scsi: qla2xxx: Fix improper freeing of purex item

{
  "id": "63edd945fc415ced2971839a9fe586aaebbb4964b843b0a1f077a30cc53a6792",
  "url": "https://osv.dev/vulnerability/CVE-2025-68741",
  "method": "structured",
  "payload": {
    "kind": "advisory",
    "title": "scsi: qla2xxx: Fix improper freeing of purex item",
    "summary": "In the Linux kernel, the following vulnerability has been resolved: scsi: qla2xxx: Fix improper freeing of purex item In qla2xxx_process_purls_iocb(), an item is allocated via qla27xx_copy_multiple_pkt(), which internally calls qla24xx_alloc_purex_item(). The qla24xx_alloc_purex_item() function may return a pre-allocated item from a per-adapter pool for small allocations, instead of dynamically allocating memory with kzalloc(). An error handling path in qla2xxx_process_purls_iocb() incorrectly uses kfree() to release the item. If the item was from the pre-allocated pool, calling kfree() on it is a bug that can lead to memory corruption. Fix this by using the correct deallocation function, qla24xx_free_purex_item(), which properly handles both dynamically allocated and pre-allocated items.",
    "evidence": "osv:CVE-2025-68741",
    "products": [
      {
        "name": {
          "value": "Kernel",
          "evidence": "/affected/1/package/name"
        },
        "prerequisites": [],
        "fixed_versions": [
          {
            "value": "6.6.120",
            "evidence": "/affected/1/ranges"
          },
          {
            "value": "6.12.63",
            "evidence": "/affected/1/ranges"
          },
          {
            "value": "6.17.13",
            "evidence": "/affected/1/ranges"
          },
          {
            "value": "6.18.2",
            "evidence": "/affected/1/ranges"
          }
        ],
        "affected_versions": []
      }
    ],
    "severity": "critical",
    "structured": {
      "id": "CVE-2025-68741",
      "aliases": [
        "CVE-2025-68741"
      ],
      "metrics": [
        {
          "type": "CVSS_V3",
          "score": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H"
        }
      ],
      "affected": [
        {
          "ranges": [
            {
              "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
              "type": "GIT",
              "events": [
                {
                  "introduced": "875386b98857822b77ac7f95bdf367b70af5b78c"
                },
                {
                  "fixed": "4bccd506a1f1ab01d1f45b2a3effff6bedc73cf9"
                },
                {
                  "fixed": "8e9f0a0717ba31d5842721627ade1e62d7aec012"
                },
                {
                  "fixed": "cfe3e2f768d248fd3d965d561d0768a56dd0b9f8"
                },
                {
                  "fixed": "5fa1c8226b4532ad7011d295d3ab4ad45df105ae"
                },
                {
                  "fixed": "78b1a242fe612a755f2158fd206ee6bb577d18ca"
                }
              ]
            }
          ],
          "database_specific": {
            "source": "https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2025-68741.json"
          }
        },
        {
          "ranges": [
            {
              "type": "ECOSYSTEM",
              "events": [
                {
                  "introduced": "6.6.0"
                },
                {
                  "fixed": "6.6.120"
                }
              ]
            },
            {
              "type": "ECOSYSTEM",
              "events": [
                {
                  "introduced": "6.7.0"
                },
                {
                  "fixed": "6.12.63"
                }
              ]
            },
            {
              "type": "ECOSYSTEM",
              "events": [
                {
                  "introduced": "6.13.0"
                },
                {
                  "fixed": "6.17.13"
                }
              ]
            },
            {
              "type": "ECOSYSTEM",
              "events": [
                {
                  "introduced": "6.18.0"
                },
                {
                  "fixed": "6.18.2"
                }
              ]
            }
          ],
          "package": {
            "name": "Kernel",
            "ecosystem": "Linux"
          },
          "database_specific": {
            "source": "https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2025-68741.json"
          }
        }
      ],
      "modified": "2026-10-28T02:30:30.400979628Z",
      "provider": "osv",
      "references": [
        "https://git.kernel.org/stable/c/4bccd506a1f1ab01d1f45b2a3effff6bedc73cf9",
        "https://git.kernel.org/stable/c/5fa1c8226b4532ad7011d295d3ab4ad45df105ae",
        "https://git.kernel.org/stable/c/78b1a242fe612a755f2158fd206ee6bb577d18ca",
        "https://git.kernel.org/stable/c/8e9f0a0717ba31d5842721627ade1e62d7aec012",
        "https://git.kernel.org/stable/c/cfe3e2f768d248fd3d965d561d0768a56dd0b9f8",
        "https://github.com/CVEProject/cvelistV5/tree/main/cves/2025/68xxx/CVE-2025-68741.json",
        "https://nvd.nist.gov/vuln/detail/CVE-2025-68741",
        "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git"
      ],
      "provider_metadata": {
        "cna_assigner": "Linux",
        "osv_generated_from": "https://github.com/CVEProject/cvelistV5/tree/main/cves/2025/68xxx/CVE-2025-68741.json"
      }
    },
    "related_cves": [
      {
        "value": "CVE-2025-68741",
        "evidence": "/id"
      }
    ],
    "security_relevant": true,
    "severity_evidence": "/severity/0/score"
  },
  "source_id": "core-osv",
  "document_id": 496912,
  "published_at": "2025-12-24T12:09:38.655+00:00"
}