{
  "cveId": "CVE-2026-43055",
  "url": "https://patchblox.com/security/cve/CVE-2026-43055",
  "summary": "CVE-2026-43055 is fixed in 19 products on 1 platform, first by DEBIAN-CVE-2026-43055, released May 15, 2026. It is not reported as exploited. Patch Radar priority: High.",
  "title": "linux: In the Linux kernel, the following vulnerability has been resolved:  scsi: target: file: Use kzalloc_flex for aio_cmd...",
  "description": "In the Linux kernel, the following vulnerability has been resolved:  scsi: target: file: Use kzalloc_flex for aio_cmd  The target_core_file doesn\u0027t initialize the aio_cmd-\u003Eiocb for the ki_write_stream. When a write command fd_execute_rw_aio() is executed, we may get a bogus ki_write_stream value, causing unintended write failure status when checking iocb-\u003Eki_write_stream \u003E max_write_streams in the block device.  Let\u0027s just use kzalloc_flex when allocating the aio_cmd and let ki_write_stream=0 to fix this issue.",
  "published": "2026-05-01T15:16:52Z",
  "severity": "high",
  "cvss": 7.5,
  "cvssVector": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H",
  "epss": 0.00358,
  "epssPercentile": 0.29793,
  "priority": "High",
  "priorityTier": 3,
  "exploited": false,
  "vendorExploited": false,
  "disclosed": false,
  "fixes": [
    {
      "platform": "linux",
      "product": "bpftool6.18",
      "release": "amzn 2023",
      "fixedVersion": "1:6.18.25-52.107.amzn2023",
      "fix": "ALAS2023-2026-1746",
      "url": "https://patchblox.com/security/fix/linux/alas2023-2026-1746",
      "released": "2026-05-25T09:00:00Z"
    },
    {
      "platform": "linux",
      "product": "bpftool6.18-debuginfo",
      "release": "amzn 2023",
      "fixedVersion": "1:6.18.25-52.107.amzn2023",
      "fix": "ALAS2023-2026-1746",
      "url": "https://patchblox.com/security/fix/linux/alas2023-2026-1746",
      "released": "2026-05-25T09:00:00Z"
    },
    {
      "platform": "linux",
      "product": "kernel-livepatch-6.18.25-52.107",
      "release": "amzn 2023",
      "fixedVersion": "1:1.0-0.amzn2023",
      "fix": "ALAS2023-2026-1746",
      "url": "https://patchblox.com/security/fix/linux/alas2023-2026-1746",
      "released": "2026-05-25T09:00:00Z"
    },
    {
      "platform": "linux",
      "product": "kernel6.18",
      "release": "amzn 2023",
      "fixedVersion": "1:6.18.25-52.107.amzn2023",
      "fix": "ALAS2023-2026-1746",
      "url": "https://patchblox.com/security/fix/linux/alas2023-2026-1746",
      "released": "2026-05-25T09:00:00Z"
    },
    {
      "platform": "linux",
      "product": "kernel6.18-debuginfo",
      "release": "amzn 2023",
      "fixedVersion": "1:6.18.25-52.107.amzn2023",
      "fix": "ALAS2023-2026-1746",
      "url": "https://patchblox.com/security/fix/linux/alas2023-2026-1746",
      "released": "2026-05-25T09:00:00Z"
    },
    {
      "platform": "linux",
      "product": "kernel6.18-debuginfo-common-aarch64",
      "release": "amzn 2023",
      "fixedVersion": "1:6.18.25-52.107.amzn2023",
      "fix": "ALAS2023-2026-1746",
      "url": "https://patchblox.com/security/fix/linux/alas2023-2026-1746",
      "released": "2026-05-25T09:00:00Z"
    },
    {
      "platform": "linux",
      "product": "kernel6.18-debuginfo-common-x86_64",
      "release": "amzn 2023",
      "fixedVersion": "1:6.18.25-52.107.amzn2023",
      "fix": "ALAS2023-2026-1746",
      "url": "https://patchblox.com/security/fix/linux/alas2023-2026-1746",
      "released": "2026-05-25T09:00:00Z"
    },
    {
      "platform": "linux",
      "product": "kernel6.18-devel",
      "release": "amzn 2023",
      "fixedVersion": "1:6.18.25-52.107.amzn2023",
      "fix": "ALAS2023-2026-1746",
      "url": "https://patchblox.com/security/fix/linux/alas2023-2026-1746",
