CVE-2022-49285

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{}

{"affected": [{"affectedData": [{"defaultStatus": "unaffected", "product": "Linux", "programFiles": ["drivers/iio/accel/mma8452.c"], "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git", "vendor": "Linux", "versions": [{"lessThan": "4c0bb583a4444cce224e8661090cbffc98e2fe07", "status": "affected", "version": "c3cdd6e48e35b7a02f28e301ef30a87ff3cd6527", "versionType": "git"}, {"lessThan": "d2d9ebdbff79d87d27652578e6d1638ad3b5f3bf", "status": "affected", "version": "c3cdd6e48e35b7a02f28e301ef30a87ff3cd6527", "versionType": "git"}, {"lessThan": "c87b7b12f48db86ac9909894f4dc0107d7df6375", "status": "affected", "version": "c3cdd6e48e35b7a02f28e301ef30a87ff3cd6527", "versionType": "git"}]}, {"defaultStatus": "affected", "product": "Linux", "programFiles": ["drivers/iio/accel/mma8452.c"], "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git", "vendor": "Linux", "versions": [{"status": "affected", "version": "4.4"}, {"lessThan": "4.4", "status": "unaffected", "version": "0", "versionType": "semver"}, {"lessThanOrEqual": "5.15.*", "status": "unaffected", "version": "5.15.54", "versionType": "semver"}, {"lessThanOrEqual": "5.17.*", "status": "unaffected", "version": "5.17.2", "versionType": "semver"}, {"lessThanOrEqual": "*", "status": "unaffected", "version": "5.18", "versionType": "original_commit_for_fix"}]}], "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67"}], "configurations": [{"nodes": [{"cpeMatch": [{"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "matchCriteriaId": "9E8D5013-720C-47BB-99C7-6FFAC63DA99A", "versionEndExcluding": "5.15.54", "versionStartIncluding": "4.4", "vulnerable": true}, {"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "matchCriteriaId": "375454EC-B553-4CC9-BF9D-4A8ADC4F34BD", "versionEndExcluding": "5.17.2", "versionStartIncluding": "5.16", "vulnerable": true}], "negate": false, "operator": "OR"}]}], "cveTags": [], "descriptions": [{"lang": "en", "value": "In the Linux kernel, the following vulnerability has been resolved:\n\niio: accel: mma8452: use the correct logic to get mma8452_data\n\nThe original logic to get mma8452_data is wrong, the *dev point to\nthe device belong to iio_dev. we can't use this dev to find the\ncorrect i2c_client. The original logic happen to work because it\nfinally use dev->driver_data to get iio_dev. Here use the API\nto_i2c_client() is wrong and make reader confuse. To correct the\nlogic, it should be like this\n\n struct mma8452_data *data = iio_priv(dev_get_drvdata(dev));\n\nBut after commit 8b7651f25962 (\"iio: iio_device_alloc(): Remove\nunnecessary self drvdata\"), the upper logic also can't work.\nWhen try to show the avialable scale in userspace, will meet kernel\ndump, kernel handle NULL pointer dereference.\n\nSo use dev_to_iio_dev() to correct the logic.\n\nDual fixes tags as the second reflects when the bug was exposed, whilst\nthe first reflects when the original bug was introduced."}, {"lang": "es", "value": "En el kernel de Linux, se ha resuelto la siguiente vulnerabilidad: iio: accel: mma8452: usa la l\u00f3gica correcta para obtener mma8452_data La l\u00f3gica original para obtener mma8452_data es incorrecta, el punto *dev al dispositivo pertenece a iio_dev. No podemos usar este dev para encontrar el i2c_client correcto. La l\u00f3gica original funcion\u00f3 porque finalmente us\u00f3 dev->driver_data para obtener iio_dev. Aqu\u00ed, usar la API to_i2c_client() es incorrecto y confunde al lector. Para corregir la l\u00f3gica, deber\u00eda ser as\u00ed struct mma8452_data *data = iio_priv(dev_get_drvdata(dev)); Pero despu\u00e9s de el commit 8b7651f25962 (\"iio: iio_device_alloc(): eliminar drvdata propios innecesarios\"), la l\u00f3gica superior tampoco puede funcionar. Cuando se intenta mostrar la escala disponible en el espacio de usuario, se produce un volcado del kernel y una desreferencia del puntero NULL del manejador del kernel. Por lo tanto, se utiliza dev_to_iio_dev() para corregir la l\u00f3gica. Dual corrige las etiquetas, ya que la segunda refleja cu\u00e1ndo se expuso el error, mientras que la primera refleja cu\u00e1ndo se introdujo el error original."}], "id": "CVE-2022-49285", "lastModified": "2026-06-17T05:17:36.020", "metrics": {"cvssMetricV31": [{"cvssData": {"attackComplexity": "LOW", "attackVector": "LOCAL", "availabilityImpact": "HIGH", "baseScore": 5.5, "baseSeverity": "MEDIUM", "confidentialityImpact": "NONE", "integrityImpact": "NONE", "privilegesRequired": "LOW", "scope": "UNCHANGED", "userInteraction": "NONE", "vectorString": "CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H", "version": "3.1"}, "exploitabilityScore": 1.8, "impactScore": 3.6, "source": "nvd@nist.gov", "type": "Primary"}]}, "published": "2025-02-26T07:01:05.360", "references": [{"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "tags": ["Patch"], "url": "https://git.kernel.org/stable/c/4c0bb583a4444cce224e8661090cbffc98e2fe07"}, {"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "tags": ["Patch"], "url": "https://git.kernel.org/stable/c/c87b7b12f48db86ac9909894f4dc0107d7df6375"}, {"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "tags": ["Patch"], "url": "https://git.kernel.org/stable/c/d2d9ebdbff79d87d27652578e6d1638ad3b5f3bf"}], "sourceIdentifier": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "vulnStatus": "Analyzed", "weaknesses": [{"description": [{"lang": "en", "value": "CWE-476"}], "source": "nvd@nist.gov", "type": "Primary"}]}

