net: ti: icssg-prueth: Fix memory leak in XDP_DROP for non-zero-copy mode_CVE-2026-23453

{
    "lastseen": "",
    "description": "In the Linux kernel, the following vulnerability has been resolved:\n\nnet: ti: icssg-prueth: Fix memory leak in XDP_DROP for non-zero-copy mode\n\nPage recycling was removed from the XDP_DROP path in emac_run_xdp() to\navoid conflicts with AF_XDP zero-copy mode, which uses xsk_buff_free()\ninstead.\n\nHowever, this causes a memory leak when running XDP programs that drop\npackets in non-zero-copy mode (standard page pool mode). The pages are\nnever returned to the page pool, leading to OOM conditions.\n\nFix this by handling cleanup in the caller, emac_rx_packet().\nWhen emac_run_xdp() returns ICSSG_XDP_CONSUMED for XDP_DROP, the\ncaller now recycles the page back to the page pool. The zero-copy\npath, emac_rx_packet_zc() already handles cleanup correctly with\nxsk_buff_free().",
    "published": "2026-04-03T15:15:35.549Z",
    "modified": "2026-04-27T14:02:32.584Z",
    "type": "cve",
    "title": "net: ti: icssg-prueth: Fix memory leak in XDP_DROP for non-zero-copy mode",
    "source": "Linux",
    "references": "https://git.kernel.org/stable/c/d16d57dedcb69c1a1257e0638f8698ce1f0ccbe5\nhttps://git.kernel.org/stable/c/719d3e71691db7c4f1658ba5a6d1472928121594",
    "id": "CVE-2026-23453",
    "bulletinFamily": "",
    "cwe": null,
    "cvelist": null,
    "sourceData": "Linux Linux 7a64bb388df3cf091afdd047c701039a13acd3b4\nLinux Linux 7a64bb388df3cf091afdd047c701039a13acd3b4\nLinux Linux 6.19",
    "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,
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            "privilegesRequired": "",
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            "confidentialityImpact": "",
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            "availabilityImpact": ""
        }
    },
    "href": "",
    "category_name": "CVE",
    "post_link": "",
    "product": "Linux",
    "version": "7a64bb388df3cf091afdd047c701039a13acd3b4",
    "vendor": "Linux",
    "ai_description": "",
    "ai_severity": "",
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    "ai_score": 0
}