{
  "public_date" : "2025-09-05T00:00:00Z",
  "bugzilla" : {
    "description" : "kernel: drm/amd/display: fix a Null pointer dereference vulnerability",
    "id" : "2393494",
    "url" : "https://bugzilla.redhat.com/show_bug.cgi?id=2393494"
  },
  "details" : [ "In the Linux kernel, the following vulnerability has been resolved:\ndrm/amd/display: fix a Null pointer dereference vulnerability\n[Why]\nA null pointer dereference vulnerability exists in the AMD display driver's\n(DC module) cleanup function dc_destruct().\nWhen display control context (dc->ctx) construction fails\n(due to memory allocation failure), this pointer remains NULL.\nDuring subsequent error handling when dc_destruct() is called,\nthere's no NULL check before dereferencing the perf_trace member\n(dc->ctx->perf_trace), causing a kernel null pointer dereference crash.\n[How]\nCheck if dc->ctx is non-NULL before dereferencing.\n(Updated commit text and removed unnecessary error message)\n(cherry picked from commit 9dd8e2ba268c636c240a918e0a31e6feaee19404)" ],
  "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-2025-39705\nhttps://nvd.nist.gov/vuln/detail/CVE-2025-39705\nhttps://lore.kernel.org/linux-cve-announce/2025090549-CVE-2025-39705-6ac5@gregkh/T" ],
  "name" : "CVE-2025-39705",
  "csaw" : false
}