{
  "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-2025-68322",
    "sourceURL": "https://www.cve.org/CVERecord?id=CVE-2025-68322",
    "idYear": 2025,
    "status": "PUBLISHED",
    "publishedAt": "2025-12-16T15:44:19.850Z",
    "updatedAt": "2026-05-11T21:50:55.903Z",
    "importedAt": "2026-10-24T01:57:44.935Z",
    "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": "parisc: Avoid crash due to unaligned access in unwinder",
      "summary": "In the Linux kernel, the following vulnerability has been resolved:\n\nparisc: Avoid crash due to unaligned access in unwinder\n\nGuenter Roeck reported this kernel crash on his emulated B160L machine:\n\nStarting network: udhcpc: started, v1.36.1\n Backtrace:\n  [<104320d4>] unwind_once+0x1c/0x5c\n  [<10434a00>] walk_stackframe.isra.0+0x74/0xb8\n  [<10434a6c>] arch_stack_walk+0x28/0x38\n  [<104e5efc>] stack_trace_save+0x48/0x5c\n  [<105d1bdc>] set_track_prepare+0x44/0x6c\n  [<105d9c80>] ___slab_alloc+0xfc4/0x1024\n  [<105d9d38>] __slab_alloc.isra.0+0x58/0x90\n  [<105dc80c>] kmem_cache_alloc_noprof+0x2ac/0x4a0\n  [<105b8e54>] __anon_vma_prepare+0x60/0x280\n  [<105a823c>] __vmf_anon_prepare+0x68/0x94\n  [<105a8b34>] do_wp_page+0x8cc/0xf10\n  [<105aad88>] handle_mm_fault+0x6c0/0xf08\n  [<10425568>] do_page_fault+0x110/0x440\n  [<10427938>] handle_interruption+0x184/0x748\n  [<11178398>] schedule+0x4c/0x190\n  BUG: spinlock recursion on CPU#0, ifconfig/2420\n  lock: terminate_lock.2+0x0/0x1c, .magic: dead4ead, .owner: ifconfig/2420, .owner_cpu: 0\n\nWhile creating the stack trace, the unwinder uses the stack pointer to guess\nthe previous frame to read the previous stack pointer from memory.  The crash\nhappens, because the unwinder tries to read from unaligned memory and as such\ntriggers the unalignment trap handler which then leads to the spinlock\nrecursion and finally to a deadlock.\n\nFix it by checking the alignment before accessing the memory.",
      "affected": [
        {
          "vendor": "Linux",
          "product": "Linux",
          "defaultStatus": "unaffected",
          "versions": [
            {
              "version": "c8921d72e390cb6fca3fb2b0c2badfda851647eb",
              "status": "affected",
              "versionType": "git",
              "lessThan": "9ac1f44723f26881b9fe7e69c7bc25397b879155"
            },
            {
              "version": "c8921d72e390cb6fca3fb2b0c2badfda851647eb",
              "status": "affected",
              "versionType": "git",
              "lessThan": "009270208f76456c2cefcd565da263b90bb2eadb"
            },
            {
              "version": "c8921d72e390cb6fca3fb2b0c2badfda851647eb",
              "status": "affected",
              "versionType": "git",
              "lessThan": "fd9f30d1038ee1624baa17a6ff11effe5f7617cb"
            }
          ]
        },
        {
          "vendor": "Linux",
          "product": "Linux",
          "defaultStatus": "affected",
          "versions": [
            {
              "version": "4.19",
              "status": "affected"
            },
            {
              "version": "0",
              "status": "unaffected",
              "versionType": "semver",
              "lessThan": "4.19"
            },
            {
              "version": "6.12.58",
              "status": "unaffected",
              "versionType": "semver",
              "lessThanOrEqual": "6.12.*"
            },
            {
              "version": "6.17.8",
              "status": "unaffected",
              "versionType": "semver",
              "lessThanOrEqual": "6.17.*"
            },
            {
              "version": "6.18",
              "status": "unaffected",
              "versionType": "original_commit_for_fix",
              "lessThanOrEqual": "*"
            }
          ]
        }
      ]
    }
  }
}