{
  "threat_severity" : "Low",
  "public_date" : "2026-05-28T00:00:00Z",
  "bugzilla" : {
    "description" : "kernel: md/raid10: fix divide-by-zero in setup_geo() with zero far_copies",
    "id" : "2482610",
    "url" : "https://bugzilla.redhat.com/show_bug.cgi?id=2482610"
  },
  "cvss3" : {
    "cvss3_base_score" : "5.5",
    "cvss3_scoring_vector" : "CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H",
    "status" : "draft"
  },
  "cwe" : "CWE-369",
  "details" : [ "In the Linux kernel, the following vulnerability has been resolved:\nmd/raid10: fix divide-by-zero in setup_geo() with zero far_copies\nsetup_geo() extracts near_copies (nc) and far_copies (fc) from the\nuser-provided layout parameter without checking for zero. When fc=0\nwith the \"improved\" far set layout selected, 'geo->far_set_size =\ndisks / fc' triggers a divide-by-zero.\nValidate nc and fc immediately after extraction, returning -1 if\neither is zero.", "A flaw was found in the Linux kernel's md/raid10 module. This vulnerability allows a local user to trigger a divide-by-zero error within the `setup_geo()` function by supplying a malformed layout parameter where the `far_copies` value is set to zero. Successful exploitation of this flaw can lead to a system crash, causing a Denial of Service (DoS)." ],
  "package_state" : [ {
    "product_name" : "Red Hat Enterprise Linux 10",
    "fix_state" : "Fix deferred",
    "package_name" : "kernel",
    "cpe" : "cpe:/o:redhat:enterprise_linux:10"
  }, {
    "product_name" : "Red Hat Enterprise Linux 6",
    "fix_state" : "Out of support scope",
    "package_name" : "kernel",
    "cpe" : "cpe:/o:redhat:enterprise_linux:6"
  }, {
    "product_name" : "Red Hat Enterprise Linux 7",
    "fix_state" : "Fix deferred",
    "package_name" : "kernel",
    "cpe" : "cpe:/o:redhat:enterprise_linux:7"
  }, {
    "product_name" : "Red Hat Enterprise Linux 7",
    "fix_state" : "Fix deferred",
    "package_name" : "kernel-rt",
    "cpe" : "cpe:/o:redhat:enterprise_linux:7"
  }, {
    "product_name" : "Red Hat Enterprise Linux 8",
    "fix_state" : "Fix deferred",
    "package_name" : "kernel",
    "cpe" : "cpe:/o:redhat:enterprise_linux:8"
  }, {
    "product_name" : "Red Hat Enterprise Linux 8",
    "fix_state" : "Fix deferred",
    "package_name" : "kernel-rt",
    "cpe" : "cpe:/o:redhat:enterprise_linux:8"
  }, {
    "product_name" : "Red Hat Enterprise Linux 9",
    "fix_state" : "Fix deferred",
    "package_name" : "kernel",
    "cpe" : "cpe:/o:redhat:enterprise_linux:9"
  }, {
    "product_name" : "Red Hat Enterprise Linux 9",
    "fix_state" : "Fix deferred",
    "package_name" : "kernel-rt",
    "cpe" : "cpe:/o:redhat:enterprise_linux:9"
  } ],
  "references" : [ "https://www.cve.org/CVERecord?id=CVE-2026-46161\nhttps://nvd.nist.gov/vuln/detail/CVE-2026-46161\nhttps://lore.kernel.org/linux-cve-announce/2026052824-CVE-2026-46161-b5c5@gregkh/T" ],
  "name" : "CVE-2026-46161",
  "csaw" : false
}