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CVE-2025-68306 (GCVE-0-2025-68306)

Vulnerability from cvelistv5 – Published: 2025-12-16 15:06 – Updated: 2026-05-11 21:50
VLAI
Title
Bluetooth: btusb: mediatek: Fix kernel crash when releasing mtk iso interface
Summary
In the Linux kernel, the following vulnerability has been resolved: Bluetooth: btusb: mediatek: Fix kernel crash when releasing mtk iso interface When performing reset tests and encountering abnormal card drop issues that lead to a kernel crash, it is necessary to perform a null check before releasing resources to avoid attempting to release a null pointer. <4>[ 29.158070] Hardware name: Google Quigon sku196612/196613 board (DT) <4>[ 29.158076] Workqueue: hci0 hci_cmd_sync_work [bluetooth] <4>[ 29.158154] pstate: 20400009 (nzCv daif +PAN -UAO -TCO -DIT -SSBS BTYPE=--) <4>[ 29.158162] pc : klist_remove+0x90/0x158 <4>[ 29.158174] lr : klist_remove+0x88/0x158 <4>[ 29.158180] sp : ffffffc0846b3c00 <4>[ 29.158185] pmr_save: 000000e0 <4>[ 29.158188] x29: ffffffc0846b3c30 x28: ffffff80cd31f880 x27: ffffff80c1bdc058 <4>[ 29.158199] x26: dead000000000100 x25: ffffffdbdc624ea3 x24: ffffff80c1bdc4c0 <4>[ 29.158209] x23: ffffffdbdc62a3e6 x22: ffffff80c6c07000 x21: ffffffdbdc829290 <4>[ 29.158219] x20: 0000000000000000 x19: ffffff80cd3e0648 x18: 000000031ec97781 <4>[ 29.158229] x17: ffffff80c1bdc4a8 x16: ffffffdc10576548 x15: ffffff80c1180428 <4>[ 29.158238] x14: 0000000000000000 x13: 000000000000e380 x12: 0000000000000018 <4>[ 29.158248] x11: ffffff80c2a7fd10 x10: 0000000000000000 x9 : 0000000100000000 <4>[ 29.158257] x8 : 0000000000000000 x7 : 7f7f7f7f7f7f7f7f x6 : 2d7223ff6364626d <4>[ 29.158266] x5 : 0000008000000000 x4 : 0000000000000020 x3 : 2e7325006465636e <4>[ 29.158275] x2 : ffffffdc11afeff8 x1 : 0000000000000000 x0 : ffffffdc11be4d0c <4>[ 29.158285] Call trace: <4>[ 29.158290] klist_remove+0x90/0x158 <4>[ 29.158298] device_release_driver_internal+0x20c/0x268 <4>[ 29.158308] device_release_driver+0x1c/0x30 <4>[ 29.158316] usb_driver_release_interface+0x70/0x88 <4>[ 29.158325] btusb_mtk_release_iso_intf+0x68/0xd8 [btusb (HASH:e8b6 5)] <4>[ 29.158347] btusb_mtk_reset+0x5c/0x480 [btusb (HASH:e8b6 5)] <4>[ 29.158361] hci_cmd_sync_work+0x10c/0x188 [bluetooth (HASH:a4fa 6)] <4>[ 29.158430] process_scheduled_works+0x258/0x4e8 <4>[ 29.158441] worker_thread+0x300/0x428 <4>[ 29.158448] kthread+0x108/0x1d0 <4>[ 29.158455] ret_from_fork+0x10/0x20 <0>[ 29.158467] Code: 91343000 940139d1 f9400268 927ff914 (f9401297) <4>[ 29.158474] ---[ end trace 0000000000000000 ]--- <0>[ 29.167129] Kernel panic - not syncing: Oops: Fatal exception <2>[ 29.167144] SMP: stopping secondary CPUs <4>[ 29.167158] ------------[ cut here ]------------
Severity
No CVSS data available.
Assigner
References
Impacted products
Vendor Product Version CPE status
Linux Linux Affected: ceac1cb0259de682d78f5c784ef8e0b13022e9d9 , < 421e88a0d85782786b7a1764c75518b4845e07b3 (git)
Affected: ceac1cb0259de682d78f5c784ef8e0b13022e9d9 , < faae9f2ea8806f2499186448adbf94689b47b82b (git)
Affected: ceac1cb0259de682d78f5c784ef8e0b13022e9d9 , < 4015b979767125cf8a2233a145a3b3af78bfd8fb (git)
guessed Create a notification for this product.
