RDMA/siw: Fix potential NULL pointer dereference in header processing_CVE-2026-23242

{
    "lastseen": "",
    "description": "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->rx_fpdu can be NULL. The error path in siw_tcp_rx_data()\ndereferences qp->rx_fpdu->more_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",
    "published": "2026-03-18T10:05:05.108Z",
    "modified": "2026-04-02T14:43:55.534Z",
    "type": "cve",
    "title": "RDMA/siw: Fix potential NULL pointer dereference in header processing",
    "source": "Linux",
    "references": "https://git.kernel.org/stable/c/ab61841633d10e56a58c1493a262f0d02dba2f5e\nhttps://git.kernel.org/stable/c/8564dcc12fbb372d984ab45768cae9335777b274\nhttps://git.kernel.org/stable/c/ab957056192d6bd068b3759cb2077d859cca01f0\nhttps://git.kernel.org/stable/c/ffba40b67663567481fa8a1ed5d2da36897c175d\nhttps://git.kernel.org/stable/c/87b7a036d2c73d5bb3ae2d47dee23de465db3355\nhttps://git.kernel.org/stable/c/714c99e1dc8f85f446e05be02ba83972e981a817\nhttps://git.kernel.org/stable/c/ce025f7f5d070596194315eb2e4e89d568b8a755\nhttps://git.kernel.org/stable/c/14ab3da122bd18920ad57428f6cf4fade8385142",
    "id": "CVE-2026-23242",
    "bulletinFamily": "",
    "cwe": null,
    "cvelist": null,
    "sourceData": "Linux Linux 8b6a361b8c482f22ac99c3273285ff16b23fba91\nLinux Linux 8b6a361b8c482f22ac99c3273285ff16b23fba91\nLinux Linux 8b6a361b8c482f22ac99c3273285ff16b23fba91\nLinux Linux 8b6a361b8c482f22ac99c3273285ff16b23fba91\nLinux Linux 8b6a361b8c482f22ac99c3273285ff16b23fba91\nLinux Linux 8b6a361b8c482f22ac99c3273285ff16b23fba91\nLinux Linux 8b6a361b8c482f22ac99c3273285ff16b23fba91\nLinux Linux 8b6a361b8c482f22ac99c3273285ff16b23fba91\nLinux Linux 5.3",
    "sourceHref": "",
    "cvss": {
        "score": 7.5,
        "severity": "HIGH",
        "vector": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H",
        "version": "3.1"
    },
    "cvss2": [],
    "cvss3": {
        "version": "",
        "vectorString": "",
        "baseScore": 0,
        "baseSeverity": "",
        "attackVector": "",
        "attackComplexity": "",
        "privilegesRequired": "",
        "userInteraction": "",
        "scope": "",
        "confidentialityImpact": "",
        "integrityImpact": "",
        "availabilityImpact": "",
        "cvssV3": {
            "version": "",
            "vectorString": "",
            "baseScore": 0,
            "baseSeverity": "",
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            "privilegesRequired": "",
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            "confidentialityImpact": "",
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            "availabilityImpact": ""
        }
    },
    "href": "",
    "category_name": "CVE",
    "post_link": "",
    "product": "Linux",
    "version": "8b6a361b8c482f22ac99c3273285ff16b23fba91",
    "vendor": "Linux",
    "ai_description": "",
    "ai_severity": "",
    "ai_vendor": "",
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    "ai_score": 0
}