FKIE_CVE-2026-23242

Vulnerability from fkie_nvd - Published: 2026-03-18 11:16 - Updated: 2026-06-17 10:21
Severity
7.5 (High) - CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
Summary
In the Linux kernel, the following vulnerability has been resolved: RDMA/siw: Fix potential NULL pointer dereference in header processing If siw_get_hdr() returns -EINVAL before set_rx_fpdu_context(), qp->rx_fpdu can be NULL. The error path in siw_tcp_rx_data() dereferences qp->rx_fpdu->more_ddp_segs without checking, which may lead to a NULL pointer deref. Only check more_ddp_segs when rx_fpdu is present. KASAN splat: [ 101.384271] KASAN: null-ptr-deref in range [0x00000000000000c0-0x00000000000000c7] [ 101.385869] RIP: 0010:siw_tcp_rx_data+0x13ad/0x1e50
References
416baaa9-dc9f-4396-8d5f-8c081fb06d67https://git.kernel.org/stable/c/14ab3da122bd18920ad57428f6cf4fade8385142Patch
416baaa9-dc9f-4396-8d5f-8c081fb06d67https://git.kernel.org/stable/c/714c99e1dc8f85f446e05be02ba83972e981a817Patch
416baaa9-dc9f-4396-8d5f-8c081fb06d67https://git.kernel.org/stable/c/8564dcc12fbb372d984ab45768cae9335777b274Patch
416baaa9-dc9f-4396-8d5f-8c081fb06d67https://git.kernel.org/stable/c/87b7a036d2c73d5bb3ae2d47dee23de465db3355Patch
416baaa9-dc9f-4396-8d5f-8c081fb06d67https://git.kernel.org/stable/c/ab61841633d10e56a58c1493a262f0d02dba2f5ePatch
416baaa9-dc9f-4396-8d5f-8c081fb06d67https://git.kernel.org/stable/c/ab957056192d6bd068b3759cb2077d859cca01f0Patch
416baaa9-dc9f-4396-8d5f-8c081fb06d67https://git.kernel.org/stable/c/ce025f7f5d070596194315eb2e4e89d568b8a755Patch
416baaa9-dc9f-4396-8d5f-8c081fb06d67https://git.kernel.org/stable/c/ffba40b67663567481fa8a1ed5d2da36897c175dPatch
Impacted products
Vendor Product Version
linux linux_kernel *
linux linux_kernel *
linux linux_kernel *
linux linux_kernel *
linux linux_kernel *
linux linux_kernel *
linux linux_kernel *
linux linux_kernel 5.3
To clipboard 

{
  "affected": [
    {
      "affectedData": [
        {
          "defaultStatus": "unaffected",
          "product": "Linux",
          "programFiles": [
            "drivers/infiniband/sw/siw/siw_qp_rx.c"
          ],
          "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
          "vendor": "Linux",
          "versions": [
            {
              "lessThan": "ab61841633d10e56a58c1493a262f0d02dba2f5e",
              "status": "affected",
              "version": "8b6a361b8c482f22ac99c3273285ff16b23fba91",
              "versionType": "git"
            },
            {
              "lessThan": "8564dcc12fbb372d984ab45768cae9335777b274",
              "status": "affected",
              "version": "8b6a361b8c482f22ac99c3273285ff16b23fba91",
              "versionType": "git"
            },
            {
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              "status": "affected",
              "version": "8b6a361b8c482f22ac99c3273285ff16b23fba91",
              "versionType": "git"
            },
            {
              "lessThan": "ffba40b67663567481fa8a1ed5d2da36897c175d",
              "status": "affected",
              "version": "8b6a361b8c482f22ac99c3273285ff16b23fba91",
              "versionType": "git"
            },
            {
              "lessThan": "87b7a036d2c73d5bb3ae2d47dee23de465db3355",
              "status": "affected",
              "version": "8b6a361b8c482f22ac99c3273285ff16b23fba91",
              "versionType": "git"
            },
            {
              "lessThan": "714c99e1dc8f85f446e05be02ba83972e981a817",
              "status": "affected",
              "version": "8b6a361b8c482f22ac99c3273285ff16b23fba91",
              "versionType": "git"
            },
            {
              "lessThan": "ce025f7f5d070596194315eb2e4e89d568b8a755",
              "status": "affected",
              "version": "8b6a361b8c482f22ac99c3273285ff16b23fba91",
              "versionType": "git"
            },
            {
              "lessThan": "14ab3da122bd18920ad57428f6cf4fade8385142",
              "status": "affected",
              "version": "8b6a361b8c482f22ac99c3273285ff16b23fba91",
              "versionType": "git"
            }
          ]
        },
        {
          "defaultStatus": "affected",
          "product": "Linux",
          "programFiles": [
