{
  "schemaVersion": 1,
  "attribution": [
    {
      "source": "CISA Known Exploited Vulnerabilities",
      "url": "https://www.cisa.gov/known-exploited-vulnerabilities-catalog",
      "licence": "US government work"
    },
    {
      "source": "GitHub Advisory Database",
      "url": "https://github.com/advisories",
      "licence": "CC BY 4.0"
    },
    {
      "source": "Have I Been Pwned",
      "url": "https://haveibeenpwned.com/",
      "licence": "CC BY 4.0"
    },
    {
      "source": "CVE Program (CVE records)",
      "url": "https://www.cve.org/Legal/TermsOfUse",
      "licence": "CVE Terms of Use",
      "notice": "Copyright © 1999-2026, The MITRE Corporation. CVE is a trademark and the CVE logo is a registered trademark of The MITRE Corporation.",
      "terms": "CVE Usage: MITRE hereby grants you a perpetual, worldwide, non-exclusive, no-charge, royalty-free, irrevocable copyright license to reproduce, prepare derivative works of, publicly display, publicly perform, sublicense, and distribute Common Vulnerabilities and Exposures (CVE™). Any copy you make for such purposes is authorized provided that you reproduce MITRE's copyright designation and this license in any such copy."
    },
    {
      "source": "FIRST EPSS",
      "url": "https://www.first.org/epss/",
      "licence": "free to use; FIRST requests attribution"
    }
  ],
  "record": {
    "id": "CVE-2023-53271",
    "sourceURL": "https://www.cve.org/CVERecord?id=CVE-2023-53271",
    "idYear": 2023,
    "status": "PUBLISHED",
    "publishedAt": "2025-09-16T08:07:00.565Z",
    "updatedAt": "2026-05-11T19:41:41.656Z",
    "importedAt": "2026-10-24T01:57:03.413Z",
    "snapshot": {
      "id": "cve_2026-10-24_midnight_baseline",
      "at": "2026-10-24T00:00:00.000Z",
      "source": "https://github.com/CVEProject/cvelistV5/releases/tag/cve_2026-10-24_0100Z"
    },
    "facts": {
      "title": "ubi: Fix unreferenced object reported by kmemleak in ubi_resize_volume()",
      "summary": "In the Linux kernel, the following vulnerability has been resolved:\n\nubi: Fix unreferenced object reported by kmemleak in ubi_resize_volume()\n\nThere is a memory leaks problem reported by kmemleak:\n\nunreferenced object 0xffff888102007a00 (size 128):\n  comm \"ubirsvol\", pid 32090, jiffies 4298464136 (age 2361.231s)\n  hex dump (first 32 bytes):\nff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff  ................\nff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff  ................\n  backtrace:\n[<ffffffff8176cecd>] __kmalloc+0x4d/0x150\n[<ffffffffa02a9a36>] ubi_eba_create_table+0x76/0x170 [ubi]\n[<ffffffffa029764e>] ubi_resize_volume+0x1be/0xbc0 [ubi]\n[<ffffffffa02a3321>] ubi_cdev_ioctl+0x701/0x1850 [ubi]\n[<ffffffff81975d2d>] __x64_sys_ioctl+0x11d/0x170\n[<ffffffff83c142a5>] do_syscall_64+0x35/0x80\n[<ffffffff83e0006a>] entry_SYSCALL_64_after_hwframe+0x46/0xb0\n\nThis is due to a mismatch between create and destroy interfaces, and\nin detail that \"new_eba_tbl\" created by ubi_eba_create_table() but\ndestroyed by kfree(), while will causing \"new_eba_tbl->entries\" not\nfreed.\n\nFix it by replacing kfree(new_eba_tbl) with\nubi_eba_destroy_table(new_eba_tbl)",
      "affected": [
        {
          "vendor": "Linux",
          "product": "Linux",
          "defaultStatus": "unaffected",
          "versions": [
            {
              "version": "799dca34ac543485f581bd8464ec9b1c4f0f852a",
              "status": "affected",
              "versionType": "git",
              "lessThan": "09780a44093b53f9cbca76246af2e4ff0884e512"
            },
            {
              "version": "799dca34ac543485f581bd8464ec9b1c4f0f852a",
              "status": "affected",
              "versionType": "git",
              "lessThan": "26ec2d66aecab8ff997b912c20247fedba4f5740"
            },
            {
              "version": "799dca34ac543485f581bd8464ec9b1c4f0f852a",
              "status": "affected",
              "versionType": "git",
              "lessThan": "07b60f7452d2fa731737552937cb81821919f874"
            },
            {
              "version": "799dca34ac543485f581bd8464ec9b1c4f0f852a",
              "status": "affected",
              "versionType": "git",
              "lessThan": "31d60afe2cc2b712dbefcaab6b7d6a47036f844e"
            },
            {
              "version": "799dca34ac543485f581bd8464ec9b1c4f0f852a",
              "status": "affected",
              "versionType": "git",
              "lessThan": "95a72417dd13ebcdcb1bd0c5d4d15f7c5bfbb288"
            },
            {
              "version": "799dca34ac543485f581bd8464ec9b1c4f0f852a",
              "status": "affected",
              "versionType": "git",
              "lessThan": "27b760b81951d8d5e5c952a696af8574052b0709"
            },
            {
              "version": "799dca34ac543485f581bd8464ec9b1c4f0f852a",
              "status": "affected",
              "versionType": "git",
              "lessThan": "5c0c81a313492b83bd0c038b8839b0e04eb87563"
            },
            {
              "version": "799dca34ac543485f581bd8464ec9b1c4f0f852a",
              "status": "affected",
              "versionType": "git",
              "lessThan": "1e591ea072df7211f64542a09482b5f81cb3ad27"
            }
          ]
        },
        {
          "vendor": "Linux",
          "product": "Linux",
          "defaultStatus": "affected",
          "versions": [
            {
              "version": "4.9",
              "status": "affected"
            },
            {
              "version": "0",
              "status": "unaffected",
              "versionType": "semver",
              "lessThan": "4.9"
            },
            {
              "version": "4.14.308",
              "status": "unaffected",
              "versionType": "semver",
              "lessThanOrEqual": "4.14.*"
            },
            {
              "version": "4.19.276",
              "status": "unaffected",
              "versionType": "semver",
              "lessThanOrEqual": "4.19.*"
            },
            {
              "version": "5.4.235",
              "status": "unaffected",
              "versionType": "semver",
              "lessThanOrEqual": "5.4.*"
            },
            {
              "version": "5.10.173",
              "status": "unaffected",
              "versionType": "semver",
              "lessThanOrEqual": "5.10.*"
            },
            {
              "version": "5.15.100",
              "status": "unaffected",
              "versionType": "semver",
              "lessThanOrEqual": "5.15.*"
            },
            {
              "version": "6.1.18",
              "status": "unaffected",
              "versionType": "semver",
              "lessThanOrEqual": "6.1.*"
            },
            {
              "version": "6.2.5",
              "status": "unaffected",
              "versionType": "semver",
              "lessThanOrEqual": "6.2.*"
            },
            {
              "version": "6.3",
              "status": "unaffected",
              "versionType": "original_commit_for_fix",
              "lessThanOrEqual": "*"
            }
          ]
        }
      ]
    }
  }
}