{
  "cveId": "CVE-2026-31464",
  "url": "https://patchblox.com/security/cve/CVE-2026-31464",
  "summary": "CVE-2026-31464 is fixed in 14 products on 1 platform, first by DEBIAN-CVE-2026-31464, released May 15, 2026. It is not reported as exploited. Patch Radar priority: High.",
  "title": "scsi: ibmvfc: Fix OOB access in ibmvfc_discover_targets_done()",
  "description": "In the Linux kernel, the following vulnerability has been resolved:  scsi: ibmvfc: Fix OOB access in ibmvfc_discover_targets_done()  A malicious or compromised VIO server can return a num_written value in the discover targets MAD response that exceeds max_targets. This value is stored directly in vhost-\u003Enum_targets without validation, and is then used as the loop bound in ibmvfc_alloc_targets() to index into disc_buf[], which is only allocated for max_targets entries. Indices at or beyond max_targets access kernel memory outside the DMA-coherent allocation.  The out-of-bounds data is subsequently embedded in Implicit Logout and PLOGI MADs that are sent back to the VIO server, leaking kernel memory.  Fix by clamping num_written to max_targets before storing it.",
  "published": "2026-04-22T14:16:42Z",
  "severity": "Important",
  "cvss": 8.1,
  "cvssVector": "CVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:H",
  "epss": 0.00275,
  "epssPercentile": 0.20001,
  "priority": "High",
  "priorityTier": 3,
  "exploited": false,
  "vendorExploited": false,
  "disclosed": false,
  "vendorAdvisory": "https://msrc.microsoft.com/update-guide/vulnerability/CVE-2026-31464",
  "fixes": [
    {
      "platform": "linux",
      "product": "kernel-64kb",
      "release": "sles 15.7",
      "fixedVersion": "6.4.0-150700.53.60.1",
      "fix": "SUSE-SU-2026:2482-1",
      "url": "https://patchblox.com/security/fix/linux/suse-su-2026-2482-1",
      "released": "2026-06-22T11:10:39Z"
    },
    {
      "platform": "linux",
      "product": "kernel-64kb",
      "release": "sles 16.0",
      "fixedVersion": "6.12.0-160000.34.1",
      "fix": "SUSE-SU-2026:22087-1",
      "url": "https://patchblox.com/security/fix/linux/suse-su-2026-22087-1",
      "released": "2026-06-05T17:10:52Z"
    },
    {
      "platform": "linux",
      "product": "kernel-azure",
      "release": "sles 15.7",
      "fixedVersion": "6.4.0-150700.53.60.1",
      "fix": "SUSE-SU-2026:2482-1",
      "url": "https://patchblox.com/security/fix/linux/suse-su-2026-2482-1",
      "released": "2026-06-22T11:10:39Z"
    },
    {
      "platform": "linux",
      "product": "kernel-azure",
      "release": "sles 16.0",
      "fixedVersion": "6.12.0-160000.34.1",
      "fix": "SUSE-SU-2026:22087-1",
      "url": "https://patchblox.com/security/fix/linux/suse-su-2026-22087-1",
      "released": "2026-06-05T17:10:52Z"
    },
    {
      "platform": "linux",
      "product": "kernel-default",
      "release": "sles 15.7",
      "fixedVersion": "6.4.0-150700.53.60.1",
      "fix": "SUSE-SU-2026:2482-1",
      "url": "https://patchblox.com/security/fix/linux/suse-su-2026-2482-1",
      "released": "2026-06-22T11:10:39Z"
    },
    {
      "platform": "linux",
      "product": "kernel-default",
      "release": "sles 16.0",
      "fixedVersion": "6.12.0-160000.34.1",
      "fix": "SUSE-SU-2026:22087-1",
      "url": "https://patchblox.com/security/fix/linux/suse-su-2026-22087-1",
      "released": "2026-06-05T17:10:52Z"
    },
    {
      "platform": "linux",
      "product": "kernel-default-base",
      "release": "sles 15.7",
      "fixedVersion": "6.4.0-150700.53.60.1.150700.17.35.4",
      "fix": "SUSE-SU-2026:2482-1",
      "url": "https://patchblox.com/security/fix/linux/suse-su-2026-2482-1",
      "released": "2026-06-22T11:10:39Z"
    },
    {
      "platform": "linux",
      "product": "kernel-default-base",
      "release": "sles 16.0",
      "fixedVersion": "6.12.0-160000.34.1.160000.2.15",
      "fix": "SUSE-SU-2026:22087-1",
      "url": "https://patchblox.com/security/fix/linux/suse-su-2026-22087-1",
      "released": "2026-06-05T17:10:52Z"
    },
    {
      "platform": "linux",
      "product": "kernel-docs",
      "release": "sles 15.7",
      "fixedVersion": "6.4.0-150700.53.60.1",
      "fix": "SUSE-SU-2026:2482-1",
      "url": "https://patchblox.com/security/fix/linux/suse-su-2026-2482-1",
      "released": "2026-06-22T11:10:39Z"
    },
    {
      "platform": "linux",
      "product": "kernel-docs",
      "release": "sles 16.0",
      "fixedVersion": "6.12.0-160000.34.1",
