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CVE-2025-40342 (GCVE-0-2025-40342)

Vulnerability from cvelistv5 – Published: 2025-12-09 04:09 – Updated: 2026-08-05 12:09
VLAI
Title
nvme-fc: use lock accessing port_state and rport state
Summary
In the Linux kernel, the following vulnerability has been resolved: nvme-fc: use lock accessing port_state and rport state nvme_fc_unregister_remote removes the remote port on a lport object at any point in time when there is no active association. This races with with the reconnect logic, because nvme_fc_create_association is not taking a lock to check the port_state and atomically increase the active count on the rport.
Severity
8.8 (High)
CVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
Assigner
References
Impacted products
Vendor Product Version CPE status
Linux Linux Affected: e399441de9115cd472b8ace6c517708273ca7997 , < de3d91af47bc015031e7721b100a29989f6498a5 (git)
Affected: e399441de9115cd472b8ace6c517708273ca7997 , < e8cde03de8674b05f2c5e0870729049eba517800 (git)
Affected: e399441de9115cd472b8ace6c517708273ca7997 , < 4253e0a4546138a2bf9cb6acf66b32fee677fc7c (git)
Affected: e399441de9115cd472b8ace6c517708273ca7997 , < 25f4bf1f7979a7871974fd36c79d69ff1cf4b446 (git)
Affected: e399441de9115cd472b8ace6c517708273ca7997 , < 9950af4303942081dc8c7a5fdc3688c17c7eb6c0 (git)
Affected: e399441de9115cd472b8ace6c517708273ca7997 , < a2f7fa75c4a2a07328fa22ccbef461db76790b55 (git)
Affected: e399441de9115cd472b8ace6c517708273ca7997 , < 891cdbb162ccdb079cd5228ae43bdeebce8597ad (git)
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Linux Linux Affected: 4.10
Unaffected: 0 , < 4.10 (semver)
Unaffected: 5.10.247 , ≤ 5.10.* (semver)
Unaffected: 5.15.197 , ≤ 5.15.* (semver)
Unaffected: 6.1.159 , ≤ 6.1.* (semver)
Unaffected: 6.6.117 , ≤ 6.6.* (semver)
Unaffected: 6.12.58 , ≤ 6.12.* (semver)
Unaffected: 6.17.8 , ≤ 6.17.* (semver)
Unaffected: 6.18 , ≤ * (original_commit_for_fix)
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{
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          "value": "In the Linux kernel, the following vulnerability has been resolved:\n\nnvme-fc: use lock accessing port_state and rport state\n\nnvme_fc_unregister_remote removes the remote port on a lport object at\nany point in time when there is no active association. This races with\nwith the reconnect logic, because nvme_fc_create_association is not\ntaking a lock to check the port_state and atomically increase the\nactive count on the rport."
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    "dateReserved": "2025-04-16T07:20:57.187Z",
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    "redhat_vex": {
      "aggregate_severity": "Moderate",
      "current_release_date": "2026-07-30T08:43:20+00:00",
      "cve": "CVE-2025-40342",
      "id": "CVE-2025-40342",
      "initial_release_date": "2025-12-09T00:00:00+00:00",
      "product_status:known_affected": "260",
      "product_status:known_not_affected": "14",
      "source": "Red Hat CSAF VEX",
      "status": "final",
      "title": "kernel: nvme-fc: use lock accessing port_state and rport state",
      "url": "https://security.access.redhat.com/data/csaf/v2/vex/2025/cve-2025-40342.json",
      "version": "3"
    },
    "suse_vex": {
      "aggregate_severity": "moderate",
      "current_release_date": "2026-08-29T01:14:38Z",
      "cve": "CVE-2025-40342",
      "id": "CVE-2025-40342",
      "initial_release_date": "2025-12-10T00:26:23Z",
      "product_status:first_fixed": "2",
      "product_status:known_affected": "735",
      "product_status:known_not_affected": "34",
      "product_status:recommended": "421",
      "source": "SUSE CSAF VEX",
      "status": "interim",
      "title": "SUSE CVE CVE-2025-40342",
      "url": "https://ftp.suse.com/pub/projects/security/csaf-vex/cve-2025-40342.json",
      "version": "55"
    }
  }
}



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Forecast uses a logistic model when the trend is rising, or an exponential decay model when the trend is falling. Fitted via linearized least squares.

Sightings

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Nomenclature

  • Seen: The vulnerability was mentioned, discussed, or observed by the user.
  • Confirmed: The vulnerability has been validated from an analyst's perspective.
  • Published Proof of Concept: A public proof of concept is available for this vulnerability.
  • Exploited: The vulnerability was observed as exploited by the user who reported the sighting.
  • Patched: The vulnerability was observed as successfully patched by the user who reported the sighting.
  • Not exploited: The vulnerability was not observed as exploited by the user who reported the sighting.
  • Not confirmed: The user expressed doubt about the validity of the vulnerability.
  • Not patched: The vulnerability was not observed as successfully patched by the user who reported the sighting.


Detection rules are retrieved from Rulezet.