CVE-2026-64261

fuse-uring: Avoid use-after-free in fuse_uring_async_stop_queues

HIGH
7.8
CVSS Score
Published: July 25, 2026 at 08:49 AM UTC
Updated: August 17, 2026 at 05:17 AM UTC
1 product affected across 1 vendorLinux Kernel

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Severity
HIGH7.8
Exploit prediction
EPSS 0.2%

Description

In the Linux kernel, the following vulnerability has been resolved: fuse-uring: Avoid use-after-free in fuse_uring_async_stop_queues fuse_uring_async_stop_queues() might run when the last reference on ring->queue_refs was already dropped. In order to avoid an early destruction a reference on struct fuse_conn is now taken before starting fuse_uring_async_stop_queues() and that reference is only released when that delayed work queue terminates.

Affected

Our own answer: ranges merged, affected separated from platform-only, with confidence and review flags.

6.14 ≤ v < 6.18.396.14 ≤ v < 7.1.46.14 ≤ v < 7.26.19 ≤ v < 7.1.44a9bfb9b6850fec0685447aed280533cf980de706.14
Vendor states this is fixed in 23a356e0bd96c8d5fb3ddff069f692bf10cab5c1 (fixed)
Vendor states this is fixed in 95d7f50aff2a5f71557263ff25b97b2951f32bf8 (fixed)
Vendor states this is fixed in d351da75066955144515cb2f9aa959f24a04287a (fixed)
Vendor states this is fixed in 6.14 (unaffected)
Vendor states this is fixed in 6.18.39 (unaffected)
Vendor states this is fixed in 7.1.4 (unaffected)
Vendor states this is fixed in 7.2 (unaffected)

CVSS

7.8HIGHLinux
Vector?

Quick Info

StatusANALYZED
CWE
CWE-416

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