ghsa-2252-87pv-34g4
Vulnerability from github
Published
2024-04-04 09:30
Modified
2024-06-27 15:30
Details

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

Bluetooth: Avoid potential use-after-free in hci_error_reset

While handling the HCI_EV_HARDWARE_ERROR event, if the underlying BT controller is not responding, the GPIO reset mechanism would free the hci_dev and lead to a use-after-free in hci_error_reset.

Here's the call trace observed on a ChromeOS device with Intel AX201: queue_work_on+0x3e/0x6c __hci_cmd_sync_sk+0x2ee/0x4c0 [bluetooth ] ? init_wait_entry+0x31/0x31 __hci_cmd_sync+0x16/0x20 [bluetooth ] hci_error_reset+0x4f/0xa4 [bluetooth ] process_one_work+0x1d8/0x33f worker_thread+0x21b/0x373 kthread+0x13a/0x152 ? pr_cont_work+0x54/0x54 ? kthread_blkcg+0x31/0x31 ret_from_fork+0x1f/0x30

This patch holds the reference count on the hci_dev while processing a HCI_EV_HARDWARE_ERROR event to avoid potential crash.

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{
  "affected": [],
  "aliases": [
    "CVE-2024-26801"
  ],
  "database_specific": {
    "cwe_ids": [],
    "github_reviewed": false,
    "github_reviewed_at": null,
    "nvd_published_at": "2024-04-04T09:15:09Z",
    "severity": null
  },
  "details": "In the Linux kernel, the following vulnerability has been resolved:\n\nBluetooth: Avoid potential use-after-free in hci_error_reset\n\nWhile handling the HCI_EV_HARDWARE_ERROR event, if the underlying\nBT controller is not responding, the GPIO reset mechanism would\nfree the hci_dev and lead to a use-after-free in hci_error_reset.\n\nHere\u0027s the call trace observed on a ChromeOS device with Intel AX201:\n   queue_work_on+0x3e/0x6c\n   __hci_cmd_sync_sk+0x2ee/0x4c0 [bluetooth \u003cHASH:3b4a6\u003e]\n   ? init_wait_entry+0x31/0x31\n   __hci_cmd_sync+0x16/0x20 [bluetooth \u003cHASH:3b4a 6\u003e]\n   hci_error_reset+0x4f/0xa4 [bluetooth \u003cHASH:3b4a 6\u003e]\n   process_one_work+0x1d8/0x33f\n   worker_thread+0x21b/0x373\n   kthread+0x13a/0x152\n   ? pr_cont_work+0x54/0x54\n   ? kthread_blkcg+0x31/0x31\n    ret_from_fork+0x1f/0x30\n\nThis patch holds the reference count on the hci_dev while processing\na HCI_EV_HARDWARE_ERROR event to avoid potential crash.",
  "id": "GHSA-2252-87pv-34g4",
  "modified": "2024-06-27T15:30:38Z",
  "published": "2024-04-04T09:30:36Z",
  "references": [
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2024-26801"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/2449007d3f73b2842c9734f45f0aadb522daf592"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/2ab9a19d896f5a0dd386e1f001c5309bc35f433b"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/45085686b9559bfbe3a4f41d3d695a520668f5e1"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/6dd0a9dfa99f8990a08eb8fdd8e79bee31c7d8e2"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/98fb98fd37e42fd4ce13ff657ea64503e24b6090"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/da4569d450b193e39e87119fd316c0291b585d14"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/dd594cdc24f2e48dab441732e6dfcafd6b0711d1"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/e0b278650f07acf2e0932149183458468a731c03"
    },
    {
      "type": "WEB",
      "url": "https://lists.debian.org/debian-lts-announce/2024/06/msg00017.html"
    },
    {
      "type": "WEB",
      "url": "https://lists.debian.org/debian-lts-announce/2024/06/msg00020.html"
    }
  ],
  "schema_version": "1.4.0",
  "severity": []
}


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