CVE-2025-68745 (GCVE-0-2025-68745)

Vulnerability from cvelistv5 – Published: 2025-12-24 12:09 – Updated: 2026-10-21 12:38
VLAI
Title
scsi: qla2xxx: Clear cmds after chip reset
Summary
In the Linux kernel, the following vulnerability has been resolved: scsi: qla2xxx: Clear cmds after chip reset Commit aefed3e5548f ("scsi: qla2xxx: target: Fix offline port handling and host reset handling") caused two problems: 1. Commands sent to FW, after chip reset got stuck and never freed as FW is not going to respond to them anymore. 2. BUG_ON(cmd->sg_mapped) in qlt_free_cmd(). Commit 26f9ce53817a ("scsi: qla2xxx: Fix missed DMA unmap for aborted commands") attempted to fix this, but introduced another bug under different circumstances when two different CPUs were racing to call qlt_unmap_sg() at the same time: BUG_ON(!valid_dma_direction(dir)) in dma_unmap_sg_attrs(). So revert "scsi: qla2xxx: Fix missed DMA unmap for aborted commands" and partially revert "scsi: qla2xxx: target: Fix offline port handling and host reset handling" at __qla2x00_abort_all_cmds.
Severity
9.8 (Critical)
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
SSVC
Exploitation: none Automatable: yes Technical Impact: total
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2026-10-16 15:04 UTC
Assigner
Linux CNA under the mitre root
CNA scorecard D 53/100 over 7063 records in the last 180 days details
References
Impacted products
Vendor Product Version CPE status
Linux Linux Affected: aefed3e5548f28e5fecafda6604fcbc65484dbaa , < 0d0a1a267c1ee7c41aeffdca84afcb113787a91a (git)
Affected: aefed3e5548f28e5fecafda6604fcbc65484dbaa , < c82c0fbb97d0fd44324eb55ab758408c7c964b32 (git)
Affected: aefed3e5548f28e5fecafda6604fcbc65484dbaa , < 5c1fb3fd05da3d55b8cbc42d7d660b313cbdc936 (git)
Affected: aefed3e5548f28e5fecafda6604fcbc65484dbaa , < d46c69a087aa3d1513f7a78f871b80251ea0c1ae (git)
Affected: eb67b7a23d357f578578e737cb6412ae2384f352 (git)
Affected: ec9639d92c1e10d4bc667e842753d85e21683d5c (git)
Affected: e6e957f552d5b696879a31e5b0e2a9120e1ea86e (git)
Affected: 4.9.316 , < 4.10 (semver)
Affected: 4.14.281 , < 4.15 (semver)
Affected: 4.19.245 , < 4.20 (semver)
guessed Create a notification for this product.
Linux Linux Affected: 5.2
Unaffected: 0 , < 5.2 (semver)
Unaffected: 6.6.160 , ≤ 6.6.* (semver)
Unaffected: 6.12.114 , ≤ 6.12.* (semver)
Unaffected: 6.18.2 , ≤ 6.18.* (semver)
Unaffected: 6.19 , ≤ * (original_commit_for_fix)
guessed Create a notification for this product.
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            "lang": "en",
            "value": "In the Linux kernel, the following vulnerability has been resolved:\n\nscsi: qla2xxx: Clear cmds after chip reset\n\nCommit aefed3e5548f (\"scsi: qla2xxx: target: Fix offline port handling\nand host reset handling\") caused two problems:\n\n1. Commands sent to FW, after chip reset got stuck and never freed as FW\n   is not going to respond to them anymore.\n\n2. BUG_ON(cmd-\u003esg_mapped) in qlt_free_cmd().  Commit 26f9ce53817a\n   (\"scsi: qla2xxx: Fix missed DMA unmap for aborted commands\")\n   attempted to fix this, but introduced another bug under different\n   circumstances when two different CPUs were racing to call\n   qlt_unmap_sg() at the same time: BUG_ON(!valid_dma_direction(dir)) in\n   dma_unmap_sg_attrs().\n\nSo revert \"scsi: qla2xxx: Fix missed DMA unmap for aborted commands\" and\npartially revert \"scsi: qla2xxx: target: Fix offline port handling and\nhost reset handling\" at __qla2x00_abort_all_cmds."
