{
  "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-2021-47268",
    "sourceURL": "https://www.cve.org/CVERecord?id=CVE-2021-47268",
    "idYear": 2021,
    "status": "PUBLISHED",
    "publishedAt": "2024-05-21T14:19:58.550Z",
    "updatedAt": "2026-05-11T13:51:13.351Z",
    "importedAt": "2026-10-24T01:56:36.661Z",
    "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": "usb: typec: tcpm: cancel vdm and state machine hrtimer when unregister tcpm port",
      "summary": "In the Linux kernel, the following vulnerability has been resolved:\n\nusb: typec: tcpm: cancel vdm and state machine hrtimer when unregister tcpm port\n\nA pending hrtimer may expire after the kthread_worker of tcpm port\nis destroyed, see below kernel dump when do module unload, fix it\nby cancel the 2 hrtimers.\n\n[  111.517018] Unable to handle kernel paging request at virtual address ffff8000118cb880\n[  111.518786] blk_update_request: I/O error, dev sda, sector 60061185 op 0x0:(READ) flags 0x0 phys_seg 1 prio class 0\n[  111.526594] Mem abort info:\n[  111.526597]   ESR = 0x96000047\n[  111.526600]   EC = 0x25: DABT (current EL), IL = 32 bits\n[  111.526604]   SET = 0, FnV = 0\n[  111.526607]   EA = 0, S1PTW = 0\n[  111.526610] Data abort info:\n[  111.526612]   ISV = 0, ISS = 0x00000047\n[  111.526615]   CM = 0, WnR = 1\n[  111.526619] swapper pgtable: 4k pages, 48-bit VAs, pgdp=0000000041d75000\n[  111.526623] [ffff8000118cb880] pgd=10000001bffff003, p4d=10000001bffff003, pud=10000001bfffe003, pmd=10000001bfffa003, pte=0000000000000000\n[  111.526642] Internal error: Oops: 96000047 [#1] PREEMPT SMP\n[  111.526647] Modules linked in: dwc3_imx8mp dwc3 phy_fsl_imx8mq_usb [last unloaded: tcpci]\n[  111.526663] CPU: 0 PID: 0 Comm: swapper/0 Not tainted 5.13.0-rc4-00927-gebbe9dbd802c-dirty #36\n[  111.526670] Hardware name: NXP i.MX8MPlus EVK board (DT)\n[  111.526674] pstate: 800000c5 (Nzcv daIF -PAN -UAO -TCO BTYPE=--)\n[  111.526681] pc : queued_spin_lock_slowpath+0x1a0/0x390\n[  111.526695] lr : _raw_spin_lock_irqsave+0x88/0xb4\n[  111.526703] sp : ffff800010003e20\n[  111.526706] x29: ffff800010003e20 x28: ffff00017f380180\n[  111.537156] buffer_io_error: 6 callbacks suppressed\n[  111.537162] Buffer I/O error on dev sda1, logical block 60040704, async page read\n[  111.539932]  x27: ffff00017f3801c0\n[  111.539938] x26: ffff800010ba2490 x25: 0000000000000000 x24: 0000000000000001\n[  111.543025] blk_update_request: I/O error, dev sda, sector 60061186 op 0x0:(READ) flags 0x0 phys_seg 7 prio class 0\n[  111.548304]\n[  111.548306] x23: 00000000000000c0 x22: ffff0000c2a9f184 x21: ffff00017f380180\n[  111.551374] Buffer I/O error on dev sda1, logical block 60040705, async page read\n[  111.554499]\n[  111.554503] x20: ffff0000c5f14210 x19: 00000000000000c0 x18: 0000000000000000\n[  111.557391] Buffer I/O error on dev sda1, logical block 60040706, async page read\n[  111.561218]\n[  111.561222] x17: 0000000000000000 x16: 0000000000000000 x15: 0000000000000000\n[  111.564205] Buffer I/O error on dev sda1, logical block 60040707, async page read\n[  111.570887] x14: 00000000000000f5 x13: 0000000000000001 x12: 0000000000000040\n[  111.570902] x11: ffff0000c05ac6d8\n[  111.583420] Buffer I/O error on dev sda1, logical block 60040708, async page read\n[  111.588978]  x10: 0000000000000000 x9 : 0000000000040000\n[  111.588988] x8 : 0000000000000000\n[  111.597173] Buffer I/O error on dev sda1, logical block 60040709, async page read\n[  111.605766]  x7 : ffff00017f384880 x6 : ffff8000118cb880\n[  111.605777] x5 : ffff00017f384880\n[  111.611094] Buffer I/O error on dev sda1, logical block 60040710, async page read\n[  111.617086]  x4 : 0000000000000000 x3 : ffff0000c2a9f184\n[  111.617096] x2 : ffff8000118cb880\n[  111.622242] Buffer I/O error on dev sda1, logical block 60040711, async page read\n[  111.626927]  x1 : ffff8000118cb880 x0 : ffff00017f384888\n[  111.626938] Call trace:\n[  111.626942]  queued_spin_lock_slowpath+0x1a0/0x390\n[  111.795809]  kthread_queue_work+0x30/0xc0\n[  111.799828]  state_machine_timer_handler+0x20/0x30\n[  111.804624]  __hrtimer_run_queues+0x140/0x1e0\n[  111.808990]  hrtimer_interrupt+0xec/0x2c0\n[  111.813004]  arch_timer_handler_phys+0x38/0x50\n[  111.817456]  handle_percpu_devid_irq+0x88/0x150\n[  111.821991]  __handle_domain_irq+0x80/0xe0\n[  111.826093]  gic_handle_irq+0xc0/0x140\n[  111.829848]  el1_irq+0xbc/0x154\n[  111.832991]  arch_cpu_idle+0x1c/0x2c\n[  111.836572]  default_idle_call+0x24/0x6c\n[  111.840497]  do_idle+0x238/0x2ac\n[  1\n---truncated---",
      "affected": [
        {
          "vendor": "Linux",
          "product": "Linux",
          "defaultStatus": "unaffected",
          "versions": [
            {
              "version": "3ed8e1c2ac9914a2fcb08ec13476b85319536cea",
              "status": "affected",
              "versionType": "git",
              "lessThan": "18eaf0de50eadeeb395b83310b259b21ad8ed0a6"
            },
            {
              "version": "3ed8e1c2ac9914a2fcb08ec13476b85319536cea",
              "status": "affected",
              "versionType": "git",
              "lessThan": "d0a06696a8a4d99f649240b6f9b8a2e55452ecf5"
            },
            {
              "version": "3ed8e1c2ac9914a2fcb08ec13476b85319536cea",
              "status": "affected",
              "versionType": "git",
              "lessThan": "3a13ff7ef4349d70d1d18378d661117dd5af8efe"
            }
          ]
        },
        {
          "vendor": "Linux",
          "product": "Linux",
          "defaultStatus": "affected",
          "versions": [
            {
              "version": "5.10",
              "status": "affected"
            },
            {
              "version": "0",
              "status": "unaffected",
              "versionType": "semver",
              "lessThan": "5.10"
            },
            {
              "version": "5.10.44",
              "status": "unaffected",
              "versionType": "semver",
              "lessThanOrEqual": "5.10.*"
            },
            {
              "version": "5.12.11",
              "status": "unaffected",
              "versionType": "semver",
              "lessThanOrEqual": "5.12.*"
            },
            {
              "version": "5.13",
              "status": "unaffected",
              "versionType": "original_commit_for_fix",
              "lessThanOrEqual": "*"
            }
          ]
        }
      ]
    }
  }
}