Linux Linux Affected: 6.11
Unaffected: 0 , < 6.11 (semver)
Unaffected: 6.12.61 , ≤ 6.12.* (semver)
Unaffected: 6.17.11 , ≤ 6.17.* (semver)
Unaffected: 6.18 , ≤ * (original_commit_for_fix)
guessed Create a notification for this product.
Show details on NVD website
To clipboard 

{
  "containers": {
    "cna": {
      "affected": [
        {
          "defaultStatus": "unaffected",
          "product": "Linux",
          "programFiles": [
            "drivers/bluetooth/btusb.c",
            "include/net/bluetooth/hci_core.h"
          ],
          "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
          "vendor": "Linux",
          "versions": [
            {
              "lessThan": "421e88a0d85782786b7a1764c75518b4845e07b3",
              "status": "affected",
              "version": "ceac1cb0259de682d78f5c784ef8e0b13022e9d9",
              "versionType": "git"
            },
            {
              "lessThan": "faae9f2ea8806f2499186448adbf94689b47b82b",
              "status": "affected",
              "version": "ceac1cb0259de682d78f5c784ef8e0b13022e9d9",
              "versionType": "git"
            },
            {
              "lessThan": "4015b979767125cf8a2233a145a3b3af78bfd8fb",
              "status": "affected",
              "version": "ceac1cb0259de682d78f5c784ef8e0b13022e9d9",
              "versionType": "git"
            }
          ]
        },
        {
          "defaultStatus": "affected",
          "product": "Linux",
          "programFiles": [
            "drivers/bluetooth/btusb.c",
            "include/net/bluetooth/hci_core.h"
          ],
          "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
          "vendor": "Linux",
          "versions": [
            {
              "status": "affected",
              "version": "6.11"
            },
            {
              "lessThan": "6.11",
              "status": "unaffected",
              "version": "0",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "6.12.*",
              "status": "unaffected",
              "version": "6.12.61",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "6.17.*",
              "status": "unaffected",
              "version": "6.17.11",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "*",
              "status": "unaffected",
              "version": "6.18",
              "versionType": "original_commit_for_fix"
            }
          ]
        }
      ],
      "cpeApplicability": [
        {
          "nodes": [
            {
              "cpeMatch": [
                {
                  "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                  "versionEndExcluding": "6.12.61",
                  "versionStartIncluding": "6.11",
                  "vulnerable": true
                },
                {
                  "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                  "versionEndExcluding": "6.17.11",
                  "versionStartIncluding": "6.11",
                  "vulnerable": true
                },
                {
                  "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                  "versionEndExcluding": "6.18",
                  "versionStartIncluding": "6.11",
                  "vulnerable": true
                }
              ],
              "negate": false,
              "operator": "OR"
            }
          ]
        }
      ],
      "descriptions": [
        {
          "lang": "en",
