fuse: fix race between interrupt and resend

Answer in brief

CVE-2026-80860 records a Unknown severity vulnerability in fuse: fix race between interrupt and resend. The current sources do not mark it as known exploited. The current feed maps Linux/Linux (generic), Linux/Linux (generic). Check affected ranges and fixed versions before updating.

Analysis pending evidence review

HOL Guard separates source facts from reviewed analysis. See the methodology.

Published Sep 4, 2026Updated Sep 4, 2026Source checked Sep 4, 2026First seen by HOL Sep 4, 2026Material review Sep 4, 2026

Upstream Advisory

Key facts

Risk: Unknown severitySource severity not reported
Exploitation: Not marked as known exploited
Affected software: 2 mapped packages or products
Fix availability: Available

Why this deserves its current priority

A CVSS score is not reported in the current record. The current sources do not mark it as known exploited. Treat this as a source-backed prioritization signal, not a statement about your environment.

Analysis status

Analysis pending evidence review

Factual feed record only; HOL analysis is not approved for indexing. Read the methodology.

Affected scope and exposure questions

The current feed maps Linux/Linux (generic), Linux/Linux (generic). Check affected ranges and fixed versions before updating.

Mapped affected packages and fixed versions
Package	Affected range	Fixed version
Linux/Linuxgeneric	>=f8fce75fedf73ac72aa09163deb8f4291fdcaad2 <26fbe4bc3ef3ab0200407681cbef182af5d151de \|\| >=f8fce75fedf73ac72aa09163deb8f4291fdcaad2 <ed9c881f3b498383f73c42712b359419da42a7b0 \|\| 1d8ecd0cd696a5df0b2f72046a4ccee5d2a8ec2c \|\| 7366e6f4d2b4c7002b13fb01219e83679dad4127 \|\| 893479015cb6442fd389d3b553ab3036c9541715 \|\| >=6.12.96 <6.13 \|\| >=6.18.39 <6.19 \|\| >=7.1.4 <7.2	26fbe4bc3ef3ab0200407681cbef182af5d151de, ed9c881f3b498383f73c42712b359419da42a7b0, 6.13, 6.19, 7.2
Linux/Linuxgeneric	7.2	Not reported

Recommended response

Check inventory. Check lockfiles and deployed manifests for Linux/Linux, Linux/Linux.
Review the reported fix. Update Linux/Linux to 26fbe4bc3ef3ab0200407681cbef182af5d151de if you use the affected versions. Test the change in a non-production environment first.

Evidence timeline and material changes

Published upstream
Sep 4, 2026
Evidence: source:cvelist:source_dates:source-dates:record
Source modified
Sep 4, 2026
Evidence: source:cvelist:source_dates:source-dates:record
First seen by HOL
Sep 4, 2026

Sources and claim methodology

Upstream source description

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()

Quoted source text, attributed separately from HOL analysis.