CVE-2026-80860 Affecting linux-6.12 package, versions <6.12.111-1~deb12u1


Severity

Recommended
low

Based on default assessment until relevant scores are available.

Threat Intelligence

EPSS
0.16% (5th percentile)

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  • Snyk IDSNYK-DEBIAN12-LINUX612-20506492
  • published5 Oct 2026
  • disclosed4 Sept 2026

Introduced: 4 Sep 2026

CVE-2026-80860  (opens in a new tab)

How to fix?

Upgrade Debian:12 linux-6.12 to version 6.12.111-1~deb12u1 or higher.

NVD Description

Note: Versions mentioned in the description apply only to the upstream linux-6.12 package and not the linux-6.12 package as distributed by Debian. See How to fix? for Debian:12 relevant fixed versions and status.

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()