{
  "schemaVersion": 1,
  "attribution": [
    {
      "source": "CISA Known Exploited Vulnerabilities",
      "url": "https://www.cisa.gov/known-exploited-vulnerabilities-catalog",
      "licence": "US government work"
    },
    {
      "source": "GitHub Advisory Database",
      "url": "https://github.com/advisories",
      "licence": "CC BY 4.0"
    },
    {
      "source": "Have I Been Pwned",
      "url": "https://haveibeenpwned.com/",
      "licence": "CC BY 4.0"
    },
    {
      "source": "CVE Program (CVE records)",
      "url": "https://www.cve.org/Legal/TermsOfUse",
      "licence": "CVE Terms of Use",
      "notice": "Copyright © 1999-2026, The MITRE Corporation. CVE is a trademark and the CVE logo is a registered trademark of The MITRE Corporation.",
      "terms": "CVE Usage: MITRE hereby grants you a perpetual, worldwide, non-exclusive, no-charge, royalty-free, irrevocable copyright license to reproduce, prepare derivative works of, publicly display, publicly perform, sublicense, and distribute Common Vulnerabilities and Exposures (CVE™). Any copy you make for such purposes is authorized provided that you reproduce MITRE's copyright designation and this license in any such copy."
    },
    {
      "source": "FIRST EPSS",
      "url": "https://www.first.org/epss/",
      "licence": "free to use; FIRST requests attribution"
    }
  ],
  "record": {
    "id": "CVE-2025-71117",
    "sourceURL": "https://www.cve.org/CVERecord?id=CVE-2025-71117",
    "idYear": 2025,
    "status": "PUBLISHED",
    "publishedAt": "2026-01-14T15:06:05.161Z",
    "updatedAt": "2026-05-11T21:55:11.731Z",
    "importedAt": "2026-10-24T01:57:44.935Z",
    "snapshot": {
      "id": "cve_2026-10-24_midnight_baseline",
      "at": "2026-10-24T00:00:00.000Z",
      "source": "https://github.com/CVEProject/cvelistV5/releases/tag/cve_2026-10-24_0100Z"
    },
    "facts": {
      "title": "block: Remove queue freezing from several sysfs store callbacks",
      "summary": "In the Linux kernel, the following vulnerability has been resolved:\n\nblock: Remove queue freezing from several sysfs store callbacks\n\nFreezing the request queue from inside sysfs store callbacks may cause a\ndeadlock in combination with the dm-multipath driver and the\nqueue_if_no_path option. Additionally, freezing the request queue slows\ndown system boot on systems where sysfs attributes are set synchronously.\n\nFix this by removing the blk_mq_freeze_queue() / blk_mq_unfreeze_queue()\ncalls from the store callbacks that do not strictly need these callbacks.\nAdd the __data_racy annotation to request_queue.rq_timeout to suppress\nKCSAN data race reports about the rq_timeout reads.\n\nThis patch may cause a small delay in applying the new settings.\n\nFor all the attributes affected by this patch, I/O will complete\ncorrectly whether the old or the new value of the attribute is used.\n\nThis patch affects the following sysfs attributes:\n* io_poll_delay\n* io_timeout\n* nomerges\n* read_ahead_kb\n* rq_affinity\n\nHere is an example of a deadlock triggered by running test srp/002\nif this patch is not applied:\n\ntask:multipathd\nCall Trace:\n <TASK>\n __schedule+0x8c1/0x1bf0\n schedule+0xdd/0x270\n schedule_preempt_disabled+0x1c/0x30\n __mutex_lock+0xb89/0x1650\n mutex_lock_nested+0x1f/0x30\n dm_table_set_restrictions+0x823/0xdf0\n __bind+0x166/0x590\n dm_swap_table+0x2a7/0x490\n do_resume+0x1b1/0x610\n dev_suspend+0x55/0x1a0\n ctl_ioctl+0x3a5/0x7e0\n dm_ctl_ioctl+0x12/0x20\n __x64_sys_ioctl+0x127/0x1a0\n x64_sys_call+0xe2b/0x17d0\n do_syscall_64+0x96/0x3a0\n entry_SYSCALL_64_after_hwframe+0x4b/0x53\n </TASK>\ntask:(udev-worker)\nCall Trace:\n <TASK>\n __schedule+0x8c1/0x1bf0\n schedule+0xdd/0x270\n blk_mq_freeze_queue_wait+0xf2/0x140\n blk_mq_freeze_queue_nomemsave+0x23/0x30\n queue_ra_store+0x14e/0x290\n queue_attr_store+0x23e/0x2c0\n sysfs_kf_write+0xde/0x140\n kernfs_fop_write_iter+0x3b2/0x630\n vfs_write+0x4fd/0x1390\n ksys_write+0xfd/0x230\n __x64_sys_write+0x76/0xc0\n x64_sys_call+0x276/0x17d0\n do_syscall_64+0x96/0x3a0\n entry_SYSCALL_64_after_hwframe+0x4b/0x53\n </TASK>",
      "affected": [
        {
          "vendor": "Linux",
          "product": "Linux",
          "defaultStatus": "unaffected",
          "versions": [
            {
              "version": "af2814149883e2c1851866ea2afcd8eadc040f79",
              "status": "affected",
              "versionType": "git",
              "lessThan": "3997b3147c7b68b0308378fa95a766015f8ceb1c"
            },
            {
              "version": "af2814149883e2c1851866ea2afcd8eadc040f79",
              "status": "affected",
              "versionType": "git",
              "lessThan": "935a20d1bebf6236076785fac3ff81e3931834e9"
            }
          ]
        },
        {
          "vendor": "Linux",
          "product": "Linux",
          "defaultStatus": "affected",
          "versions": [
            {
              "version": "6.11",
              "status": "affected"
            },
            {
              "version": "0",
              "status": "unaffected",
              "versionType": "semver",
              "lessThan": "6.11"
            },
            {
              "version": "6.18.3",
              "status": "unaffected",
              "versionType": "semver",
              "lessThanOrEqual": "6.18.*"
            },
            {
              "version": "6.19",
              "status": "unaffected",
              "versionType": "original_commit_for_fix",
              "lessThanOrEqual": "*"
            }
          ]
        }
      ]
    }
  }
}