{
  "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-2026-53343",
    "sourceURL": "https://www.cve.org/CVERecord?id=CVE-2026-53343",
    "idYear": 2026,
    "status": "PUBLISHED",
    "publishedAt": "2026-07-01T13:32:23.979Z",
    "updatedAt": "2026-07-01T13:32:23.979Z",
    "importedAt": "2026-10-24T01:58:20.586Z",
    "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": "ARM: 9475/1: entry: use byte load for KASAN VMAP stack shadow",
      "summary": "In the Linux kernel, the following vulnerability has been resolved:\n\nARM: 9475/1: entry: use byte load for KASAN VMAP stack shadow\n\nCommit 44e9a3bb76e5 (\"ARM: 9430/1: entry: Do a dummy read from\nVMAP shadow\") added a dummy read from the KASAN VMAP stack shadow in\n__switch_to(). The read uses ldr, but the KASAN shadow address is\nbyte-granular and is not guaranteed to be word aligned.\n\nARMv5 faults unaligned word loads. With CONFIG_KASAN_VMALLOC and\nCONFIG_VMAP_STACK enabled, ARM926/VersatilePB crashes in __switch_to()\nwith an alignment exception before reaching init.\n\nUse ldrb for the dummy shadow access. The code only needs to fault in the\nshadow mapping if the stack shadow is missing, so a byte load is sufficient\nand matches the granularity of KASAN shadow memory.",
      "affected": [
        {
          "vendor": "Linux",
          "product": "Linux",
          "defaultStatus": "unaffected",
          "versions": [
            {
              "version": "8fe148d39c127de3fb78dfa6da95a3608dfda454",
              "status": "affected",
              "versionType": "git",
              "lessThan": "c0b8c148a7754826156993ed6442d31536ec86b4"
            },
            {
              "version": "ef21187c0672a2b2cbec44f33bab9ec47d5c277c",
              "status": "affected",
              "versionType": "git",
              "lessThan": "c2e3aadc8fef7da068490597fc5582f8f362aeb2"
            },
            {
              "version": "c86d26b4b089ca294b3b7d915a7da61edb77935f",
              "status": "affected",
              "versionType": "git",
              "lessThan": "c74990828d3c486ee44aaa68240eb3abff289d1c"
            },
            {
              "version": "44e9a3bb76e5f2eecd374c8176b2c5163c8bb2e2",
              "status": "affected",
              "versionType": "git",
              "lessThan": "517720913bd3c17a52cd55a740064f68455ab88e"
            },
            {
              "version": "44e9a3bb76e5f2eecd374c8176b2c5163c8bb2e2",
              "status": "affected",
              "versionType": "git",
              "lessThan": "2a4dc9a0ac3326e79fb58fdaae724b92127709a9"
            },
            {
              "version": "44e9a3bb76e5f2eecd374c8176b2c5163c8bb2e2",
              "status": "affected",
              "versionType": "git",
              "lessThan": "77a1f6883dc6e837bb2cb30b9b02e2f94338e2c6"
            },
            {
              "version": "6.1.120",
              "status": "affected",
              "versionType": "semver",
              "lessThan": "6.1.176"
            },
            {
              "version": "6.6.64",
              "status": "affected",
              "versionType": "semver",
              "lessThan": "6.6.143"
            },
            {
              "version": "6.12.4",
              "status": "affected",
              "versionType": "semver",
              "lessThan": "6.12.94"
            }
          ]
        },
        {
          "vendor": "Linux",
          "product": "Linux",
          "defaultStatus": "affected",
          "versions": [
            {
              "version": "6.13",
              "status": "affected"
            },
            {
              "version": "0",
              "status": "unaffected",
              "versionType": "semver",
              "lessThan": "6.13"
            },
            {
              "version": "6.1.176",
              "status": "unaffected",
              "versionType": "semver",
              "lessThanOrEqual": "6.1.*"
            },
            {
              "version": "6.6.143",
              "status": "unaffected",
              "versionType": "semver",
              "lessThanOrEqual": "6.6.*"
            },
            {
              "version": "6.12.94",
              "status": "unaffected",
              "versionType": "semver",
              "lessThanOrEqual": "6.12.*"
            },
            {
              "version": "6.18.36",
              "status": "unaffected",
              "versionType": "semver",
              "lessThanOrEqual": "6.18.*"
            },
            {
              "version": "7.0.13",
              "status": "unaffected",
              "versionType": "semver",
              "lessThanOrEqual": "7.0.*"
            },
            {
              "version": "7.1",
              "status": "unaffected",
              "versionType": "original_commit_for_fix",
              "lessThanOrEqual": "*"
            }
          ]
        }
      ]
    }
  }
}