Vulnerability-Lookup

GHSA-8G98-8RXJ-3J4Q

Vulnerability from github – Published: 2024-05-21 15:31 – Updated: 2024-12-26 21:30

Details

In the Linux kernel, the following vulnerability has been resolved:

usb: typec: tcpm: cancel vdm and state machine hrtimer when unregister tcpm port

A pending hrtimer may expire after the kthread_worker of tcpm port is destroyed, see below kernel dump when do module unload, fix it by cancel the 2 hrtimers.

[ 111.517018] Unable to handle kernel paging request at virtual address ffff8000118cb880 [ 111.518786] blk_update_request: I/O error, dev sda, sector 60061185 op 0x0:(READ) flags 0x0 phys_seg 1 prio class 0 [ 111.526594] Mem abort info: [ 111.526597] ESR = 0x96000047 [ 111.526600] EC = 0x25: DABT (current EL), IL = 32 bits [ 111.526604] SET = 0, FnV = 0 [ 111.526607] EA = 0, S1PTW = 0 [ 111.526610] Data abort info: [ 111.526612] ISV = 0, ISS = 0x00000047 [ 111.526615] CM = 0, WnR = 1 [ 111.526619] swapper pgtable: 4k pages, 48-bit VAs, pgdp=0000000041d75000 [ 111.526623] [ffff8000118cb880] pgd=10000001bffff003, p4d=10000001bffff003, pud=10000001bfffe003, pmd=10000001bfffa003, pte=0000000000000000 [ 111.526642] Internal error: Oops: 96000047 [#1] PREEMPT SMP [ 111.526647] Modules linked in: dwc3_imx8mp dwc3 phy_fsl_imx8mq_usb [last unloaded: tcpci] [ 111.526663] CPU: 0 PID: 0 Comm: swapper/0 Not tainted 5.13.0-rc4-00927-gebbe9dbd802c-dirty #36 [ 111.526670] Hardware name: NXP i.MX8MPlus EVK board (DT) [ 111.526674] pstate: 800000c5 (Nzcv daIF -PAN -UAO -TCO BTYPE=--) [ 111.526681] pc : queued_spin_lock_slowpath+0x1a0/0x390 [ 111.526695] lr : _raw_spin_lock_irqsave+0x88/0xb4 [ 111.526703] sp : ffff800010003e20 [ 111.526706] x29: ffff800010003e20 x28: ffff00017f380180 [ 111.537156] buffer_io_error: 6 callbacks suppressed [ 111.537162] Buffer I/O error on dev sda1, logical block 60040704, async page read [ 111.539932] x27: ffff00017f3801c0 [ 111.539938] x26: ffff800010ba2490 x25: 0000000000000000 x24: 0000000000000001 [ 111.543025] blk_update_request: I/O error, dev sda, sector 60061186 op 0x0:(READ) flags 0x0 phys_seg 7 prio class 0 [ 111.548304] [ 111.548306] x23: 00000000000000c0 x22: ffff0000c2a9f184 x21: ffff00017f380180 [ 111.551374] Buffer I/O error on dev sda1, logical block 60040705, async page read [ 111.554499] [ 111.554503] x20: ffff0000c5f14210 x19: 00000000000000c0 x18: 0000000000000000 [ 111.557391] Buffer I/O error on dev sda1, logical block 60040706, async page read [ 111.561218] [ 111.561222] x17: 0000000000000000 x16: 0000000000000000 x15: 0000000000000000 [ 111.564205] Buffer I/O error on dev sda1, logical block 60040707, async page read [ 111.570887] x14: 00000000000000f5 x13: 0000000000000001 x12: 0000000000000040 [ 111.570902] x11: ffff0000c05ac6d8 [ 111.583420] Buffer I/O error on dev sda1, logical block 60040708, async page read [ 111.588978] x10: 0000000000000000 x9 : 0000000000040000 [ 111.588988] x8 : 0000000000000000 [ 111.597173] Buffer I/O error on dev sda1, logical block 60040709, async page read [ 111.605766] x7 : ffff00017f384880 x6 : ffff8000118cb880 [ 111.605777] x5 : ffff00017f384880 [ 111.611094] Buffer I/O error on dev sda1, logical block 60040710, async page read [ 111.617086] x4 : 0000000000000000 x3 : ffff0000c2a9f184 [ 111.617096] x2 : ffff8000118cb880 [ 111.622242] Buffer I/O error on dev sda1, logical block 60040711, async page read [ 111.626927] x1 : ffff8000118cb880 x0 : ffff00017f384888 [ 111.626938] Call trace: [ 111.626942] queued_spin_lock_slowpath+0x1a0/0x390 [ 111.795809] kthread_queue_work+0x30/0xc0 [ 111.799828] state_machine_timer_handler+0x20/0x30 [ 111.804624] __hrtimer_run_queues+0x140/0x1e0 [ 111.808990] hrtimer_interrupt+0xec/0x2c0 [ 111.813004] arch_timer_handler_phys+0x38/0x50 [ 111.817456] handle_percpu_devid_irq+0x88/0x150 [ 111.821991] __handle_domain_irq+0x80/0xe0 [ 111.826093] gic_handle_irq+0xc0/0x140 [ 111.829848] el1_irq+0xbc/0x154 [ 111.832991] arch_cpu_idle+0x1c/0x2c [ 111.836572] default_idle_call+0x24/0x6c [ 111.840497] do_idle+0x238/0x2ac [ 1 ---truncated---

