{
  "affected": [
    {
      "ecosystem_specific": {
        "urgency": "not yet assigned"
      },
      "package": {
        "ecosystem": "Debian:14",
        "name": "linux"
      },
      "ranges": [
        {
          "events": [
            {
              "introduced": "0"
            },
            {
              "fixed": "7.1.6-1"
            }
          ],
          "type": "ECOSYSTEM"
        }
      ]
    }
  ],
  "details": "In the Linux kernel, the following vulnerability has been resolved:  dpll: fix NULL pointer dereference in dpll_msg_add_pin_ref_sync()  When a dpll_pin is shared across multiple dpll_device instances and those devices are being unregistered (e.g. during driver module removal), a NULL pointer dereference can occur in dpll_msg_add_pin_ref_sync().  This happens under the following conditions:  - A pin is registered with two or more dpll devices (dpll_A, dpll_B)  - The pin has ref_sync pairs with other pins  - During unregistration of dpll_A's pins, a ref_sync partner pin is    unregistered first, removing it from dpll_A-\u003epin_refs  - But since the partner pin is still registered with dpll_B, its    dpll_refs is not empty, so dpll_pin_ref_sync_pair_del() does NOT    run and the partner stays in the pin's ref_sync_pins xarray  - When the pin itself is then unregistered from dpll_A, the delete    notification calls dpll_msg_add_pin_ref_sync() which finds the    partner in ref_sync_pins, passes dpll_pin_available() (partner is    still registered with dpll_B), but dpll_pin_on_dpll_priv(dpll_A,    partner) returns NULL because partner was already removed from    dpll_A-\u003epin_refs  - The NULL priv pointer is passed to the driver's ref_sync_get    callback, which dereferences it   BUG: kernel NULL pointer dereference, address: 0000000000000034  Oops: Oops: 0000 [#1] SMP NOPTI  RIP: 0010:zl3073x_dpll_input_pin_ref_sync_get+0x73/0x80 [zl3073x]  Call Trace:   dpll_msg_add_pin_ref_sync+0xb8/0x200   dpll_cmd_pin_get_one+0x3b6/0x4b0   dpll_pin_event_send+0x72/0x140   __dpll_pin_unregister+0x5a/0x2b0   dpll_pin_unregister+0x49/0x70  Fix this by skipping ref_sync pins whose priv pointer cannot be resolved for the current dpll device.",
  "id": "DEBIAN-CVE-2026-68378",
  "modified": "2026-09-14T16:47:44.316971565Z",
  "published": "2026-08-10T13:20:30.813Z",
  "references": [
    {
      "type": "ADVISORY",
      "url": "https://security-tracker.debian.org/tracker/CVE-2026-68378"
    }
  ],
  "upstream": [
    "CVE-2026-68378"
  ]
}