Vulnerability-Lookup

GHSA-2CR7-6FPW-9HFX

Vulnerability from github – Published: 2025-06-18 12:30 – Updated: 2025-11-13 21:31

Details

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

platform/x86: x86-android-tablets: Fix broken touchscreen on Chuwi Hi8 with Windows BIOS

The x86-android-tablets handling for the Chuwi Hi8 is only necessary with the Android BIOS and it is causing problems with the Windows BIOS version.

Specifically when trying to register the already present touchscreen x86_acpi_irq_helper_get() calls acpi_unregister_gsi(), this breaks the working of the touchscreen and also leads to an oops:

[ 14.248946] ------------[ cut here ]------------ [ 14.248954] remove_proc_entry: removing non-empty directory 'irq/75', leaking at least 'MSSL0001:00' [ 14.248983] WARNING: CPU: 3 PID: 440 at fs/proc/generic.c:718 remove_proc_entry ... [ 14.249293] unregister_irq_proc+0xe0/0x100 [ 14.249305] free_desc+0x29/0x70 [ 14.249312] irq_free_descs+0x4b/0x80 [ 14.249320] mp_unmap_irq+0x5c/0x60 [ 14.249329] acpi_unregister_gsi_ioapic+0x2a/0x40 [ 14.249338] x86_acpi_irq_helper_get+0x4b/0x190 [x86_android_tablets] [ 14.249355] x86_android_tablet_init+0x178/0xe34 [x86_android_tablets]

Add an init callback for the Chuwi Hi8, which detects when the Windows BIOS is in use and exits with -ENODEV in that case, fixing this.

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-2022-49976"
  ],
  "database_specific": {
    "cwe_ids": [],
    "github_reviewed": false,
    "github_reviewed_at": null,
    "nvd_published_at": "2025-06-18T11:15:25Z",
    "severity": "MODERATE"
  },
  "details": "In the Linux kernel, the following vulnerability has been resolved:\n\nplatform/x86: x86-android-tablets: Fix broken touchscreen on Chuwi Hi8 with Windows BIOS\n\nThe x86-android-tablets handling for the Chuwi Hi8 is only necessary with\nthe Android BIOS and it is causing problems with the Windows BIOS version.\n\nSpecifically when trying to register the already present touchscreen\nx86_acpi_irq_helper_get() calls acpi_unregister_gsi(), this breaks\nthe working of the touchscreen and also leads to an oops:\n\n[   14.248946] ------------[ cut here ]------------\n[   14.248954] remove_proc_entry: removing non-empty directory \u0027irq/75\u0027, leaking at least \u0027MSSL0001:00\u0027\n[   14.248983] WARNING: CPU: 3 PID: 440 at fs/proc/generic.c:718 remove_proc_entry\n...\n[   14.249293]  unregister_irq_proc+0xe0/0x100\n[   14.249305]  free_desc+0x29/0x70\n[   14.249312]  irq_free_descs+0x4b/0x80\n[   14.249320]  mp_unmap_irq+0x5c/0x60\n[   14.249329]  acpi_unregister_gsi_ioapic+0x2a/0x40\n[   14.249338]  x86_acpi_irq_helper_get+0x4b/0x190 [x86_android_tablets]\n[   14.249355]  x86_android_tablet_init+0x178/0xe34 [x86_android_tablets]\n\nAdd an init callback for the Chuwi Hi8, which detects when the Windows BIOS\nis in use and exits with -ENODEV in that case, fixing this.",
  "id": "GHSA-2cr7-6fpw-9hfx",
  "modified": "2025-11-13T21:31:17Z",
  "published": "2025-06-18T12:30:39Z",
  "references": [
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2022-49976"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/2986c51540ed50ac654ffb5a772e546c02628c91"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/c77b724cddfb8ac1291a60e3e68937e62cbfc5e0"
    }
  ],
  "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-2022-49976 (GCVE-0-2022-49976)

Vulnerability from cvelistv5 – Published: 2025-06-18 11:00 – Updated: 2025-06-18 11:00

Title

platform/x86: x86-android-tablets: Fix broken touchscreen on Chuwi Hi8 with Windows BIOS

Summary

In the Linux kernel, the following vulnerability has been resolved: platform/x86: x86-android-tablets: Fix broken touchscreen on Chuwi Hi8 with Windows BIOS The x86-android-tablets handling for the Chuwi Hi8 is only necessary with the Android BIOS and it is causing problems with the Windows BIOS version. Specifically when trying to register the already present touchscreen x86_acpi_irq_helper_get() calls acpi_unregister_gsi(), this breaks the working of the touchscreen and also leads to an oops: [ 14.248946] ------------[ cut here ]------------ [ 14.248954] remove_proc_entry: removing non-empty directory 'irq/75', leaking at least 'MSSL0001:00' [ 14.248983] WARNING: CPU: 3 PID: 440 at fs/proc/generic.c:718 remove_proc_entry ... [ 14.249293] unregister_irq_proc+0xe0/0x100 [ 14.249305] free_desc+0x29/0x70 [ 14.249312] irq_free_descs+0x4b/0x80 [ 14.249320] mp_unmap_irq+0x5c/0x60 [ 14.249329] acpi_unregister_gsi_ioapic+0x2a/0x40 [ 14.249338] x86_acpi_irq_helper_get+0x4b/0x190 [x86_android_tablets] [ 14.249355] x86_android_tablet_init+0x178/0xe34 [x86_android_tablets] Add an init callback for the Chuwi Hi8, which detects when the Windows BIOS is in use and exits with -ENODEV in that case, fixing this.

Severity ?

No CVSS data available.

