net: wwan: fix global oob in wwan_rtnl_policy

{
  "id": "493d948586c8d8fda547c0b444ca66082e67facc81781bf68ac2e003c1aaa5e3",
  "url": "https://osv.dev/vulnerability/CVE-2024-50128",
  "method": "structured",
  "payload": {
    "kind": "advisory",
    "title": "net: wwan: fix global oob in wwan_rtnl_policy",
    "summary": "In the Linux kernel, the following vulnerability has been resolved: net: wwan: fix global oob in wwan_rtnl_policy The variable wwan_rtnl_link_ops assign a *bigger* maxtype which leads to a global out-of-bounds read when parsing the netlink attributes. Exactly same bug cause as the oob fixed in commit b33fb5b801c6 (\"net: qualcomm: rmnet: fix global oob in rmnet_policy\"). ================================================================== BUG: KASAN: global-out-of-bounds in validate_nla lib/nlattr.c:388 [inline] BUG: KASAN: global-out-of-bounds in __nla_validate_parse+0x19d7/0x29a0 lib/nlattr.c:603 Read of size 1 at addr ffffffff8b09cb60 by task syz.1.66276/323862 CPU: 0 PID: 323862 Comm: syz.1.66276 Not tainted 6.1.70 #1 Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS 1.13.0-1ubuntu1.1 04/01/2014 Call Trace: __dump_stack lib/dump_stack.c:88 [inline] dump_stack_lvl+0x177/0x231 lib/dump_stack.c:106 print_address_description mm/kasan/report.c:284 [inline] print_report+0x14f/0x750 mm/kasan/report.c:395 kasan_report+0x139/0x170 mm/kasan/report.c:495 validate_nla lib/nlattr.c:388 [inline] __nla_validate_parse+0x19d7/0x29a0 lib/nlattr.c:603 __nla_parse+0x3c/0x50 lib/nlattr.c:700 nla_parse_nested_deprecated include/net/netlink.h:1269 [inline] __rtnl_newlink net/core/rtnetlink.c:3514 [inline] rtnl_newlink+0x7bc/0x1fd0 net/core/rtnetlink.c:3623 rtnetlink_rcv_msg+0x794/0xef0 net/core/rtnetlink.c:6122 netlink_rcv_skb+0x1de/0x420 net/netlink/af_netlink.c:2508 netlink_unicast_ker",
    "evidence": "osv:CVE-2024-50128",
    "products": [
      {
        "name": {
          "value": "Kernel",
          "evidence": "/affected/1/package/name"
        },
        "prerequisites": [],
        "fixed_versions": [
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            "value": "5.15.170",
            "evidence": "/affected/1/ranges"
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          {
            "value": "6.1.115",
            "evidence": "/affected/1/ranges"
          },
          {
            "value": "6.6.59",
            "evidence": "/affected/1/ranges"
          },
          {
            "value": "6.11.6",
            "evidence": "/affected/1/ranges"
          }
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    "severity": "high",
    "structured": {
      "id": "CVE-2024-50128",
      "aliases": [
        "CVE-2024-50128"
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      "metrics": [
        {
          "type": "CVSS_V3",
          "score": "CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H"
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            "name": "Kernel",
            "ecosystem": "Linux"
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      ],
      "modified": "2026-10-28T02:30:24.765533808Z",
      "provider": "osv",
      "references": [
        "https://git.kernel.org/stable/c/47dd5447cab8ce30a847a0337d5341ae4c7476a7",
        "https://git.kernel.org/stable/c/69076f8435c1c5dae5f814eaf4c361d1f00b22a3",
        "https://git.kernel.org/stable/c/9683804e36668f6093fb06e202eed2f188ba437e",
        "https://git.kernel.org/stable/c/a3ffce63dcc0c208edd4d196e17baed22ebcb643",
        "https://git.kernel.org/stable/c/c9a0aed51977198df005d0a623090e38e2d77d7b",
        "https://lists.debian.org/debian-lts-announce/2025/01/msg00001.html",
        "https://github.com/CVEProject/cvelistV5/tree/main/cves/2024/50xxx/CVE-2024-50128.json",
        "https://nvd.nist.gov/vuln/detail/CVE-2024-50128",
        "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git"
      ],
      "provider_metadata": {
        "cna_assigner": "Linux",
        "osv_generated_from": "https://github.com/CVEProject/cvelistV5/tree/main/cves/2024/50xxx/CVE-2024-50128.json"
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        "evidence": "/id"
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    "security_relevant": true,
    "severity_evidence": "/severity/0/score"
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  "source_id": "core-osv",
  "document_id": 491285,
  "published_at": "2024-11-05T17:10:55.044+00:00"
}