{
  "schema_version": "1.6.1",
  "id": "RPI-CVE-2025-68306",
  "modified": "2026-10-07T17:22:01Z",
  "upstream": [
    "CVE-2025-68306"
  ],
  "published": "2025-12-16T15:06:57Z",
  "summary": "Bluetooth: btusb: mediatek: Fix kernel crash when releasing mtk iso interface",
  "details": "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<4>[   29.158070] Hardware name: Google Quigon sku196612/196613 board (DT)\n<4>[   29.158076] Workqueue: hci0 hci_cmd_sync_work [bluetooth]\n<4>[   29.158154] pstate: 20400009 (nzCv daif +PAN -UAO -TCO -DIT -SSBS BTYPE=--)\n<4>[   29.158162] pc : klist_remove+0x90/0x158\n<4>[   29.158174] lr : klist_remove+0x88/0x158\n<4>[   29.158180] sp : ffffffc0846b3c00\n<4>[   29.158185] pmr_save: 000000e0\n<4>[   29.158188] x29: ffffffc0846b3c30 x28: ffffff80cd31f880 x27: ffffff80c1bdc058\n<4>[   29.158199] x26: dead000000000100 x25: ffffffdbdc624ea3 x24: ffffff80c1bdc4c0\n<4>[   29.158209] x23: ffffffdbdc62a3e6 x22: ffffff80c6c07000 x21: ffffffdbdc829290\n<4>[   29.158219] x20: 0000000000000000 x19: ffffff80cd3e0648 x18: 000000031ec97781\n<4>[   29.158229] x17: ffffff80c1bdc4a8 x16: ffffffdc10576548 x15: ffffff80c1180428\n<4>[   29.158238] x14: 0000000000000000 x13: 000000000000e380 x12: 0000000000000018\n<4>[   29.158248] x11: ffffff80c2a7fd10 x10: 0000000000000000 x9 : 0000000100000000\n<4>[   29.158257] x8 : 0000000000000000 x7 : 7f7f7f7f7f7f7f7f x6 : 2d7223ff6364626d\n<4>[   29.158266] x5 : 0000008000000000 x4 : 0000000000000020 x3 : 2e7325006465636e\n<4>[   29.158275] x2 : ffffffdc11afeff8 x1 : 0000000000000000 x0 : ffffffdc11be4d0c\n<4>[   29.158285] Call trace:\n<4>[   29.158290]  klist_remove+0x90/0x158\n<4>[   29.158298]  device_release_driver_internal+0x20c/0x268\n<4>[   29.158308]  device_release_driver+0x1c/0x30\n<4>[   29.158316]  usb_driver_release_interface+0x70/0x88\n<4>[   29.158325]  btusb_mtk_release_iso_intf+0x68/0xd8 [btusb (HASH:e8b6 5)]\n<4>[   29.158347]  btusb_mtk_reset+0x5c/0x480 [btusb (HASH:e8b6 5)]\n<4>[   29.158361]  hci_cmd_sync_work+0x10c/0x188 [bluetooth (HASH:a4fa 6)]\n<4>[   29.158430]  process_scheduled_works+0x258/0x4e8\n<4>[   29.158441]  worker_thread+0x300/0x428\n<4>[   29.158448]  kthread+0x108/0x1d0\n<4>[   29.158455]  ret_from_fork+0x10/0x20\n<0>[   29.158467] Code: 91343000 940139d1 f9400268 927ff914 (f9401297)\n<4>[   29.158474] ---[ end trace 0000000000000000 ]---\n<0>[   29.167129] Kernel panic - not syncing: Oops: Fatal exception\n<2>[   29.167144] SMP: stopping secondary CPUs\n<4>[   29.167158] ------------[ cut here ]------------",
  "affected": [
    {
      "package": {
        "ecosystem": "Raspberry Pi OS:12",
        "name": "linux"
      },
      "versions": [
        "1:6.12.20-1+rpt1~bpo12+1",
        "1:6.12.25-1+rpt1",
        "1:6.12.34-1+rpt1~bookworm",
        "1:6.12.47-1+rpt1~bookworm"
      ],
      "ecosystem_specific": {
        "binaries": [
          {
            "binary_name": "linux-image-6.12.20+rpt-rpi-2712",
            "binary_version": "1:6.12.20-1+rpt1~bpo12+1"
          },
          {
            "binary_name": "linux-image-6.12.20+rpt-rpi-v6",
            "binary_version": "1:6.12.20-1+rpt1~bpo12+1"
          },
          {
            "binary_name": "linux-image-6.12.20+rpt-rpi-v7",
            "binary_version": "1:6.12.20-1+rpt1~bpo12+1"
          },
          {
            "binary_name": "linux-image-6.12.20+rpt-rpi-v7l",
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          },
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            "binary_name": "linux-image-6.12.20+rpt-rpi-v8",
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          },
          {
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          },
          {
            "binary_name": "linux-image-6.12.25+rpt-rpi-v6",
            "binary_version": "1:6.12.25-1+rpt1"
          },
          {
            "binary_name": "linux-image-6.12.25+rpt-rpi-v7",
            "binary_version": "1:6.12.25-1+rpt1"
          },
          {
            "binary_name": "linux-image-6.12.25+rpt-rpi-v7l",
            "binary_version": "1:6.12.25-1+rpt1"
          },
          {
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          },
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            "binary_version": "1:6.12.34-1+rpt1~bookworm"
          },
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            "binary_version": "1:6.12.34-1+rpt1~bookworm"
          },
          {
            "binary_name": "linux-image-6.12.34+rpt-rpi-v7",
            "binary_version": "1:6.12.34-1+rpt1~bookworm"
          },
          {
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          },
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            "binary_name": "linux-image-6.12.34+rpt-rpi-v8",
            "binary_version": "1:6.12.34-1+rpt1~bookworm"
          },
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          },
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            "binary_name": "linux-image-6.12.47+rpt-rpi-2712",
            "binary_version": "1:6.12.47-1+rpt1~bookworm"
          },
          {
            "binary_name": "linux-image-6.12.47+rpt-rpi-v6",
            "binary_version": "1:6.12.47-1+rpt1~bookworm"
          },
          {
            "binary_name": "linux-image-6.12.47+rpt-rpi-v7",
            "binary_version": "1:6.12.47-1+rpt1~bookworm"
          },
          {
            "binary_name": "linux-image-6.12.47+rpt-rpi-v7l",
            "binary_version": "1:6.12.47-1+rpt1~bookworm"
          },
          {
            "binary_name": "linux-image-6.12.47+rpt-rpi-v8",
            "binary_version": "1:6.12.47-1+rpt1~bookworm"
          },
          {
