{
  "threat_severity" : "Moderate",
  "public_date" : "2026-04-22T00:00:00Z",
  "bugzilla" : {
    "description" : "kernel: RDMA/irdma: Initialize free_qp completion before using it",
    "id" : "2460663",
    "url" : "https://bugzilla.redhat.com/show_bug.cgi?id=2460663"
  },
  "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-908",
  "details" : [ "In the Linux kernel, the following vulnerability has been resolved:\nRDMA/irdma: Initialize free_qp completion before using it\nIn irdma_create_qp, if ib_copy_to_udata fails, it will call\nirdma_destroy_qp to clean up which will attempt to wait on\nthe free_qp completion, which is not initialized yet. Fix this\nby initializing the completion before the ib_copy_to_udata call.", "A flaw was found in the Linux kernel's RDMA (Remote Direct Memory Access) irdma driver. This vulnerability occurs when the `free_qp` completion is not properly initialized before being used during the cleanup process in `irdma_destroy_qp`, specifically if the `ib_copy_to_udata` function fails. An attacker could potentially trigger this uninitialized wait, leading to system instability or a denial of service (DoS)." ],
  "statement" : "Upstream initializes the `free_qp` completion before any failure path can invoke `irdma_destroy_qp()`. Red Hat treats this as a local RDMA driver robustness issue on Intel Ethernet RDMA hardware. Customers should update kernels; optional mitigation is unloading `irdma` where unused.",
  "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" : "Not affected",
    "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-2026-31492\nhttps://nvd.nist.gov/vuln/detail/CVE-2026-31492\nhttps://lore.kernel.org/linux-cve-announce/2026042202-CVE-2026-31492-2f6c@gregkh/T" ],
  "name" : "CVE-2026-31492",
  "mitigation" : {
    "value" : "To mitigate this issue, prevent the irdma module from being loaded. See https://access.redhat.com/solutions/41278 for instructions.",
    "lang" : "en:us"
  },
  "csaw" : false
}