{
  "schema_version": "1.6.1",
  "id": "RPI-CVE-2026-68195",
  "modified": "2026-10-07T17:22:01Z",
  "upstream": [
    "CVE-2026-68195"
  ],
  "published": "2026-08-10T12:08:00Z",
  "summary": "wifi: mt76: mt7615: drop TXRX_NOTIFY on non-mmio buses",
  "details": "In the Linux kernel, the following vulnerability has been resolved:\n\nwifi: mt76: mt7615: drop TXRX_NOTIFY on non-mmio buses\n\nPKT_TYPE_TXRX_NOTIFY is an mmio-only event, but mt7615_rx_check() and\nmt7615_queue_rx_skb() dispatch it to mt7615_mac_tx_free() on every bus.\nmt7615_mac_tx_free() cleans the DMA tx queues with\nmt76_queue_tx_cleanup(), which calls queue_ops->tx_cleanup(). Only the\nmmio queue ops implement that callback; on the mt7663 USB and SDIO\nbuses it is NULL, so a TXRX_NOTIFY there calls a NULL pointer in the RX\nworker. Same defect as the mt7921 and mt7925 patches in this series.\n\nDrop the event on non-mmio buses via mt76_is_mmio(), as in\ncommit 5683e1488aa9 (\"wifi: mt76: connac: do not check WED status for\nnon-mmio devices\").",
  "affected": [
    {
      "package": {
        "ecosystem": "Raspberry Pi OS:12",
        "name": "linux"
      },
      "versions": [
        "1:6.1.47-1+rpt4"
      ],
      "ecosystem_specific": {
        "binaries": [
          {
            "binary_name": "linux-image-6.1.0-rpi3-rpi-2712",
            "binary_version": "1:6.1.47-1+rpt4"
          },
          {
            "binary_name": "linux-image-6.1.0-rpi3-rpi-v6",
            "binary_version": "1:6.1.47-1+rpt4"
          },
          {
            "binary_name": "linux-image-6.1.0-rpi3-rpi-v7",
            "binary_version": "1:6.1.47-1+rpt4"
          },
          {
            "binary_name": "linux-image-6.1.0-rpi3-rpi-v7l",
            "binary_version": "1:6.1.47-1+rpt4"
          },
          {
            "binary_name": "linux-image-6.1.0-rpi3-rpi-v8",
            "binary_version": "1:6.1.47-1+rpt4"
          }
        ]
      },
      "database_specific": {
        "per_version": {
          "1:6.1.47-1+rpt4": {
            "linux_commit": "655fc658a15ae7a6f37103754adb39ba52a9a14e",
            "upstream_version": "6.1.47",
            "assessment": "commit ancestry (strak rule)",
            "upstream_fixed": "6.1.183",
            "compiled_filter": false
          }
        }
      }
    }
  ],
  "references": [
    {
      "type": "ADVISORY",
      "url": "https://www.cve.org/CVERecord?id=CVE-2026-68195"
    },
    {
      "type": "FIX",
      "url": "https://git.kernel.org/stable/c/664f8bbc61e45e062679da512bf12f8f6fb26a1b"
    },
    {
      "type": "FIX",
      "url": "https://git.kernel.org/stable/c/1a099d630b8667fa622662b85e35a0ef659fb343"
    },
    {
      "type": "FIX",
      "url": "https://git.kernel.org/stable/c/a0b3e8d8726c3830102a18946c766c94c953c7f2"
    },
    {
      "type": "FIX",
      "url": "https://git.kernel.org/stable/c/f2a72f47c5fb4ba6887e85bbe809d7e5b318d9d5"
    },
    {
      "type": "FIX",
      "url": "https://git.kernel.org/stable/c/88c98ef247a3126fea9bbbda953a18a2f36c3ea7"
    },
    {
      "type": "FIX",
      "url": "https://git.kernel.org/stable/c/ab4d213393e846baa6437497f94dda7553cbeda7"
    },
    {
      "type": "FIX",
      "url": "https://git.kernel.org/stable/c/b2ab73b8123ce6cf2bc32634bfee4928676ffa66"
    },
    {
      "type": "FIX",
      "url": "https://git.kernel.org/stable/c/39afc46c0243d10b7795e6e6cf4ae91f41732120"
    }
  ],
  "database_specific": {
    "source": "https://git.kernel.org/pub/scm/linux/security/vulns.git",
    "upstream_modified": "2026-08-19T16:47:12Z"
  }
}