{
  "threat_severity" : "Moderate",
  "public_date" : "2026-08-15T00:00:00Z",
  "bugzilla" : {
    "description" : "kernel: octeontx2-af: cn10k: restrict VF LMTLINE sharing to its own PF",
    "id" : "2516639",
    "url" : "https://bugzilla.redhat.com/show_bug.cgi?id=2516639"
  },
  "cvss3" : {
    "cvss3_base_score" : "7.0",
    "cvss3_scoring_vector" : "CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:H",
    "status" : "draft"
  },
  "cwe" : "CWE-1285",
  "details" : [ "In the Linux kernel, the following vulnerability has been resolved:\nocteontx2-af: cn10k: restrict VF LMTLINE sharing to its own PF\nrvu_mbox_handler_lmtst_tbl_setup() uses req->base_pcifunc as a direct\nindex into the LMT map table to read another function's LMTLINE\nphysical base address and copy it into the caller's own LMT map table\nentry. The mailbox dispatcher authenticates req->hdr.pcifunc from the\nIRQ source, but req->base_pcifunc is a separate payload field and is\nnot sanitized.\nReject the request with -EPERM when a VF caller's base_pcifunc is not a\nvalid function under its own PF. is_pf_func_valid() bounds the FUNC field\nto the PF's configured VF count, keeping the computed index inside the\ncaller's own slot block.", "A flaw was found in the Linux kernel component `octeontx2-af`. A local attacker with access to a Virtual Function (VF) could exploit an unsanitized input in the `rvu_mbox_handler_lmtst_tbl_setup()` function. This vulnerability allows the VF to read the physical base address of another function's LMTLINE, which could lead to information disclosure and unauthorized access to sensitive system memory." ],
  "package_state" : [ {
    "product_name" : "Red Hat Enterprise Linux 10",
    "fix_state" : "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" : "Affected",
    "package_name" : "kernel",
    "cpe" : "cpe:/o:redhat:enterprise_linux:9"
  }, {
    "product_name" : "Red Hat Enterprise Linux 9",
    "fix_state" : "Affected",
    "package_name" : "kernel-rt",
    "cpe" : "cpe:/o:redhat:enterprise_linux:9"
  } ],
  "references" : [ "https://www.cve.org/CVERecord?id=CVE-2026-72045\nhttps://nvd.nist.gov/vuln/detail/CVE-2026-72045\nhttps://lore.kernel.org/linux-cve-announce/2026081514-CVE-2026-72045-21ac@gregkh/T" ],
  "name" : "CVE-2026-72045",
  "csaw" : false
}