{
  "cveId": "CVE-2023-53271",
  "url": "https://patchblox.com/security/cve/CVE-2023-53271",
  "summary": "CVE-2023-53271 is fixed in linux on 1 platform, first by DEBIAN-CVE-2023-53271, released September 16, 2025. It is not reported as exploited. Patch Radar priority: Routine.",
  "title": "linux: In the Linux kernel, the following vulnerability has been resolved:  ubi: Fix unreferenced object reported by kmemlea...",
  "description": "In the Linux kernel, the following vulnerability has been resolved:  ubi: Fix unreferenced object reported by kmemleak in ubi_resize_volume()  There is a memory leaks problem reported by kmemleak:  unreferenced object 0xffff888102007a00 (size 128):   comm \u0022ubirsvol\u0022, pid 32090, jiffies 4298464136 (age 2361.231s)   hex dump (first 32 bytes): ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff  ................ ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff  ................   backtrace: [\u003Cffffffff8176cecd\u003E] __kmalloc\u002B0x4d/0x150 [\u003Cffffffffa02a9a36\u003E] ubi_eba_create_table\u002B0x76/0x170 [ubi] [\u003Cffffffffa029764e\u003E] ubi_resize_volume\u002B0x1be/0xbc0 [ubi] [\u003Cffffffffa02a3321\u003E] ubi_cdev_ioctl\u002B0x701/0x1850 [ubi] [\u003Cffffffff81975d2d\u003E] __x64_sys_ioctl\u002B0x11d/0x170 [\u003Cffffffff83c142a5\u003E] do_syscall_64\u002B0x35/0x80 [\u003Cffffffff83e0006a\u003E] entry_SYSCALL_64_after_hwframe\u002B0x46/0xb0  This is due to a mismatch between create and destroy interfaces, and in detail that \u0022new_eba_tbl\u0022 created by ubi_eba_create_table() but destroyed by kfree(), while will causing \u0022new_eba_tbl-\u003Eentries\u0022 not freed.  Fix it by replacing kfree(new_eba_tbl) with ubi_eba_destroy_table(new_eba_tbl)",
  "published": "2025-09-16T08:15:35Z",
  "severity": "medium",
  "cvss": 5.5,
  "cvssVector": "CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H",
  "epss": 0.0016,
  "epssPercentile": 0.05148,
  "priority": "Routine",
  "priorityTier": 4,
  "exploited": false,
  "vendorExploited": false,
  "disclosed": false,
  "fixes": [
    {
      "platform": "linux",
      "product": "linux",
      "release": "Debian 12.15 (bookworm)",
      "fixedVersion": "6.1.20-1",
      "fix": "DEBIAN-CVE-2023-53271",
      "url": "https://patchblox.com/security/fix/linux/debian-cve-2023-53271",
      "released": "2025-09-16T08:15:35Z"
    },
    {
      "platform": "linux",
      "product": "linux",
      "release": "Debian 13.5 (trixie)",
      "fixedVersion": "6.1.20-1",
      "fix": "DEBIAN-CVE-2023-53271",
      "url": "https://patchblox.com/security/fix/linux/debian-cve-2023-53271",
      "released": "2025-09-16T08:15:35Z"
    },
    {
      "platform": "linux",
      "product": "linux",
      "release": "Debian 14",
      "fixedVersion": "6.1.20-1",
      "fix": "DEBIAN-CVE-2023-53271",
      "url": "https://patchblox.com/security/fix/linux/debian-cve-2023-53271",
      "released": "2025-09-16T08:15:35Z"
    }
  ],
  "noFixYet": [],
  "dataAsOf": "2026-11-08T00:53:09Z",
  "attribution": {
    "text": "Data: Patchblox Patch Radar",
    "url": "https://patchblox.com/security/patch-radar",
    "terms": "https://patchblox.com/security/patch-radar/use-the-data"
  }
}