scsi: target: file: Use kzalloc_flex for aio_cmd_CVE-2026-43055

{
    "lastseen": "",
    "description": "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->iocb 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->ki_write_stream > 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.",
    "published": "2026-05-01T14:15:48.139Z",
    "modified": "2026-05-03T05:46:25.662Z",
    "type": "cve",
    "title": "scsi: target: file: Use kzalloc_flex for aio_cmd",
    "source": "Linux",
    "references": "https://git.kernel.org/stable/c/ce54802fe6bb78eb0feffc66fed6a45d41ffc3ab\nhttps://git.kernel.org/stable/c/4eaff1728d0e69b95933412241bbccf4f797dba8\nhttps://git.kernel.org/stable/c/01f784fc9d0ab2a6dac45ee443620e517cb2a19b",
    "id": "CVE-2026-43055",
    "bulletinFamily": "",
    "cwe": null,
    "cvelist": null,
    "sourceData": "Linux Linux 732f25a2895a8c1c54fb56544f0b1e23770ef4d7\nLinux Linux 732f25a2895a8c1c54fb56544f0b1e23770ef4d7\nLinux Linux 732f25a2895a8c1c54fb56544f0b1e23770ef4d7\nLinux Linux 6.16",
    "sourceHref": "",
    "cvss": {
        "score": 7.5,
        "severity": "HIGH",
        "vector": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H",
        "version": "3.1"
    },
    "cvss2": [],
    "cvss3": {
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        "baseScore": 0,
        "baseSeverity": "",
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        "privilegesRequired": "",
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        "scope": "",
        "confidentialityImpact": "",
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        "availabilityImpact": "",
        "cvssV3": {
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    },
    "href": "",
    "category_name": "CVE",
    "post_link": "",
    "product": "Linux",
    "version": "732f25a2895a8c1c54fb56544f0b1e23770ef4d7",
    "vendor": "Linux",
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    "ai_score": 0
}