          "value": "In the Linux kernel, the following vulnerability has been resolved:\n\nBluetooth: btusb: mediatek: Fix kernel crash when releasing mtk iso interface\n\nWhen performing reset tests and encountering abnormal card drop issues\nthat lead to a kernel crash, it is necessary to perform a null check\nbefore releasing resources to avoid attempting to release a null pointer.\n\n\u003c4\u003e[   29.158070] Hardware name: Google Quigon sku196612/196613 board (DT)\n\u003c4\u003e[   29.158076] Workqueue: hci0 hci_cmd_sync_work [bluetooth]\n\u003c4\u003e[   29.158154] pstate: 20400009 (nzCv daif +PAN -UAO -TCO -DIT -SSBS BTYPE=--)\n\u003c4\u003e[   29.158162] pc : klist_remove+0x90/0x158\n\u003c4\u003e[   29.158174] lr : klist_remove+0x88/0x158\n\u003c4\u003e[   29.158180] sp : ffffffc0846b3c00\n\u003c4\u003e[   29.158185] pmr_save: 000000e0\n\u003c4\u003e[   29.158188] x29: ffffffc0846b3c30 x28: ffffff80cd31f880 x27: ffffff80c1bdc058\n\u003c4\u003e[   29.158199] x26: dead000000000100 x25: ffffffdbdc624ea3 x24: ffffff80c1bdc4c0\n\u003c4\u003e[   29.158209] x23: ffffffdbdc62a3e6 x22: ffffff80c6c07000 x21: ffffffdbdc829290\n\u003c4\u003e[   29.158219] x20: 0000000000000000 x19: ffffff80cd3e0648 x18: 000000031ec97781\n\u003c4\u003e[   29.158229] x17: ffffff80c1bdc4a8 x16: ffffffdc10576548 x15: ffffff80c1180428\n\u003c4\u003e[   29.158238] x14: 0000000000000000 x13: 000000000000e380 x12: 0000000000000018\n\u003c4\u003e[   29.158248] x11: ffffff80c2a7fd10 x10: 0000000000000000 x9 : 0000000100000000\n\u003c4\u003e[   29.158257] x8 : 0000000000000000 x7 : 7f7f7f7f7f7f7f7f x6 : 2d7223ff6364626d\n\u003c4\u003e[   29.158266] x5 : 0000008000000000 x4 : 0000000000000020 x3 : 2e7325006465636e\n\u003c4\u003e[   29.158275] x2 : ffffffdc11afeff8 x1 : 0000000000000000 x0 : ffffffdc11be4d0c\n\u003c4\u003e[   29.158285] Call trace:\n\u003c4\u003e[   29.158290]  klist_remove+0x90/0x158\n\u003c4\u003e[   29.158298]  device_release_driver_internal+0x20c/0x268\n\u003c4\u003e[   29.158308]  device_release_driver+0x1c/0x30\n\u003c4\u003e[   29.158316]  usb_driver_release_interface+0x70/0x88\n\u003c4\u003e[   29.158325]  btusb_mtk_release_iso_intf+0x68/0xd8 [btusb (HASH:e8b6 5)]\n\u003c4\u003e[   29.158347]  btusb_mtk_reset+0x5c/0x480 [btusb (HASH:e8b6 5)]\n\u003c4\u003e[   29.158361]  hci_cmd_sync_work+0x10c/0x188 [bluetooth (HASH:a4fa 6)]\n\u003c4\u003e[   29.158430]  process_scheduled_works+0x258/0x4e8\n\u003c4\u003e[   29.158441]  worker_thread+0x300/0x428\n\u003c4\u003e[   29.158448]  kthread+0x108/0x1d0\n\u003c4\u003e[   29.158455]  ret_from_fork+0x10/0x20\n\u003c0\u003e[   29.158467] Code: 91343000 940139d1 f9400268 927ff914 (f9401297)\n\u003c4\u003e[   29.158474] ---[ end trace 0000000000000000 ]---\n\u003c0\u003e[   29.167129] Kernel panic - not syncing: Oops: Fatal exception\n\u003c2\u003e[   29.167144] SMP: stopping secondary CPUs\n\u003c4\u003e[   29.167158] ------------[ cut here ]------------"
        }
      ],
      "providerMetadata": {
        "dateUpdated": "2026-05-11T21:50:37.297Z",
        "orgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
        "shortName": "Linux"
      },
      "references": [
        {
          "url": "https://git.kernel.org/stable/c/421e88a0d85782786b7a1764c75518b4845e07b3"
        },
        {
          "url": "https://git.kernel.org/stable/c/faae9f2ea8806f2499186448adbf94689b47b82b"
        },
        {
          "url": "https://git.kernel.org/stable/c/4015b979767125cf8a2233a145a3b3af78bfd8fb"
        }
      ],
      "title": "Bluetooth: btusb: mediatek: Fix kernel crash when releasing mtk iso interface",
      "x_generator": {
        "engine": "bippy-1.2.0"
      }
    }
  },
  "cveMetadata": {
    "assignerOrgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
    "assignerShortName": "Linux",
    "cveId": "CVE-2025-68306",
