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NVD / CVE Program· CNA Linux

CVE-2026-80860: fuse: fix race between interrupt and resend

Noroxi assessment

Priority: Monitor (action score 0/100)

  • The sources we track (CISA KEV, Exploit-DB, Metasploit, Nuclei, GitHub) show no public exploit code or exploitation in the wild.
  • Probability of exploitation in the next 30 days: 0.15% (FIRST EPSS).
  • Fixed version: Linux Linux 0f930904452945f409eeeb0c9afa08bf27185cb1, 26fbe4bc3ef3ab0200407681cbef182af5d151de, 6.12.111.

Low priority for now. Upgrade to Linux Linux 0f930904452945f409eeeb0c9afa08bf27185cb1, 26fbe4bc3ef3ab0200407681cbef182af5d151de, 6.12.111 or later.

Generated automatically from the record's data: CVSS (NVD and CNA), CISA KEV and SSVC, FIRST EPSS, exploit sources, fixed versions. How we calculate it

Primary sources: NVD · CVE.org · FIRST EPSS

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()

—No exploit Fix available
Published
Sep 4, 2026
Updated
Oct 19, 2026
EPSS
0.1% · 4th percentile
CWE
—

Report tools

JSON

Action score

0

Monitor

Low priority for now.

CVSS
0 / 40 · —
CISA KEV
0 / 30 · Not listed
EPSS
0 / 30 · 0.1%

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Noroxi analysis

What does it mean in your environment?

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Affected systems

Is your version affected?

Pick the product and type the version you run. It's compared with this record's version ranges in your browser; the version isn't sent anywhere.

—

Versions reported by the vendor

Affected version ranges reported by the assigning authority (Linux). Independent of NVD's CPE analysis and usually ahead of it.

  • Linux Linux

    • 893479015cb6442fd389d3b553ab3036c9541715, 7.2affected
    • 1d8ecd0cd696a5df0b2f72046a4ccee5d2a8ec2c and later · before 67ddf061790e833d7e34f9dc901866c9fb25d72daffected · git
    • 7366e6f4d2b4c7002b13fb01219e83679dad4127 and later · before 0f930904452945f409eeeb0c9afa08bf27185cb1affected · git
    • f8fce75fedf73ac72aa09163deb8f4291fdcaad2 and later · before 26fbe4bc3ef3ab0200407681cbef182af5d151deaffected · git
    • f8fce75fedf73ac72aa09163deb8f4291fdcaad2 and later · before ed9c881f3b498383f73c42712b359419da42a7b0affected · git
    • 6.12.96 and later · before 6.12.111affected · semver
    • 6.18.39 and later · before 6.18.51affected · semver
    • 7.1.4 and later · before 7.2affected · semver
    • before 7.2not affected · semver
    • 6.12.111 and later · up to and including 6.12.*not affected · semver

Package-level exposure

OSV and GitHub Advisory data: ecosystem, package and range. SBOM matching uses this table.

EcosystemPackageAffected rangeFix
Debian:12linux-6.12before 6.12.111-1~deb12u16.12.111-1~deb12u1
Debian:13linuxbefore 6.12.111-16.12.111-1
Debian:14linuxbefore 7.2.6-17.2.6-1

Same product

linux: all records

Other highest-scoring records for the same primary product.

  • CVE-2026-74705udp: fix potential use-after-free in tunnel segmentation
    40Plan
  • CVE-2026-74612veth: fix skb length accounting after XDP frag adjustment
    40Plan
  • CVE-2026-74475vxlan: use neigh_ha_snapshot() in route_shortcircuit()
    40Plan

Published before and after this one in the same product

  • ← EarlierCVE-2026-80858Sep 4, 2026 · fuse: publish io-uring queues with release semantics
    0Monitor
  • ← EarlierCVE-2026-80859Sep 4, 2026 · fuse: fix missing barrier when checking io-uring readiness
    0Monitor
  • Later →CVE-2026-80861Sep 4, 2026 · usb: xhci: bail out of setup if the controller is inaccessible
    0Monitor

Remediation

Which version to upgrade to

Fix versions compiled from the vendor, package registries and Microsoft. Verify the vendor's note before upgrading.

Product / packageFixed versionSource
Linux Linux0f930904452945f409eeeb0c9afa08bf27185cb1Vendor (CNA)
Linux Linux26fbe4bc3ef3ab0200407681cbef182af5d151deVendor (CNA)
Linux Linux6.12.111Vendor (CNA)
Linux Linux6.18.51Vendor (CNA)
Linux Linux67ddf061790e833d7e34f9dc901866c9fb25d72dVendor (CNA)
Linux Linux7.2Vendor (CNA)
Linux Linuxed9c881f3b498383f73c42712b359419da42a7b0Vendor (CNA)
debian:linux6.12.111-1 · Debian:13Package registry (OSV)
debian:linux-6.126.12.111-1~deb12u1 · Debian:12Package registry (OSV)

Exploit status

No known public exploit

No public exploit has been observed yet. That doesn't mean you're safe, only that the bar is a little higher.

Research context

For pentesters and researchers: attack profile, score disagreement, timeline, patch commits, credits, variant and chain candidates, bug bounty scope. All derived from existing data; no exploit code.

Timeline

From publication to today: proof of concept, Metasploit module, CISA KEV and fix record. Dates are as reported by the sources.

No dated events beyond publication.

EPSS, last 120 days

FIRST EPSS daily score; only changes of 0.01 or more are recorded (step chart).

Patch and commit links

Commit, PR and diff links among the references. A starting point for patch-diffing and variant hunting; fixes, not exploits.

No commit or PR link among the references.

Credits

All researchers

Finders, reporters and analysts named in the CNA record. Click a name for that researcher’s other records.

No credits in the CNA record.

Variant candidates

Same product, same weakness class, within 18 months. If the patch missed the root cause, the sibling bug is here.

No nightly-computed relations.

Chain candidates

An authentication bypass and a privilege-requiring bug in the same product, published close together: combined they may become an unauthenticated path.

—

Bug bounty scope

No known public program.

Source: bounty-targets-data (public HackerOne, Bugcrowd, Intigriti, YesWeHack listings).

Technical details

No CVSS vector for this record, so attack conditions can't be derived.

Weakness class (CWE)

—

Attack context

MITRE CAPEC attack patterns and ATT&CK techniques for this weakness class (CWE). A starting point for detection rules and threat hunting.

MITRE has no CAPEC/ATT&CK mapping for this CWE.

Change log

  1. Fix✗ → ✓

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References

Show all references (3 more)

Vendor advisories and official records. Exploit/PoC links are deliberately left out.

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