{
  "cveId": "CVE-2026-23259",
  "url": "https://patchblox.com/security/cve/CVE-2026-23259",
  "summary": "CVE-2026-23259 is fixed in 37 products on 1 platform, first by DEBIAN-CVE-2026-23259, released March 18, 2026. It is not reported as exploited. Patch Radar priority: Routine.",
  "title": "io_uring/rw: free potentially allocated iovec on cache put failure",
  "description": "In the Linux kernel, the following vulnerability has been resolved:  io_uring/rw: free potentially allocated iovec on cache put failure  If a read/write request goes through io_req_rw_cleanup() and has an allocated iovec attached and fails to put to the rw_cache, then it may end up with an unaccounted iovec pointer. Have io_rw_recycle() return whether it recycled the request or not, and use that to gauge whether to free a potential iovec or not.",
  "published": "2026-03-18T18:16:24Z",
  "severity": "Moderate",
  "cvss": 5.5,
  "cvssVector": "CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H",
  "epss": 0.00169,
  "epssPercentile": 0.06287,
  "priority": "Routine",
  "priorityTier": 4,
  "exploited": false,
  "vendorExploited": false,
  "disclosed": false,
  "vendorAdvisory": "https://msrc.microsoft.com/update-guide/vulnerability/CVE-2026-23259",
  "fixes": [
    {
      "platform": "linux",
      "product": "bpftool6.18",
      "release": "amzn 2023",
      "fixedVersion": "1:6.18.15-14.217.amzn2023",
      "fix": "ALAS2023-2026-1514",
      "url": "https://patchblox.com/security/fix/linux/alas2023-2026-1514",
      "released": "2026-03-30T09:00:00Z"
    },
    {
      "platform": "linux",
      "product": "bpftool6.18-debuginfo",
      "release": "amzn 2023",
      "fixedVersion": "1:6.18.15-14.217.amzn2023",
      "fix": "ALAS2023-2026-1514",
      "url": "https://patchblox.com/security/fix/linux/alas2023-2026-1514",
      "released": "2026-03-30T09:00:00Z"
    },
    {
      "platform": "linux",
      "product": "dtb-aarch64",
      "release": "opensuse-leap 16.0",
      "fixedVersion": "6.12.0-160000.37.1",
      "fix": "OPENSUSE-SU-2026:21555-1",
      "url": "https://patchblox.com/security/fix/linux/opensuse-su-2026-21555-1",
      "released": "2026-08-12T01:09:28Z"
    },
    {
      "platform": "linux",
      "product": "kernel-64kb",
      "release": "opensuse-leap 16.0",
      "fixedVersion": "6.12.0-160000.37.1",
      "fix": "OPENSUSE-SU-2026:21555-1",
      "url": "https://patchblox.com/security/fix/linux/opensuse-su-2026-21555-1",
      "released": "2026-08-12T01:09:28Z"
    },
    {
      "platform": "linux",
      "product": "kernel-64kb",
      "release": "sles 16.0",
      "fixedVersion": "6.12.0-160000.37.1",
      "fix": "SUSE-SU-2026:23231-1",
      "url": "https://patchblox.com/security/fix/linux/suse-su-2026-23231-1",
      "released": "2026-08-11T21:26:34Z"
    },
    {
      "platform": "linux",
      "product": "kernel-azure",
      "release": "opensuse-leap 16.0",
      "fixedVersion": "6.12.0-160000.37.1",
      "fix": "OPENSUSE-SU-2026:21555-1",
      "url": "https://patchblox.com/security/fix/linux/opensuse-su-2026-21555-1",
      "released": "2026-08-12T01:09:28Z"
    },
    {
      "platform": "linux",
      "product": "kernel-azure",
      "release": "sles 16.0",
      "fixedVersion": "6.12.0-160000.37.1",
      "fix": "SUSE-SU-2026:23231-1",
