net: usb: kaweth: remove TX queue manipulation in kaweth_set_rx_mode_CVE-2026-43180

{
    "lastseen": "",
    "description": "In the Linux kernel, the following vulnerability has been resolved:\n\nnet: usb: kaweth: remove TX queue manipulation in kaweth_set_rx_mode\n\nkaweth_set_rx_mode(), the ndo_set_rx_mode callback, calls\nnetif_stop_queue() and netif_wake_queue(). These are TX queue flow\ncontrol functions unrelated to RX multicast configuration.\n\nThe premature netif_wake_queue() can re-enable TX while tx_urb is still\nin-flight, leading to a double usb_submit_urb() on the same URB:\n\nkaweth_start_xmit() {\n    netif_stop_queue();\n    usb_submit_urb(kaweth->tx_urb);\n}\n\nkaweth_set_rx_mode() {\n    netif_stop_queue();\n    netif_wake_queue();             // wakes TX queue before URB is done\n}\n\nkaweth_start_xmit() {\n    netif_stop_queue();\n    usb_submit_urb(kaweth->tx_urb); // URB submitted while active\n}\n\nThis triggers the WARN in usb_submit_urb():\n\n  \"URB submitted while active\"\n\nThis is a similar class of bug fixed in rtl8150 by\n\n- commit 958baf5eaee3 (\"net: usb: Remove disruptive netif_wake_queue in rtl8150_set_multicast\").\n\nAlso kaweth_set_rx_mode() is already functionally broken, the\nreal set_rx_mode action is performed by kaweth_async_set_rx_mode(),\nwhich in turn is not a no-op only at ndo_open() time.",
    "published": "2026-05-06T11:27:52.983Z",
    "modified": "2026-05-08T12:41:00.768Z",
    "type": "cve",
    "title": "net: usb: kaweth: remove TX queue manipulation in kaweth_set_rx_mode",
    "source": "Linux",
    "references": "https://git.kernel.org/stable/c/443a830b1dc4f85c7560da59d4494b629feee215\nhttps://git.kernel.org/stable/c/586318c2730433184c6f1d21183e346ddf25e81d\nhttps://git.kernel.org/stable/c/a2cd4b4db315a845a5603d08c9d03b11ddfc799d\nhttps://git.kernel.org/stable/c/ef9b10a020503888eb6c8ed85a3d901a624ede4c\nhttps://git.kernel.org/stable/c/9c79b839a63980c7da7ec5db895198045e154112\nhttps://git.kernel.org/stable/c/fc393af769af845d9985e2845e49553d8f015a64\nhttps://git.kernel.org/stable/c/8367c0e90126426e60581e4c07e1ec4411a0f843\nhttps://git.kernel.org/stable/c/64868f5ecadeb359a49bc4485bfa7c497047f13a",
    "id": "CVE-2026-43180",
    "bulletinFamily": "",
    "cwe": null,
    "cvelist": null,
    "sourceData": "Linux Linux 1da177e4c3f41524e886b7f1b8a0c1fc7321cac2\nLinux Linux 1da177e4c3f41524e886b7f1b8a0c1fc7321cac2\nLinux Linux 1da177e4c3f41524e886b7f1b8a0c1fc7321cac2\nLinux Linux 1da177e4c3f41524e886b7f1b8a0c1fc7321cac2\nLinux Linux 1da177e4c3f41524e886b7f1b8a0c1fc7321cac2\nLinux Linux 1da177e4c3f41524e886b7f1b8a0c1fc7321cac2\nLinux Linux 1da177e4c3f41524e886b7f1b8a0c1fc7321cac2\nLinux Linux 1da177e4c3f41524e886b7f1b8a0c1fc7321cac2\nLinux Linux 2.6.12",
    "sourceHref": "",
    "cvss": {
        "score": 7.8,
        "severity": "HIGH",
        "vector": "CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H",
        "version": "3.1"
    },
    "cvss2": [],
    "cvss3": {
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        "baseScore": 0,
        "baseSeverity": "",
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        "attackComplexity": "",
        "privilegesRequired": "",
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        "scope": "",
        "confidentialityImpact": "",
        "integrityImpact": "",
        "availabilityImpact": "",
        "cvssV3": {
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            "baseScore": 0,
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            "privilegesRequired": "",
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        }
    },
    "href": "",
    "category_name": "CVE",
    "post_link": "",
    "product": "Linux",
    "version": "1da177e4c3f41524e886b7f1b8a0c1fc7321cac2",
    "vendor": "Linux",
    "ai_description": "",
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    "ai_score": 0
}