CVE-2023-53520 (GCVE-0-2023-53520)
Vulnerability from cvelistv5
Published
2025-10-01 11:46
Modified
2025-10-01 11:46
Severity ?
Summary
In the Linux kernel, the following vulnerability has been resolved: Bluetooth: Fix hci_suspend_sync crash If hci_unregister_dev() frees the hci_dev object but hci_suspend_notifier may still be accessing it, it can cause the program to crash. Here's the call trace: <4>[102152.653246] Call Trace: <4>[102152.653254] hci_suspend_sync+0x109/0x301 [bluetooth] <4>[102152.653259] hci_suspend_dev+0x78/0xcd [bluetooth] <4>[102152.653263] hci_suspend_notifier+0x42/0x7a [bluetooth] <4>[102152.653268] notifier_call_chain+0x43/0x6b <4>[102152.653271] __blocking_notifier_call_chain+0x48/0x69 <4>[102152.653273] __pm_notifier_call_chain+0x22/0x39 <4>[102152.653276] pm_suspend+0x287/0x57c <4>[102152.653278] state_store+0xae/0xe5 <4>[102152.653281] kernfs_fop_write+0x109/0x173 <4>[102152.653284] __vfs_write+0x16f/0x1a2 <4>[102152.653287] ? selinux_file_permission+0xca/0x16f <4>[102152.653289] ? security_file_permission+0x36/0x109 <4>[102152.653291] vfs_write+0x114/0x21d <4>[102152.653293] __x64_sys_write+0x7b/0xdb <4>[102152.653296] do_syscall_64+0x59/0x194 <4>[102152.653299] entry_SYSCALL_64_after_hwframe+0x5c/0xc1 This patch holds the reference count of the hci_dev object while processing it in hci_suspend_notifier to avoid potential crash caused by the race condition.
References
Impacted products
Vendor Product Version
Linux Linux Version: 1da177e4c3f41524e886b7f1b8a0c1fc7321cac2
Version: 1da177e4c3f41524e886b7f1b8a0c1fc7321cac2
Version: 1da177e4c3f41524e886b7f1b8a0c1fc7321cac2
 Create a notification for this product.
Show details on NVD website