      "url": "https://patchblox.com/security/fix/linux/suse-su-2026-23231-1",
      "released": "2026-08-11T21:26:34Z"
    },
    {
      "platform": "linux",
      "product": "kernel-default",
      "release": "opensuse-leap 16.0",
      "fixedVersion": "6.12.0-160000.37.1",
      "fix": "OPENSUSE-SU-2026:21555-1",
      "url": "https://patchblox.com/security/fix/linux/opensuse-su-2026-21555-1",
      "released": "2026-08-12T01:09:28Z"
    },
    {
      "platform": "linux",
      "product": "kernel-default",
      "release": "sles 16.0",
      "fixedVersion": "6.12.0-160000.37.1",
      "fix": "SUSE-SU-2026:23237-1",
      "url": "https://patchblox.com/security/fix/linux/suse-su-2026-23237-1",
      "released": "2026-08-11T21:34:22Z"
    },
    {
      "platform": "linux",
      "product": "kernel-default-base",
      "release": "opensuse-leap 16.0",
      "fixedVersion": "6.12.0-160000.37.1.160000.2.19",
      "fix": "OPENSUSE-SU-2026:21555-1",
      "url": "https://patchblox.com/security/fix/linux/opensuse-su-2026-21555-1",
      "released": "2026-08-12T01:09:28Z"
    },
    {
      "platform": "linux",
      "product": "kernel-default-base",
      "release": "sles 16.0",
      "fixedVersion": "6.12.0-160000.37.1.160000.2.19",
      "fix": "SUSE-SU-2026:23231-1",
      "url": "https://patchblox.com/security/fix/linux/suse-su-2026-23231-1",
      "released": "2026-08-11T21:26:34Z"
    },
    {
      "platform": "linux",
      "product": "kernel-docs",
      "release": "opensuse-leap 16.0",
      "fixedVersion": "6.12.0-160000.37.1",
      "fix": "OPENSUSE-SU-2026:21555-1",
      "url": "https://patchblox.com/security/fix/linux/opensuse-su-2026-21555-1",
      "released": "2026-08-12T01:09:28Z"
    },
    {
      "platform": "linux",
      "product": "kernel-docs",
      "release": "sles 16.0",
      "fixedVersion": "6.12.0-160000.37.1",
      "fix": "SUSE-SU-2026:23231-1",
      "url": "https://patchblox.com/security/fix/linux/suse-su-2026-23231-1",
      "released": "2026-08-11T21:26:34Z"
    },
    {
      "platform": "linux",
      "product": "kernel-kvmsmall",
      "release": "opensuse-leap 16.0",
      "fixedVersion": "6.12.0-160000.37.1",
      "fix": "OPENSUSE-SU-2026:21555-1",
      "url": "https://patchblox.com/security/fix/linux/opensuse-su-2026-21555-1",
      "released": "2026-08-12T01:09:28Z"
    },
    {
      "platform": "linux",
      "product": "kernel-kvmsmall",
      "release": "sles 16.0",
      "fixedVersion": "6.12.0-160000.37.1",
      "fix": "SUSE-SU-2026:23231-1",
      "url": "https://patchblox.com/security/fix/linux/suse-su-2026-23231-1",
      "released": "2026-08-11T21:26:34Z"
    },
    {
      "platform": "linux",
      "product": "kernel-livepatch-6.18.15-14.217",
      "release": "amzn 2023",
      "fixedVersion": "1:1.0-0.amzn2023",
      "fix": "ALAS2023-2026-1514",
      "url": "https://patchblox.com/security/fix/linux/alas2023-2026-1514",
      "released": "2026-03-30T09:00:00Z"
    },
    {
      "platform": "linux",
      "product": "kernel-livepatch-SLE15-SP7-RT_Update_11",
      "release": "sles 15.7",
      "fixedVersion": "1-150700.1.3.1",
      "fix": "SUSE-SU-2026:1573-1",
      "url": "https://patchblox.com/security/fix/linux/suse-su-2026-1573-1",
      "released": "2026-04-23T15:52:40Z"
    },
    {
      "platform": "linux",
