{
  "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-2023-52559",
    "sourceURL": "https://www.cve.org/CVERecord?id=CVE-2023-52559",
    "idYear": 2023,
    "status": "PUBLISHED",
    "publishedAt": "2024-03-02T21:59:33.301Z",
    "updatedAt": "2026-05-11T19:29:08.462Z",
    "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": "iommu/vt-d: Avoid memory allocation in iommu_suspend()",
      "summary": "In the Linux kernel, the following vulnerability has been resolved:\n\niommu/vt-d: Avoid memory allocation in iommu_suspend()\n\nThe iommu_suspend() syscore suspend callback is invoked with IRQ disabled.\nAllocating memory with the GFP_KERNEL flag may re-enable IRQs during\nthe suspend callback, which can cause intermittent suspend/hibernation\nproblems with the following kernel traces:\n\nCalling iommu_suspend+0x0/0x1d0\n------------[ cut here ]------------\nWARNING: CPU: 0 PID: 15 at kernel/time/timekeeping.c:868 ktime_get+0x9b/0xb0\n...\nCPU: 0 PID: 15 Comm: rcu_preempt Tainted: G     U      E      6.3-intel #r1\nRIP: 0010:ktime_get+0x9b/0xb0\n...\nCall Trace:\n <IRQ>\n tick_sched_timer+0x22/0x90\n ? __pfx_tick_sched_timer+0x10/0x10\n __hrtimer_run_queues+0x111/0x2b0\n hrtimer_interrupt+0xfa/0x230\n __sysvec_apic_timer_interrupt+0x63/0x140\n sysvec_apic_timer_interrupt+0x7b/0xa0\n </IRQ>\n <TASK>\n asm_sysvec_apic_timer_interrupt+0x1f/0x30\n...\n------------[ cut here ]------------\nInterrupts enabled after iommu_suspend+0x0/0x1d0\nWARNING: CPU: 0 PID: 27420 at drivers/base/syscore.c:68 syscore_suspend+0x147/0x270\nCPU: 0 PID: 27420 Comm: rtcwake Tainted: G     U  W   E      6.3-intel #r1\nRIP: 0010:syscore_suspend+0x147/0x270\n...\nCall Trace:\n <TASK>\n hibernation_snapshot+0x25b/0x670\n hibernate+0xcd/0x390\n state_store+0xcf/0xe0\n kobj_attr_store+0x13/0x30\n sysfs_kf_write+0x3f/0x50\n kernfs_fop_write_iter+0x128/0x200\n vfs_write+0x1fd/0x3c0\n ksys_write+0x6f/0xf0\n __x64_sys_write+0x1d/0x30\n do_syscall_64+0x3b/0x90\n entry_SYSCALL_64_after_hwframe+0x72/0xdc\n\nGiven that only 4 words memory is needed, avoid the memory allocation in\niommu_suspend().",
      "affected": [
        {
          "vendor": "Linux",
          "product": "Linux",
          "defaultStatus": "unaffected",
          "versions": [
            {
              "version": "33e07157105e472b746b70b3ed4197c57c43ab68",
              "status": "affected",
              "versionType": "git",
              "lessThan": "29298c85a81abdc512e87537515ed4b1a9601d0e"
            },
            {
              "version": "33e07157105e472b746b70b3ed4197c57c43ab68",
              "status": "affected",
              "versionType": "git",
              "lessThan": "c12ef025add77ca3a0902e8719d552b6d47b4282"
            },
            {
              "version": "33e07157105e472b746b70b3ed4197c57c43ab68",
              "status": "affected",
              "versionType": "git",
              "lessThan": "496c591f0b389eb782f36d9d4c2564b9a865eed0"
            },
            {
              "version": "33e07157105e472b746b70b3ed4197c57c43ab68",
              "status": "affected",
              "versionType": "git",
              "lessThan": "59df44bfb0ca4c3ee1f1c3c5d0ee8e314844799e"
            }
          ]
        },
        {
          "vendor": "Linux",
          "product": "Linux",
          "defaultStatus": "affected",
          "versions": [
            {
              "version": "5.11",
              "status": "affected"
            },
            {
              "version": "0",
              "status": "unaffected",
              "versionType": "semver",
              "lessThan": "5.11"
            },
            {
              "version": "5.15.136",
              "status": "unaffected",
              "versionType": "semver",
              "lessThanOrEqual": "5.15.*"
            },
            {
              "version": "6.1.57",
              "status": "unaffected",
              "versionType": "semver",
              "lessThanOrEqual": "6.1.*"
            },
            {
              "version": "6.5.7",
              "status": "unaffected",
              "versionType": "semver",
              "lessThanOrEqual": "6.5.*"
            },
            {
              "version": "6.6",
              "status": "unaffected",
              "versionType": "original_commit_for_fix",
              "lessThanOrEqual": "*"
            }
          ]
        }
      ]
    }
  }
}