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            "value": "En el kernel de Linux, la siguiente vulnerabilidad ha sido resuelta:\n\nscsi: qla2xxx: Borrar cmds despu\u00e9s del reinicio del chip\n\nEl commit aefed3e5548f (\u0027scsi: qla2xxx: target: Corregir el manejo de puertos fuera de l\u00ednea y el manejo de reinicio del host\u0027) caus\u00f3 dos problemas:\n\n1. Los comandos enviados al FW, despu\u00e9s del reinicio del chip, se quedaron atascados y nunca se liberaron, ya que el FW no va a responderles m\u00e1s.\n\n2. BUG_ON(cmd -\u003e sg_mapped) en qlt_free_cmd(). El commit 26f9ce53817a (\u0027scsi: qla2xxx: Corregir el desmapeo DMA omitido para comandos abortados\u0027) intent\u00f3 solucionar esto, pero introdujo otro error bajo diferentes circunstancias cuando dos CPUs diferentes estaban compitiendo para llamar a qlt_unmap_sg() al mismo tiempo: BUG_ON(!valid_dma_direction(dir)) en dma_unmap_sg_attrs().\n\nAs\u00ed que se revierte \u0027scsi: qla2xxx: Corregir el desmapeo DMA omitido para comandos abortados\u0027 y se revierte parcialmente \u0027scsi: qla2xxx: target: Corregir el manejo de puertos fuera de l\u00ednea y el manejo de reinicio del host\u0027 en __qla2x00_abort_all_cmds."
          }
        ],
        "id": "CVE-2025-68745",
        "lastModified": "2026-10-21T13:18:24.270",
        "metrics": {
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                "attackVector": "NETWORK",
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                "baseScore": 9.8,
                "baseSeverity": "CRITICAL",
                "confidentialityImpact": "HIGH",
                "integrityImpact": "HIGH",
                "privilegesRequired": "NONE",
                "scope": "UNCHANGED",
                "userInteraction": "NONE",
                "vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H",
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        "published": "2025-12-24T13:16:29.440",
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      "cve": "CVE-2025-68745",
      "id": "CVE-2025-68745",
      "initial_release_date": "2025-12-24T00:00:00+00:00",
      "product_status:fixed": "1119",
      "product_status:known_affected": "36",
      "product_status:known_not_affected": "28",
      "source": "Red Hat CSAF VEX",
      "status": "final",
      "title": "kernel: Linux kernel: Denial of Service in qla2xxx SCSI driver due to improper command handling after chip reset",
      "url": "https://security.access.redhat.com/data/csaf/v2/vex/2025/cve-2025-68745.json",
      "version": "3"
    },
    "vulnrichment": {
      "containers": {
        "adp": [
          {
            "metrics": [
              {
                "other": {
                  "content": {
                    "id": "CVE-2025-68745",
                    "options": [
                      {
                        "Exploitation": "none"
                      },
                      {
                        "Automatable": "yes"
                      },
                      {
                        "Technical Impact": "total"
                      }
                    ],
                    "role": "CISA Coordinator",
                    "timestamp": "2026-10-16T15:04:59.378599Z",
                    "version": "2.0.3"
                  },
                  "type": "ssvc"
                }
              }
            ],
            "providerMetadata": {
              "dateUpdated": "2026-10-16T15:05:00.411Z",
              "orgId": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
              "shortName": "CISA-ADP"
            },
            "title": "CISA ADP Vulnrichment"
          }
        ],
        "cna": {
          "affected": [
            {
              "defaultStatus": "unaffected",
              "product": "Linux",
              "programFiles": [
                "drivers/scsi/qla2xxx/qla_os.c",
                "drivers/scsi/qla2xxx/qla_target.c",
                "drivers/scsi/qla2xxx/qla_target.h"
              ],
              "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
              "vendor": "Linux",
              "versions": [
                {
                  "lessThan": "0d0a1a267c1ee7c41aeffdca84afcb113787a91a",
                  "status": "affected",
                  "version": "aefed3e5548f28e5fecafda6604fcbc65484dbaa",
                  "versionType": "git"
                },
                {
                  "lessThan": "c82c0fbb97d0fd44324eb55ab758408c7c964b32",
                  "status": "affected",
                  "version": "aefed3e5548f28e5fecafda6604fcbc65484dbaa",
                  "versionType": "git"
                },
                {