      "product": "kernel-obs-build",
      "release": "opensuse-leap 16.0",
      "fixedVersion": "6.12.0-160000.37.1",
      "fix": "OPENSUSE-SU-2026:21555-1",
      "url": "https://patchblox.com/security/fix/linux/opensuse-su-2026-21555-1",
      "released": "2026-08-12T01:09:28Z"
    },
    {
      "platform": "linux",
      "product": "kernel-obs-qa",
      "release": "opensuse-leap 16.0",
      "fixedVersion": "6.12.0-160000.37.1",
      "fix": "OPENSUSE-SU-2026:21555-1",
      "url": "https://patchblox.com/security/fix/linux/opensuse-su-2026-21555-1",
      "released": "2026-08-12T01:09:28Z"
    },
    {
      "platform": "linux",
      "product": "kernel-obs-qa",
      "release": "sles 16.0",
      "fixedVersion": "6.12.0-160000.37.1",
      "fix": "SUSE-SU-2026:23231-1",
      "url": "https://patchblox.com/security/fix/linux/suse-su-2026-23231-1",
      "released": "2026-08-11T21:26:34Z"
    },
    {
      "platform": "linux",
      "product": "kernel-rt",
      "release": "opensuse-leap 16.0",
      "fixedVersion": "6.12.0-160000.37.1",
      "fix": "OPENSUSE-SU-2026:21555-1",
      "url": "https://patchblox.com/security/fix/linux/opensuse-su-2026-21555-1",
      "released": "2026-08-12T01:09:28Z"
    },
    {
      "platform": "linux",
      "product": "kernel-source",
      "release": "opensuse-leap 16.0",
      "fixedVersion": "6.12.0-160000.37.1",
      "fix": "OPENSUSE-SU-2026:21555-1",
      "url": "https://patchblox.com/security/fix/linux/opensuse-su-2026-21555-1",
      "released": "2026-08-12T01:09:28Z"
    },
    {
      "platform": "linux",
      "product": "kernel-source",
      "release": "sles 16.0",
      "fixedVersion": "6.12.0-160000.37.1",
      "fix": "SUSE-SU-2026:23231-1",
      "url": "https://patchblox.com/security/fix/linux/suse-su-2026-23231-1",
      "released": "2026-08-11T21:26:34Z"
    },
    {
      "platform": "linux",
      "product": "kernel-syms",
      "release": "opensuse-leap 16.0",
      "fixedVersion": "6.12.0-160000.37.1",
      "fix": "OPENSUSE-SU-2026:21555-1",
      "url": "https://patchblox.com/security/fix/linux/opensuse-su-2026-21555-1",
      "released": "2026-08-12T01:09:28Z"
    },
    {
      "platform": "linux",
      "product": "kernel-syms",
      "release": "sles 16.0",
      "fixedVersion": "6.12.0-160000.37.1",
      "fix": "SUSE-SU-2026:23231-1",
      "url": "https://patchblox.com/security/fix/linux/suse-su-2026-23231-1",
      "released": "2026-08-11T21:26:34Z"
    },
    {
      "platform": "linux",
      "product": "kernel-zfcpdump",
      "release": "opensuse-leap 16.0",
      "fixedVersion": "6.12.0-160000.37.1",
      "fix": "OPENSUSE-SU-2026:21555-1",
      "url": "https://patchblox.com/security/fix/linux/opensuse-su-2026-21555-1",
      "released": "2026-08-12T01:09:28Z"
    },
    {
      "platform": "linux",
      "product": "kernel-zfcpdump",
      "release": "sles 16.0",
      "fixedVersion": "6.12.0-160000.37.1",
      "fix": "SUSE-SU-2026:23231-1",
      "url": "https://patchblox.com/security/fix/linux/suse-su-2026-23231-1",
      "released": "2026-08-11T21:26:34Z"
    },
    {
      "platform": "linux",
      "product": "kernel6.18",
      "release": "amzn 2023",
      "fixedVersion": "1:6.18.15-14.217.amzn2023",
      "fix": "ALAS2023-2026-1514",
