Vulnerability-Lookup

GHSA-JJRF-JFRM-P64X

Vulnerability from github – Published: 2026-02-13 15:30 – Updated: 2026-06-02 15:31

Details

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

nvmet-tcp: add bounds checks in nvmet_tcp_build_pdu_iovec

nvmet_tcp_build_pdu_iovec() could walk past cmd->req.sg when a PDU length or offset exceeds sg_cnt and then use bogus sg->length/offset values, leading to _copy_to_iter() GPF/KASAN. Guard sg_idx, remaining entries, and sg->length/offset before building the bvec.

Severity

5.5 (Medium)


                  
                    CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H

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{
  "affected": [],
  "aliases": [
    "CVE-2026-23112"
  ],
  "database_specific": {
    "cwe_ids": [
      "CWE-787"
    ],
    "github_reviewed": false,
    "github_reviewed_at": null,
    "nvd_published_at": "2026-02-13T14:16:10Z",
    "severity": "MODERATE"
  },
  "details": "In the Linux kernel, the following vulnerability has been resolved:\n\nnvmet-tcp: add bounds checks in nvmet_tcp_build_pdu_iovec\n\nnvmet_tcp_build_pdu_iovec() could walk past cmd-\u003ereq.sg when a PDU\nlength or offset exceeds sg_cnt and then use bogus sg-\u003elength/offset\nvalues, leading to _copy_to_iter() GPF/KASAN. Guard sg_idx, remaining\nentries, and sg-\u003elength/offset before building the bvec.",
  "id": "GHSA-jjrf-jfrm-p64x",
  "modified": "2026-06-02T15:31:53Z",
  "published": "2026-02-13T15:30:26Z",
  "references": [
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2026-23112"
    },
    {
      "type": "WEB",
      "url": "https://cert-portal.siemens.com/productcert/html/ssa-253495.html"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/043b4307a99f902697349128fde93b2ddde4686c"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/0b9981751be14b59b4473383c731c833738aebdb"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/1385be357e8acd09b36e026567f3a9d5c61139de"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/19672ae68d52ff75347ebe2420dde1b07adca09f"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/42afe8ed8ad2de9c19457156244ef3e1eca94b5d"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/52a0a98549344ca20ad81a4176d68d28e3c05a5c"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/ab200d71553bdcf4de554a5985b05b2dd606bc57"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/dca1a6ba0da9f472ef040525fab10fd9956db59f"
    }
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  "schema_version": "1.4.0",
  "severity": [
    {
      "score": "CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H",
      "type": "CVSS_V3"
    }
  ]
}

CVE-2026-23112 (GCVE-0-2026-23112)

Vulnerability from cvelistv5 – Published: 2026-02-13 13:29 – Updated: 2026-08-05 12:20

Title

nvmet-tcp: add bounds checks in nvmet_tcp_build_pdu_iovec

Summary

In the Linux kernel, the following vulnerability has been resolved: nvmet-tcp: add bounds checks in nvmet_tcp_build_pdu_iovec nvmet_tcp_build_pdu_iovec() could walk past cmd->req.sg when a PDU length or offset exceeds sg_cnt and then use bogus sg->length/offset values, leading to _copy_to_iter() GPF/KASAN. Guard sg_idx, remaining entries, and sg->length/offset before building the bvec.

Severity

9.8 (Critical)


                        
                          CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

Assigner

Linux mitre root

References

8 references

URL	Tags
https://git.kernel.org/stable/c/0b9981751be14b59b…
https://git.kernel.org/stable/c/42afe8ed8ad2de9c1…
https://git.kernel.org/stable/c/1385be357e8acd09b…
https://git.kernel.org/stable/c/dca1a6ba0da9f472e…
https://git.kernel.org/stable/c/19672ae68d52ff753…
https://git.kernel.org/stable/c/ab200d71553bdcf4d…
https://git.kernel.org/stable/c/52a0a98549344ca20…
https://cert-portal.siemens.com/productcert/html/…

Impacted products

3 products

Vendor	Product	Version
Linux	Linux	Affected: 872d26a391da92ed8f0c0f5cb5fef428067b7f30 , < 0b9981751be14b59b4473383c731c833738aebdb (git) Affected: 872d26a391da92ed8f0c0f5cb5fef428067b7f30 , < 42afe8ed8ad2de9c19457156244ef3e1eca94b5d (git) Affected: 872d26a391da92ed8f0c0f5cb5fef428067b7f30 , < 1385be357e8acd09b36e026567f3a9d5c61139de (git) Affected: 872d26a391da92ed8f0c0f5cb5fef428067b7f30 , < dca1a6ba0da9f472ef040525fab10fd9956db59f (git) Affected: 872d26a391da92ed8f0c0f5cb5fef428067b7f30 , < 19672ae68d52ff75347ebe2420dde1b07adca09f (git) Affected: 872d26a391da92ed8f0c0f5cb5fef428067b7f30 , < ab200d71553bdcf4de554a5985b05b2dd606bc57 (git) Affected: 872d26a391da92ed8f0c0f5cb5fef428067b7f30 , < 52a0a98549344ca20ad81a4176d68d28e3c05a5c (git)
Linux	Linux	Affected: 5.0 Unaffected: 0 , < 5.0 (semver) Unaffected: 5.10.253 , ≤ 5.10.* (semver) Unaffected: 5.15.200 , ≤ 5.15.* (semver) Unaffected: 6.1.163 , ≤ 6.1.* (semver) Unaffected: 6.6.124 , ≤ 6.6.* (semver) Unaffected: 6.12.70 , ≤ 6.12.* (semver) Unaffected: 6.18.10 , ≤ 6.18.* (semver) Unaffected: 6.19 , ≤ * (original_commit_for_fix)
Siemens	RUGGEDCOM RST2428P	Affected: 0 , < V4.0 (custom)

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{
  "containers": {
    "adp": [
      {
        "affected": [
          {
            "defaultStatus": "unknown",
            "product": "RUGGEDCOM RST2428P",
            "vendor": "Siemens",
            "versions": [
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                "version": "0",
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          "dateUpdated": "2026-06-02T13:00:59.106Z",
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        },
        "references": [
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            "url": "https://cert-portal.siemens.com/productcert/html/ssa-253495.html"
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    "cveId": "CVE-2026-23112",
    "datePublished": "2026-02-13T13:29:56.724Z",
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}

Sightings

Author	Source	Type	Date	Other

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.

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.
Browse all ATT&CK techniques and the vulnerabilities related to each.

Related by attack behaviour

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