                  "lessThan": "5c1fb3fd05da3d55b8cbc42d7d660b313cbdc936",
                  "status": "affected",
                  "version": "aefed3e5548f28e5fecafda6604fcbc65484dbaa",
                  "versionType": "git"
                },
                {
                  "lessThan": "d46c69a087aa3d1513f7a78f871b80251ea0c1ae",
                  "status": "affected",
                  "version": "aefed3e5548f28e5fecafda6604fcbc65484dbaa",
                  "versionType": "git"
                },
                {
                  "status": "affected",
                  "version": "eb67b7a23d357f578578e737cb6412ae2384f352",
                  "versionType": "git"
                },
                {
                  "status": "affected",
                  "version": "ec9639d92c1e10d4bc667e842753d85e21683d5c",
                  "versionType": "git"
                },
                {
                  "status": "affected",
                  "version": "e6e957f552d5b696879a31e5b0e2a9120e1ea86e",
                  "versionType": "git"
                },
                {
                  "lessThan": "4.10",
                  "status": "affected",
                  "version": "4.9.316",
                  "versionType": "semver"
                },
                {
                  "lessThan": "4.15",
                  "status": "affected",
                  "version": "4.14.281",
                  "versionType": "semver"
                },
                {
                  "lessThan": "4.20",
                  "status": "affected",
                  "version": "4.19.245",
                  "versionType": "semver"
                }
              ]
            },
            {
              "defaultStatus": "affected",
              "product": "Linux",
              "programFiles": [
                "drivers/scsi/qla2xxx/qla_os.c",
                "drivers/scsi/qla2xxx/qla_target.c",
                "drivers/scsi/qla2xxx/qla_target.h"
              ],
              "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
              "vendor": "Linux",
              "versions": [
                {
                  "status": "affected",
                  "version": "5.2"
                },
                {
                  "lessThan": "5.2",
                  "status": "unaffected",
                  "version": "0",
                  "versionType": "semver"
                },
                {
                  "lessThanOrEqual": "6.6.*",
                  "status": "unaffected",
                  "version": "6.6.160",
                  "versionType": "semver"
                },
                {
                  "lessThanOrEqual": "6.12.*",
                  "status": "unaffected",
                  "version": "6.12.114",
                  "versionType": "semver"
                },
                {
                  "lessThanOrEqual": "6.18.*",
                  "status": "unaffected",
                  "version": "6.18.2",
                  "versionType": "semver"
                },
                {
                  "lessThanOrEqual": "*",
                  "status": "unaffected",
                  "version": "6.19",
                  "versionType": "original_commit_for_fix"
                }
              ]
            }
          ],
          "cpeApplicability": [
            {
              "nodes": [
                {
                  "cpeMatch": [
                    {
                      "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                      "versionEndExcluding": "6.6.160",
                      "versionStartIncluding": "5.2",
                      "vulnerable": true
                    },
                    {
                      "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                      "versionEndExcluding": "6.12.114",
                      "versionStartIncluding": "5.2",
                      "vulnerable": true
                    },
                    {
                      "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                      "versionEndExcluding": "6.18.2",
                      "versionStartIncluding": "5.2",
                      "vulnerable": true
                    },
                    {
                      "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                      "versionEndExcluding": "6.19",
                      "versionStartIncluding": "5.2",
                      "vulnerable": true
                    },
                    {
                      "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                      "versionStartIncluding": "4.9.316",
                      "vulnerable": true
                    },
