19 09:17
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
416baaa9-dc9f-4396-8d5f-8c081fb06d67https://git.kernel.org/stable/c/0f930904452945f409eeeb0c9afa08bf27185cb1
416baaa9-dc9f-4396-8d5f-8c081fb06d67https://git.kernel.org/stable/c/26fbe4bc3ef3ab0200407681cbef182af5d151de
416baaa9-dc9f-4396-8d5f-8c081fb06d67https://git.kernel.org/stable/c/67ddf061790e833d7e34f9dc901866c9fb25d72d
416baaa9-dc9f-4396-8d5f-8c081fb06d67https://git.kernel.org/stable/c/ed9c881f3b498383f73c42712b359419da42a7b0
Impacted products
Vendor Product Version
To clipboard 

{
  "affected": [
    {
      "affectedData": [
        {
          "defaultStatus": "unaffected",
          "product": "Linux",
          "programFiles": [
            "fs/fuse/dev.c"
          ],
          "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
          "vendor": "Linux",
          "versions": [
            {
              "lessThan": "67ddf061790e833d7e34f9dc901866c9fb25d72d",
              "status": "affected",
              "version": "1d8ecd0cd696a5df0b2f72046a4ccee5d2a8ec2c",
              "versionType": "git"
            },
            {
              "lessThan": "0f930904452945f409eeeb0c9afa08bf27185cb1",
              "status": "affected",
              "version": "7366e6f4d2b4c7002b13fb01219e83679dad4127",
              "versionType": "git"
            },
            {
              "lessThan": "26fbe4bc3ef3ab0200407681cbef182af5d151de",
              "status": "affected",
              "version": "f8fce75fedf73ac72aa09163deb8f4291fdcaad2",
              "versionType": "git"
            },
            {
              "lessThan": "ed9c881f3b498383f73c42712b359419da42a7b0",
              "status": "affected",
              "version": "f8fce75fedf73ac72aa09163deb8f4291fdcaad2",
              "versionType": "git"
            },
            {
              "status": "affected",
              "version": "893479015cb6442fd389d3b553ab3036c9541715",
              "versionType": "git"
            },
            {
              "lessThan": "6.12.111",
              "status": "affected",
              "version": "6.12.96",
              "versionType": "semver"
            },
            {
              "lessThan": "6.18.51",
              "status": "affected",
              "version": "6.18.39",
              "versionType": "semver"
            },
            {
              "lessThan": "7.2",
              "status": "affected",
              "version": "7.1.4",
              "versionType": "semver"
            }
          ]
        },
        {
          "defaultStatus": "affected",
          "product": "Linux",
          "programFiles": [
            "fs/fuse/dev.c"
          ],
          "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
          "vendor": "Linux",
          "versions": [
            {
              "status": "affected",
              "version": "7.2"
            },
            {
              "lessThan": "7.2",
              "status": "unaffected",
              "version": "0",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "6.12.*",
              "status": "unaffected",
              "version": "6.12.111",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "6.18.*",
              "status": "unaffected",
              "version": "6.18.51",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "7.2.*",
              "status": "unaffected",
              "version": "7.2.3",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "*",
              "status": "unaffected",
              "version": "7.3",
              "versionType": "original_commit_for_fix"
            }
          ]
        }
      ],
      "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67"
    }
  ],
  "cveTags": [],
  "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()"
    }
  ],
  "id": "CVE-2026-80860",
  "lastModified": "2026-10-19T09:17:21.680",
  "metrics": {},
  "published": "2026-09-04T16:18:15.173",
  "references": [
    {
      "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
      "url": "https://git.kernel.org/stable/c/0f930904452945f409eeeb0c9afa08bf27185cb1"
    },
    {
      "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
      "url": "https://git.kernel.org/stable/c/26fbe4bc3ef3ab0200407681cbef182af5d151de"
    },
    {
      "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
      "url": "https://git.kernel.org/stable/c/67ddf061790e833d7e34f9dc901866c9fb25d72d"
    },
    {
      "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
      "url": "https://git.kernel.org/stable/c/ed9c881f3b498383f73c42712b359419da42a7b0"
    }
  ],
  "sourceIdentifier": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
  "vulnStatus": "Received"
}



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