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CVE Vulnerability Details :
CVE-2026-64261
PUBLISHED
More InfoOfficial Page
Assigner-Linux
Assigner Org ID-416baaa9-dc9f-4396-8d5f-8c081fb06d67
View Known Exploited Vulnerability (KEV) details
Published At-25 Jul, 2026 | 08:49
Updated At-27 Jul, 2026 | 04:59
Rejected At-
▼CVE Numbering Authority (CNA)
fuse-uring: Avoid use-after-free in fuse_uring_async_stop_queues

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 Products
Vendor
Linux Kernel Organization, IncLinux
Product
Linux
Repo
https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git
Program Files
  • fs/fuse/dev_uring.c
Default Status
unaffected
Versions
Affected
  • From 4a9bfb9b6850fec0685447aed280533cf980de70 before 23a356e0bd96c8d5fb3ddff069f692bf10cab5c1 (git)
  • From 4a9bfb9b6850fec0685447aed280533cf980de70 before 95d7f50aff2a5f71557263ff25b97b2951f32bf8 (git)
  • From 4a9bfb9b6850fec0685447aed280533cf980de70 before d351da75066955144515cb2f9aa959f24a04287a (git)
Vendor
Linux Kernel Organization, IncLinux
Product
Linux
Repo
https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git
Program Files
  • fs/fuse/dev_uring.c
Default Status
affected
Versions
Affected
  • 6.14
Unaffected
  • From 0 before 6.14 (semver)
  • From 6.18.39 through 6.18.* (semver)
  • From 7.1.4 through 7.1.* (semver)
  • From 7.2-rc1 through * (original_commit_for_fix)
Metrics
VersionBase scoreBase severityVector
3.17.8HIGH
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
Version: 3.1
Base score: 7.8
Base severity: HIGH
Vector:
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
Metrics Other Info
Impacts
CAPEC IDDescription
Solutions

Configurations

Workarounds

Exploits

Credits

Timeline
EventDate
Replaced By

Rejected Reason

References
HyperlinkResource
https://git.kernel.org/stable/c/23a356e0bd96c8d5fb3ddff069f692bf10cab5c1
N/A
https://git.kernel.org/stable/c/95d7f50aff2a5f71557263ff25b97b2951f32bf8
N/A
https://git.kernel.org/stable/c/d351da75066955144515cb2f9aa959f24a04287a
N/A
Hyperlink: https://git.kernel.org/stable/c/23a356e0bd96c8d5fb3ddff069f692bf10cab5c1
Resource: N/A
Hyperlink: https://git.kernel.org/stable/c/95d7f50aff2a5f71557263ff25b97b2951f32bf8
Resource: N/A
Hyperlink: https://git.kernel.org/stable/c/d351da75066955144515cb2f9aa959f24a04287a
Resource: N/A
Details not found