{
  "cveId": "CVE-2023-53075",
  "url": "https://patchblox.com/security/cve/CVE-2023-53075",
  "summary": "CVE-2023-53075 is fixed in 20 products on 1 platform, first by ALAS2023-2023-148, released March 30, 2023. It is not reported as exploited. Patch Radar priority: High.",
  "title": "linux: In the Linux kernel, the following vulnerability has been resolved:  ftrace: Fix invalid address access in lookup_rec...",
  "description": "In the Linux kernel, the following vulnerability has been resolved:  ftrace: Fix invalid address access in lookup_rec() when index is 0  KASAN reported follow problem:   BUG: KASAN: use-after-free in lookup_rec  Read of size 8 at addr ffff000199270ff0 by task modprobe  CPU: 2 Comm: modprobe  Call trace:   kasan_report   __asan_load8   lookup_rec   ftrace_location   arch_check_ftrace_location   check_kprobe_address_safe   register_kprobe  When checking pg-\u003Erecords[pg-\u003Eindex - 1].ip in lookup_rec(), it can get a pg which is newly added to ftrace_pages_start in ftrace_process_locs(). Before the first pg-\u003Eindex\u002B\u002B, index is 0 and accessing pg-\u003Erecords[-1].ip will cause this problem.  Don\u0027t check the ip when pg-\u003Eindex is 0.",
  "published": "2023-03-30T21:11:00Z",
  "severity": "high",
  "cvss": 7.8,
  "cvssVector": "CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H",
  "epss": 0.00206,
  "epssPercentile": 0.10716,
  "priority": "High",
  "priorityTier": 3,
  "exploited": false,
  "vendorExploited": false,
  "disclosed": false,
  "fixes": [
    {
      "platform": "linux",
      "product": "bpftool",
      "release": "amzn 2023",
      "fixedVersion": "6.1.21-1.45.amzn2023",
      "fix": "ALAS2023-2023-148",
      "url": "https://patchblox.com/security/fix/linux/alas2023-2023-148",
      "released": "2023-03-30T21:11:00Z"
    },
    {
      "platform": "linux",
      "product": "bpftool-debuginfo",
      "release": "amzn 2023",
      "fixedVersion": "6.1.21-1.45.amzn2023",
      "fix": "ALAS2023-2023-148",
      "url": "https://patchblox.com/security/fix/linux/alas2023-2023-148",
      "released": "2023-03-30T21:11:00Z"
    },
    {
      "platform": "linux",
      "product": "kernel",
      "release": "amzn 2023",
      "fixedVersion": "6.1.21-1.45.amzn2023",
      "fix": "ALAS2023-2023-148",
      "url": "https://patchblox.com/security/fix/linux/alas2023-2023-148",
      "released": "2023-03-30T21:11:00Z"
    },
    {
      "platform": "linux",
      "product": "kernel-debuginfo",
      "release": "amzn 2023",
      "fixedVersion": "6.1.21-1.45.amzn2023",
      "fix": "ALAS2023-2023-148",
      "url": "https://patchblox.com/security/fix/linux/alas2023-2023-148",
      "released": "2023-03-30T21:11:00Z"
    },
    {
      "platform": "linux",
      "product": "kernel-debuginfo-common-aarch64",
      "release": "amzn 2023",
      "fixedVersion": "6.1.21-1.45.amzn2023",
      "fix": "ALAS2023-2023-148",
      "url": "https://patchblox.com/security/fix/linux/alas2023-2023-148",
      "released": "2023-03-30T21:11:00Z"
    },
    {
      "platform": "linux",
      "product": "kernel-debuginfo-common-x86_64",
      "release": "amzn 2023",
      "fixedVersion": "6.1.21-1.45.amzn2023",
      "fix": "ALAS2023-2023-148",
      "url": "https://patchblox.com/security/fix/linux/alas2023-2023-148",
      "released": "2023-03-30T21:11:00Z"
    },
    {
      "platform": "linux",
      "product": "kernel-devel",
      "release": "amzn 2023",
      "fixedVersion": "6.1.21-1.45.amzn2023",
      "fix": "ALAS2023-2023-148",
      "url": "https://patchblox.com/security/fix/linux/alas2023-2023-148",
      "released": "2023-03-30T21:11:00Z"
    },
    {
      "platform": "linux",
      "product": "kernel-headers",
      "release": "amzn 2023",
      "fixedVersion": "6.1.21-1.45.amzn2023",
      "fix": "ALAS2023-2023-148",
      "url": "https://patchblox.com/security/fix/linux/alas2023-2023-148",
      "released": "2023-03-30T21:11:00Z"
    },
    {
      "platform": "linux",
      "product": "kernel-libbpf",
      "release": "amzn 2023",
      "fixedVersion": "6.1.21-1.45.amzn2023",
      "fix": "ALAS2023-2023-148",
      "url": "https://patchblox.com/security/fix/linux/alas2023-2023-148",
