CVE-2025-40108

{
  "id": "CVE-2025-40108",
  "sourceIdentifier": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
  "published": "2025-11-09T05:15:35.580",
  "lastModified": "2026-10-19T21:10:00.160",
  "vulnStatus": "Deferred",
  "cveTags": [],
  "descriptions": [
    {
      "lang": "en",
      "value": "In the Linux kernel, the following vulnerability has been resolved:\n\nserial: qcom-geni: Fix blocked task\n\nRevert commit 1afa70632c39 (\"serial: qcom-geni: Enable PM runtime for\nserial driver\") and its dependent commit 86fa39dd6fb7 (\"serial:\nqcom-geni: Enable Serial on SA8255p Qualcomm platforms\") because the\nfirst one causes regression - hang task on Qualcomm RB1 board (QRB2210)\nand unable to use serial at all during normal boot:\n\n  INFO: task kworker/u16:0:12 blocked for more than 42 seconds.\n        Not tainted 6.17.0-rc1-00004-g53e760d89498 #9\n  \"echo 0 > /proc/sys/kernel/hung_task_timeout_secs\" disables this message.\n  task:kworker/u16:0   state:D stack:0     pid:12    tgid:12    ppid:2      task_flags:0x4208060 flags:0x00000010\n  Workqueue: async async_run_entry_fn\n  Call trace:\n   __switch_to+0xe8/0x1a0 (T)\n   __schedule+0x290/0x7c0\n   schedule+0x34/0x118\n   rpm_resume+0x14c/0x66c\n   rpm_resume+0x2a4/0x66c\n   rpm_resume+0x2a4/0x66c\n   rpm_resume+0x2a4/0x66c\n   __pm_runtime_resume+0x50/0x9c\n   __driver_probe_device+0x58/0x120\n   driver_probe_device+0x3c/0x154\n   __driver_attach_async_helper+0x4c/0xc0\n   async_run_entry_fn+0x34/0xe0\n   process_one_work+0x148/0x290\n   worker_thread+0x2c4/0x3e0\n   kthread+0x118/0x1c0\n   ret_from_fork+0x10/0x20\n\nThe issue was reported on 12th of August and was ignored by author of\ncommits introducing issue for two weeks.  Only after complaining author\nproduced a fix which did not work, so if original commits cannot be\nreliably fixed for 5 weeks, they obviously are buggy and need to be\ndropped."
    },
    {
      "lang": "es",
      "value": "En el kernel de Linux, la siguiente vulnerabilidad ha sido resuelta:\n\nserial: qcom-geni: Corrección de tarea bloqueada\n\nSe revierte el commit 1afa70632c39 (“serial: qcom-geni: Enable PM runtime for serial driver”) y su commit dependiente 86fa39dd6fb7 (“serial: qcom-geni: Enable Serial on SA8255p Qualcomm platforms”) porque el primero causa una regresión: cuelga la tarea en la placa Qualcomm RB1 (QRB2210) e impide el uso del puerto serie durante el arranque normal:\n\n  INFO: la tarea kworker/u16:0:12 bloqueada durante más de 42 segundos.\n        No contaminado 6.17.0-rc1-00004-g53e760d89498 #9\n  “echo 0 > /proc/sys/kernel/hung_task_timeout_secs” deshabilita este mensaje.\n  tarea:kworker/u16:0   estado:D pila:0     pid:12    tgid:12    ppid:2      task_flags:0x4208060 flags:0x00000010\n  Cola de trabajo: async async_run_entry_fn\n  Rastreo de llamadas:\n   __switch_to+0xe8/0x1a0 (T)\n   __schedule+0x290/0x7c0\n   schedule+0x34/0x118\n   rpm_resume+0x14c/0x66c\n   rpm_resume+0x2a4/0x66c\n   rpm_resume+0x2a4/0x66c\n   rpm_resume+0x2a4/0x66c\n   __pm_runtime_resume+0x50/0x9c\n   __driver_probe_device+0x58/0x120\n   driver_probe_device+0x3c/0x154\n   __driver_attach_async_helper+0x4c/0xc0\n   async_run_entry_fn+0x34/0xe0\n   process_one_work+0x148/0x290\n   worker_thread+0x2c4/0x3e0\n   kthread+0x118/0x1c0\n   ret_from_fork+0x10/0x20\n\nEl problema fue reportado el 12 de agosto y fue ignorado por el autor de los commits que introdujeron el problema durante dos semanas. Solo después de quejarse, el autor produjo una corrección que no funcionó, así que si los commits originales no pueden ser corregidos de manera fiable durante 5 semanas, obviamente son defectuosos y deben ser eliminados."
    }
  ],
  "affected": [
    {
      "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
      "affectedData": [
        {
          "vendor": "Linux",
          "product": "Linux",
          "defaultStatus": "unaffected",
          "programFiles": [
            "drivers/tty/serial/qcom_geni_serial.c"
          ],
          "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
          "versions": [
            {
              "version": "1afa70632c390488308d8e94e037df6895a3e1ac",
              "lessThan": "1e810d81769e16637bcd845ba37fbc1eba5d4bd2",
              "versionType": "git",
              "status": "affected"
            },
            {
              "version": "1afa70632c390488308d8e94e037df6895a3e1ac",
              "lessThan": "a699213d4e6ef4286348c6439837990f121e0c03",
              "versionType": "git",
              "status": "affected"
            }
          ]
        },
        {
          "vendor": "Linux",
          "product": "Linux",
          "defaultStatus": "affected",
          "programFiles": [
            "drivers/tty/serial/qcom_geni_serial.c"
          ],
          "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
          "versions": [
            {
              "version": "6.17",
              "status": "affected"
            },
            {
              "version": "0",
              "lessThan": "6.17",
              "versionType": "semver",
              "status": "unaffected"
            },
            {
              "version": "6.17.2",
              "lessThanOrEqual": "6.17.*",
              "versionType": "semver",
              "status": "unaffected"
            },
            {
              "version": "6.18",
              "lessThanOrEqual": "*",
              "versionType": "original_commit_for_fix",
              "status": "unaffected"
            }
          ]
        }
      ]
    }
  ],
  "metrics": {},
  "references": [
    {
      "url": "https://git.kernel.org/stable/c/1e810d81769e16637bcd845ba37fbc1eba5d4bd2",
      "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67"
    },
    {
      "url": "https://git.kernel.org/stable/c/a699213d4e6ef4286348c6439837990f121e0c03",
      "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67"
    }
  ]
}