{
  "affected": [
    {
      "ecosystem_specific": {
        "urgency": "not yet assigned"
      },
      "package": {
        "ecosystem": "Debian:14",
        "name": "linux"
      },
      "ranges": [
        {
          "events": [
            {
              "introduced": "0"
            },
            {
              "fixed": "7.2.6-1"
            }
          ],
          "type": "ECOSYSTEM"
        }
      ]
    }
  ],
  "details": "In the Linux kernel, the following vulnerability has been resolved:  clk: eswin: Zero-initialize stack-allocated clk_init_data  eswin_clk_register_pll() and eswin_register_clkdiv() declare a struct clk_init_data on the stack and only initialize some of its fields (parent_data respectively parent_hws). clk_core_populate_parent_map() checks parent_names first and parent_data second before falling back to parent_hws, so leftover stack garbage in the uninitialized fields hijacks parent resolution and the clk core dereferences a bogus pointer:    Unable to handle kernel NULL pointer dereference at virtual address 000000000000000c   Oops [#1]   epc : __clk_register+0x31a/0x7f0   [\u003cffffffff805dc774\u003e] __clk_register+0x31a/0x7f0   [\u003cffffffff805dcd76\u003e] devm_clk_hw_register+0x2a/0x94   [\u003cffffffff805e319a\u003e] eswin_register_clkdiv+0x80/0xd0   [\u003cffffffff805e34a0\u003e] eswin_clk_register_clks+0x162/0x1a0   [\u003cffffffff805e3736\u003e] eic7700_clk_probe+0x146/0x180   [\u003cffffffff8065d23c\u003e] platform_probe+0x3c/0x7a  Observed on EIC7700 hardware (with the driver backported to a 6.17 tree); whether the bug triggers depends entirely on what the stack happens to contain when the registration helpers run.  Zero-initialize both structures.",
  "id": "DEBIAN-CVE-2026-93263",
  "modified": "2026-09-25T04:47:26.516208938Z",
  "published": "2026-09-24T16:17:23.067Z",
  "references": [
    {
      "type": "ADVISORY",
      "url": "https://security-tracker.debian.org/tracker/CVE-2026-93263"
    }
  ],
  "upstream": [
    "CVE-2026-93263"
  ]
}