Vulnerability-Lookup

GHSA-GC58-F6GQ-W9XV

Vulnerability from github – Published: 2024-02-28 09:30 – Updated: 2025-01-08 18:30

Details

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

mt76: mt7921: fix possible invalid register access

Disable the interrupt and synchronze for the pending irq handlers to ensure the irq tasklet is not being scheduled after the suspend to avoid the possible invalid register access acts when the host pcie controller is suspended.

[17932.910534] mt7921e 0000:01:00.0: pci_pm_suspend+0x0/0x22c returned 0 after 21375 usecs [17932.910590] pcieport 0000:00:00.0: calling pci_pm_suspend+0x0/0x22c @ 18565, parent: pci0000:00 [17932.910602] pcieport 0000:00:00.0: pci_pm_suspend+0x0/0x22c returned 0 after 8 usecs [17932.910671] mtk-pcie 11230000.pcie: calling platform_pm_suspend+0x0/0x60 @ 22783, parent: soc [17932.910674] mtk-pcie 11230000.pcie: platform_pm_suspend+0x0/0x60 returned 0 after 0 usecs

...

17933.615352] x1 : 00000000000d4200 x0 : ffffff8269ca2300 [17933.620666] Call trace: [17933.623127] mt76_mmio_rr+0x28/0xf0 [mt76] [17933.627234] mt7921_rr+0x38/0x44 [mt7921e] [17933.631339] mt7921_irq_tasklet+0x54/0x1d8 [mt7921e] [17933.636309] tasklet_action_common+0x12c/0x16c [17933.640754] tasklet_action+0x24/0x2c [17933.644418] __do_softirq+0x16c/0x344 [17933.648082] irq_exit+0xa8/0xac [17933.651224] scheduler_ipi+0xd4/0x148 [17933.654890] handle_IPI+0x164/0x2d4 [17933.658379] gic_handle_irq+0x140/0x178 [17933.662216] el1_irq+0xb8/0x180 [17933.665361] cpuidle_enter_state+0xf8/0x204 [17933.669544] cpuidle_enter+0x38/0x4c [17933.673122] do_idle+0x1a4/0x2a8 [17933.676352] cpu_startup_entry+0x24/0x28 [17933.680276] rest_init+0xd4/0xe0 [17933.683508] arch_call_rest_init+0x10/0x18 [17933.687606] start_kernel+0x340/0x3b4 [17933.691279] Code: aa0003f5 d503201f f953eaa8 8b344108 (b9400113) [17933.697373] ---[ end trace a24b8e26ffbda3c5 ]--- [17933.767846] Kernel panic - not syncing: Fatal exception in interrupt

Severity

5.5 (Medium)


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

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{
  "affected": [],
  "aliases": [
    "CVE-2021-47019"
  ],
  "database_specific": {
    "cwe_ids": [],
    "github_reviewed": false,
    "github_reviewed_at": null,
    "nvd_published_at": "2024-02-28T09:15:39Z",
    "severity": "MODERATE"
  },
  "details": "In the Linux kernel, the following vulnerability has been resolved:\n\nmt76: mt7921: fix possible invalid register access\n\nDisable the interrupt and synchronze for the pending irq handlers to ensure\nthe irq tasklet is not being scheduled after the suspend to avoid the\npossible invalid register access acts when the host pcie controller is\nsuspended.\n\n[17932.910534] mt7921e 0000:01:00.0: pci_pm_suspend+0x0/0x22c returned 0 after 21375 usecs\n[17932.910590] pcieport 0000:00:00.0: calling pci_pm_suspend+0x0/0x22c @ 18565, parent: pci0000:00\n[17932.910602] pcieport 0000:00:00.0: pci_pm_suspend+0x0/0x22c returned 0 after 8 usecs\n[17932.910671] mtk-pcie 11230000.pcie: calling platform_pm_suspend+0x0/0x60 @ 22783, parent: soc\n[17932.910674] mtk-pcie 11230000.pcie: platform_pm_suspend+0x0/0x60 returned 0 after 0 usecs\n\n...\n\n17933.615352] x1 : 00000000000d4200 x0 : ffffff8269ca2300\n[17933.620666] Call trace:\n[17933.623127]  mt76_mmio_rr+0x28/0xf0 [mt76]\n[17933.627234]  mt7921_rr+0x38/0x44 [mt7921e]\n[17933.631339]  mt7921_irq_tasklet+0x54/0x1d8 [mt7921e]\n[17933.636309]  tasklet_action_common+0x12c/0x16c\n[17933.640754]  tasklet_action+0x24/0x2c\n[17933.644418]  __do_softirq+0x16c/0x344\n[17933.648082]  irq_exit+0xa8/0xac\n[17933.651224]  scheduler_ipi+0xd4/0x148\n[17933.654890]  handle_IPI+0x164/0x2d4\n[17933.658379]  gic_handle_irq+0x140/0x178\n[17933.662216]  el1_irq+0xb8/0x180\n[17933.665361]  cpuidle_enter_state+0xf8/0x204\n[17933.669544]  cpuidle_enter+0x38/0x4c\n[17933.673122]  do_idle+0x1a4/0x2a8\n[17933.676352]  cpu_startup_entry+0x24/0x28\n[17933.680276]  rest_init+0xd4/0xe0\n[17933.683508]  arch_call_rest_init+0x10/0x18\n[17933.687606]  start_kernel+0x340/0x3b4\n[17933.691279] Code: aa0003f5 d503201f f953eaa8 8b344108 (b9400113)\n[17933.697373] ---[ end trace a24b8e26ffbda3c5 ]---\n[17933.767846] Kernel panic - not syncing: Fatal exception in interrupt",
  "id": "GHSA-gc58-f6gq-w9xv",
  "modified": "2025-01-08T18:30:41Z",
  "published": "2024-02-28T09:30:38Z",
  "references": [
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2021-47019"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/b13cbc536990ff609afa878b6211cd6f6265ba60"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/fe3fccde8870764ba3e60610774bd7bc9f8faeff"
    }
  ],
  "schema_version": "1.4.0",
  "severity": [
    {
      "score": "CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H",
      "type": "CVSS_V3"
    }
  ]
}

