{
  "affected": [
    {
      "ecosystem_specific": {
        "urgency": "not yet assigned"
      },
      "package": {
        "ecosystem": "Debian:14",
        "name": "linux"
      },
      "ranges": [
        {
          "events": [
            {
              "introduced": "0"
            },
            {
              "fixed": "7.0.12-1"
            }
          ],
          "type": "ECOSYSTEM"
        }
      ]
    }
  ],
  "details": "In the Linux kernel, the following vulnerability has been resolved:  idpf: fix read_dev_clk_lock spinlock init in idpf_ptp_init()  In idpf_ptp_init(), read_dev_clk_lock is initialized after ptp_schedule_worker() had already been called (and after idpf_ptp_settime64() could reach the lock). The PTP aux worker fires immediately upon scheduling and can call into idpf_ptp_read_src_clk_reg_direct(), which takes spin_lock(\u0026ptp-\u003eread_dev_clk_lock) on an uninitialized lock, triggering the lockdep \"non-static key\" warning:  [12973.796587] idpf 0000:83:00.0: Device HW Reset initiated [12974.094507] INFO: trying to register non-static key. ... [12974.097208] Call Trace: [12974.097213]  \u003cTASK\u003e [12974.097218]  dump_stack_lvl+0x93/0xe0 [12974.097234]  register_lock_class+0x4c4/0x4e0 [12974.097249]  ? __lock_acquire+0x427/0x2290 [12974.097259]  __lock_acquire+0x98/0x2290 [12974.097272]  lock_acquire+0xc6/0x310 [12974.097281]  ? idpf_ptp_read_src_clk_reg+0xb7/0x150 [idpf] [12974.097311]  ? lockdep_hardirqs_on_prepare+0xde/0x190 [12974.097318]  ? finish_task_switch.isra.0+0xd2/0x350 [12974.097330]  ? __pfx_ptp_aux_kworker+0x10/0x10 [ptp] [12974.097343]  _raw_spin_lock+0x30/0x40 [12974.097353]  ? idpf_ptp_read_src_clk_reg+0xb7/0x150 [idpf] [12974.097373]  idpf_ptp_read_src_clk_reg+0xb7/0x150 [idpf] [12974.097391]  ? kthread_worker_fn+0x88/0x3d0 [12974.097404]  ? kthread_worker_fn+0x4e/0x3d0 [12974.097411]  idpf_ptp_update_cached_phctime+0x26/0x120 [idpf] [12974.097428]  ? _raw_spin_unlock_irq+0x28/0x50 [12974.097436]  idpf_ptp_do_aux_work+0x15/0x20 [idpf] [12974.097454]  ptp_aux_kworker+0x20/0x40 [ptp] [12974.097464]  kthread_worker_fn+0xd5/0x3d0 [12974.097474]  ? __pfx_kthread_worker_fn+0x10/0x10 [12974.097482]  kthread+0xf4/0x130 [12974.097489]  ? __pfx_kthread+0x10/0x10 [12974.097498]  ret_from_fork+0x32c/0x410 [12974.097512]  ? __pfx_kthread+0x10/0x10 [12974.097519]  ret_from_fork_asm+0x1a/0x30 [12974.097540]  \u003c/TASK\u003e  Move the call to spin_lock_init() up a bit to make sure read_dev_clk_lock is not touched before it's been initialized.",
  "id": "DEBIAN-CVE-2026-64162",
  "modified": "2026-09-14T16:47:32.620553046Z",
  "published": "2026-07-19T16:17:58.213Z",
  "references": [
    {
      "type": "ADVISORY",
      "url": "https://security-tracker.debian.org/tracker/CVE-2026-64162"
    }
  ],
  "severity": [
    {
      "score": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H",
      "type": "CVSS_V3"
    }
  ],
  "upstream": [
    "CVE-2026-64162"
  ]
}