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EUVD-2026-364578

European Vulnerability Database identifier assigned by ENISA

Reserved

2026-10-02 08:33

Assigner

ENISA

Alias of

a CVE record, shown under related vulnerabilities. This identifier carries no description, severity or references of its own: they belong to that CVE.

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{
  "assigner": "ENISA",
  "date_reserved": "2026-10-02T08:33:11.082848+00:00",
  "id": "EUVD-2026-364578"
}

CVE-2025-40196 (GCVE-0-2025-40196)

Vulnerability from cvelistv5 – Published: 2025-11-12 21:56 – Updated: 2026-09-08 08:42

Title

fs: quota: create dedicated workqueue for quota_release_work

Summary

In the Linux kernel, the following vulnerability has been resolved: fs: quota: create dedicated workqueue for quota_release_work There is a kernel panic due to WARN_ONCE when panic_on_warn is set. This issue occurs when writeback is triggered due to sync call for an opened file(ie, writeback reason is WB_REASON_SYNC). When f2fs balance is needed at sync path, flush for quota_release_work is triggered. By default quota_release_work is queued to "events_unbound" queue which does not have WQ_MEM_RECLAIM flag. During f2fs balance "writeback" workqueue tries to flush quota_release_work causing kernel panic due to MEM_RECLAIM flag mismatch errors. This patch creates dedicated workqueue with WQ_MEM_RECLAIM flag for work quota_release_work. ------------[ cut here ]------------ WARNING: CPU: 4 PID: 14867 at kernel/workqueue.c:3721 check_flush_dependency+0x13c/0x148 Call trace: check_flush_dependency+0x13c/0x148 __flush_work+0xd0/0x398 flush_delayed_work+0x44/0x5c dquot_writeback_dquots+0x54/0x318 f2fs_do_quota_sync+0xb8/0x1a8 f2fs_write_checkpoint+0x3cc/0x99c f2fs_gc+0x190/0x750 f2fs_balance_fs+0x110/0x168 f2fs_write_single_data_page+0x474/0x7dc f2fs_write_data_pages+0x7d0/0xd0c do_writepages+0xe0/0x2f4 __writeback_single_inode+0x44/0x4ac writeback_sb_inodes+0x30c/0x538 wb_writeback+0xf4/0x440 wb_workfn+0x128/0x5d4 process_scheduled_works+0x1c4/0x45c worker_thread+0x32c/0x3e8 kthread+0x11c/0x1b0 ret_from_fork+0x10/0x20 Kernel panic - not syncing: kernel: panic_on_warn set ...

Severity

No CVSS data available.

Assigner

Linux mitre root Scorecard

References

6 references

URL	Tags
https://git.kernel.org/stable/c/8df2eedd371a1c24e…
https://git.kernel.org/stable/c/f846eacde280ecc3d…
https://git.kernel.org/stable/c/f12039df1515d5daf…
https://git.kernel.org/stable/c/8a09a62f0c8c6123c…
https://git.kernel.org/stable/c/72b7ceca857f38a8c…
https://cert-portal.siemens.com/productcert/html/…

Impacted products

5 products

Vendor	Product	Version
Linux	Linux	Affected: 3e6ff207cd5bd924ad94cd1a7c633bcdac0ba1cb , < 8df2eedd371a1c24ecc4283581299d7737dfcd06 (git) Affected: bcacb52a985f1b6d280f698a470b873dfe52728a , < f846eacde280ecc3daedfe001580e3033565179e (git) Affected: 8ea87e34792258825d290f4dc5216276e91cb224 , < f12039df1515d5daf7d92e586ece5cefeb39561b (git) Affected: ac6f420291b3fee1113f21d612fa88b628afab5b , < 8a09a62f0c8c6123c2f1864ed6d5f9eb144afaf0 (git) Affected: ac6f420291b3fee1113f21d612fa88b628afab5b , < 72b7ceca857f38a8ca7c5629feffc63769638974 (git) Affected: a5abba5e0e586e258ded3e798fe5f69c66fec198 (git) Affected: 6f3821acd7c3143145999248087de5fb4b48cf26 (git) Affected: ab6cfcf8ed2c7496f55d020b65b1d8cd55d9a2cb (git) Affected: 6.1.120 , < 6.1.178 (semver) Affected: 6.6.64 , < 6.6.114 (semver) Affected: 6.12.4 , < 6.12.54 (semver) Affected: 5.4.287 , < 5.5 (semver) Affected: 5.10.231 , < 5.11 (semver) Affected: 5.15.174 , < 5.16 (semver)
Linux	Linux	Affected: 6.13 Unaffected: 0 , < 6.13 (semver) Unaffected: 6.1.178 , ≤ 6.1.* (semver) Unaffected: 6.6.114 , ≤ 6.6.* (semver) Unaffected: 6.12.54 , ≤ 6.12.* (semver) Unaffected: 6.17.4 , ≤ 6.17.* (semver) Unaffected: 6.18 , ≤ * (original_commit_for_fix)
Siemens	SIMATIC S7-1500 CPU 1518-4 PN/DP MFP	Affected: V3.1.6 , < * (custom)
Siemens	SIMATIC S7-1500 CPU 1518F-4 PN/DP MFP	Affected: V3.1.6 , < * (custom)
Siemens	SIPLUS S7-1500 CPU 1518-4 PN/DP MFP	Affected: V3.1.6 , < * (custom)