            "drivers/infiniband/sw/siw/siw_qp_rx.c"
          ],
          "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
          "vendor": "Linux",
          "versions": [
            {
              "status": "affected",
              "version": "5.3"
            },
            {
              "lessThan": "5.3",
              "status": "unaffected",
              "version": "0",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "5.10.*",
              "status": "unaffected",
              "version": "5.10.252",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "5.15.*",
              "status": "unaffected",
              "version": "5.15.202",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "6.1.*",
              "status": "unaffected",
              "version": "6.1.165",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "6.6.*",
              "status": "unaffected",
              "version": "6.6.128",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "6.12.*",
              "status": "unaffected",
              "version": "6.12.75",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "6.18.*",
              "status": "unaffected",
              "version": "6.18.14",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "6.19.*",
              "status": "unaffected",
              "version": "6.19.4",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "*",
              "status": "unaffected",
              "version": "7.0",
              "versionType": "original_commit_for_fix"
            }
          ]
        }
      ],
      "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67"
    }
  ],
  "configurations": [
    {
      "nodes": [
        {
          "cpeMatch": [
            {
              "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
              "matchCriteriaId": "76341382-8280-4624-A6BF-BBFD488EEB2F",
              "versionEndExcluding": "5.10.252",
              "versionStartIncluding": "5.3.1",
              "vulnerable": true
            },
            {
              "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
              "matchCriteriaId": "4002FC2B-1456-4666-B240-0EBF590C4671",
              "versionEndExcluding": "5.15.202",
              "versionStartIncluding": "5.11",
              "vulnerable": true
            },
            {
              "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
              "matchCriteriaId": "797C7F46-D0BE-4FB8-A502-C5EF8E6B6654",
              "versionEndExcluding": "6.1.165",
              "versionStartIncluding": "5.16",
              "vulnerable": true
            },
            {
              "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
              "matchCriteriaId": "851E9353-6C09-4CC9-877E-E09DB164A3C2",
              "versionEndExcluding": "6.6.128",
              "versionStartIncluding": "6.2",
              "vulnerable": true
            },
            {
              "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
              "matchCriteriaId": "BCE16369-98ED-41CF-8995-DFDC10B288D2",
              "versionEndExcluding": "6.12.75",
              "versionStartIncluding": "6.7",
              "vulnerable": true
            },
            {
              "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
              "matchCriteriaId": "BF463CB7-1F58-4607-B847-77ED23E4B9B7",
              "versionEndExcluding": "6.18.14",
              "versionStartIncluding": "6.13",
              "vulnerable": true
            },
            {
              "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
              "matchCriteriaId": "672A3E79-EC03-479D-8503-361DFBDC8092",
              "versionEndExcluding": "6.19.4",
              "versionStartIncluding": "6.19",
              "vulnerable": true
            },
            {
              "criteria": "cpe:2.3:o:linux:linux_kernel:5.3:-:*:*:*:*:*:*",
              "matchCriteriaId": "D036D76E-AC69-4382-B4C1-8EDA1ABB2941",
              "vulnerable": true
            }
          ],
          "negate": false,
          "operator": "OR"
        }
      ]
    }
  ],
  "cveTags": [],
  "descriptions": [
    {
      "lang": "en",
