CVE-2025-68218 json
nvme-multipath: fix lockdep WARN due to partition scan work
published 2025-12-16 10 mo ago modified 2026-10-15 24 d ago also EUVD-2025-203678
- cvss
- 7.5
- version 3.1, CNA
- cisa kev
- Not listed
- not in CISA's catalog
- epss
- 0.5%
- EPSS 0.5% chance of exploitation in 30 days, percentile 44%
- public exploits
- 0
- none known
Summary
In the Linux kernel, the following vulnerability has been resolved:
nvme-multipath: fix lockdep WARN due to partition scan work
Blktests test cases nvme/014, 057 and 058 fail occasionally due to a lockdep WARN. As reported in the Closes tag URL, the WARN indicates that a deadlock can happen due to the dependency among disk->open_mutex, kblockd workqueue completion and partition_scan_work completion.
To avoid the lockdep WARN and the potential deadlock, cut the dependency by running the partition_scan_work not by kblockd workqueue but by nvme_wq.
Patch / fix
- Linux Linux 6.1.159, 6.6.118, 6.12, 6.12.60, 6.17.10, 6.18
- linux Debian 12 6.1.159-1
- linux Debian 13 6.12.63-1
- linux Debian 14 6.17.10-1
debian advisories DEBIAN-CVE-2025-68218
- linux Ubuntu 24.04 LTS 6.8.0-106.106
- linux Ubuntu 25.10 6.17.0-19.19
- linux-aws Ubuntu 24.04 LTS 6.8.0-1050.53
- linux-aws Ubuntu 25.10 6.17.0-1009.9
- linux-gcp Ubuntu 24.04 LTS 6.8.0-1052.55
- linux-gcp Ubuntu 25.10 6.17.0-1009.9
- linux-gke Ubuntu 24.04 LTS 6.8.0-1048.53
- linux-ibm Ubuntu 24.04 LTS 6.8.0-1049.49
ubuntu advisories UBUNTU-CVE-2025-68218
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
- kernel-rt Linux Micro 6.1, Linux Micro 6.0 6.4.0-40.1
- kernel-source-rt Linux Micro 6.1, Linux Micro 6.0 6.4.0-40.1
- kernel-rt Linux Micro 6.2 6.12.0-160000.26.1
- kernel-64kb SLES 16.0, Linux Micro 6.2, SLES for SAP applications 16.0 6.12.0-160000.26.1
- kernel-source SLES 16.0, Linux Micro 6.2, SLES for SAP applications 16.0 6.12.0-160000.26.1
- kernel-default SLES 16.0, SLE High Availability Extension 16.0, Linux Micro 6.2 +1 more 6.12.0-160000.26.1
- kernel-default-base SLES 16.0, Linux Micro 6.2, SLES for SAP applications 16.0 6.12.0-160000.26.1.160000.2.7
- kernel-syms SLES 16.0, Linux Micro Extras 6.2, SLES for SAP applications 16.0 6.12.0-160000.26.1
suse advisories SUSE-SU-2026:20845-1SUSE-SU-2026:20876-1SUSE-SU-2026:20555-1SUSE-SU-2026:20599-1SUSE-SU-2026:20615-1SUSE-SU-2026:20570-1
- kernel-rt openSUSE Leap 16.0 6.12.0-160000.26.1
- dtb-aarch64 openSUSE Leap 16.0 6.12.0-160000.26.1
- kernel-64kb openSUSE Leap 16.0 6.12.0-160000.26.1
- kernel-syms openSUSE Leap 16.0 6.12.0-160000.26.1
- kernel-azure openSUSE Leap 16.0 6.12.0-160000.26.1
- kernel-obs-qa openSUSE Leap 16.0 6.12.0-160000.26.1
- kernel-source openSUSE Leap 16.0 6.12.0-160000.26.1
- kernel-default openSUSE Leap 16.0 6.12.0-160000.26.1
opensuse advisories openSUSE-SU-2026:20287-1
- git.kernel.org/stable/c/89456dab7ba5ab63d60945440926673a3205e829 commit
- git.kernel.org/stable/c/e2a897ad5f538d314955c747a0a2edb184fcdecd commit
- git.kernel.org/stable/c/ef4ab2a8abe554379e10303ae86f7c501336ba0d commit
- git.kernel.org/stable/c/b03eb63288a8ffe3adfb34e68309c8e2edb06d0b commit
- git.kernel.org/stable/c/6d87cd5335784351280f82c47cc8a657271929c3 commit
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-2025-68218 updated cvss 5.5
kernel: Linux kernel: Denial of Service in nvme-multipath due to deadlock
-
Red Hat Enterprise Linux 9 rv, perf, rtla, kernel, bpftool, libperf, +83 more Red Hat Enterprise Linux 10 kernelaffected: no fix available “Fix deferred”
-
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 morenot 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
CISA SSVC
- Exploitation
- none
- Automatable
- yes
- Technical impact
- partial
- Assessed
- 24 d ago
Exploit prediction
0.53% chance of exploitation in the next 30 days, higher than 44% of all scored CVEs (FIRST EPSS, 2026-11-08).
CVSS scores
| assigned by | version | score | vector |
|---|---|---|---|
| CNA | 3.1 | 7.5 | CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H |
Affected products
- Linux Linux
Classification
- Technology feeds
References
- git.kernel.org /stable/c/89456dab7ba5ab63d60945440926673a3205e829
- git.kernel.org /stable/c/e2a897ad5f538d314955c747a0a2edb184fcdecd
- git.kernel.org /stable/c/ef4ab2a8abe554379e10303ae86f7c501336ba0d
- git.kernel.org /stable/c/b03eb63288a8ffe3adfb34e68309c8e2edb06d0b
- git.kernel.org /stable/c/6d87cd5335784351280f82c47cc8a657271929c3
Sources
- CVE List CVE-2025-68218
- NVD CVE-2025-68218
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