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CVE-2026-43006 io_uring/rsrc: reject zero-length fixed buffer import

🗓️ 01 May 2026 14:15:14Reported by LinuxType 
cvelist
 cvelist
🔗 www.cve.org👁 42 Views

Kernel io_uring fixes rejection of zero-length fixed buffer import to prevent out-of-bounds reads.

Related
Affected
Refs
[
  {
    "product": "Linux",
    "vendor": "Linux",
    "defaultStatus": "unaffected",
    "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
    "programFiles": [
      "io_uring/rsrc.c"
    ],
    "versions": [
      {
        "version": "8622b20f23ed165f48b8ca61503a107d17f8d585",
        "lessThan": "040a1e7e0e2f01851fec1dd2d96906f8636a9f75",
        "status": "affected",
        "versionType": "git"
      },
      {
        "version": "8622b20f23ed165f48b8ca61503a107d17f8d585",
        "lessThan": "40170fc1a79c1b2e68f09ae6aac687b7305ae6f4",
        "status": "affected",
        "versionType": "git"
      },
      {
        "version": "8622b20f23ed165f48b8ca61503a107d17f8d585",
        "lessThan": "111a12b422a8cfa93deabaef26fec48237163214",
        "status": "affected",
        "versionType": "git"
      }
    ]
  },
  {
    "product": "Linux",
    "vendor": "Linux",
    "defaultStatus": "affected",
    "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
    "programFiles": [
      "io_uring/rsrc.c"
    ],
    "versions": [
      {
        "version": "6.15",
        "status": "affected"
      },
      {
        "version": "0",
        "lessThan": "6.15",
        "status": "unaffected",
        "versionType": "semver"
      },
      {
        "version": "6.18.22",
        "lessThanOrEqual": "6.18.*",
        "status": "unaffected",
        "versionType": "semver"
      },
      {
        "version": "6.19.12",
        "lessThanOrEqual": "6.19.*",
        "status": "unaffected",
        "versionType": "semver"
      },
      {
        "version": "7.0",
        "lessThanOrEqual": "*",
        "status": "unaffected",
        "versionType": "original_commit_for_fix"
      }
    ]
  }
]

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11 May 2026 22:15Current
CVSS 3.17.1
EPSS0.00124
42