{
  "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-2026-93256",
    "sourceURL": "https://www.cve.org/CVERecord?id=CVE-2026-93256",
    "idYear": 2026,
    "status": "PUBLISHED",
    "publishedAt": "2026-09-24T15:51:43.080Z",
    "updatedAt": "2026-10-19T09:08:09.709Z",
    "importedAt": "2026-10-24T01:58:35.090Z",
    "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": "arm64: hibernate: mask DAIF before restoring hibernated kernel",
      "summary": "In the Linux kernel, the following vulnerability has been resolved:\n\narm64: hibernate: mask DAIF before restoring hibernated kernel\n\nThe arm64 hibernate code manages the exception masking in an unsound\nway, leading to potential crashes and/or warnings during resume.\n\nWhen a hibernation image is saved in `swsusp_arch_suspend()`, all DAIF\nexceptions are masked (by virtue of `local_daif_save()`), and the\nsuspended image is saved assuming that all DAIF exceptions will remain\nmasked when the image is restored.\n\nWhen a hibernation image is resumed by `swsusp_arch_resume()`, only\ninterrupts are masked (by virtue of `local_irq_disable()` in\n`resume_target_kernel()`). When pseudo-NMI is enabled the DAIF.IF bits\nwill be clear, and regardless of pseudo-NMI the DAIF.DA bits will be\nclear.\n\nThis means that there are two problems:\n\n(1) It is possible to take Debug, SError, or pseudo-NMI exceptions\n    during the resume process. This is unsafe, as during the resume\n    process both the old ane new kernels will tranisently be in an\n    inconsistent state, and swsusp_arch_suspend_exit() won't retain\n    an executable mapping of any exception vectors.\n\n    Any exception taken here will be fatal and silent.\n\n(2) When re-entering the resumed kernel, some DAIF bits will be clear\n    unexpectedly. This permits Debug, SError, or pseudo-NMI exceptions\n    to be taken for a short period while the resumed kernel is not yet\n    in a consistent state.\n\n    This is detected by CONFIG_ARM64_DEBUG_PRIORITY_MASKING.\n\nAvoid these issues by masking all DAIF exceptions during resume.",
      "affected": [
        {
          "vendor": "Linux",
          "product": "Linux",
          "defaultStatus": "unaffected",
          "versions": [
            {
              "version": "82869ac57b5d3b550446932c918dbf2caf020c9e",
              "status": "affected",
              "versionType": "git",
              "lessThan": "c9c671e9ab87b639720db8f7f8648bdf0f3bc8ec"
            },
            {
              "version": "82869ac57b5d3b550446932c918dbf2caf020c9e",
              "status": "affected",
              "versionType": "git",
              "lessThan": "099ad3edcef1d955d9f5d6aab16ae78ecdfd4cda"
            },
            {
              "version": "82869ac57b5d3b550446932c918dbf2caf020c9e",
              "status": "affected",
              "versionType": "git",
              "lessThan": "716c41bd476334afb943308be9ff2142e34461b7"
            },
            {
              "version": "82869ac57b5d3b550446932c918dbf2caf020c9e",
              "status": "affected",
              "versionType": "git",
              "lessThan": "5370853041a3cb53a125b77528586278f64b378b"
            },
            {
              "version": "82869ac57b5d3b550446932c918dbf2caf020c9e",
              "status": "affected",
              "versionType": "git",
              "lessThan": "290c5b0c9fc0c61fb1c41421ed2394f955206ea0"
            },
            {
              "version": "82869ac57b5d3b550446932c918dbf2caf020c9e",
              "status": "affected",
              "versionType": "git",
              "lessThan": "012823494e20c3cce622982ebd3fd6971be39ad2"
            },
            {
              "version": "82869ac57b5d3b550446932c918dbf2caf020c9e",
              "status": "affected",
              "versionType": "git",
              "lessThan": "d736ace2c491623c9ab5e73744085e93e9ae3ebe"
            },
            {
              "version": "82869ac57b5d3b550446932c918dbf2caf020c9e",
              "status": "affected",
              "versionType": "git",
              "lessThan": "684bde100117931f4c51c644a95f42f2dab041bc"
            }
          ]
        },
        {
          "vendor": "Linux",
          "product": "Linux",
          "defaultStatus": "affected",
          "versions": [
            {
              "version": "4.7",
              "status": "affected"
            },
            {
              "version": "0",
              "status": "unaffected",
              "versionType": "semver",
              "lessThan": "4.7"
            },
            {
              "version": "5.10.270",
              "status": "unaffected",
              "versionType": "semver",
              "lessThanOrEqual": "5.10.*"
            },
            {
              "version": "5.15.221",
              "status": "unaffected",
              "versionType": "semver",
              "lessThanOrEqual": "5.15.*"
            },
            {
              "version": "6.1.188",
              "status": "unaffected",
              "versionType": "semver",
              "lessThanOrEqual": "6.1.*"
            },
            {
              "version": "6.6.157",
              "status": "unaffected",
              "versionType": "semver",
              "lessThanOrEqual": "6.6.*"
            },
            {
              "version": "6.12.110",
              "status": "unaffected",
              "versionType": "semver",
              "lessThanOrEqual": "6.12.*"
            },
            {
              "version": "6.18.52",
              "status": "unaffected",
              "versionType": "semver",
              "lessThanOrEqual": "6.18.*"
            },
            {
              "version": "7.2.6",
              "status": "unaffected",
              "versionType": "semver",
              "lessThanOrEqual": "7.2.*"
            },
            {
              "version": "7.3",
              "status": "unaffected",
              "versionType": "original_commit_for_fix",
              "lessThanOrEqual": "*"
            }
          ]
        }
      ]
    }
  }
}