CVE-2022-49976

{"id": "CVE-2022-49976", "cveTags": [], "metrics": {"cvssMetricV31": [{"type": "Primary", "source": "nvd@nist.gov", "cvssData": {"scope": "UNCHANGED", "version": "3.1", "baseScore": 5.5, "attackVector": "LOCAL", "baseSeverity": "MEDIUM", "vectorString": "CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H", "integrityImpact": "NONE", "userInteraction": "NONE", "attackComplexity": "LOW", "availabilityImpact": "HIGH", "privilegesRequired": "LOW", "confidentialityImpact": "NONE"}, "impactScore": 3.6, "exploitabilityScore": 1.8}]}, "published": "2025-06-18T11:15:25.007", "references": [{"url": "https://git.kernel.org/stable/c/2986c51540ed50ac654ffb5a772e546c02628c91", "tags": ["Patch"], "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67"}, {"url": "https://git.kernel.org/stable/c/c77b724cddfb8ac1291a60e3e68937e62cbfc5e0", "tags": ["Patch"], "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67"}], "vulnStatus": "Analyzed", "weaknesses": [{"type": "Primary", "source": "nvd@nist.gov", "description": [{"lang": "en", "value": "NVD-CWE-noinfo"}]}], "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 'irq/75', leaking at least 'MSSL0001:00'\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."}, {"lang": "es", "value": "En el kernel de Linux, se ha resuelto la siguiente vulnerabilidad: platform/x86: x86-android-tablets: Reparar la pantalla t\u00e1ctil rota en Chuwi Hi8 con BIOS de Windows El manejo de x86-android-tablets para Chuwi Hi8 solo es necesario con el BIOS de Android y est\u00e1 causando problemas con la versi\u00f3n del BIOS de Windows. Espec\u00edficamente cuando se intenta registrar la pantalla t\u00e1ctil ya presente, x86_acpi_irq_helper_get() llama a acpi_unregister_gsi(), esto interrumpe el funcionamiento de la pantalla t\u00e1ctil y tambi\u00e9n conduce a un error: [ 14.248946] ------------[ cortar aqu\u00ed ]------------ [ 14.248954] remove_proc_entry: eliminando el directorio no vac\u00edo 'irq/75', filtrando al menos 'MSSL0001:00' [ 14.248983] ADVERTENCIA: CPU: 3 PID: 440 en 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] Agregue una devoluci\u00f3n de llamada de inicio para Chuwi Hi8, que detecta cuando el BIOS de Windows est\u00e1 en uso y sale con -ENODEV en ese caso, solucionando esto."}], "lastModified": "2025-11-13T21:29:19.983", "configurations": [{"nodes": [{"negate": false, "cpeMatch": [{"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "vulnerable": true, "matchCriteriaId": "A309BDF8-F19D-4F9F-BC25-3D4A663F3A50", "versionEndExcluding": "5.19.8", "versionStartIncluding": "5.17.1"}, {"criteria": "cpe:2.3:o:linux:linux_kernel:5.17:-:*:*:*:*:*:*", "vulnerable": true, "matchCriteriaId": "A59F7FD3-F505-48BD-8875-F07A33F42F6C"}, {"criteria": "cpe:2.3:o:linux:linux_kernel:5.17:rc3:*:*:*:*:*:*", "vulnerable": true, "matchCriteriaId": "C030FA3D-03F4-4FB9-9DBF-D08E5CAC51AA"}, {"criteria": "cpe:2.3:o:linux:linux_kernel:5.17:rc4:*:*:*:*:*:*", "vulnerable": true, "matchCriteriaId": "B2D2677C-5389-4AE9-869D-0F881E80D923"}, {"criteria": "cpe:2.3:o:linux:linux_kernel:5.17:rc5:*:*:*:*:*:*", "vulnerable": true, "matchCriteriaId": "EFA3917C-C322-4D92-912D-ECE45B2E7416"}, {"criteria": "cpe:2.3:o:linux:linux_kernel:5.17:rc6:*:*:*:*:*:*", "vulnerable": true, "matchCriteriaId": "BED18363-5ABC-4639-8BBA-68E771E5BB3F"}, {"criteria": "cpe:2.3:o:linux:linux_kernel:5.17:rc7:*:*:*:*:*:*", "vulnerable": true, "matchCriteriaId": "7F635F96-FA0A-4769-ADE8-232B3AC9116D"}, {"criteria": "cpe:2.3:o:linux:linux_kernel:5.17:rc8:*:*:*:*:*:*", "vulnerable": true, "matchCriteriaId": "FD39FE73-2A9D-4C92-AE7A-CA22F84B228D"}, {"criteria": "cpe:2.3:o:linux:linux_kernel:6.0:rc1:*:*:*:*:*:*", "vulnerable": true, "matchCriteriaId": "E8BD11A3-8643-49B6-BADE-5029A0117325"}, {"criteria": "cpe:2.3:o:linux:linux_kernel:6.0:rc2:*:*:*:*:*:*", "vulnerable": true, "matchCriteriaId": "5F0AD220-F6A9-4012-8636-155F1B841FAD"}, {"criteria": "cpe:2.3:o:linux:linux_kernel:6.0:rc3:*:*:*:*:*:*", "vulnerable": true, "matchCriteriaId": "A46498B3-78E1-4623-AAE1-94D29A42BE4E"}], "operator": "OR"}]}], "sourceIdentifier": "416baaa9-dc9f-4396-8d5f-8c081fb06d67"}