{
  "threat_severity" : "Moderate",
  "public_date" : "2026-04-03T00:00:00Z",
  "bugzilla" : {
    "description" : "kernel: wifi: wlcore: Fix a locking bug",
    "id" : "2454770",
    "url" : "https://bugzilla.redhat.com/show_bug.cgi?id=2454770"
  },
  "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-832",
  "details" : [ "In the Linux kernel, the following vulnerability has been resolved:\nwifi: wlcore: Fix a locking bug\nMake sure that wl->mutex is locked before it is unlocked. This has been\ndetected by the Clang thread-safety analyzer.", "A flaw was found in the Linux kernel's wlcore Wi-Fi driver. This vulnerability involves an improper handling of a locking mechanism, specifically the `wl->mutex`. This can lead to system instability or unexpected behavior. The issue was identified by a thread-safety analyzer." ],
  "statement" : "This affects systems using the wlcore stack (for example TI WiLink). Wireless drivers sit on the networking boundary; locking defects deserve conservative triage even when exploitation is uncertain. Impact is mainly reliability and possible local denial of service if the bad path is hit.",
  "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" : "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",
    "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-2026-23420\nhttps://nvd.nist.gov/vuln/detail/CVE-2026-23420\nhttps://lore.kernel.org/linux-cve-announce/2026040303-CVE-2026-23420-c110@gregkh/T" ],
  "name" : "CVE-2026-23420",
  "mitigation" : {
    "value" : "To mitigate this issue, prevent the wlcore or device-specific wlan module from being loaded if the hardware is not required. See https://access.redhat.com/solutions/41278 for instructions.",
    "lang" : "en:us"
  },
  "csaw" : false
}