            "binary_name": "linux-image-6.12.47+rpt-rpi-v8-rt",
            "binary_version": "1:6.12.47-1+rpt1~bookworm"
          }
        ]
      },
      "database_specific": {
        "per_version": {
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            "linux_commit": "cd231d4775b14f228606c09f219b48308f6ab3aa",
            "upstream_version": "6.12.20",
            "assessment": "commit ancestry (strak rule)",
            "upstream_fixed": "6.12.61"
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          "1:6.12.25-1+rpt1": {
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            "assessment": "commit ancestry (strak rule)",
            "upstream_fixed": "6.12.61"
          },
          "1:6.12.34-1+rpt1~bookworm": {
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            "assessment": "commit ancestry (strak rule)",
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            "assessment": "commit ancestry (strak rule)",
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          }
        }
      }
    },
    {
      "package": {
        "ecosystem": "Raspberry Pi OS:13",
        "name": "linux"
      },
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        "1:6.12.19-1+rpt1~bpo12+1",
        "1:6.12.19-1+rpt1",
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        "1:6.12.25-1+rpt1+trixie",
        "1:6.12.34-1+rpt1",
        "1:6.12.47-1+rpt1"
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      "ecosystem_specific": {
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          },
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            "binary_version": "1:6.12.19-1+rpt1~bpo12+1"
          },
          {
            "binary_name": "linux-image-6.12.19+rpt-rpi-v7",
            "binary_version": "1:6.12.19-1+rpt1~bpo12+1"
          },
          {
            "binary_name": "linux-image-6.12.19+rpt-rpi-v7l",
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          },
          {
            "binary_name": "linux-image-6.12.19+rpt-rpi-v8",
            "binary_version": "1:6.12.19-1+rpt1~bpo12+1"
          },
          {
            "binary_name": "linux-image-6.12.19+rpt-rpi-2712",
            "binary_version": "1:6.12.19-1+rpt1"
          },
          {
            "binary_name": "linux-image-6.12.19+rpt-rpi-v6",
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          },
          {
            "binary_name": "linux-image-6.12.19+rpt-rpi-v7",
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          },
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            "binary_name": "linux-image-6.12.19+rpt-rpi-v7l",
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            "binary_name": "linux-image-6.12.20+rpt-rpi-v6",
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          },
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            "binary_name": "linux-image-6.12.20+rpt-rpi-v7l",
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          },
          {
            "binary_name": "linux-image-6.12.20+rpt-rpi-v8",
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          },
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          },
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          },
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          },
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          },
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          }
        ]
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      "database_specific": {
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            "upstream_version": "6.12.19",
            "assessment": "commit ancestry (strak rule)",
            "upstream_fixed": "6.12.61"
          },
          "1:6.12.19-1+rpt1": {
            "linux_commit": "121c2c384b9c2f4790ffb31b2cd25c7d75c8fda0",
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            "assessment": "commit ancestry (strak rule)",
            "upstream_fixed": "6.12.61"
          },
          "1:6.12.20-1+rpt1": {
            "linux_commit": "cd231d4775b14f228606c09f219b48308f6ab3aa",
            "upstream_version": "6.12.20",
            "assessment": "commit ancestry (strak rule)",
            "upstream_fixed": "6.12.61"
          },
          "1:6.12.25-1+rpt1+trixie": {
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            "assessment": "commit ancestry (strak rule)",
            "upstream_fixed": "6.12.61"
          },
          "1:6.12.34-1+rpt1": {
            "linux_commit": "8f77e03530f65209a377d25023e912b288e039cd",
            "upstream_version": "6.12.34",
            "assessment": "commit ancestry (strak rule)",
            "upstream_fixed": "6.12.61"
          },
          "1:6.12.47-1+rpt1": {
            "linux_commit": "359f37f0faefb712add32a39f98751aea67d5c1f",
            "upstream_version": "6.12.47",
            "assessment": "commit ancestry (strak rule)",
            "upstream_fixed": "6.12.61"
          }
        }
      }
    }
  ],
  "references": [
    {
      "type": "ADVISORY",
      "url": "https://www.cve.org/CVERecord?id=CVE-2025-68306"
    },
    {
      "type": "FIX",
      "url": "https://git.kernel.org/stable/c/421e88a0d85782786b7a1764c75518b4845e07b3"
    },
    {
      "type": "FIX",
      "url": "https://git.kernel.org/stable/c/faae9f2ea8806f2499186448adbf94689b47b82b"
    },
    {
      "type": "FIX",
      "url": "https://git.kernel.org/stable/c/4015b979767125cf8a2233a145a3b3af78bfd8fb"
    }
  ],
  "database_specific": {
    "source": "https://git.kernel.org/pub/scm/linux/security/vulns.git",
    "upstream_modified": "2026-05-12T04:54:46Z"
  }
}