      "value": "In the Linux kernel, the following vulnerability has been resolved:\n\nRDMA/siw: Fix potential NULL pointer dereference in header processing\n\nIf siw_get_hdr() returns -EINVAL before set_rx_fpdu_context(),\nqp-\u003erx_fpdu can be NULL. The error path in siw_tcp_rx_data()\ndereferences qp-\u003erx_fpdu-\u003emore_ddp_segs without checking, which\nmay lead to a NULL pointer deref. Only check more_ddp_segs when\nrx_fpdu is present.\n\nKASAN splat:\n[  101.384271] KASAN: null-ptr-deref in range [0x00000000000000c0-0x00000000000000c7]\n[  101.385869] RIP: 0010:siw_tcp_rx_data+0x13ad/0x1e50"
    },
    {
      "lang": "es",
      "value": "En el kernel de Linux, la siguiente vulnerabilidad ha sido resuelta:\n\nRDMA/siw: Soluciona una posible desreferencia de puntero NULL en el procesamiento de encabezados\n\nSi siw_get_hdr() devuelve -EINVAL antes de set_rx_fpdu_context(), qp-\u0026gt;rx_fpdu puede ser NULL. La ruta de error en siw_tcp_rx_data() desreferencia qp-\u0026gt;rx_fpdu-\u0026gt;more_ddp_segs sin verificar, lo que puede llevar a una desreferencia de puntero NULL. Solo verificar more_ddp_segs cuando rx_fpdu est\u00e1 presente.\n\nKASAN splat:\n[ 101.384271] KASAN: desreferencia de puntero nulo en el rango [0x00000000000000c0-0x00000000000000c7]\n[ 101.385869] RIP: 0010:siw_tcp_rx_data+0x13ad/0x1e50"
    }
  ],
  "id": "CVE-2026-23242",
  "lastModified": "2026-06-17T10:21:10.280",
  "metrics": {
    "cvssMetricV31": [
      {
        "cvssData": {
          "attackComplexity": "LOW",
          "attackVector": "NETWORK",
          "availabilityImpact": "HIGH",
          "baseScore": 7.5,
          "baseSeverity": "HIGH",
          "confidentialityImpact": "NONE",
          "integrityImpact": "NONE",
          "privilegesRequired": "NONE",
          "scope": "UNCHANGED",
          "userInteraction": "NONE",
          "vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H",
          "version": "3.1"
        },
        "exploitabilityScore": 3.9,
        "impactScore": 3.6,
        "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
        "type": "Secondary"
      }
    ]
  },
  "published": "2026-03-18T11:16:15.887",
  "references": [
    {
      "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
      "tags": [
        "Patch"
      ],
      "url": "https://git.kernel.org/stable/c/14ab3da122bd18920ad57428f6cf4fade8385142"
    },
    {
      "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
      "tags": [
        "Patch"
      ],
      "url": "https://git.kernel.org/stable/c/714c99e1dc8f85f446e05be02ba83972e981a817"
    },
    {
      "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
      "tags": [
        "Patch"
      ],
      "url": "https://git.kernel.org/stable/c/8564dcc12fbb372d984ab45768cae9335777b274"
    },
    {
      "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
      "tags": [
        "Patch"
      ],
      "url": "https://git.kernel.org/stable/c/87b7a036d2c73d5bb3ae2d47dee23de465db3355"
    },
    {
      "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
      "tags": [
        "Patch"
      ],
      "url": "https://git.kernel.org/stable/c/ab61841633d10e56a58c1493a262f0d02dba2f5e"
    },
    {
      "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
      "tags": [
        "Patch"
      ],
      "url": "https://git.kernel.org/stable/c/ab957056192d6bd068b3759cb2077d859cca01f0"
    },
    {
      "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
      "tags": [
        "Patch"
      ],
      "url": "https://git.kernel.org/stable/c/ce025f7f5d070596194315eb2e4e89d568b8a755"
    },
    {
      "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
      "tags": [
        "Patch"
      ],
      "url": "https://git.kernel.org/stable/c/ffba40b67663567481fa8a1ed5d2da36897c175d"
    }
  ],
  "sourceIdentifier": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
  "vulnStatus": "Analyzed",
  "weaknesses": [
    {
      "description": [
        {
          "lang": "en",
          "value": "CWE-476"
        }
      ],
      "source": "nvd@nist.gov",
      "type": "Primary"
    }
  ]
}


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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.
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  • 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.


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