{
  "affected": [
    {
      "ecosystem_specific": {
        "urgency": "not yet assigned"
      },
      "package": {
        "ecosystem": "Debian:13",
        "name": "linux"
      },
      "ranges": [
        {
          "events": [
            {
              "introduced": "0"
            }
          ],
          "type": "ECOSYSTEM"
        }
      ]
    },
    {
      "ecosystem_specific": {
        "urgency": "not yet assigned"
      },
      "package": {
        "ecosystem": "Debian:14",
        "name": "linux"
      },
      "ranges": [
        {
          "events": [
            {
              "introduced": "0"
            },
            {
              "fixed": "6.18.3-1"
            }
          ],
          "type": "ECOSYSTEM"
        }
      ]
    }
  ],
  "details": "In the Linux kernel, the following vulnerability has been resolved:  block: Remove queue freezing from several sysfs store callbacks  Freezing the request queue from inside sysfs store callbacks may cause a deadlock in combination with the dm-multipath driver and the queue_if_no_path option. Additionally, freezing the request queue slows down system boot on systems where sysfs attributes are set synchronously.  Fix this by removing the blk_mq_freeze_queue() / blk_mq_unfreeze_queue() calls from the store callbacks that do not strictly need these callbacks. Add the __data_racy annotation to request_queue.rq_timeout to suppress KCSAN data race reports about the rq_timeout reads.  This patch may cause a small delay in applying the new settings.  For all the attributes affected by this patch, I/O will complete correctly whether the old or the new value of the attribute is used.  This patch affects the following sysfs attributes: * io_poll_delay * io_timeout * nomerges * read_ahead_kb * rq_affinity  Here is an example of a deadlock triggered by running test srp/002 if this patch is not applied:  task:multipathd Call Trace:  \u003cTASK\u003e  __schedule+0x8c1/0x1bf0  schedule+0xdd/0x270  schedule_preempt_disabled+0x1c/0x30  __mutex_lock+0xb89/0x1650  mutex_lock_nested+0x1f/0x30  dm_table_set_restrictions+0x823/0xdf0  __bind+0x166/0x590  dm_swap_table+0x2a7/0x490  do_resume+0x1b1/0x610  dev_suspend+0x55/0x1a0  ctl_ioctl+0x3a5/0x7e0  dm_ctl_ioctl+0x12/0x20  __x64_sys_ioctl+0x127/0x1a0  x64_sys_call+0xe2b/0x17d0  do_syscall_64+0x96/0x3a0  entry_SYSCALL_64_after_hwframe+0x4b/0x53  \u003c/TASK\u003e task:(udev-worker) Call Trace:  \u003cTASK\u003e  __schedule+0x8c1/0x1bf0  schedule+0xdd/0x270  blk_mq_freeze_queue_wait+0xf2/0x140  blk_mq_freeze_queue_nomemsave+0x23/0x30  queue_ra_store+0x14e/0x290  queue_attr_store+0x23e/0x2c0  sysfs_kf_write+0xde/0x140  kernfs_fop_write_iter+0x3b2/0x630  vfs_write+0x4fd/0x1390  ksys_write+0xfd/0x230  __x64_sys_write+0x76/0xc0  x64_sys_call+0x276/0x17d0  do_syscall_64+0x96/0x3a0  entry_SYSCALL_64_after_hwframe+0x4b/0x53  \u003c/TASK\u003e",
  "id": "DEBIAN-CVE-2025-71117",
  "modified": "2026-09-01T19:48:51.443547564Z",
  "published": "2026-01-14T15:16:01.383Z",
  "references": [
    {
      "type": "ADVISORY",
      "url": "https://security-tracker.debian.org/tracker/CVE-2025-71117"
    }
  ],
  "severity": [
    {
      "score": "CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H",
      "type": "CVSS_V3"
    }
  ],
  "upstream": [
    "CVE-2025-71117"
  ]
}