{
  "threat_severity" : "Moderate",
  "public_date" : "2025-08-19T00:00:00Z",
  "bugzilla" : {
    "description" : "kernel: net/sched: mqprio: fix stack out-of-bounds write in tc entry parsing",
    "id" : "2389507",
    "url" : "https://bugzilla.redhat.com/show_bug.cgi?id=2389507"
  },
  "cvss3" : {
    "cvss3_base_score" : "4.7",
    "cvss3_scoring_vector" : "CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:N/I:N/A:H",
    "status" : "verified"
  },
  "cwe" : "CWE-129",
  "details" : [ "In the Linux kernel, the following vulnerability has been resolved:\nnet/sched: mqprio: fix stack out-of-bounds write in tc entry parsing\nTCA_MQPRIO_TC_ENTRY_INDEX is validated using\nNLA_POLICY_MAX(NLA_U32, TC_QOPT_MAX_QUEUE), which allows the value\nTC_QOPT_MAX_QUEUE (16). This leads to a 4-byte out-of-bounds stack\nwrite in the fp[] array, which only has room for 16 elements (0–15).\nFix this by changing the policy to allow only up to TC_QOPT_MAX_QUEUE - 1." ],
  "statement" : "A bounds-check bug in mqprio TC entry parsing allows a 4-byte stack out-of-bounds write when TCA_MQPRIO_TC_ENTRY_INDEX equals 16, causing kernel crashes. Exploitation requires local netlink access with CAP_NET_ADMIN (often within the relevant network namespace). No practical confidentiality or integrity impact is evident due to tight value constraints enforced by the netlink policy.",
  "affected_release" : [ {
    "product_name" : "Red Hat Enterprise Linux 10",
    "release_date" : "2026-02-02T00:00:00Z",
    "advisory" : "RHSA-2026:1690",
    "cpe" : "cpe:/o:redhat:enterprise_linux:10.1",
    "package" : "kernel-0:6.12.0-124.31.1.el10_1"
  }, {
    "product_name" : "Red Hat Enterprise Linux 10.0 Extended Update Support",
    "release_date" : "2026-02-02T00:00:00Z",
    "advisory" : "RHSA-2026:1727",
    "cpe" : "cpe:/o:redhat:enterprise_linux_eus:10.0",
    "package" : "kernel-0:6.12.0-55.58.1.el10_0"
  }, {
    "product_name" : "Red Hat Enterprise Linux 9",
    "release_date" : "2026-02-02T00:00:00Z",
    "advisory" : "RHSA-2026:1617",
    "cpe" : "cpe:/a:redhat:enterprise_linux:9",
    "package" : "kernel-0:5.14.0-611.27.1.el9_7"
  }, {
    "product_name" : "Red Hat Enterprise Linux 9",
    "release_date" : "2026-02-02T00:00:00Z",
    "advisory" : "RHSA-2026:1617",
    "cpe" : "cpe:/o:redhat:enterprise_linux:9",
    "package" : "kernel-0:5.14.0-611.27.1.el9_7"
  }, {
    "product_name" : "Red Hat Enterprise Linux 9.4 Extended Update Support",
    "release_date" : "2026-02-12T00:00:00Z",
    "advisory" : "RHSA-2026:2594",
    "cpe" : "cpe:/a:redhat:rhel_eus:9.4",
    "package" : "kernel-0:5.14.0-427.110.1.el9_4"
  }, {
    "product_name" : "Red Hat Enterprise Linux 9.6 Extended Update Support",
    "release_date" : "2026-02-09T00:00:00Z",
    "advisory" : "RHSA-2026:2352",
    "cpe" : "cpe:/a:redhat:rhel_eus:9.6",
    "package" : "kernel-0:5.14.0-570.86.1.el9_6"
  } ],
  "package_state" : [ {
    "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" : "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-rt",
    "cpe" : "cpe:/o:redhat:enterprise_linux:9"
  } ],
  "references" : [ "https://www.cve.org/CVERecord?id=CVE-2025-38568\nhttps://nvd.nist.gov/vuln/detail/CVE-2025-38568\nhttps://lore.kernel.org/linux-cve-announce/2025081909-CVE-2025-38568-7cd9@gregkh/T" ],
  "name" : "CVE-2025-38568",
  "csaw" : false
}