Severity

7.8 (High)


                  
                    CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H

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{
  "affected": [],
  "aliases": [
    "CVE-2021-47268"
  ],
  "database_specific": {
    "cwe_ids": [],
    "github_reviewed": false,
    "github_reviewed_at": null,
    "nvd_published_at": "2024-05-21T15:15:15Z",
    "severity": "HIGH"
  },
  "details": "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---",
  "id": "GHSA-8g98-8rxj-3j4q",
  "modified": "2024-12-26T21:30:35Z",
  "published": "2024-05-21T15:31:41Z",
  "references": [
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2021-47268"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/18eaf0de50eadeeb395b83310b259b21ad8ed0a6"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/3a13ff7ef4349d70d1d18378d661117dd5af8efe"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/d0a06696a8a4d99f649240b6f9b8a2e55452ecf5"
    }
  ],
  "schema_version": "1.4.0",
  "severity": [
    {
      "score": "CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H",
      "type": "CVSS_V3"
    }
  ]
}

CVE-2021-47268 (GCVE-0-2021-47268)

Vulnerability from cvelistv5 – Published: 2024-05-21 14:19 – Updated: 2026-05-11 13:51

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

Severity

No CVSS data available.

SSVC

Exploitation: none Automatable: no Technical Impact: partial

CISA Coordinator · CISA-ADP (v2.0.3)

Decision recorded 2024-06-12 15:24 UTC

Assigner

Linux mitre root

References

3 references

URL	Tags
https://git.kernel.org/stable/c/18eaf0de50eadeeb3…
https://git.kernel.org/stable/c/d0a06696a8a4d99f6…
https://git.kernel.org/stable/c/3a13ff7ef4349d70d…

Impacted products

2 products

Vendor	Product	Version
Linux	Linux	Affected: 3ed8e1c2ac9914a2fcb08ec13476b85319536cea , < 18eaf0de50eadeeb395b83310b259b21ad8ed0a6 (git) Affected: 3ed8e1c2ac9914a2fcb08ec13476b85319536cea , < d0a06696a8a4d99f649240b6f9b8a2e55452ecf5 (git) Affected: 3ed8e1c2ac9914a2fcb08ec13476b85319536cea , < 3a13ff7ef4349d70d1d18378d661117dd5af8efe (git)
Linux	Linux	Affected: 5.10 Unaffected: 0 , < 5.10 (semver) Unaffected: 5.10.44 , ≤ 5.10.* (semver) Unaffected: 5.12.11 , ≤ 5.12.* (semver) Unaffected: 5.13 , ≤ * (original_commit_for_fix)

