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Fencer Vulns
high 7.8

CVE-2025-68805 json

fuse: fix io-uring list corruption for terminated non-committed requests

published 2026-01-13 9 mo ago modified 2026-08-05 3 mo ago also EUVD-2026-2312

cvss
7.8
version 3.1, CNA
cisa kev
Not listed
not in CISA's catalog
epss
0.1%
EPSS 0.1% chance of exploitation in 30 days, percentile 3%
public exploits
0
none known

Summary

In the Linux kernel, the following vulnerability has been resolved:

fuse: fix io-uring list corruption for terminated non-committed requests

When a request is terminated before it has been committed, the request is not removed from the queue's list. This leaves a dangling list entry that leads to list corruption and use-after-free issues.

Remove the request from the queue's list for terminated non-committed requests.

Patch / fix

  • Linux Linux 6.18.3, 6.19
  • linux Debian 14 6.18.3-1

debian advisories DEBIAN-CVE-2025-68805

  • linux Ubuntu 25.10 6.17.0-22.22
  • linux-aws Ubuntu 25.10 6.17.0-1012.12
  • linux-gcp Ubuntu 25.10 6.17.0-1012.12
  • linux-azure Ubuntu 25.10 6.17.0-1013.13
  • linux-raspi Ubuntu 25.10 6.17.0-1013.13
  • linux-riscv Ubuntu 25.10 6.17.0-22.22.1
  • linux-oracle Ubuntu 25.10 6.17.0-1011.11
  • linux-aws-6.17 Ubuntu 24.04 LTS 6.17.0-1012.12~24.04.1

ubuntu advisories UBUNTU-CVE-2025-68805

Ubuntu security data © Canonical Ltd., from https://github.com/canonical/ubuntu-security-notices via OSV; changed: normalised to fixed package versions per release. CC BY-SA 4.0

Vendor advisories

What the vendors themselves say about their products: affected, fixed or not affected, and what to do.

red hat product security vex CVE-2025-68805 updated cvss 7.8

kernel: Linux kernel (fuse): Use-after-free vulnerability via io-uring list corruption

  • Red Hat Enterprise Linux 6 perf, kernel, python-perf, kernel-kdump, kernel-firmware, kernel-bootwrapper, +1 more Red Hat Enterprise Linux 7 perf, kernel, bpftool, kernel-rt, python-perf, kernel-kdump, +8 more Red Hat Enterprise Linux 8 perf, kernel, bpftool, kernel-rt, kernel-core, kernel-tools, +29 more Red Hat Enterprise Linux 9 rv, perf, rtla, kernel, bpftool, libperf, +83 more Red Hat Enterprise Linux 10 kernel
    not affected: vulnerable code not present

Red Hat CSAF VEX © Red Hat, Inc., from https://security.access.redhat.com/data/csaf/v2/vex/; changed: reduced to product statuses and remediations. CC BY 4.0 · csaf

Exploit prediction

0.14% chance of exploitation in the next 30 days, higher than 3% of all scored CVEs (FIRST EPSS, 2026-11-08).

CVSS scores

assigned by version score vector
CNA 3.1 7.8 CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H

Affected products

  • Linux Linux

Classification

Technology feeds

References

Sources

Fencer Vulns keeps one entry per vulnerability: the CVE id wins, then GHSA, and records that alias each other are merged, except that two CVEs always keep separate entries. The same data is available as JSON.