                    {
                      "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                      "versionStartIncluding": "4.14.281",
                      "vulnerable": true
                    },
                    {
                      "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                      "versionStartIncluding": "4.19.245",
                      "vulnerable": true
                    }
                  ],
                  "negate": false,
                  "operator": "OR"
                }
              ]
            }
          ],
          "descriptions": [
            {
              "lang": "en",
              "value": "In the Linux kernel, the following vulnerability has been resolved:\n\nscsi: qla2xxx: Clear cmds after chip reset\n\nCommit aefed3e5548f (\"scsi: qla2xxx: target: Fix offline port handling\nand host reset handling\") caused two problems:\n\n1. Commands sent to FW, after chip reset got stuck and never freed as FW\n   is not going to respond to them anymore.\n\n2. BUG_ON(cmd-\u003esg_mapped) in qlt_free_cmd().  Commit 26f9ce53817a\n   (\"scsi: qla2xxx: Fix missed DMA unmap for aborted commands\")\n   attempted to fix this, but introduced another bug under different\n   circumstances when two different CPUs were racing to call\n   qlt_unmap_sg() at the same time: BUG_ON(!valid_dma_direction(dir)) in\n   dma_unmap_sg_attrs().\n\nSo revert \"scsi: qla2xxx: Fix missed DMA unmap for aborted commands\" and\npartially revert \"scsi: qla2xxx: target: Fix offline port handling and\nhost reset handling\" at __qla2x00_abort_all_cmds."
            }
          ],
          "metrics": [
            {
              "cvssV3_1": {
                "baseScore": 9.8,
                "baseSeverity": "CRITICAL",
                "vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H",
                "version": "3.1"
              },
              "scenarios": [
                {
                  "lang": "en",
                  "value": "AV:N - A remote Fibre Channel/FCoE initiator can reach the vulnerable command lifecycle by sending FCP I/O and ABTS/TMR frames, without local host access.\nAC:L - The initiator can keep large PI/DIF I/O active while repeatedly issuing abort or reset requests, controlling both sides of the abort-versus-completion race.\nPR:N - Dynamic/demo ACL configurations admit fabric initiators without credentials, and WWPN-based session establishment requires no privilege on the target host.\nUI:N - Exploitation requires only attacker-generated fabric traffic and no victim action during the attack.\nS:U - The vulnerable driver and the affected kernel memory and storage resources belong to the same security authority.\nC:H - Concurrent unmapping can double-free shared DIF CRC-context and DSD objects, producing overlapping firmware-visible DMA contexts that can expose kernel or cross-command data.\nI:H - The DMA-pool double-free and concurrent DSD list deletion can corrupt kernel memory or redirect device DMA, potentially enabling arbitrary modification or code execution.\nA:H - The reported paths reach kernel BUG assertions, while reset-time command leaks can permanently exhaust resources; either can crash or render the target unavailable."
                }
              ]
            }
          ],
          "providerMetadata": {
            "dateUpdated": "2026-10-21T12:38:27.015Z",
            "orgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
            "shortName": "Linux"
          },
          "references": [
            {
              "url": "https://git.kernel.org/stable/c/0d0a1a267c1ee7c41aeffdca84afcb113787a91a"
            },
            {
              "url": "https://git.kernel.org/stable/c/c82c0fbb97d0fd44324eb55ab758408c7c964b32"
            },
            {
              "url": "https://git.kernel.org/stable/c/5c1fb3fd05da3d55b8cbc42d7d660b313cbdc936"
            },
            {
              "url": "https://git.kernel.org/stable/c/d46c69a087aa3d1513f7a78f871b80251ea0c1ae"
            }
          ],
          "title": "scsi: qla2xxx: Clear cmds after chip reset",
          "x_generator": {
            "engine": "bippy-1.2.0"
          }
        }
      },
      "cveMetadata": {
        "assignerOrgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
        "assignerShortName": "Linux",
        "cveId": "CVE-2025-68745",
        "datePublished": "2025-12-24T12:09:41.517Z",
        "dateReserved": "2025-12-24T10:30:51.031Z",
        "dateUpdated": "2026-10-21T12:38:27.015Z",
        "state": "PUBLISHED"
      },
      "dataType": "CVE_RECORD",
      "dataVersion": "5.2"
    }
  }
}



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