CVE-2021-47019 (GCVE-0-2021-47019)

Vulnerability from cvelistv5 – Published: 2024-02-28 08:13 – Updated: 2026-05-11 13:46

Title

mt76: mt7921: fix possible invalid register access

Summary

In the Linux kernel, the following vulnerability has been resolved: mt76: mt7921: fix possible invalid register access Disable the interrupt and synchronze for the pending irq handlers to ensure the irq tasklet is not being scheduled after the suspend to avoid the possible invalid register access acts when the host pcie controller is suspended. [17932.910534] mt7921e 0000:01:00.0: pci_pm_suspend+0x0/0x22c returned 0 after 21375 usecs [17932.910590] pcieport 0000:00:00.0: calling pci_pm_suspend+0x0/0x22c @ 18565, parent: pci0000:00 [17932.910602] pcieport 0000:00:00.0: pci_pm_suspend+0x0/0x22c returned 0 after 8 usecs [17932.910671] mtk-pcie 11230000.pcie: calling platform_pm_suspend+0x0/0x60 @ 22783, parent: soc [17932.910674] mtk-pcie 11230000.pcie: platform_pm_suspend+0x0/0x60 returned 0 after 0 usecs ... 17933.615352] x1 : 00000000000d4200 x0 : ffffff8269ca2300 [17933.620666] Call trace: [17933.623127] mt76_mmio_rr+0x28/0xf0 [mt76] [17933.627234] mt7921_rr+0x38/0x44 [mt7921e] [17933.631339] mt7921_irq_tasklet+0x54/0x1d8 [mt7921e] [17933.636309] tasklet_action_common+0x12c/0x16c [17933.640754] tasklet_action+0x24/0x2c [17933.644418] __do_softirq+0x16c/0x344 [17933.648082] irq_exit+0xa8/0xac [17933.651224] scheduler_ipi+0xd4/0x148 [17933.654890] handle_IPI+0x164/0x2d4 [17933.658379] gic_handle_irq+0x140/0x178 [17933.662216] el1_irq+0xb8/0x180 [17933.665361] cpuidle_enter_state+0xf8/0x204 [17933.669544] cpuidle_enter+0x38/0x4c [17933.673122] do_idle+0x1a4/0x2a8 [17933.676352] cpu_startup_entry+0x24/0x28 [17933.680276] rest_init+0xd4/0xe0 [17933.683508] arch_call_rest_init+0x10/0x18 [17933.687606] start_kernel+0x340/0x3b4 [17933.691279] Code: aa0003f5 d503201f f953eaa8 8b344108 (b9400113) [17933.697373] ---[ end trace a24b8e26ffbda3c5 ]--- [17933.767846] Kernel panic - not syncing: Fatal exception in interrupt

Severity

No CVSS data available.

SSVC

Exploitation: none Automatable: no Technical Impact: partial

CISA Coordinator · CISA-ADP (v2.0.3)

Decision recorded 2024-03-05 22:18 UTC

Assigner

Linux CNA under the mitre root

CNA scorecard D 53/100 over 6856 records in the last 180 days details

References

2 references

URL	Tags
https://git.kernel.org/stable/c/b13cbc536990ff609…
https://git.kernel.org/stable/c/fe3fccde8870764ba…

Impacted products

2 products

Vendor	Product	Version
Linux	Linux	Affected: ffa1bf97425bd511b105ce769976e20a845a71e9 , < b13cbc536990ff609afa878b6211cd6f6265ba60 (git) Affected: ffa1bf97425bd511b105ce769976e20a845a71e9 , < fe3fccde8870764ba3e60610774bd7bc9f8faeff (git)
Linux	Linux	Affected: 5.12 Unaffected: 0 , < 5.12 (semver) Unaffected: 5.12.4 , ≤ 5.12.* (semver) Unaffected: 5.13 , ≤ * (original_commit_for_fix)

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  "containers": {
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        "metrics": [
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              "content": {
                "id": "CVE-2021-47019",
                "options": [
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                    "Exploitation": "none"
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                  },
                  {
                    "Technical Impact": "partial"
                  }
                ],
                "role": "CISA Coordinator",
                "timestamp": "2024-03-05T22:18:10.131822Z",
                "version": "2.0.3"
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              "type": "ssvc"
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        "providerMetadata": {
          "dateUpdated": "2024-06-04T17:14:14.618Z",
          "orgId": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
          "shortName": "CISA-ADP"
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        "title": "CVE Program Container"
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    "cna": {
      "affected": [
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          "defaultStatus": "unaffected",
          "product": "Linux",
          "programFiles": [
            "drivers/net/wireless/mediatek/mt76/mt7921/pci.c"
          ],
          "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
          "vendor": "Linux",
          "versions": [
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              "version": "ffa1bf97425bd511b105ce769976e20a845a71e9",
              "versionType": "git"
            },
            {
              "lessThan": "fe3fccde8870764ba3e60610774bd7bc9f8faeff",
              "status": "affected",
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          "product": "Linux",
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          "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
          "vendor": "Linux",
          "versions": [
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    "cveId": "CVE-2021-47019",
    "datePublished": "2024-02-28T08:13:33.984Z",
    "dateReserved": "2024-02-27T18:42:55.954Z",
    "dateUpdated": "2026-05-11T13:46:23.332Z",
    "state": "PUBLISHED"
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  "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.

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