Vulnerability-Lookup

GHSA-JJRF-JFRM-P64X

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

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.

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{
  "affected": [],
  "aliases": [
    "CVE-2026-23112"
  ],
  "database_specific": {
    "cwe_ids": [],
    "github_reviewed": false,
    "github_reviewed_at": null,
    "nvd_published_at": "2026-02-13T14:16:10Z",
    "severity": null
  },
  "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": "2026-02-13T15:30:26Z",
  "published": "2026-02-13T15:30:26Z",
  "references": [
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2026-23112"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/043b4307a99f902697349128fde93b2ddde4686c"
    },
    {
      "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"
    }
  ],
  "schema_version": "1.4.0",
  "severity": []
}

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

Vulnerability from cvelistv5 – Published: 2026-02-13 13:29 – Updated: 2026-02-13 13:29

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 ?

No CVSS data available.

Assigner

Linux

References

URL

Tags

	https://git.kernel.org/stable/c/043b4307a99f90269…
	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…

Impacted products

Vendor

Product

Version

Linux

Affected: 872d26a391da92ed8f0c0f5cb5fef428067b7f30 , < 043b4307a99f902697349128fde93b2ddde4686c (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

Affected: 5.0
Unaffected: 0 , < 5.0 (semver)
Unaffected: 5.10.250 , ≤ 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)

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JSON

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{
  "containers": {
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      "affected": [
        {
          "defaultStatus": "unaffected",
          "product": "Linux",
          "programFiles": [
            "drivers/nvme/target/tcp.c"
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              "status": "affected",
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              "status": "unaffected",
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              "versionType": "semver"
            },
            {
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              "status": "unaffected",
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              "versionType": "semver"
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              "status": "unaffected",
              "version": "6.1.163",
              "versionType": "semver"
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            {
              "lessThanOrEqual": "6.6.*",
              "status": "unaffected",
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              "versionType": "semver"
            },
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            },
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              "lessThanOrEqual": "6.18.*",
              "status": "unaffected",
              "version": "6.18.10",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "*",
              "status": "unaffected",
              "version": "6.19",
              "versionType": "original_commit_for_fix"
            }
          ]
        }
      ],
      "cpeApplicability": [
        {
          "nodes": [
            {
              "cpeMatch": [
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                  "versionEndExcluding": "5.10.250",
                  "versionStartIncluding": "5.0",
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                },
                {
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                },
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          "value": "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."
        }
      ],
      "providerMetadata": {
        "dateUpdated": "2026-02-13T13:29:56.724Z",
        "orgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
        "shortName": "Linux"
      },
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    "datePublished": "2026-02-13T13:29:56.724Z",
    "dateReserved": "2026-01-13T15:37:45.968Z",
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    "state": "PUBLISHED"
  },
  "dataType": "CVE_RECORD",
  "dataVersion": "5.2"
}

Sightings

Author	Source	Type	Date

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.

Action not permitted

GHSA-JJRF-JFRM-P64X

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

Tags

Sightings

Nomenclature