{
  "affected": [
    {
      "ecosystem_specific": {
        "urgency": "not yet assigned"
      },
      "package": {
        "ecosystem": "Debian:12",
        "name": "linux"
      },
      "ranges": [
        {
          "events": [
            {
              "introduced": "0"
            },
            {
              "fixed": "6.1.187-1"
            }
          ],
          "type": "ECOSYSTEM"
        }
      ]
    },
    {
      "ecosystem_specific": {
        "urgency": "not yet assigned"
      },
      "package": {
        "ecosystem": "Debian:13",
        "name": "linux"
      },
      "ranges": [
        {
          "events": [
            {
              "introduced": "0"
            },
            {
              "fixed": "6.12.105-1"
            }
          ],
          "type": "ECOSYSTEM"
        }
      ]
    },
    {
      "ecosystem_specific": {
        "urgency": "not yet assigned"
      },
      "package": {
        "ecosystem": "Debian:14",
        "name": "linux"
      },
      "ranges": [
        {
          "events": [
            {
              "introduced": "0"
            },
            {
              "fixed": "7.1.8-1"
            }
          ],
          "type": "ECOSYSTEM"
        }
      ]
    },
    {
      "ecosystem_specific": {
        "urgency": "not yet assigned"
      },
      "package": {
        "ecosystem": "Debian:12",
        "name": "linux-6.12"
      },
      "ranges": [
        {
          "events": [
            {
              "introduced": "0"
            },
            {
              "fixed": "6.12.107-1~deb12u1"
            }
          ],
          "type": "ECOSYSTEM"
        }
      ]
    }
  ],
  "details": "In the Linux kernel, the following vulnerability has been resolved:  usb: typec: ucsi: Fix race condition and ordering in port unregistration  A synchronization issue exists during port unregistration where pending partner work items can race against workqueue destruction, leading to use-after-free conditions:    cros_ec_ucsi cros_ec_ucsi.3.auto: error -ETIMEDOUT: PPM init failed   BUG: kernel NULL pointer dereference, address: 0000000000000000   RIP: 0010:__queue_work+0x83/0x4a0   Call Trace:     \u003cIRQ\u003e     __cfi_delayed_work_timer_fn+0x10/0x10     run_timer_softirq+0x3b6/0xbd0     sched_clock_cpu+0xc/0x110     irq_exit_rcu+0x18d/0x330     fred_sysvec_apic_timer_interrupt+0x5e/0x80  Fix this by ensuring strict ordering and proper serialization during teardown:  1. Move ucsi_unregister_partner() to the beginning of the teardown sequence and protect it under the connector mutex lock. 2. Ensure all pending partner tasks are explicitly flushed and finished before the workqueue is destroyed. 3. Switch from mod_delayed_work() to a cancel_delayed_work() and queue_delayed_work() sequence. This guarantees that items currently marked as pending won't be scheduled an additional time, preventing a double release of resources which leads to the following crash:    Oops: general protection fault, probably for non-canonical address     0xdead000000000122: 0000 [#1] SMP NOPTI   Workqueue: cros_ec_ucsi.3.auto-con2 ucsi_poll_worker   RIP: 0010:ucsi_poll_worker+0x65/0x1e0   Call Trace:   \u003cTASK\u003e     process_scheduled_works+0x218/0x6d0     worker_thread+0x188/0x3f0     __cfi_worker_thread+0x10/0x10     kthread+0x226/0x2a0  To ensure these rules are applied identically across both the normal teardown and the ucsi_init() error paths, consolidate the cleanup logic into a new helper, ucsi_unregister_port().",
  "id": "DEBIAN-CVE-2026-74441",
  "modified": "2026-09-19T21:47:26.263535410Z",
  "published": "2026-08-15T13:17:48.643Z",
  "references": [
    {
      "type": "ADVISORY",
      "url": "https://security-tracker.debian.org/tracker/CVE-2026-74441"
    }
  ],
  "upstream": [
    "CVE-2026-74441"
  ]
}