      "url": "https://patchblox.com/security/fix/linux/alas2023-2026-1514",
      "released": "2026-03-30T09:00:00Z"
    },
    {
      "platform": "linux",
      "product": "kernel6.18-debuginfo",
      "release": "amzn 2023",
      "fixedVersion": "1:6.18.15-14.217.amzn2023",
      "fix": "ALAS2023-2026-1514",
      "url": "https://patchblox.com/security/fix/linux/alas2023-2026-1514",
      "released": "2026-03-30T09:00:00Z"
    },
    {
      "platform": "linux",
      "product": "kernel6.18-debuginfo-common-aarch64",
      "release": "amzn 2023",
      "fixedVersion": "1:6.18.15-14.217.amzn2023",
      "fix": "ALAS2023-2026-1514",
      "url": "https://patchblox.com/security/fix/linux/alas2023-2026-1514",
      "released": "2026-03-30T09:00:00Z"
    },
    {
      "platform": "linux",
      "product": "kernel6.18-debuginfo-common-x86_64",
      "release": "amzn 2023",
      "fixedVersion": "1:6.18.15-14.217.amzn2023",
      "fix": "ALAS2023-2026-1514",
      "url": "https://patchblox.com/security/fix/linux/alas2023-2026-1514",
      "released": "2026-03-30T09:00:00Z"
    },
    {
      "platform": "linux",
      "product": "kernel6.18-devel",
      "release": "amzn 2023",
      "fixedVersion": "1:6.18.15-14.217.amzn2023",
      "fix": "ALAS2023-2026-1514",
      "url": "https://patchblox.com/security/fix/linux/alas2023-2026-1514",
      "released": "2026-03-30T09:00:00Z"
    },
    {
      "platform": "linux",
      "product": "kernel6.18-headers",
      "release": "amzn 2023",
      "fixedVersion": "1:6.18.15-14.217.amzn2023",
      "fix": "ALAS2023-2026-1514",
      "url": "https://patchblox.com/security/fix/linux/alas2023-2026-1514",
      "released": "2026-03-30T09:00:00Z"
    },
    {
      "platform": "linux",
      "product": "kernel6.18-libbpf",
      "release": "amzn 2023",
      "fixedVersion": "1:6.18.15-14.217.amzn2023",
      "fix": "ALAS2023-2026-1514",
      "url": "https://patchblox.com/security/fix/linux/alas2023-2026-1514",
      "released": "2026-03-30T09:00:00Z"
    },
    {
      "platform": "linux",
      "product": "kernel6.18-libbpf-debuginfo",
      "release": "amzn 2023",
      "fixedVersion": "1:6.18.15-14.217.amzn2023",
      "fix": "ALAS2023-2026-1514",
      "url": "https://patchblox.com/security/fix/linux/alas2023-2026-1514",
      "released": "2026-03-30T09:00:00Z"
    },
    {
      "platform": "linux",
      "product": "kernel6.18-libbpf-devel",
      "release": "amzn 2023",
      "fixedVersion": "1:6.18.15-14.217.amzn2023",
      "fix": "ALAS2023-2026-1514",
      "url": "https://patchblox.com/security/fix/linux/alas2023-2026-1514",
      "released": "2026-03-30T09:00:00Z"
    },
    {
      "platform": "linux",
      "product": "kernel6.18-libbpf-static",
      "release": "amzn 2023",
      "fixedVersion": "1:6.18.15-14.217.amzn2023",
      "fix": "ALAS2023-2026-1514",
      "url": "https://patchblox.com/security/fix/linux/alas2023-2026-1514",
      "released": "2026-03-30T09:00:00Z"
    },
    {
      "platform": "linux",
      "product": "kernel6.18-modules-extra",
      "release": "amzn 2023",
      "fixedVersion": "1:6.18.15-14.217.amzn2023",
      "fix": "ALAS2023-2026-1514",
      "url": "https://patchblox.com/security/fix/linux/alas2023-2026-1514",
      "released": "2026-03-30T09:00:00Z"
    },
    {
      "platform": "linux",
