{
  "threat_severity" : "Moderate",
  "public_date" : "2026-01-23T00:00:00Z",
  "bugzilla" : {
    "description" : "kernel: libceph: prevent potential out-of-bounds reads in handle_auth_done()",
    "id" : "2432389",
    "url" : "https://bugzilla.redhat.com/show_bug.cgi?id=2432389"
  },
  "cvss3" : {
    "cvss3_base_score" : "7.1",
    "cvss3_scoring_vector" : "CVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:H",
    "status" : "verified"
  },
  "details" : [ "In the Linux kernel, the following vulnerability has been resolved:\nlibceph: prevent potential out-of-bounds reads in handle_auth_done()\nPerform an explicit bounds check on payload_len to avoid a possible\nout-of-bounds access in the callout.\n[ idryomov: changelog ]" ],
  "statement" : "An out-of-bounds read can occur in libceph messenger v2 during AUTH_DONE handling when payload_len is taken from the wire but the message buffer is not validated to actually contain that many bytes. A malicious or compromised Ceph peer can send a truncated message to reliably crash the kernel (network-triggered DoS).",
  "affected_release" : [ {
    "product_name" : "Red Hat Enterprise Linux 8",
    "release_date" : "2026-06-10T00:00:00Z",
    "advisory" : "RHSA-2026:25120",
    "cpe" : "cpe:/a:redhat:enterprise_linux:8::nfv",
    "package" : "kernel-rt-0:4.18.0-553.132.1.rt7.473.el8_10"
  }, {
    "product_name" : "Red Hat Enterprise Linux 8",
    "release_date" : "2026-06-10T00:00:00Z",
    "advisory" : "RHSA-2026:25121",
    "cpe" : "cpe:/o:redhat:enterprise_linux:8",
    "package" : "kernel-0:4.18.0-553.132.1.el8_10"
  }, {
    "product_name" : "Red Hat Enterprise Linux 8.8 Telecommunications Update Service",
    "release_date" : "2026-06-17T00:00:00Z",
    "advisory" : "RHSA-2026:26563",
    "cpe" : "cpe:/o:redhat:rhel_tus:8.8",
    "package" : "kernel-0:4.18.0-477.147.1.el8_8"
  }, {
    "product_name" : "Red Hat Enterprise Linux 8.8 Update Services for SAP Solutions",
    "release_date" : "2026-06-17T00:00:00Z",
    "advisory" : "RHSA-2026:26563",
    "cpe" : "cpe:/o:redhat:rhel_e4s:8.8",
    "package" : "kernel-0:4.18.0-477.147.1.el8_8"
  }, {
    "product_name" : "Red Hat Enterprise Linux 9",
    "release_date" : "2026-05-20T00:00:00Z",
    "advisory" : "RHSA-2026:19568",
    "cpe" : "cpe:/a:redhat:enterprise_linux:9",
    "package" : "kernel-0:5.14.0-687.10.1.el9_8"
  }, {
    "product_name" : "Red Hat Enterprise Linux 9",
    "release_date" : "2026-05-20T00:00:00Z",
    "advisory" : "RHSA-2026:19568",
    "cpe" : "cpe:/o:redhat:enterprise_linux:9",
    "package" : "kernel-0:5.14.0-687.10.1.el9_8"
  }, {
    "product_name" : "Red Hat Enterprise Linux 9.2 Update Services for SAP Solutions",
    "release_date" : "2026-06-17T00:00:00Z",
    "advisory" : "RHSA-2026:26515",
    "cpe" : "cpe:/a:redhat:rhel_e4s:9.2",
    "package" : "kernel-0:5.14.0-284.176.1.el9_2"
  }, {
    "product_name" : "Red Hat Enterprise Linux 9.2 Update Services for SAP Solutions",
    "release_date" : "2026-06-17T00:00:00Z",
    "advisory" : "RHSA-2026:26462",
    "cpe" : "cpe:/a:redhat:rhel_e4s:9.2::nfv",
    "package" : "kernel-rt-0:5.14.0-284.176.1.rt14.461.el9_2"
  }, {
    "product_name" : "Red Hat Enterprise Linux 9.4 Update Services for SAP Solutions",
    "release_date" : "2026-06-22T00:00:00Z",
    "advisory" : "RHSA-2026:27735",
    "cpe" : "cpe:/a:redhat:rhel_e4s:9.4",
    "package" : "kernel-0:5.14.0-427.132.1.el9_4"
  }, {
    "product_name" : "Red Hat Enterprise Linux 9.6 Extended Update Support",
    "release_date" : "2026-06-11T00:00:00Z",
    "advisory" : "RHSA-2026:25218",
    "cpe" : "cpe:/a:redhat:rhel_eus:9.6",
    "package" : "kernel-0:5.14.0-570.120.1.el9_6"
  } ],
  "package_state" : [ {
    "product_name" : "Red Hat Enterprise Linux 10",
    "fix_state" : "Affected",
    "package_name" : "kernel",
    "cpe" : "cpe:/o:redhat:enterprise_linux:10"
  }, {
    "product_name" : "Red Hat Enterprise Linux 6",
    "fix_state" : "Not affected",
    "package_name" : "kernel",
    "cpe" : "cpe:/o:redhat:enterprise_linux:6"
  }, {
    "product_name" : "Red Hat Enterprise Linux 7",
    "fix_state" : "Not affected",
    "package_name" : "kernel",
    "cpe" : "cpe:/o:redhat:enterprise_linux:7"
  }, {
    "product_name" : "Red Hat Enterprise Linux 7",
    "fix_state" : "Not affected",
    "package_name" : "kernel-rt",
    "cpe" : "cpe:/o:redhat:enterprise_linux:7"
  }, {
    "product_name" : "Red Hat Enterprise Linux 9",
    "fix_state" : "Affected",
    "package_name" : "kernel-rt",
    "cpe" : "cpe:/o:redhat:enterprise_linux:9"
  } ],
  "references" : [ "https://www.cve.org/CVERecord?id=CVE-2026-22984\nhttps://nvd.nist.gov/vuln/detail/CVE-2026-22984\nhttps://lore.kernel.org/linux-cve-announce/2026012349-CVE-2026-22984-001c@gregkh/T" ],
  "name" : "CVE-2026-22984",
  "mitigation" : {
    "value" : "If Ceph not being used, then possible to disable it. To mitigate this issue, prevent module libceph from being loaded. Please see https://access.redhat.com/solutions/41278 for how to blacklist a kernel module to prevent it from loading automatically.",
    "lang" : "en:us"
  },
  "csaw" : false
}