      "released": "2026-05-25T09:00:00Z"
    },
    {
      "platform": "linux",
      "product": "kernel6.18-headers",
      "release": "amzn 2023",
      "fixedVersion": "1:6.18.25-52.107.amzn2023",
      "fix": "ALAS2023-2026-1746",
      "url": "https://patchblox.com/security/fix/linux/alas2023-2026-1746",
      "released": "2026-05-25T09:00:00Z"
    },
    {
      "platform": "linux",
      "product": "kernel6.18-modules-extra",
      "release": "amzn 2023",
      "fixedVersion": "1:6.18.25-52.107.amzn2023",
      "fix": "ALAS2023-2026-1746",
      "url": "https://patchblox.com/security/fix/linux/alas2023-2026-1746",
      "released": "2026-05-25T09:00:00Z"
    },
    {
      "platform": "linux",
      "product": "kernel6.18-modules-extra-common",
      "release": "amzn 2023",
      "fixedVersion": "1:6.18.25-52.107.amzn2023",
      "fix": "ALAS2023-2026-1746",
      "url": "https://patchblox.com/security/fix/linux/alas2023-2026-1746",
      "released": "2026-05-25T09:00:00Z"
    },
    {
      "platform": "linux",
      "product": "kernel6.18-tools",
      "release": "amzn 2023",
      "fixedVersion": "1:6.18.25-52.107.amzn2023",
      "fix": "ALAS2023-2026-1746",
      "url": "https://patchblox.com/security/fix/linux/alas2023-2026-1746",
      "released": "2026-05-25T09:00:00Z"
    },
    {
      "platform": "linux",
      "product": "kernel6.18-tools-debuginfo",
      "release": "amzn 2023",
      "fixedVersion": "1:6.18.25-52.107.amzn2023",
      "fix": "ALAS2023-2026-1746",
      "url": "https://patchblox.com/security/fix/linux/alas2023-2026-1746",
      "released": "2026-05-25T09:00:00Z"
    },
    {
      "platform": "linux",
      "product": "kernel6.18-tools-devel",
      "release": "amzn 2023",
      "fixedVersion": "1:6.18.25-52.107.amzn2023",
      "fix": "ALAS2023-2026-1746",
      "url": "https://patchblox.com/security/fix/linux/alas2023-2026-1746",
      "released": "2026-05-25T09:00:00Z"
    },
    {
      "platform": "linux",
      "product": "linux",
      "release": "Debian 14",
      "fixedVersion": "6.19.12-1",
      "fix": "DEBIAN-CVE-2026-43055",
      "url": "https://patchblox.com/security/fix/linux/debian-cve-2026-43055",
      "released": "2026-05-15T16:01:09Z"
    },
    {
      "platform": "linux",
      "product": "perf6.18",
      "release": "amzn 2023",
      "fixedVersion": "1:6.18.25-52.107.amzn2023",
      "fix": "ALAS2023-2026-1746",
      "url": "https://patchblox.com/security/fix/linux/alas2023-2026-1746",
      "released": "2026-05-25T09:00:00Z"
    },
    {
      "platform": "linux",
      "product": "perf6.18-debuginfo",
      "release": "amzn 2023",
      "fixedVersion": "1:6.18.25-52.107.amzn2023",
      "fix": "ALAS2023-2026-1746",
      "url": "https://patchblox.com/security/fix/linux/alas2023-2026-1746",
      "released": "2026-05-25T09:00:00Z"
    },
    {
      "platform": "linux",
      "product": "python3-perf6.18",
      "release": "amzn 2023",
      "fixedVersion": "1:6.18.25-52.107.amzn2023",
      "fix": "ALAS2023-2026-1746",
      "url": "https://patchblox.com/security/fix/linux/alas2023-2026-1746",
      "released": "2026-05-25T09:00:00Z"
    },
    {
      "platform": "linux",
      "product": "python3-perf6.18-debuginfo",
      "release": "amzn 2023",
      "fixedVersion": "1:6.18.25-52.107.amzn2023",
      "fix": "ALAS2023-2026-1746",
      "url": "https://patchblox.com/security/fix/linux/alas2023-2026-1746",
      "released": "2026-05-25T09:00:00Z"
    }
  ],
  "noFixYet": [],
  "dataAsOf": "2026-11-09T01:18:40Z",
  "attribution": {
    "text": "Data: Patchblox Patch Radar",
    "url": "https://patchblox.com/security/patch-radar",
    "terms": "https://patchblox.com/security/patch-radar/use-the-data"
  }
}