{
  "cveId": "CVE-2023-53694",
  "url": "https://patchblox.com/security/cve/CVE-2023-53694",
  "summary": "CVE-2023-53694 is fixed in linux on 1 platform, first by DEBIAN-CVE-2023-53694, released October 22, 2025. It is not reported as exploited. Patch Radar priority: Routine.",
  "title": "linux: In the Linux kernel, the following vulnerability has been resolved:  riscv: ftrace: Fixup panic by disabling preempti...",
  "description": "In the Linux kernel, the following vulnerability has been resolved:  riscv: ftrace: Fixup panic by disabling preemption  In RISCV, we must use an AUIPC \u002B JALR pair to encode an immediate, forming a jump that jumps to an address over 4K. This may cause errors if we want to enable kernel preemption and remove dependency from patching code with stop_machine(). For example, if a task was switched out on auipc. And, if we changed the ftrace function before it was switched back, then it would jump to an address that has updated 11:0 bits mixing with previous XLEN:12 part.  p: patched area performed by dynamic ftrace ftrace_prologue: p|      REG_S   ra, -SZREG(sp) p|      auipc   ra, 0x? ------------\u003E preempted \t\t\t\t\t... \t\t\t\tchange ftrace function \t\t\t\t\t... p|      jalr    -?(ra) \u003C------------- switched back p|      REG_L   ra, -SZREG(sp) func: \txxx \tret",
  "published": "2025-10-22T14:15:43Z",
  "severity": "",
  "epss": 0.00211,
  "epssPercentile": 0.11465,
  "priority": "Routine",
  "priorityTier": 4,
  "exploited": false,
  "vendorExploited": false,
  "disclosed": false,
  "fixes": [
    {
      "platform": "linux",
      "product": "linux",
      "release": "Debian 12.15 (bookworm)",
      "fixedVersion": "6.1.25-1",
      "fix": "DEBIAN-CVE-2023-53694",
      "url": "https://patchblox.com/security/fix/linux/debian-cve-2023-53694",
      "released": "2025-10-22T14:15:43Z"
    },
    {
      "platform": "linux",
      "product": "linux",
      "release": "Debian 13.5 (trixie)",
      "fixedVersion": "6.1.25-1",
      "fix": "DEBIAN-CVE-2023-53694",
      "url": "https://patchblox.com/security/fix/linux/debian-cve-2023-53694",
      "released": "2025-10-22T14:15:43Z"
    },
    {
      "platform": "linux",
      "product": "linux",
      "release": "Debian 14",
      "fixedVersion": "6.1.25-1",
      "fix": "DEBIAN-CVE-2023-53694",
      "url": "https://patchblox.com/security/fix/linux/debian-cve-2023-53694",
      "released": "2025-10-22T14:15:43Z"
    }
  ],
  "noFixYet": [],
  "dataAsOf": "2026-11-08T19:12:23Z",
  "attribution": {
    "text": "Data: Patchblox Patch Radar",
    "url": "https://patchblox.com/security/patch-radar",
    "terms": "https://patchblox.com/security/patch-radar/use-the-data"
  }
}