{
  "public_date" : "2026-04-03T00:00:00Z",
  "bugzilla" : {
    "description" : "kernel: drm/amdgpu: Limit BO list entry count to prevent resource exhaustion",
    "id" : "2454848",
    "url" : "https://bugzilla.redhat.com/show_bug.cgi?id=2454848"
  },
  "cwe" : "CWE-770",
  "details" : [ "In the Linux kernel, the following vulnerability has been resolved:\ndrm/amdgpu: Limit BO list entry count to prevent resource exhaustion\nUserspace can pass an arbitrary number of BO list entries via the\nbo_number field. Although the previous multiplication overflow check\nprevents out-of-bounds allocation, a large number of entries could still\ncause excessive memory allocation (up to potentially gigabytes) and\nunnecessarily long list processing times.\nIntroduce a hard limit of 128k entries per BO list, which is more than\nsufficient for any realistic use case (e.g., a single list containing all\nbuffers in a large scene). This prevents memory exhaustion attacks and\nensures predictable performance.\nReturn -EINVAL if the requested entry count exceeds the limit\n(cherry picked from commit 688b87d39e0aa8135105b40dc167d74b5ada5332)", "A flaw was found in the Linux kernel's drm/amdgpu component. A local user can exploit this vulnerability by providing an excessively large number of Buffer Object (BO) list entries through the bo_number field. This can lead to excessive memory allocation and prolonged processing times, potentially causing a memory exhaustion attack and resulting in a Denial of Service (DoS) for the system." ],
  "package_state" : [ {
    "product_name" : "Red Hat Enterprise Linux 10",
    "fix_state" : "Not 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 8",
    "fix_state" : "Not affected",
    "package_name" : "kernel",
    "cpe" : "cpe:/o:redhat:enterprise_linux:8"
  }, {
    "product_name" : "Red Hat Enterprise Linux 8",
    "fix_state" : "Not affected",
    "package_name" : "kernel-rt",
    "cpe" : "cpe:/o:redhat:enterprise_linux:8"
  }, {
    "product_name" : "Red Hat Enterprise Linux 9",
    "fix_state" : "Not affected",
    "package_name" : "kernel",
    "cpe" : "cpe:/o:redhat:enterprise_linux:9"
  }, {
    "product_name" : "Red Hat Enterprise Linux 9",
    "fix_state" : "Not affected",
    "package_name" : "kernel-rt",
    "cpe" : "cpe:/o:redhat:enterprise_linux:9"
  } ],
  "references" : [ "https://www.cve.org/CVERecord?id=CVE-2026-23468\nhttps://nvd.nist.gov/vuln/detail/CVE-2026-23468\nhttps://lore.kernel.org/linux-cve-announce/2026040321-CVE-2026-23468-8be9@gregkh/T" ],
  "name" : "CVE-2026-23468",
  "csaw" : false
}