    "datePublished": "2025-12-16T15:06:23.486Z",
    "dateReserved": "2025-12-16T14:48:05.294Z",
    "dateUpdated": "2026-05-11T21:50:37.297Z",
    "state": "PUBLISHED"
  },
  "dataType": "CVE_RECORD",
  "dataVersion": "5.2",
  "vulnerability-lookup:meta": {
    "epss": {
      "cve": "CVE-2025-68306",
      "date": "2026-09-16",
      "epss": "0.00192",
      "percentile": "0.0908"
    },
    "nvd": "{\"cve\":{\"id\":\"CVE-2025-68306\",\"sourceIdentifier\":\"416baaa9-dc9f-4396-8d5f-8c081fb06d67\",\"published\":\"2025-12-16T16:16:10.137\",\"lastModified\":\"2026-06-17T09:58:54.410\",\"vulnStatus\":\"Deferred\",\"cveTags\":[],\"descriptions\":[{\"lang\":\"en\",\"value\":\"In the Linux kernel, the following vulnerability has been resolved:\\n\\nBluetooth: btusb: mediatek: Fix kernel crash when releasing mtk iso interface\\n\\nWhen performing reset tests and encountering abnormal card drop issues\\nthat lead to a kernel crash, it is necessary to perform a null check\\nbefore releasing resources to avoid attempting to release a null pointer.\\n\\n\u003c4\u003e[   29.158070] Hardware name: Google Quigon sku196612/196613 board (DT)\\n\u003c4\u003e[   29.158076] Workqueue: hci0 hci_cmd_sync_work [bluetooth]\\n\u003c4\u003e[   29.158154] pstate: 20400009 (nzCv daif +PAN -UAO -TCO -DIT -SSBS BTYPE=--)\\n\u003c4\u003e[   29.158162] pc : klist_remove+0x90/0x158\\n\u003c4\u003e[   29.158174] lr : klist_remove+0x88/0x158\\n\u003c4\u003e[   29.158180] sp : ffffffc0846b3c00\\n\u003c4\u003e[   29.158185] pmr_save: 000000e0\\n\u003c4\u003e[   29.158188] x29: ffffffc0846b3c30 x28: ffffff80cd31f880 x27: ffffff80c1bdc058\\n\u003c4\u003e[   29.158199] x26: dead000000000100 x25: ffffffdbdc624ea3 x24: ffffff80c1bdc4c0\\n\u003c4\u003e[   29.158209] x23: ffffffdbdc62a3e6 x22: ffffff80c6c07000 x21: ffffffdbdc829290\\n\u003c4\u003e[   29.158219] x20: 0000000000000000 x19: ffffff80cd3e0648 x18: 000000031ec97781\\n\u003c4\u003e[   29.158229] x17: ffffff80c1bdc4a8 x16: ffffffdc10576548 x15: ffffff80c1180428\\n\u003c4\u003e[   29.158238] x14: 0000000000000000 x13: 000000000000e380 x12: 0000000000000018\\n\u003c4\u003e[   29.158248] x11: ffffff80c2a7fd10 x10: 0000000000000000 x9 : 0000000100000000\\n\u003c4\u003e[   29.158257] x8 : 0000000000000000 x7 : 7f7f7f7f7f7f7f7f x6 : 2d7223ff6364626d\\n\u003c4\u003e[   29.158266] x5 : 0000008000000000 x4 : 0000000000000020 x3 : 2e7325006465636e\\n\u003c4\u003e[   29.158275] x2 : ffffffdc11afeff8 x1 : 0000000000000000 x0 : ffffffdc11be4d0c\\n\u003c4\u003e[   29.158285] Call trace:\\n\u003c4\u003e[   29.158290]  klist_remove+0x90/0x158\\n\u003c4\u003e[   29.158298]  device_release_driver_internal+0x20c/0x268\\n\u003c4\u003e[   29.158308]  device_release_driver+0x1c/0x30\\n\u003c4\u003e[   29.158316]  usb_driver_release_interface+0x70/0x88\\n\u003c4\u003e[   29.158325]  btusb_mtk_release_iso_intf+0x68/0xd8 [btusb (HASH:e8b6 5)]\\n\u003c4\u003e[   29.158347]  btusb_mtk_reset+0x5c/0x480 [btusb (HASH:e8b6 5)]\\n\u003c4\u003e[   29.158361]  hci_cmd_sync_work+0x10c/0x188 [bluetooth (HASH:a4fa 6)]\\n\u003c4\u003e[   29.158430]  process_scheduled_works+0x258/0x4e8\\n\u003c4\u003e[   29.158441]  worker_thread+0x300/0x428\\n\u003c4\u003e[   29.158448]  kthread+0x108/0x1d0\\n\u003c4\u003e[   29.158455]  ret_from_fork+0x10/0x20\\n\u003c0\u003e[   29.158467] Code: 91343000 940139d1 f9400268 927ff914 (f9401297)\\n\u003c4\u003e[   29.158474] ---[ end trace 0000000000000000 ]---\\n\u003c0\u003e[   29.167129] Kernel panic - not syncing: Oops: Fatal exception\\n\u003c2\u003e[   29.167144] SMP: stopping secondary CPUs\\n\u003c4\u003e[   29.167158] ------------[ cut here ]------------\"}],\"affected\":[{\"source\":\"416baaa9-dc9f-4396-8d5f-8c081fb06d67\",\"affectedData\":[{\"vendor\":\"Linux\",\"product\":\"Linux\",\"defaultStatus\":\"unaffected\",\"programFiles\":[\"drivers/bluetooth/btusb.c\",\"include/net/bluetooth/hci_core.h\"],\"repo\":\"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git\",\"versions\":[{\"version\":\"ceac1cb0259de682d78f5c784ef8e0b13022e9d9\",\"lessThan\":\"421e88a0d85782786b7a1764c75518b4845e07b3\",\"versionType\":\"git\",\"status\":\"affected\"},{\"version\":\"ceac1cb0259de682d78f5c784ef8e0b13022e9d9\",\"lessThan\":\"faae9f2ea8806f2499186448adbf94689b47b82b\",\"versionType\":\"git\",\"status\":\"affected\"},{\"version\":\"ceac1cb0259de682d78f5c784ef8e0b13022e9d9\",\"lessThan\":\"4015b979767125cf8a2233a145a3b3af78bfd8fb\",\"versionType\":\"git\",\"status\":\"affected\"}]},{\"vendor\":\"Linux\",\"product\":\"Linux\",\"defaultStatus\":\"affected\",\"programFiles\":[\"drivers/bluetooth/btusb.c\",\"include/net/bluetooth/hci_core.h\"],\"repo\":\"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git\",\"versions\":[{\"version\":\"6.11\",\"status\":\"affected\"},{\"version\":\"0\",\"lessThan\":\"6.11\",\"versionType\":\"semver\",\"status\":\"unaffected\"},{\"version\":\"6.12.61\",\"lessThanOrEqual\":\"6.12.*\",\"versionType\":\"semver\",\"status\":\"unaffected\"},{\"version\":\"6.17.11\",\"lessThanOrEqual\":\"6.17.*\",\"versionType\":\"semver\",\"status\":\"unaffected\"},{\"version\":\"6.18\",\"lessThanOrEqual\":\"*\",\"versionType\":\"original_commit_for_fix\",\"status\":\"unaffected\"}]}]}],\"metrics\":{},\"references\":[{\"url\":\"https://git.kernel.org/stable/c/4015b979767125cf8a2233a145a3b3af78bfd8fb\",\"source\":\"416baaa9-dc9f-4396-8d5f-8c081fb06d67\"},{\"url\":\"https://git.kernel.org/stable/c/421e88a0d85782786b7a1764c75518b4845e07b3\",\"source\":\"416baaa9-dc9f-4396-8d5f-8c081fb06d67\"},{\"url\":\"https://git.kernel.org/stable/c/faae9f2ea8806f2499186448adbf94689b47b82b\",\"source\":\"416baaa9-dc9f-4396-8d5f-8c081fb06d67\"}]}}",
    "redhat_vex": {
      "aggregate_severity": "Low",
      "current_release_date": "2026-06-30T10:13:13+00:00",
      "cve": "CVE-2025-68306",
      "id": "CVE-2025-68306",
      "initial_release_date": "2025-12-16T00:00:00+00:00",
      "product_status:known_affected": "198",
      "product_status:known_not_affected": "76",
      "source": "Red Hat CSAF VEX",
      "status": "final",
      "title": "kernel: Bluetooth: btusb: mediatek: Fix kernel crash when releasing mtk iso interface",
      "url": "https://security.access.redhat.com/data/csaf/v2/vex/2025/cve-2025-68306.json",
      "version": "3"
    }
  }
}



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Forecast uses a logistic model when the trend is rising, or an exponential decay model when the trend is falling. Fitted via linearized least squares.

Sightings

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Nomenclature

  • Seen: The vulnerability was mentioned, discussed, or observed by the user.
  • Confirmed: The vulnerability has been validated from an analyst's perspective.
  • Published Proof of Concept: A public proof of concept is available for this vulnerability.
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  • Not exploited: The vulnerability was not observed as exploited by the user who reported the sighting.
  • Not confirmed: The user expressed doubt about the validity of the vulnerability.
  • Not patched: The vulnerability was not observed as successfully patched by the user who reported the sighting.


Detection rules are retrieved from Rulezet.


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