{
  "threat_severity" : "Low",
  "public_date" : "2026-05-27T00:00:00Z",
  "bugzilla" : {
    "description" : "kernel: HID: intel-ish-hid: fix NULL-ptr-deref in ishtp_bus_remove_all_clients",
    "id" : "2482144",
    "url" : "https://bugzilla.redhat.com/show_bug.cgi?id=2482144"
  },
  "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-476",
  "details" : [ "In the Linux kernel, the following vulnerability has been resolved:\nHID: intel-ish-hid: fix NULL-ptr-deref in ishtp_bus_remove_all_clients\nDuring a warm reset flow, the cl->device pointer may be NULL if the\nreset occurs while clients are still being enumerated. Accessing\ncl->device->reference_count without a NULL check leads to a kernel panic.\nThis issue was identified during multi-unit warm reboot stress clycles.\nAdd a defensive NULL check for cl->device to ensure stability under\nsuch intensive testing conditions.\nKASAN: null-ptr-deref in range [0000000000000000-0000000000000007]\nWorkqueue: ish_fw_update_wq fw_reset_work_fn\nCall Trace:\nishtp_bus_remove_all_clients+0xbe/0x130 [intel_ishtp]\nishtp_reset_handler+0x85/0x1a0 [intel_ishtp]\nfw_reset_work_fn+0x8a/0xc0 [intel_ish_ipc]", "A flaw was found in the Linux kernel's Intel Integrated Sensor Hub (ISH) HID driver. During a warm reset, a NULL-pointer dereference can occur if clients are still being enumerated. This can lead to a kernel panic, causing the system to become unstable or unavailable, resulting in a Denial of Service (DoS)." ],
  "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-2026-45877\nhttps://nvd.nist.gov/vuln/detail/CVE-2026-45877\nhttps://lore.kernel.org/linux-cve-announce/2026052714-CVE-2026-45877-f416@gregkh/T" ],
  "name" : "CVE-2026-45877",
  "csaw" : false
}