FKIE_CVE-2026-98249

Vulnerability from fkie_nvd - Published: 2026-10-06 09:18 - Updated: 2026-10-06 09:18
Severity
Summary
In the Linux kernel, the following vulnerability has been resolved: arm64: hibernate: pass HVC_SET_VECTORS args to the resume hvc swsusp_arch_suspend_exit() reinstalls the restored kernel's hyp stub vectors with an hvc, but never passes the arguments. x0 is not set to HVC_SET_VECTORS and x1 is not set to the vector address, so the stub dispatch falls through and returns without writing vbar_el2. EL2 is left pointing at the trans_pgd copy of the vectors, a page that swsusp_free() releases right after resume. Set the arguments up the same way __hyp_set_vectors() does. Without this fix, Vladimir was able to trigger a hang when resuming from hibernation with CONFIG_PAGE_POISONING=y and page_poison=on.
References
416baaa9-dc9f-4396-8d5f-8c081fb06d67https://git.kernel.org/stable/c/60a3c319f1127c4d247d4ed235c5d65376d5e745
416baaa9-dc9f-4396-8d5f-8c081fb06d67https://git.kernel.org/stable/c/6646418d1032cac25110526161f60d255ed08397
416baaa9-dc9f-4396-8d5f-8c081fb06d67https://git.kernel.org/stable/c/909e92423db7299e0206232051aa21fe129f65d0
416baaa9-dc9f-4396-8d5f-8c081fb06d67https://git.kernel.org/stable/c/955d86e5f3b95b731991fdb84966c50b16314629
416baaa9-dc9f-4396-8d5f-8c081fb06d67https://git.kernel.org/stable/c/d3f8f773312af69eaf4dda106d76d6d42e4362e5
416baaa9-dc9f-4396-8d5f-8c081fb06d67https://git.kernel.org/stable/c/e80ea8118a073a30ebe7a31bd78938c2b1751acc
Impacted products
Vendor Product Version
To clipboard 

{
  "affected": [
    {
      "affectedData": [
        {
          "defaultStatus": "unaffected",
          "product": "Linux",
          "programFiles": [
            "arch/arm64/kernel/hibernate-asm.S"
          ],
          "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
          "vendor": "Linux",
          "versions": [
            {
              "lessThan": "6646418d1032cac25110526161f60d255ed08397",
              "status": "affected",
              "version": "788bfdd97434982b6d575062581e8e72eea755af",
              "versionType": "git"
            },
            {
              "lessThan": "909e92423db7299e0206232051aa21fe129f65d0",
              "status": "affected",
              "version": "788bfdd97434982b6d575062581e8e72eea755af",
              "versionType": "git"
            },
            {
              "lessThan": "60a3c319f1127c4d247d4ed235c5d65376d5e745",
              "status": "affected",
              "version": "788bfdd97434982b6d575062581e8e72eea755af",
              "versionType": "git"
            },
            {
              "lessThan": "e80ea8118a073a30ebe7a31bd78938c2b1751acc",
              "status": "affected",
              "version": "788bfdd97434982b6d575062581e8e72eea755af",
              "versionType": "git"
            },
            {
              "lessThan": "d3f8f773312af69eaf4dda106d76d6d42e4362e5",
              "status": "affected",
              "version": "788bfdd97434982b6d575062581e8e72eea755af",
              "versionType": "git"
            },
            {
              "lessThan": "955d86e5f3b95b731991fdb84966c50b16314629",
              "status": "affected",
              "version": "788bfdd97434982b6d575062581e8e72eea755af",
              "versionType": "git"
            }
          ]
        },
        {
          "defaultStatus": "affected",
          "product": "Linux",
          "programFiles": [
            "arch/arm64/kernel/hibernate-asm.S"
          ],
          "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
          "vendor": "Linux",
          "versions": [
            {
              "status": "affected",
              "version": "5.16"
            },
            {
              "lessThan": "5.16",
              "status": "unaffected",
              "version": "0",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "6.1.*",
              "status": "unaffected",
              "version": "6.1.189",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "6.6.*",
              "status": "unaffected",
              "version": "6.6.158",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "6.12.*",
              "status": "unaffected",
              "version": "6.12.112",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "6.18.*",
              "status": "unaffected",
              "version": "6.18.54",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "7.2.*",
              "status": "unaffected",
              "version": "7.2.8",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "*",
              "status": "unaffected",
              "version": "7.3-rc4",
              "versionType": "original_commit_for_fix"
            }
          ]
        }
      ],
      "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67"
    }
  ],
  "cveTags": [],
  "descriptions": [
    {
      "lang": "en",
      "value": "In the Linux kernel, the following vulnerability has been resolved:\n\narm64: hibernate: pass HVC_SET_VECTORS args to the resume hvc\n\nswsusp_arch_suspend_exit() reinstalls the restored kernel\u0027s hyp stub\nvectors with an hvc, but never passes the arguments. x0 is not set to\nHVC_SET_VECTORS and x1 is not set to the vector address, so the stub\ndispatch falls through and returns without writing vbar_el2. EL2 is\nleft pointing at the trans_pgd copy of the vectors, a page that\nswsusp_free() releases right after resume.\n\nSet the arguments up the same way __hyp_set_vectors() does.\n\nWithout this fix, Vladimir was able to trigger a hang when resuming from\nhibernation with CONFIG_PAGE_POISONING=y and page_poison=on."
    }
  ],
  "id": "CVE-2026-98249",
  "lastModified": "2026-10-06T09:18:13.290",
  "metrics": {},
  "published": "2026-10-06T09:18:13.290",
  "references": [
    {
      "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
      "url": "https://git.kernel.org/stable/c/60a3c319f1127c4d247d4ed235c5d65376d5e745"
    },
    {
      "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
      "url": "https://git.kernel.org/stable/c/6646418d1032cac25110526161f60d255ed08397"
    },
    {
      "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
      "url": "https://git.kernel.org/stable/c/909e92423db7299e0206232051aa21fe129f65d0"
    },
    {
      "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
      "url": "https://git.kernel.org/stable/c/955d86e5f3b95b731991fdb84966c50b16314629"
    },
    {
      "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
      "url": "https://git.kernel.org/stable/c/d3f8f773312af69eaf4dda106d76d6d42e4362e5"
    },
    {
      "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
      "url": "https://git.kernel.org/stable/c/e80ea8118a073a30ebe7a31bd78938c2b1751acc"
    }
  ],
  "sourceIdentifier": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
  "vulnStatus": "Received"
}



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