FKIE_CVE-2026-23242

Vulnerability from fkie_nvd - Published: 2026-03-18 11:16 - Updated: 2026-04-02 15:16
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/14ab3da122bd18920ad57428f6cf4fade8385142
416baaa9-dc9f-4396-8d5f-8c081fb06d67https://git.kernel.org/stable/c/714c99e1dc8f85f446e05be02ba83972e981a817
416baaa9-dc9f-4396-8d5f-8c081fb06d67https://git.kernel.org/stable/c/8564dcc12fbb372d984ab45768cae9335777b274
416baaa9-dc9f-4396-8d5f-8c081fb06d67https://git.kernel.org/stable/c/87b7a036d2c73d5bb3ae2d47dee23de465db3355
416baaa9-dc9f-4396-8d5f-8c081fb06d67https://git.kernel.org/stable/c/ab61841633d10e56a58c1493a262f0d02dba2f5e
416baaa9-dc9f-4396-8d5f-8c081fb06d67https://git.kernel.org/stable/c/ab957056192d6bd068b3759cb2077d859cca01f0
416baaa9-dc9f-4396-8d5f-8c081fb06d67https://git.kernel.org/stable/c/ce025f7f5d070596194315eb2e4e89d568b8a755
416baaa9-dc9f-4396-8d5f-8c081fb06d67https://git.kernel.org/stable/c/ffba40b67663567481fa8a1ed5d2da36897c175d
Impacted products
Vendor Product Version
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{
  "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": "2026-04-02T15:16:26.167",
  "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",
      "url": "https://git.kernel.org/stable/c/14ab3da122bd18920ad57428f6cf4fade8385142"
    },
    {
      "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
      "url": "https://git.kernel.org/stable/c/714c99e1dc8f85f446e05be02ba83972e981a817"
    },
    {
      "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
      "url": "https://git.kernel.org/stable/c/8564dcc12fbb372d984ab45768cae9335777b274"
    },
    {
      "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
      "url": "https://git.kernel.org/stable/c/87b7a036d2c73d5bb3ae2d47dee23de465db3355"
    },
    {
      "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
      "url": "https://git.kernel.org/stable/c/ab61841633d10e56a58c1493a262f0d02dba2f5e"
    },
    {
      "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
      "url": "https://git.kernel.org/stable/c/ab957056192d6bd068b3759cb2077d859cca01f0"
    },
    {
      "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
      "url": "https://git.kernel.org/stable/c/ce025f7f5d070596194315eb2e4e89d568b8a755"
    },
    {
      "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
      "url": "https://git.kernel.org/stable/c/ffba40b67663567481fa8a1ed5d2da36897c175d"
    }
  ],
  "sourceIdentifier": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
  "vulnStatus": "Awaiting Analysis"
}


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