{
  "affected": [
    {
      "ranges": [
        {
          "events": [
            {
              "introduced": "732f25a2895a8c1c54fb56544f0b1e23770ef4d7"
            },
            {
              "fixed": "ce54802fe6bb78eb0feffc66fed6a45d41ffc3ab"
            },
            {
              "fixed": "4eaff1728d0e69b95933412241bbccf4f797dba8"
            },
            {
              "fixed": "01f784fc9d0ab2a6dac45ee443620e517cb2a19b"
            }
          ],
          "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
          "type": "GIT"
        }
      ]
    },
    {
      "package": {
        "ecosystem": "Linux",
        "name": "Kernel"
      },
      "ranges": [
        {
          "events": [
            {
              "introduced": "6.16.0"
            },
            {
              "fixed": "6.18.22"
            }
          ],
          "type": "ECOSYSTEM"
        },
        {
          "events": [
            {
              "introduced": "6.19.0"
            },
            {
              "fixed": "6.19.12"
            }
          ],
          "type": "ECOSYSTEM"
        }
      ]
    }
  ],
  "database_specific": {
    "cna_assigner": "Linux",
    "osv_generated_from": "https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/43xxx/CVE-2026-43055.json"
  },
  "details": "In the Linux kernel, the following vulnerability has been resolved:\n\nscsi: target: file: Use kzalloc_flex for aio_cmd\n\nThe target_core_file doesn't initialize the aio_cmd-\u003eiocb for the\nki_write_stream. When a write command fd_execute_rw_aio() is executed,\nwe may get a bogus ki_write_stream value, causing unintended write\nfailure status when checking iocb-\u003eki_write_stream \u003e max_write_streams\nin the block device.\n\nLet's just use kzalloc_flex when allocating the aio_cmd and let\nki_write_stream=0 to fix this issue.",
  "id": "CVE-2026-43055",
  "modified": "2026-07-15T01:48:55.227509254Z",
  "published": "2026-05-01T14:15:48.139Z",
  "references": [
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/01f784fc9d0ab2a6dac45ee443620e517cb2a19b"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/4eaff1728d0e69b95933412241bbccf4f797dba8"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/ce54802fe6bb78eb0feffc66fed6a45d41ffc3ab"
    },
    {
      "type": "ADVISORY",
      "url": "https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/43xxx/CVE-2026-43055.json"
    },
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2026-43055"
    },
    {
      "type": "PACKAGE",
      "url": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git"
    }
  ],
  "schema_version": "1.8.0",
  "severity": [
    {
      "score": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H",
      "type": "CVSS_V3"
    }
  ],
  "summary": "scsi: target: file: Use kzalloc_flex for aio_cmd"
}