ghsa-67hh-63jq-82xv
Vulnerability from github
Published
2024-10-21 21:30
Modified
2024-10-25 21:31
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:

can: af_can: fix NULL pointer dereference in can_rcv_filter

Analogue to commit 8aa59e355949 ("can: af_can: fix NULL pointer dereference in can_rx_register()") we need to check for a missing initialization of ml_priv in the receive path of CAN frames.

Since commit 4e096a18867a ("net: introduce CAN specific pointer in the struct net_device") the check for dev->type to be ARPHRD_CAN is not sufficient anymore since bonding or tun netdevices claim to be CAN devices but do not initialize ml_priv accordingly.

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{
  "affected": [],
  "aliases": [
    "CVE-2022-48977"
  ],
  "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\ncan: af_can: fix NULL pointer dereference in can_rcv_filter\n\nAnalogue to commit 8aa59e355949 (\"can: af_can: fix NULL pointer\ndereference in can_rx_register()\") we need to check for a missing\ninitialization of ml_priv in the receive path of CAN frames.\n\nSince commit 4e096a18867a (\"net: introduce CAN specific pointer in the\nstruct net_device\") the check for dev-\u003etype to be ARPHRD_CAN is not\nsufficient anymore since bonding or tun netdevices claim to be CAN\ndevices but do not initialize ml_priv accordingly.",
  "id": "GHSA-67hh-63jq-82xv",
  "modified": "2024-10-25T21:31:27Z",
  "published": "2024-10-21T21:30:51Z",
  "references": [
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2022-48977"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/0acc442309a0a1b01bcdaa135e56e6398a49439c"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/3982652957e8d79ac32efcb725450580650a8644"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/c142cba37de29f740a3852f01f59876af8ae462a"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/c42221efb1159d6a3c89e96685ee38acdce86b6f"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/fcc63f2f7ee3038d53216edd0d8291e57c752557"
    }
  ],
  "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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