      "fix": "SUSE-SU-2026:22087-1",
      "url": "https://patchblox.com/security/fix/linux/suse-su-2026-22087-1",
      "released": "2026-06-05T17:10:52Z"
    },
    {
      "platform": "linux",
      "product": "kernel-kvmsmall",
      "release": "sles 16.0",
      "fixedVersion": "6.12.0-160000.34.1",
      "fix": "SUSE-SU-2026:22087-1",
      "url": "https://patchblox.com/security/fix/linux/suse-su-2026-22087-1",
      "released": "2026-06-05T17:10:52Z"
    },
    {
      "platform": "linux",
      "product": "kernel-livepatch-SLE15-SP7-RT_Update_16",
      "release": "sles 15.7",
      "fixedVersion": "1-150700.1.5.2",
      "fix": "SUSE-SU-2026:2591-1",
      "url": "https://patchblox.com/security/fix/linux/suse-su-2026-2591-1",
      "released": "2026-06-23T14:31:51Z"
    },
    {
      "platform": "linux",
      "product": "kernel-livepatch-SLE15-SP7_Update_16",
      "release": "sles 15.7",
      "fixedVersion": "1-150700.15.3.2",
      "fix": "SUSE-SU-2026:2482-1",
      "url": "https://patchblox.com/security/fix/linux/suse-su-2026-2482-1",
      "released": "2026-06-22T11:10:39Z"
    },
    {
      "platform": "linux",
      "product": "kernel-obs-build",
      "release": "sles 15.7",
      "fixedVersion": "6.4.0-150700.53.60.2",
      "fix": "SUSE-SU-2026:2482-1",
      "url": "https://patchblox.com/security/fix/linux/suse-su-2026-2482-1",
      "released": "2026-06-22T11:10:39Z"
    },
    {
      "platform": "linux",
      "product": "kernel-obs-qa",
      "release": "sles 16.0",
      "fixedVersion": "6.12.0-160000.34.1",
      "fix": "SUSE-SU-2026:22087-1",
      "url": "https://patchblox.com/security/fix/linux/suse-su-2026-22087-1",
      "released": "2026-06-05T17:10:52Z"
    },
    {
      "platform": "linux",
      "product": "kernel-source",
      "release": "sles 15.7",
      "fixedVersion": "6.4.0-150700.53.60.1",
      "fix": "SUSE-SU-2026:2482-1",
      "url": "https://patchblox.com/security/fix/linux/suse-su-2026-2482-1",
      "released": "2026-06-22T11:10:39Z"
    },
    {
      "platform": "linux",
      "product": "kernel-source",
      "release": "sles 16.0",
      "fixedVersion": "6.12.0-160000.34.1",
      "fix": "SUSE-SU-2026:22087-1",
      "url": "https://patchblox.com/security/fix/linux/suse-su-2026-22087-1",
      "released": "2026-06-05T17:10:52Z"
    },
    {
      "platform": "linux",
      "product": "kernel-syms",
      "release": "sles 15.7",
      "fixedVersion": "6.4.0-150700.53.60.1",
      "fix": "SUSE-SU-2026:2482-1",
      "url": "https://patchblox.com/security/fix/linux/suse-su-2026-2482-1",
      "released": "2026-06-22T11:10:39Z"
    },
    {
      "platform": "linux",
      "product": "kernel-syms",
      "release": "sles 16.0",
      "fixedVersion": "6.12.0-160000.34.1",
      "fix": "SUSE-SU-2026:22087-1",
      "url": "https://patchblox.com/security/fix/linux/suse-su-2026-22087-1",
      "released": "2026-06-05T17:10:52Z"
    },
    {
      "platform": "linux",
      "product": "kernel-zfcpdump",
      "release": "sles 15.7",
      "fixedVersion": "6.4.0-150700.53.60.1",
      "fix": "SUSE-SU-2026:2482-1",
      "url": "https://patchblox.com/security/fix/linux/suse-su-2026-2482-1",
      "released": "2026-06-22T11:10:39Z"
    },
    {
      "platform": "linux",
      "product": "kernel-zfcpdump",
      "release": "sles 16.0",
      "fixedVersion": "6.12.0-160000.34.1",
      "fix": "SUSE-SU-2026:22087-1",
      "url": "https://patchblox.com/security/fix/linux/suse-su-2026-22087-1",
      "released": "2026-06-05T17:10:52Z"
    },
    {
      "platform": "linux",
      "product": "linux",
      "release": "Debian 12.15 (bookworm)",
      "fixedVersion": "6.1.170-1",
      "fix": "DEBIAN-CVE-2026-31464",
      "url": "https://patchblox.com/security/fix/linux/debian-cve-2026-31464",
      "released": "2026-05-15T16:01:09Z"
    },
    {
      "platform": "linux",
      "product": "linux",
      "release": "Debian 13.5 (trixie)",
      "fixedVersion": "6.12.85-1",
      "fix": "DEBIAN-CVE-2026-31464",
      "url": "https://patchblox.com/security/fix/linux/debian-cve-2026-31464",
      "released": "2026-05-15T16:01:09Z"
    },
    {
      "platform": "linux",
      "product": "linux",
      "release": "Debian 14",
      "fixedVersion": "6.19.11-1",
      "fix": "DEBIAN-CVE-2026-31464",
      "url": "https://patchblox.com/security/fix/linux/debian-cve-2026-31464",
      "released": "2026-05-15T16:01:09Z"
    }
  ],
  "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"
  }
}