{
  "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-2025-38397",
    "sourceURL": "https://www.cve.org/CVERecord?id=CVE-2025-38397",
    "idYear": 2025,
    "status": "PUBLISHED",
    "publishedAt": "2025-07-25T12:53:41.566Z",
    "updatedAt": "2026-05-11T21:27:11.550Z",
    "importedAt": "2026-10-24T01:57:34.152Z",
    "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": "nvme-multipath: fix suspicious RCU usage warning",
      "summary": "In the Linux kernel, the following vulnerability has been resolved:\n\nnvme-multipath: fix suspicious RCU usage warning\n\nWhen I run the NVME over TCP test in virtme-ng, I get the following\n\"suspicious RCU usage\" warning in nvme_mpath_add_sysfs_link():\n\n'''\n[    5.024557][   T44] nvmet: Created nvm controller 1 for subsystem nqn.2025-06.org.nvmexpress.mptcp for NQN nqn.2014-08.org.nvmexpress:uuid:f7f6b5e0-ff97-4894-98ac-c85309e0bc77.\n[    5.027401][  T183] nvme nvme0: creating 2 I/O queues.\n[    5.029017][  T183] nvme nvme0: mapped 2/0/0 default/read/poll queues.\n[    5.032587][  T183] nvme nvme0: new ctrl: NQN \"nqn.2025-06.org.nvmexpress.mptcp\", addr 127.0.0.1:4420, hostnqn: nqn.2014-08.org.nvmexpress:uuid:f7f6b5e0-ff97-4894-98ac-c85309e0bc77\n[    5.042214][   T25]\n[    5.042440][   T25] =============================\n[    5.042579][   T25] WARNING: suspicious RCU usage\n[    5.042705][   T25] 6.16.0-rc3+ #23 Not tainted\n[    5.042812][   T25] -----------------------------\n[    5.042934][   T25] drivers/nvme/host/multipath.c:1203 RCU-list traversed in non-reader section!!\n[    5.043111][   T25]\n[    5.043111][   T25] other info that might help us debug this:\n[    5.043111][   T25]\n[    5.043341][   T25]\n[    5.043341][   T25] rcu_scheduler_active = 2, debug_locks = 1\n[    5.043502][   T25] 3 locks held by kworker/u9:0/25:\n[    5.043615][   T25]  #0: ffff888008730948 ((wq_completion)async){+.+.}-{0:0}, at: process_one_work+0x7ed/0x1350\n[    5.043830][   T25]  #1: ffffc900001afd40 ((work_completion)(&entry->work)){+.+.}-{0:0}, at: process_one_work+0xcf3/0x1350\n[    5.044084][   T25]  #2: ffff888013ee0020 (&head->srcu){.+.+}-{0:0}, at: nvme_mpath_add_sysfs_link.part.0+0xb4/0x3a0\n[    5.044300][   T25]\n[    5.044300][   T25] stack backtrace:\n[    5.044439][   T25] CPU: 0 UID: 0 PID: 25 Comm: kworker/u9:0 Not tainted 6.16.0-rc3+ #23 PREEMPT(full)\n[    5.044441][   T25] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011\n[    5.044442][   T25] Workqueue: async async_run_entry_fn\n[    5.044445][   T25] Call Trace:\n[    5.044446][   T25]  <TASK>\n[    5.044449][   T25]  dump_stack_lvl+0x6f/0xb0\n[    5.044453][   T25]  lockdep_rcu_suspicious.cold+0x4f/0xb1\n[    5.044457][   T25]  nvme_mpath_add_sysfs_link.part.0+0x2fb/0x3a0\n[    5.044459][   T25]  ? queue_work_on+0x90/0xf0\n[    5.044461][   T25]  ? lockdep_hardirqs_on+0x78/0x110\n[    5.044466][   T25]  nvme_mpath_set_live+0x1e9/0x4f0\n[    5.044470][   T25]  nvme_mpath_add_disk+0x240/0x2f0\n[    5.044472][   T25]  ? __pfx_nvme_mpath_add_disk+0x10/0x10\n[    5.044475][   T25]  ? add_disk_fwnode+0x361/0x580\n[    5.044480][   T25]  nvme_alloc_ns+0x81c/0x17c0\n[    5.044483][   T25]  ? kasan_quarantine_put+0x104/0x240\n[    5.044487][   T25]  ? __pfx_nvme_alloc_ns+0x10/0x10\n[    5.044495][   T25]  ? __pfx_nvme_find_get_ns+0x10/0x10\n[    5.044496][   T25]  ? rcu_read_lock_any_held+0x45/0xa0\n[    5.044498][   T25]  ? validate_chain+0x232/0x4f0\n[    5.044503][   T25]  nvme_scan_ns+0x4c8/0x810\n[    5.044506][   T25]  ? __pfx_nvme_scan_ns+0x10/0x10\n[    5.044508][   T25]  ? find_held_lock+0x2b/0x80\n[    5.044512][   T25]  ? ktime_get+0x16d/0x220\n[    5.044517][   T25]  ? kvm_clock_get_cycles+0x18/0x30\n[    5.044520][   T25]  ? __pfx_nvme_scan_ns_async+0x10/0x10\n[    5.044522][   T25]  async_run_entry_fn+0x97/0x560\n[    5.044523][   T25]  ? rcu_is_watching+0x12/0xc0\n[    5.044526][   T25]  process_one_work+0xd3c/0x1350\n[    5.044532][   T25]  ? __pfx_process_one_work+0x10/0x10\n[    5.044536][   T25]  ? assign_work+0x16c/0x240\n[    5.044539][   T25]  worker_thread+0x4da/0xd50\n[    5.044545][   T25]  ? __pfx_worker_thread+0x10/0x10\n[    5.044546][   T25]  kthread+0x356/0x5c0\n[    5.044548][   T25]  ? __pfx_kthread+0x10/0x10\n[    5.044549][   T25]  ? ret_from_fork+0x1b/0x2e0\n[    5.044552][   T25]  ? __lock_release.isra.0+0x5d/0x180\n[    5.044553][   T25]  ? ret_from_fork+0x1b/0x2e0\n[    5.044555][   T25]  ? rcu_is_watching+0x12/0xc0\n[    5.044557][   T25]  ? __pfx_kthread+0x10/0x10\n[    5.04\n---truncated---",
      "affected": [
        {
          "vendor": "Linux",
          "product": "Linux",
          "defaultStatus": "unaffected",
          "versions": [
            {
              "version": "4dbd2b2ebe4cc5f101881e2c091a70ccd38db7ee",
              "status": "affected",
              "versionType": "git",
              "lessThan": "a432383e6cd86d9fda00a6073ed35c1067a836d6"
            },
            {
              "version": "4dbd2b2ebe4cc5f101881e2c091a70ccd38db7ee",
              "status": "affected",
              "versionType": "git",
              "lessThan": "d6811074203b13f715ce2480ac64c5b1c773f2a5"
            }
          ]
        },
        {
          "vendor": "Linux",
          "product": "Linux",
          "defaultStatus": "affected",
          "versions": [
            {
              "version": "6.15",
              "status": "affected"
            },
            {
              "version": "0",
              "status": "unaffected",
              "versionType": "semver",
              "lessThan": "6.15"
            },
            {
              "version": "6.15.6",
              "status": "unaffected",
              "versionType": "semver",
              "lessThanOrEqual": "6.15.*"
            },
            {
              "version": "6.16",
              "status": "unaffected",
              "versionType": "original_commit_for_fix",
              "lessThanOrEqual": "*"
            }
          ]
        }
      ]
    }
  }
}