      "product": "kernel6.18-modules-extra-common",
      "release": "amzn 2023",
      "fixedVersion": "1:6.18.15-14.217.amzn2023",
      "fix": "ALAS2023-2026-1514",
      "url": "https://patchblox.com/security/fix/linux/alas2023-2026-1514",
      "released": "2026-03-30T09:00:00Z"
    },
    {
      "platform": "linux",
      "product": "kernel6.18-tools",
      "release": "amzn 2023",
      "fixedVersion": "1:6.18.15-14.217.amzn2023",
      "fix": "ALAS2023-2026-1514",
      "url": "https://patchblox.com/security/fix/linux/alas2023-2026-1514",
      "released": "2026-03-30T09:00:00Z"
    },
    {
      "platform": "linux",
      "product": "kernel6.18-tools-debuginfo",
      "release": "amzn 2023",
      "fixedVersion": "1:6.18.15-14.217.amzn2023",
      "fix": "ALAS2023-2026-1514",
      "url": "https://patchblox.com/security/fix/linux/alas2023-2026-1514",
      "released": "2026-03-30T09:00:00Z"
    },
    {
      "platform": "linux",
      "product": "kernel6.18-tools-devel",
      "release": "amzn 2023",
      "fixedVersion": "1:6.18.15-14.217.amzn2023",
      "fix": "ALAS2023-2026-1514",
      "url": "https://patchblox.com/security/fix/linux/alas2023-2026-1514",
      "released": "2026-03-30T09:00:00Z"
    },
    {
      "platform": "linux",
      "product": "linux",
      "release": "Debian 13.5 (trixie)",
      "fixedVersion": "6.12.115-2",
      "fix": "DEBIAN-CVE-2026-23259",
      "url": "https://patchblox.com/security/fix/linux/debian-cve-2026-23259",
      "released": "2026-03-18T18:16:24Z"
    },
    {
      "platform": "linux",
      "product": "linux",
      "release": "Debian 14",
      "fixedVersion": "6.18.10-1",
      "fix": "DEBIAN-CVE-2026-23259",
      "url": "https://patchblox.com/security/fix/linux/debian-cve-2026-23259",
      "released": "2026-03-18T18:16:24Z"
    },
    {
      "platform": "linux",
      "product": "perf6.18",
      "release": "amzn 2023",
      "fixedVersion": "1:6.18.15-14.217.amzn2023",
      "fix": "ALAS2023-2026-1514",
      "url": "https://patchblox.com/security/fix/linux/alas2023-2026-1514",
      "released": "2026-03-30T09:00:00Z"
    },
    {
      "platform": "linux",
      "product": "perf6.18-debuginfo",
      "release": "amzn 2023",
      "fixedVersion": "1:6.18.15-14.217.amzn2023",
      "fix": "ALAS2023-2026-1514",
      "url": "https://patchblox.com/security/fix/linux/alas2023-2026-1514",
      "released": "2026-03-30T09:00:00Z"
    },
    {
      "platform": "linux",
      "product": "python3-perf6.18",
      "release": "amzn 2023",
      "fixedVersion": "1:6.18.15-14.217.amzn2023",
      "fix": "ALAS2023-2026-1514",
      "url": "https://patchblox.com/security/fix/linux/alas2023-2026-1514",
      "released": "2026-03-30T09:00:00Z"
    },
    {
      "platform": "linux",
      "product": "python3-perf6.18-debuginfo",
      "release": "amzn 2023",
      "fixedVersion": "1:6.18.15-14.217.amzn2023",
      "fix": "ALAS2023-2026-1514",
      "url": "https://patchblox.com/security/fix/linux/alas2023-2026-1514",
      "released": "2026-03-30T09:00:00Z"
    }
  ],
  "noFixYet": [],
  "dataAsOf": "2026-11-08T13:06:02Z",
  "attribution": {
    "text": "Data: Patchblox Patch Radar",
    "url": "https://patchblox.com/security/patch-radar",
    "terms": "https://patchblox.com/security/patch-radar/use-the-data"
  }
}