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{
  "containers": {
    "adp": [
      {
        "metrics": [
          {
            "other": {
              "content": {
                "id": "CVE-2021-47268",
                "options": [
                  {
                    "Exploitation": "none"
                  },
                  {
                    "Automatable": "no"
                  },
                  {
                    "Technical Impact": "partial"
                  }
                ],
                "role": "CISA Coordinator",
                "timestamp": "2024-06-12T15:24:57.809869Z",
                "version": "2.0.3"
              },
              "type": "ssvc"
            }
          }
        ],
        "providerMetadata": {
          "dateUpdated": "2024-06-12T15:25:08.195Z",
          "orgId": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
          "shortName": "CISA-ADP"
        },
        "title": "CISA ADP Vulnrichment"
      },
      {
        "providerMetadata": {
          "dateUpdated": "2024-08-04T05:32:07.939Z",
          "orgId": "af854a3a-2127-422b-91ae-364da2661108",
          "shortName": "CVE"
        },
        "references": [
          {
            "tags": [
              "x_transferred"
            ],
            "url": "https://git.kernel.org/stable/c/18eaf0de50eadeeb395b83310b259b21ad8ed0a6"
          },
          {
            "tags": [
              "x_transferred"
            ],
            "url": "https://git.kernel.org/stable/c/d0a06696a8a4d99f649240b6f9b8a2e55452ecf5"
          },
          {
            "tags": [
              "x_transferred"
            ],
            "url": "https://git.kernel.org/stable/c/3a13ff7ef4349d70d1d18378d661117dd5af8efe"
          }
        ],
        "title": "CVE Program Container"
      }
    ],
    "cna": {
      "affected": [
        {
          "defaultStatus": "unaffected",
          "product": "Linux",
          "programFiles": [
            "drivers/usb/typec/tcpm/tcpm.c"
          ],
          "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
          "vendor": "Linux",
          "versions": [
            {
              "lessThan": "18eaf0de50eadeeb395b83310b259b21ad8ed0a6",
              "status": "affected",
              "version": "3ed8e1c2ac9914a2fcb08ec13476b85319536cea",
              "versionType": "git"
            },
            {
              "lessThan": "d0a06696a8a4d99f649240b6f9b8a2e55452ecf5",
              "status": "affected",
              "version": "3ed8e1c2ac9914a2fcb08ec13476b85319536cea",
              "versionType": "git"
            },
            {
              "lessThan": "3a13ff7ef4349d70d1d18378d661117dd5af8efe",
              "status": "affected",
              "version": "3ed8e1c2ac9914a2fcb08ec13476b85319536cea",
              "versionType": "git"
            }
          ]
        },
        {
          "defaultStatus": "affected",
          "product": "Linux",
          "programFiles": [
            "drivers/usb/typec/tcpm/tcpm.c"
          ],
          "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
          "vendor": "Linux",
          "versions": [
            {
              "status": "affected",
              "version": "5.10"
            },
            {
              "lessThan": "5.10",
              "status": "unaffected",
              "version": "0",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "5.10.*",
              "status": "unaffected",
              "version": "5.10.44",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "5.12.*",
              "status": "unaffected",
              "version": "5.12.11",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "*",
              "status": "unaffected",
              "version": "5.13",
              "versionType": "original_commit_for_fix"
            }
          ]
        }
      ],
      "cpeApplicability": [
        {
          "nodes": [
            {
              "cpeMatch": [
                {
                  "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                  "versionEndExcluding": "5.10.44",
                  "versionStartIncluding": "5.10",
                  "vulnerable": true
                },
                {
                  "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                  "versionEndExcluding": "5.12.11",
                  "versionStartIncluding": "5.10",
                  "vulnerable": true
                },
                {
                  "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                  "versionEndExcluding": "5.13",
                  "versionStartIncluding": "5.10",
                  "vulnerable": true
                }
              ],
              "negate": false,
              "operator": "OR"
            }
          ]
        }
      ],
      "descriptions": [
        {
          "lang": "en",
          "value": "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---"
        }
      ],
      "providerMetadata": {
        "dateUpdated": "2026-05-11T13:51:13.351Z",
        "orgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
        "shortName": "Linux"
      },
      "references": [
        {
          "url": "https://git.kernel.org/stable/c/18eaf0de50eadeeb395b83310b259b21ad8ed0a6"
        },
        {
          "url": "https://git.kernel.org/stable/c/d0a06696a8a4d99f649240b6f9b8a2e55452ecf5"
        },
        {
          "url": "https://git.kernel.org/stable/c/3a13ff7ef4349d70d1d18378d661117dd5af8efe"
        }
      ],
      "title": "usb: typec: tcpm: cancel vdm and state machine hrtimer when unregister tcpm port",
      "x_generator": {
        "engine": "bippy-1.2.0"
      }
    }
  },
  "cveMetadata": {
    "assignerOrgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
    "assignerShortName": "Linux",
    "cveId": "CVE-2021-47268",
    "datePublished": "2024-05-21T14:19:58.550Z",
    "dateReserved": "2024-05-21T13:27:52.127Z",
    "dateUpdated": "2026-05-11T13:51:13.351Z",
    "state": "PUBLISHED"
  },
  "dataType": "CVE_RECORD",
  "dataVersion": "5.2"
}

Sightings

Author	Source	Type	Date	Other

Nomenclature

Seen: The vulnerability was mentioned, discussed, or observed by the user.
Confirmed: The vulnerability has been validated from an analyst's perspective.
Published Proof of Concept: A public proof of concept is available for this vulnerability.
Exploited: The vulnerability was observed as exploited by the user who reported the sighting.
Patched: The vulnerability was observed as successfully patched by the user who reported the sighting.
Not exploited: The vulnerability was not observed as exploited by the user who reported the sighting.
Not confirmed: The user expressed doubt about the validity of the vulnerability.
Not patched: The vulnerability was not observed as successfully patched by the user who reported the sighting.

Detection rules are retrieved from Rulezet.

The MITRE ATT&CK techniques below are AI-generated suggestions, inferred from the description of the vulnerability by the CIRCL/vulnerability-attack-technique-classification-roberta-base model, served locally by ML-Gateway. They have not been verified by an analyst and are provided for guidance only.
The approach is described in our paper Mapping CVEs to MITRE ATT&CK Techniques: A Curated Gold-Set Classifier and the Limits of LLM-Assisted Label Expansion.

Action not permitted

GHSA-8G98-8RXJ-3J4Q

CVE-2021-47268 (GCVE-0-2021-47268)

Tags

Sightings

Nomenclature