ublk: fix handling recovery & reissue in ublk_abort_queue()

{
  "id": "5e370c2df672f824b98f91efcc8e191438e84f6791f4b2832dab7469c92bad07",
  "url": "https://osv.dev/vulnerability/CVE-2025-37759",
  "method": "structured",
  "payload": {
    "kind": "advisory",
    "title": "ublk: fix handling recovery & reissue in ublk_abort_queue()",
    "summary": "In the Linux kernel, the following vulnerability has been resolved: ublk: fix handling recovery & reissue in ublk_abort_queue() Commit 8284066946e6 (\"ublk: grab request reference when the request is handled by userspace\") doesn't grab request reference in case of recovery reissue. Then the request can be requeued & re-dispatch & failed when canceling uring command. If it is one zc request, the request can be freed before io_uring returns the zc buffer back, then cause kernel panic: [ 126.773061] BUG: kernel NULL pointer dereference, address: 00000000000000c8 [ 126.773657] #PF: supervisor read access in kernel mode [ 126.774052] #PF: error_code(0x0000) - not-present page [ 126.774455] PGD 0 P4D 0 [ 126.774698] Oops: Oops: 0000 [#1] SMP NOPTI [ 126.775034] CPU: 13 UID: 0 PID: 1612 Comm: kworker/u64:55 Not tainted 6.14.0_blk+ #182 PREEMPT(full) [ 126.775676] Hardware name: QEMU Standard PC (Q35 + ICH9, 2009), BIOS 1.16.3-1.fc39 04/01/2014 [ 126.776275] Workqueue: iou_exit io_ring_exit_work [ 126.776651] RIP: 0010:ublk_io_release+0x14/0x130 [ublk_drv] Fixes it by always grabbing request reference for aborting the request.",
    "evidence": "osv:CVE-2025-37759",
    "products": [
      {
        "name": {
          "value": "Kernel",
          "evidence": "/affected/1/package/name"
        },
        "prerequisites": [],
        "fixed_versions": [
          {
            "value": "6.6.160",
            "evidence": "/affected/1/ranges"
          },
          {
            "value": "6.12.24",
            "evidence": "/affected/1/ranges"
          },
          {
            "value": "6.13.12",
            "evidence": "/affected/1/ranges"
          },
          {
            "value": "6.14.3",
            "evidence": "/affected/1/ranges"
          }
        ],
        "affected_versions": []
      }
    ],
    "severity": "unknown",
    "structured": {
      "id": "CVE-2025-37759",
      "aliases": [
        "CVE-2025-37759"
      ],
      "affected": [
        {
          "ranges": [
            {
              "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
              "type": "GIT",
              "events": [
                {
                  "introduced": "8284066946e6d9cc979566ce698fe24e7ca0b31e"
                },
                {
                  "fixed": "ab41bf5a211fbec3a85e025658ed90a911ccb692"
                },
                {
                  "fixed": "caa5c8a2358604f38bf0a4afaa5eacda13763067"
                },
                {
                  "fixed": "5d34a30efac9c9c93e150130caa940c0df6053c1"
                },
                {
                  "fixed": "0a21d259ca4d6310fdfcc0284ebbc000e66cbf70"
                },
                {
                  "fixed": "6ee6bd5d4fce502a5b5a2ea805e9ff16e6aa890f"
                }
              ]
            }
          ],
          "database_specific": {
            "source": "https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2025-37759.json"
          }
        },
        {
          "ranges": [
            {
              "type": "ECOSYSTEM",
              "events": [
                {
                  "introduced": "6.5.0"
                },
                {
                  "fixed": "6.6.160"
                }
              ]
            },
            {
              "type": "ECOSYSTEM",
              "events": [
                {
                  "introduced": "6.7.0"
                },
                {
                  "fixed": "6.12.24"
                }
              ]
            },
            {
              "type": "ECOSYSTEM",
              "events": [
                {
                  "introduced": "6.13.0"
                },
                {
                  "fixed": "6.13.12"
                }
              ]
            },
            {
              "type": "ECOSYSTEM",
              "events": [
                {
                  "introduced": "6.14.0"
                },
                {
                  "fixed": "6.14.3"
                }
              ]
            }
          ],
          "package": {
            "name": "Kernel",
            "ecosystem": "Linux"
          },
          "database_specific": {
            "source": "https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2025-37759.json"
          }
        }
      ],
      "modified": "2026-10-28T02:30:37.192922351Z",
      "provider": "osv",
      "references": [
        "https://git.kernel.org/stable/c/0a21d259ca4d6310fdfcc0284ebbc000e66cbf70",
        "https://git.kernel.org/stable/c/5d34a30efac9c9c93e150130caa940c0df6053c1",
        "https://git.kernel.org/stable/c/6ee6bd5d4fce502a5b5a2ea805e9ff16e6aa890f",
        "https://git.kernel.org/stable/c/ab41bf5a211fbec3a85e025658ed90a911ccb692",
        "https://git.kernel.org/stable/c/caa5c8a2358604f38bf0a4afaa5eacda13763067",
        "https://github.com/CVEProject/cvelistV5/tree/main/cves/2025/37xxx/CVE-2025-37759.json",
        "https://nvd.nist.gov/vuln/detail/CVE-2025-37759",
        "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/2025/37xxx/CVE-2025-37759.json"
      }
    },
    "related_cves": [
      {
        "value": "CVE-2025-37759",
        "evidence": "/id"
      }
    ],
    "security_relevant": true,
    "severity_evidence": null
  },
  "source_id": "core-osv",
  "document_id": 504490,
  "published_at": "2025-05-01T12:56:03.462+00:00"
}