Assigner

Linux

References

URL

Tags

	https://git.kernel.org/stable/c/c77b724cddfb8ac12…
	https://git.kernel.org/stable/c/2986c51540ed50ac6…

Impacted products

Vendor

Product

Version

Linux

Affected: 84c2dcdd475f3f5d1d30c87404cafba4dd4b75ec , < c77b724cddfb8ac1291a60e3e68937e62cbfc5e0 (git)
Affected: 84c2dcdd475f3f5d1d30c87404cafba4dd4b75ec , < 2986c51540ed50ac654ffb5a772e546c02628c91 (git)

Linux

Affected: 5.17
Unaffected: 0 , < 5.17 (semver)
Unaffected: 5.19.8 , ≤ 5.19.* (semver)
Unaffected: 6.0 , ≤ * (original_commit_for_fix)

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{
  "containers": {
    "cna": {
      "affected": [
        {
          "defaultStatus": "unaffected",
          "product": "Linux",
          "programFiles": [
            "drivers/platform/x86/x86-android-tablets.c"
          ],
          "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
          "vendor": "Linux",
          "versions": [
            {
              "lessThan": "c77b724cddfb8ac1291a60e3e68937e62cbfc5e0",
              "status": "affected",
              "version": "84c2dcdd475f3f5d1d30c87404cafba4dd4b75ec",
              "versionType": "git"
            },
            {
              "lessThan": "2986c51540ed50ac654ffb5a772e546c02628c91",
              "status": "affected",
              "version": "84c2dcdd475f3f5d1d30c87404cafba4dd4b75ec",
              "versionType": "git"
            }
          ]
        },
        {
          "defaultStatus": "affected",
          "product": "Linux",
          "programFiles": [
            "drivers/platform/x86/x86-android-tablets.c"
          ],
          "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
          "vendor": "Linux",
          "versions": [
            {
              "status": "affected",
              "version": "5.17"
            },
            {
              "lessThan": "5.17",
              "status": "unaffected",
              "version": "0",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "5.19.*",
              "status": "unaffected",
              "version": "5.19.8",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "*",
              "status": "unaffected",
              "version": "6.0",
              "versionType": "original_commit_for_fix"
            }
          ]
        }
      ],
      "cpeApplicability": [
        {
          "nodes": [
            {
              "cpeMatch": [
                {
                  "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                  "versionEndExcluding": "5.19.8",
                  "versionStartIncluding": "5.17",
                  "vulnerable": true
                },
                {
                  "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                  "versionEndExcluding": "6.0",
                  "versionStartIncluding": "5.17",
                  "vulnerable": true
                }
              ],
              "negate": false,
              "operator": "OR"
            }
          ]
        }
      ],
      "descriptions": [
        {
          "lang": "en",
          "value": "In the Linux kernel, the following vulnerability has been resolved:\n\nplatform/x86: x86-android-tablets: Fix broken touchscreen on Chuwi Hi8 with Windows BIOS\n\nThe x86-android-tablets handling for the Chuwi Hi8 is only necessary with\nthe Android BIOS and it is causing problems with the Windows BIOS version.\n\nSpecifically when trying to register the already present touchscreen\nx86_acpi_irq_helper_get() calls acpi_unregister_gsi(), this breaks\nthe working of the touchscreen and also leads to an oops:\n\n[   14.248946] ------------[ cut here ]------------\n[   14.248954] remove_proc_entry: removing non-empty directory \u0027irq/75\u0027, leaking at least \u0027MSSL0001:00\u0027\n[   14.248983] WARNING: CPU: 3 PID: 440 at fs/proc/generic.c:718 remove_proc_entry\n...\n[   14.249293]  unregister_irq_proc+0xe0/0x100\n[   14.249305]  free_desc+0x29/0x70\n[   14.249312]  irq_free_descs+0x4b/0x80\n[   14.249320]  mp_unmap_irq+0x5c/0x60\n[   14.249329]  acpi_unregister_gsi_ioapic+0x2a/0x40\n[   14.249338]  x86_acpi_irq_helper_get+0x4b/0x190 [x86_android_tablets]\n[   14.249355]  x86_android_tablet_init+0x178/0xe34 [x86_android_tablets]\n\nAdd an init callback for the Chuwi Hi8, which detects when the Windows BIOS\nis in use and exits with -ENODEV in that case, fixing this."
        }
      ],
      "providerMetadata": {
        "dateUpdated": "2025-06-18T11:00:38.959Z",
        "orgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
        "shortName": "Linux"
      },
      "references": [
        {
          "url": "https://git.kernel.org/stable/c/c77b724cddfb8ac1291a60e3e68937e62cbfc5e0"
        },
        {
          "url": "https://git.kernel.org/stable/c/2986c51540ed50ac654ffb5a772e546c02628c91"
        }
      ],
      "title": "platform/x86: x86-android-tablets: Fix broken touchscreen on Chuwi Hi8 with Windows BIOS",
      "x_generator": {
        "engine": "bippy-1.2.0"
      }
    }
  },
  "cveMetadata": {
    "assignerOrgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
    "assignerShortName": "Linux",
    "cveId": "CVE-2022-49976",
    "datePublished": "2025-06-18T11:00:38.959Z",
    "dateReserved": "2025-06-18T10:57:27.385Z",
    "dateUpdated": "2025-06-18T11:00:38.959Z",
    "state": "PUBLISHED"
  },
  "dataType": "CVE_RECORD",
  "dataVersion": "5.1"
}

Sightings

Author	Source	Type	Date

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.

Action not permitted

GHSA-2CR7-6FPW-9HFX

CVE-2022-49976 (GCVE-0-2022-49976)

Tags

Sightings

Nomenclature