To clipboard 

{
  "containers": {
    "cna": {
      "affected": [
        {
          "defaultStatus": "unaffected",
          "product": "Linux",
          "programFiles": [
            "net/bluetooth/hci_core.c"
          ],
          "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
          "vendor": "Linux",
          "versions": [
            {
              "lessThan": "06e2b5ad72b60f90bfe565c201346532e271f484",
              "status": "affected",
              "version": "1da177e4c3f41524e886b7f1b8a0c1fc7321cac2",
              "versionType": "git"
            },
            {
              "lessThan": "f9c8ce5d665653e3cf71a76349d41d7a7f7947e6",
              "status": "affected",
              "version": "1da177e4c3f41524e886b7f1b8a0c1fc7321cac2",
              "versionType": "git"
            },
            {
              "lessThan": "573ebae162111063eedc6c838a659ba628f66a0f",
              "status": "affected",
              "version": "1da177e4c3f41524e886b7f1b8a0c1fc7321cac2",
              "versionType": "git"
            }
          ]
        },
        {
          "defaultStatus": "affected",
          "product": "Linux",
          "programFiles": [
            "net/bluetooth/hci_core.c"
          ],
          "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
          "vendor": "Linux",
          "versions": [
            {
              "lessThanOrEqual": "6.1.*",
              "status": "unaffected",
              "version": "6.1.55",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "6.5.*",
              "status": "unaffected",
              "version": "6.5.5",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "*",
              "status": "unaffected",
              "version": "6.6",
              "versionType": "original_commit_for_fix"
            }
          ]
        }
      ],
      "cpeApplicability": [
        {
          "nodes": [
            {
              "cpeMatch": [
                {
                  "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                  "versionEndExcluding": "6.1.55",
                  "vulnerable": true
                },
                {
                  "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                  "versionEndExcluding": "6.5.5",
                  "vulnerable": true
                },
                {
                  "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                  "versionEndExcluding": "6.6",
                  "vulnerable": true
                }
              ],
              "negate": false,
              "operator": "OR"
            }
          ]
        }
      ],
      "descriptions": [
        {
          "lang": "en",
          "value": "In the Linux kernel, the following vulnerability has been resolved:\n\nBluetooth: Fix hci_suspend_sync crash\n\nIf hci_unregister_dev() frees the hci_dev object but hci_suspend_notifier\nmay still be accessing it, it can cause the program to crash.\nHere\u0027s the call trace:\n  \u003c4\u003e[102152.653246] Call Trace:\n  \u003c4\u003e[102152.653254]  hci_suspend_sync+0x109/0x301 [bluetooth]\n  \u003c4\u003e[102152.653259]  hci_suspend_dev+0x78/0xcd [bluetooth]\n  \u003c4\u003e[102152.653263]  hci_suspend_notifier+0x42/0x7a [bluetooth]\n  \u003c4\u003e[102152.653268]  notifier_call_chain+0x43/0x6b\n  \u003c4\u003e[102152.653271]  __blocking_notifier_call_chain+0x48/0x69\n  \u003c4\u003e[102152.653273]  __pm_notifier_call_chain+0x22/0x39\n  \u003c4\u003e[102152.653276]  pm_suspend+0x287/0x57c\n  \u003c4\u003e[102152.653278]  state_store+0xae/0xe5\n  \u003c4\u003e[102152.653281]  kernfs_fop_write+0x109/0x173\n  \u003c4\u003e[102152.653284]  __vfs_write+0x16f/0x1a2\n  \u003c4\u003e[102152.653287]  ? selinux_file_permission+0xca/0x16f\n  \u003c4\u003e[102152.653289]  ? security_file_permission+0x36/0x109\n  \u003c4\u003e[102152.653291]  vfs_write+0x114/0x21d\n  \u003c4\u003e[102152.653293]  __x64_sys_write+0x7b/0xdb\n  \u003c4\u003e[102152.653296]  do_syscall_64+0x59/0x194\n  \u003c4\u003e[102152.653299]  entry_SYSCALL_64_after_hwframe+0x5c/0xc1\n\nThis patch holds the reference count of the hci_dev object while\nprocessing it in hci_suspend_notifier to avoid potential crash\ncaused by the race condition."
        }
