ghsa-64w2-5c96-v3qj
Vulnerability from github
Published
2024-10-21 21:30
Modified
2024-10-25 15:31
Severity ?
5.5 (Medium) - CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H
Details

In the Linux kernel, the following vulnerability has been resolved:

mac802154: fix missing INIT_LIST_HEAD in ieee802154_if_add()

Kernel fault injection test reports null-ptr-deref as follows:

BUG: kernel NULL pointer dereference, address: 0000000000000008 RIP: 0010:cfg802154_netdev_notifier_call+0x120/0x310 include/linux/list.h:114 Call Trace: raw_notifier_call_chain+0x6d/0xa0 kernel/notifier.c:87 call_netdevice_notifiers_info+0x6e/0xc0 net/core/dev.c:1944 unregister_netdevice_many_notify+0x60d/0xcb0 net/core/dev.c:1982 unregister_netdevice_queue+0x154/0x1a0 net/core/dev.c:10879 register_netdevice+0x9a8/0xb90 net/core/dev.c:10083 ieee802154_if_add+0x6ed/0x7e0 net/mac802154/iface.c:659 ieee802154_register_hw+0x29c/0x330 net/mac802154/main.c:229 mcr20a_probe+0xaaa/0xcb1 drivers/net/ieee802154/mcr20a.c:1316

ieee802154_if_add() allocates wpan_dev as netdev's private data, but not init the list in struct wpan_dev. cfg802154_netdev_notifier_call() manage the list when device register/unregister, and may lead to null-ptr-deref.

Use INIT_LIST_HEAD() on it to initialize it correctly.

Show details on source website

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{
  "affected": [],
  "aliases": [
    "CVE-2022-48972"
  ],
  "database_specific": {
    "cwe_ids": [
      "CWE-476"
    ],
    "github_reviewed": false,
    "github_reviewed_at": null,
    "nvd_published_at": "2024-10-21T20:15:09Z",
    "severity": "MODERATE"
  },
  "details": "In the Linux kernel, the following vulnerability has been resolved:\n\nmac802154: fix missing INIT_LIST_HEAD in ieee802154_if_add()\n\nKernel fault injection test reports null-ptr-deref as follows:\n\nBUG: kernel NULL pointer dereference, address: 0000000000000008\nRIP: 0010:cfg802154_netdev_notifier_call+0x120/0x310 include/linux/list.h:114\nCall Trace:\n \u003cTASK\u003e\n raw_notifier_call_chain+0x6d/0xa0 kernel/notifier.c:87\n call_netdevice_notifiers_info+0x6e/0xc0 net/core/dev.c:1944\n unregister_netdevice_many_notify+0x60d/0xcb0 net/core/dev.c:1982\n unregister_netdevice_queue+0x154/0x1a0 net/core/dev.c:10879\n register_netdevice+0x9a8/0xb90 net/core/dev.c:10083\n ieee802154_if_add+0x6ed/0x7e0 net/mac802154/iface.c:659\n ieee802154_register_hw+0x29c/0x330 net/mac802154/main.c:229\n mcr20a_probe+0xaaa/0xcb1 drivers/net/ieee802154/mcr20a.c:1316\n\nieee802154_if_add() allocates wpan_dev as netdev\u0027s private data, but not\ninit the list in struct wpan_dev. cfg802154_netdev_notifier_call() manage\nthe list when device register/unregister, and may lead to null-ptr-deref.\n\nUse INIT_LIST_HEAD() on it to initialize it correctly.",
  "id": "GHSA-64w2-5c96-v3qj",
  "modified": "2024-10-25T15:31:26Z",
  "published": "2024-10-21T21:30:51Z",
  "references": [
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2022-48972"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/1831d4540406708e48239cf38fd9c3b7ea98e08f"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/42c319635c0cf7eb36eccac6cda76532f47b61a3"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/623918f40fa68e3bb21312a3fafb90f491bf5358"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/7410f4d1221bb182510b7778ab6eefa8b9b7102d"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/9980a3ea20de40c83817877106c909cb032692d2"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/a110287ef4a423980309490df632e1c1e73b3dc9"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/b3d72d3135d2ef68296c1ee174436efd65386f04"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/f00c84fb1635c27ba24ec5df65d5bd7d7dc00008"
    }
  ],
  "schema_version": "1.4.0",
  "severity": [
    {
      "score": "CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H",
      "type": "CVSS_V3"
    }
  ]
}


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