      "released": "2023-03-30T21:11:00Z"
    },
    {
      "platform": "linux",
      "product": "kernel-libbpf-devel",
      "release": "amzn 2023",
      "fixedVersion": "6.1.21-1.45.amzn2023",
      "fix": "ALAS2023-2023-148",
      "url": "https://patchblox.com/security/fix/linux/alas2023-2023-148",
      "released": "2023-03-30T21:11:00Z"
    },
    {
      "platform": "linux",
      "product": "kernel-libbpf-static",
      "release": "amzn 2023",
      "fixedVersion": "6.1.21-1.45.amzn2023",
      "fix": "ALAS2023-2023-148",
      "url": "https://patchblox.com/security/fix/linux/alas2023-2023-148",
      "released": "2023-03-30T21:11:00Z"
    },
    {
      "platform": "linux",
      "product": "kernel-livepatch-6.1.21-1.45",
      "release": "amzn 2023",
      "fixedVersion": "1.0-0.amzn2023",
      "fix": "ALAS2023-2023-148",
      "url": "https://patchblox.com/security/fix/linux/alas2023-2023-148",
      "released": "2023-03-30T21:11:00Z"
    },
    {
      "platform": "linux",
      "product": "kernel-tools",
      "release": "amzn 2023",
      "fixedVersion": "6.1.21-1.45.amzn2023",
      "fix": "ALAS2023-2023-148",
      "url": "https://patchblox.com/security/fix/linux/alas2023-2023-148",
      "released": "2023-03-30T21:11:00Z"
    },
    {
      "platform": "linux",
      "product": "kernel-tools-debuginfo",
      "release": "amzn 2023",
      "fixedVersion": "6.1.21-1.45.amzn2023",
      "fix": "ALAS2023-2023-148",
      "url": "https://patchblox.com/security/fix/linux/alas2023-2023-148",
      "released": "2023-03-30T21:11:00Z"
    },
    {
      "platform": "linux",
      "product": "kernel-tools-devel",
      "release": "amzn 2023",
      "fixedVersion": "6.1.21-1.45.amzn2023",
      "fix": "ALAS2023-2023-148",
      "url": "https://patchblox.com/security/fix/linux/alas2023-2023-148",
      "released": "2023-03-30T21:11:00Z"
    },
    {
      "platform": "linux",
      "product": "linux",
      "release": "Debian 12.15 (bookworm)",
      "fixedVersion": "6.1.25-1",
      "fix": "DEBIAN-CVE-2023-53075",
      "url": "https://patchblox.com/security/fix/linux/debian-cve-2023-53075",
      "released": "2025-05-02T16:15:26Z"
    },
    {
      "platform": "linux",
      "product": "linux",
      "release": "Debian 13.5 (trixie)",
      "fixedVersion": "6.1.25-1",
      "fix": "DEBIAN-CVE-2023-53075",
      "url": "https://patchblox.com/security/fix/linux/debian-cve-2023-53075",
      "released": "2025-05-02T16:15:26Z"
    },
    {
      "platform": "linux",
      "product": "linux",
      "release": "Debian 14",
      "fixedVersion": "6.1.25-1",
      "fix": "DEBIAN-CVE-2023-53075",
      "url": "https://patchblox.com/security/fix/linux/debian-cve-2023-53075",
      "released": "2025-05-02T16:15:26Z"
    },
    {
      "platform": "linux",
      "product": "perf",
      "release": "amzn 2023",
      "fixedVersion": "6.1.21-1.45.amzn2023",
      "fix": "ALAS2023-2023-148",
      "url": "https://patchblox.com/security/fix/linux/alas2023-2023-148",
      "released": "2023-03-30T21:11:00Z"
    },
    {
      "platform": "linux",
      "product": "perf-debuginfo",
      "release": "amzn 2023",
      "fixedVersion": "6.1.21-1.45.amzn2023",
      "fix": "ALAS2023-2023-148",
      "url": "https://patchblox.com/security/fix/linux/alas2023-2023-148",
      "released": "2023-03-30T21:11:00Z"
    },
    {
      "platform": "linux",
      "product": "python3-perf",
      "release": "amzn 2023",
      "fixedVersion": "6.1.21-1.45.amzn2023",
      "fix": "ALAS2023-2023-148",
      "url": "https://patchblox.com/security/fix/linux/alas2023-2023-148",
      "released": "2023-03-30T21:11:00Z"
    },
    {
      "platform": "linux",
      "product": "python3-perf-debuginfo",
      "release": "amzn 2023",
      "fixedVersion": "6.1.21-1.45.amzn2023",
      "fix": "ALAS2023-2023-148",
      "url": "https://patchblox.com/security/fix/linux/alas2023-2023-148",
      "released": "2023-03-30T21:11:00Z"
    }
  ],
  "noFixYet": [],
  "dataAsOf": "2026-11-09T13:31:49Z",
  "attribution": {
    "text": "Data: Patchblox Patch Radar",
    "url": "https://patchblox.com/security/patch-radar",
    "terms": "https://patchblox.com/security/patch-radar/use-the-data"
  }
}