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CVE-2025-68218 (GCVE-0-2025-68218)

Vulnerability from cvelistv5 – Published: 2025-12-16 13:57 – Updated: 2026-08-05 12:10
VLAI
Title
nvme-multipath: fix lockdep WARN due to partition scan work
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.
Severity
7.5 (High)
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
Assigner
References
Impacted products
Vendor Product Version CPE status
Linux Linux Affected: 60de2e03f984cfbcdc12fa552f95087c35a05a98 , < 89456dab7ba5ab63d60945440926673a3205e829 (git)
Affected: 4a57f42e5ed42cb8f1beb262c4f6d3e698939e4e , < e2a897ad5f538d314955c747a0a2edb184fcdecd (git)
Affected: 1f021341eef41e77a633186e9be5223de2ce5d48 , < ef4ab2a8abe554379e10303ae86f7c501336ba0d (git)
Affected: 1f021341eef41e77a633186e9be5223de2ce5d48 , < b03eb63288a8ffe3adfb34e68309c8e2edb06d0b (git)
Affected: 1f021341eef41e77a633186e9be5223de2ce5d48 , < 6d87cd5335784351280f82c47cc8a657271929c3 (git)
Affected: a91b7eddf45afeeb9c5ece11dddff5de0921b00f (git)
Affected: 6.1.118 , < 6.1.159 (semver)
Affected: 6.6.62 , < 6.6.118 (semver)
Affected: 6.11.9 , < 6.12 (semver)
guessed Create a notification for this product.
Linux Linux Affected: 6.12
Unaffected: 0 , < 6.12 (semver)
Unaffected: 6.1.159 , ≤ 6.1.* (semver)
Unaffected: 6.6.118 , ≤ 6.6.* (semver)
Unaffected: 6.12.60 , ≤ 6.12.* (semver)
Unaffected: 6.17.10 , ≤ 6.17.* (semver)
Unaffected: 6.18 , ≤ * (original_commit_for_fix)
guessed Create a notification for this product.
Show details on NVD website
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          "value": "In the Linux kernel, the following vulnerability has been resolved:\n\nnvme-multipath: fix lockdep WARN due to partition scan work\n\nBlktests test cases nvme/014, 057 and 058 fail occasionally due to a\nlockdep WARN. As reported in the Closes tag URL, the WARN indicates that\na deadlock can happen due to the dependency among disk-\u003eopen_mutex,\nkblockd workqueue completion and partition_scan_work completion.\n\nTo avoid the lockdep WARN and the potential deadlock, cut the dependency\nby running the partition_scan_work not by kblockd workqueue but by\nnvme_wq."
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              "value": "AV:N - A malicious NVMe/TCP, RDMA, or FC controller can remotely drive namespace discovery, rapid remapping, ANA changes, and removal through protocol responses and asynchronous events.\nAC:L - The controller controls namespace presentation and removal and can repeatedly trigger rapid lifecycle changes to overlap automated partition scanning and device closure.\nPR:N - Once the host is connected, an NVMe-oF peer needs no privileges on the vulnerable host; authentication is optional and unauthenticated NVMe/TCP deployments are supported.\nUI:N - Namespace scanning and systemd-udevd device opening and closure occur automatically in a configured persistent NVMe-oF deployment.\nS:U - The deadlock affects resources within the host kernel\u0027s existing security authority and does not cross a virtualization or isolation boundary.\nC:N - The defect creates a circular locking dependency without exposing memory or providing an information-disclosure primitive.\nI:N - No memory corruption, unauthorized write, or control-flow modification results from the workqueue deadlock.\nA:H - The circular dependency can deadlock NVMe and block-layer work and device teardown, hanging storage operations and potentially critical system services."
            }
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    "datePublished": "2025-12-16T13:57:12.733Z",
    "dateReserved": "2025-12-16T13:41:40.256Z",
    "dateUpdated": "2026-08-05T12:10:17.092Z",
    "state": "PUBLISHED"
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    "redhat_vex": {
      "aggregate_severity": "Low",
      "current_release_date": "2026-07-30T10:07:13+00:00",
      "cve": "CVE-2025-68218",
      "id": "CVE-2025-68218",
      "initial_release_date": "2025-12-16T00:00:00+00:00",
      "product_status:known_affected": "184",
      "product_status:known_not_affected": "90",
      "source": "Red Hat CSAF VEX",
      "status": "final",
      "title": "kernel: Linux kernel: Denial of Service in nvme-multipath due to deadlock",
      "url": "https://security.access.redhat.com/data/csaf/v2/vex/2025/cve-2025-68218.json",
      "version": "3"
    },
    "suse_vex": {
      "aggregate_severity": "moderate",
      "current_release_date": "2026-09-01T13:40:38Z",
      "cve": "CVE-2025-68218",
      "id": "CVE-2025-68218",
      "initial_release_date": "2025-12-17T00:25:11Z",
      "product_status:first_fixed": "2",
      "product_status:known_not_affected": "368",
      "product_status:recommended": "451",
      "source": "SUSE CSAF VEX",
      "status": "interim",
      "title": "SUSE CVE CVE-2025-68218",
      "url": "https://ftp.suse.com/pub/projects/security/csaf-vex/cve-2025-68218.json",
      "version": "34"
    }
  }
}



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Forecast uses a logistic model when the trend is rising, or an exponential decay model when the trend is falling. Fitted via linearized least squares.

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Nomenclature

  • Seen: The vulnerability was mentioned, discussed, or observed by the user.
  • Confirmed: The vulnerability has been validated from an analyst's perspective.
  • Published Proof of Concept: A public proof of concept is available for this vulnerability.
  • Exploited: The vulnerability was observed as exploited by the user who reported the sighting.
  • Patched: The vulnerability was observed as successfully patched by the user who reported the sighting.
  • Not exploited: The vulnerability was not observed as exploited by the user who reported the sighting.
  • Not confirmed: The user expressed doubt about the validity of the vulnerability.
  • Not patched: The vulnerability was not observed as successfully patched by the user who reported the sighting.


Detection rules are retrieved from Rulezet.


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