Show details on NVD website

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{
  "containers": {
    "adp": [
      {
        "affected": [
          {
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            "product": "SIMATIC S7-1500 CPU 1518-4 PN/DP MFP",
            "vendor": "Siemens",
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            "product": "SIPLUS S7-1500 CPU 1518-4 PN/DP MFP",
            "vendor": "Siemens",
            "versions": [
              {
                "lessThan": "*",
                "status": "affected",
                "version": "V3.1.6",
                "versionType": "custom"
              }
            ]
          }
        ],
        "providerMetadata": {
          "dateUpdated": "2026-09-08T08:42:53.997Z",
          "orgId": "0b142b55-0307-4c5a-b3c9-f314f3fb7c5e",
          "shortName": "siemens-SADP"
        },
        "references": [
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            "url": "https://cert-portal.siemens.com/productcert/html/ssa-019113.html"
          }
        ],
        "x_adpType": "supplier"
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    ],
    "cna": {
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          "product": "Linux",
          "programFiles": [
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          ],
          "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
          "vendor": "Linux",
          "versions": [
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              "status": "affected",
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              "version": "8ea87e34792258825d290f4dc5216276e91cb224",
              "versionType": "git"
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              "status": "affected",
              "version": "6.6.64",
              "versionType": "semver"
            },
            {
              "lessThan": "6.12.54",
              "status": "affected",
              "version": "6.12.4",
              "versionType": "semver"
            },
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              "lessThan": "5.5",
              "status": "affected",
              "version": "5.4.287",
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            },
            {
              "lessThan": "5.16",
              "status": "affected",
              "version": "5.15.174",
              "versionType": "semver"
            }
          ]
        },
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          "product": "Linux",
          "programFiles": [
            "fs/quota/dquot.c"
          ],
          "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
          "vendor": "Linux",
          "versions": [
            {
              "status": "affected",
              "version": "6.13"
            },
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              "lessThan": "6.13",
              "status": "unaffected",
              "version": "0",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "6.1.*",
              "status": "unaffected",
              "version": "6.1.178",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "6.6.*",
              "status": "unaffected",
              "version": "6.6.114",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "6.12.*",
              "status": "unaffected",
              "version": "6.12.54",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "6.17.*",
              "status": "unaffected",
              "version": "6.17.4",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "*",
              "status": "unaffected",
              "version": "6.18",
              "versionType": "original_commit_for_fix"
            }
          ]
        }
      ],
      "cpeApplicability": [
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                  "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                  "versionEndExcluding": "6.1.178",
                  "versionStartIncluding": "6.1.120",
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                },
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                  "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
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    "assignerShortName": "Linux",
    "cveId": "CVE-2025-40196",
    "datePublished": "2025-11-12T21:56:32.578Z",
    "dateReserved": "2025-04-16T07:20:57.178Z",
    "dateUpdated": "2026-09-08T08:42:53.997Z",
    "state": "PUBLISHED"
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  "dataType": "CVE_RECORD",
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}

Sightings

Author	Source	Type	Date	Other

Nomenclature

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Not patched: The vulnerability was not observed as successfully patched by the user who reported the sighting.

The MITRE ATT&CK techniques below are AI-generated suggestions, inferred from the description of the vulnerability by the CIRCL/vulnerability-attack-technique-classification-roberta-base model, served locally by ML-Gateway. They have not been verified by an analyst and are provided for guidance only.
The approach is described in our paper Mapping CVEs to MITRE ATT&CK Techniques: A Curated Gold-Set Classifier and the Limits of LLM-Assisted Label Expansion.
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EUVD-2026-364578

CVE-2025-40196 (GCVE-0-2025-40196)

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Nomenclature

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