      ],
      "providerMetadata": {
        "dateUpdated": "2025-10-01T11:46:07.355Z",
        "orgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
        "shortName": "Linux"
      },
      "references": [
        {
          "url": "https://git.kernel.org/stable/c/06e2b5ad72b60f90bfe565c201346532e271f484"
        },
        {
          "url": "https://git.kernel.org/stable/c/f9c8ce5d665653e3cf71a76349d41d7a7f7947e6"
        },
        {
          "url": "https://git.kernel.org/stable/c/573ebae162111063eedc6c838a659ba628f66a0f"
        }
      ],
      "title": "Bluetooth: Fix hci_suspend_sync crash",
      "x_generator": {
        "engine": "bippy-1.2.0"
      }
    }
  },
  "cveMetadata": {
    "assignerOrgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
    "assignerShortName": "Linux",
    "cveId": "CVE-2023-53520",
    "datePublished": "2025-10-01T11:46:07.355Z",
    "dateReserved": "2025-10-01T11:39:39.407Z",
    "dateUpdated": "2025-10-01T11:46:07.355Z",
    "state": "PUBLISHED"
  },
  "dataType": "CVE_RECORD",
  "dataVersion": "5.1",
  "vulnerability-lookup:meta": {
    "nvd": "{\"cve\":{\"id\":\"CVE-2023-53520\",\"sourceIdentifier\":\"416baaa9-dc9f-4396-8d5f-8c081fb06d67\",\"published\":\"2025-10-01T12:15:56.323\",\"lastModified\":\"2025-10-02T19:11:46.753\",\"vulnStatus\":\"Awaiting Analysis\",\"cveTags\":[],\"descriptions\":[{\"lang\":\"en\",\"value\":\"In the Linux kernel, the following vulnerability has been resolved:\\n\\nBluetooth: Fix hci_suspend_sync crash\\n\\nIf hci_unregister_dev() frees the hci_dev object but hci_suspend_notifier\\nmay still be accessing it, it can cause the program to crash.\\nHere\u0027s the call trace:\\n  \u003c4\u003e[102152.653246] Call Trace:\\n  \u003c4\u003e[102152.653254]  hci_suspend_sync+0x109/0x301 [bluetooth]\\n  \u003c4\u003e[102152.653259]  hci_suspend_dev+0x78/0xcd [bluetooth]\\n  \u003c4\u003e[102152.653263]  hci_suspend_notifier+0x42/0x7a [bluetooth]\\n  \u003c4\u003e[102152.653268]  notifier_call_chain+0x43/0x6b\\n  \u003c4\u003e[102152.653271]  __blocking_notifier_call_chain+0x48/0x69\\n  \u003c4\u003e[102152.653273]  __pm_notifier_call_chain+0x22/0x39\\n  \u003c4\u003e[102152.653276]  pm_suspend+0x287/0x57c\\n  \u003c4\u003e[102152.653278]  state_store+0xae/0xe5\\n  \u003c4\u003e[102152.653281]  kernfs_fop_write+0x109/0x173\\n  \u003c4\u003e[102152.653284]  __vfs_write+0x16f/0x1a2\\n  \u003c4\u003e[102152.653287]  ? selinux_file_permission+0xca/0x16f\\n  \u003c4\u003e[102152.653289]  ? security_file_permission+0x36/0x109\\n  \u003c4\u003e[102152.653291]  vfs_write+0x114/0x21d\\n  \u003c4\u003e[102152.653293]  __x64_sys_write+0x7b/0xdb\\n  \u003c4\u003e[102152.653296]  do_syscall_64+0x59/0x194\\n  \u003c4\u003e[102152.653299]  entry_SYSCALL_64_after_hwframe+0x5c/0xc1\\n\\nThis patch holds the reference count of the hci_dev object while\\nprocessing it in hci_suspend_notifier to avoid potential crash\\ncaused by the race condition.\"}],\"metrics\":{},\"references\":[{\"url\":\"https://git.kernel.org/stable/c/06e2b5ad72b60f90bfe565c201346532e271f484\",\"source\":\"416baaa9-dc9f-4396-8d5f-8c081fb06d67\"},{\"url\":\"https://git.kernel.org/stable/c/573ebae162111063eedc6c838a659ba628f66a0f\",\"source\":\"416baaa9-dc9f-4396-8d5f-8c081fb06d67\"},{\"url\":\"https://git.kernel.org/stable/c/f9c8ce5d665653e3cf71a76349d41d7a7f7947e6\",\"source\":\"416baaa9-dc9f-4396-8d5f-8c081fb06d67\"}]}}"
  }
}


Log in or create an account to share your comment.




Tags
Taxonomy of the tags.




Sightings

Author Source Type Date

Nomenclature

  • Seen: The vulnerability was mentioned, discussed, or seen somewhere by the user.
  • Confirmed: The vulnerability is confirmed from an analyst perspective.
  • Published Proof of Concept: A public proof of concept is available for this vulnerability.
  • Exploited: This vulnerability was exploited and seen by the user reporting the sighting.
  • Patched: This vulnerability was successfully patched by the user reporting the sighting.
  • Not exploited: This vulnerability was not exploited or seen by the user reporting the sighting.
  • Not confirmed: The user expresses doubt about the veracity of the vulnerability.
  • Not patched: This vulnerability was not successfully patched by the user reporting the sighting.