{"bugzilla": {"description": "kernel: iio: accel: mma8452: use the correct logic to get mma8452_data", "id": "2348048", "url": "https://bugzilla.redhat.com/show_bug.cgi?id=2348048"}, "csaw": false, "cvss3": {"cvss3_base_score": "5.5", "cvss3_scoring_vector": "CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H", "status": "draft"}, "details": ["In the Linux kernel, the following vulnerability has been resolved:\niio: accel: mma8452: use the correct logic to get mma8452_data\nThe original logic to get mma8452_data is wrong, the *dev point to\nthe device belong to iio_dev. we can't use this dev to find the\ncorrect i2c_client. The original logic happen to work because it\nfinally use dev->driver_data to get iio_dev. Here use the API\nto_i2c_client() is wrong and make reader confuse. To correct the\nlogic, it should be like this\nstruct mma8452_data *data = iio_priv(dev_get_drvdata(dev));\nBut after commit 8b7651f25962 (\"iio: iio_device_alloc(): Remove\nunnecessary self drvdata\"), the upper logic also can't work.\nWhen try to show the avialable scale in userspace, will meet kernel\ndump, kernel handle NULL pointer dereference.\nSo use dev_to_iio_dev() to correct the logic.\nDual fixes tags as the second reflects when the bug was exposed, whilst\nthe first reflects when the original bug was introduced."], "name": "CVE-2022-49285", "package_state": [{"cpe": "cpe:/o:redhat:enterprise_linux:10", "fix_state": "Not affected", "package_name": "kernel", "product_name": "Red Hat Enterprise Linux 10"}, {"cpe": "cpe:/o:redhat:enterprise_linux:6", "fix_state": "Not affected", "package_name": "kernel", "product_name": "Red Hat Enterprise Linux 6"}, {"cpe": "cpe:/o:redhat:enterprise_linux:7", "fix_state": "Not affected", "package_name": "kernel", "product_name": "Red Hat Enterprise Linux 7"}, {"cpe": "cpe:/o:redhat:enterprise_linux:7", "fix_state": "Not affected", "package_name": "kernel-rt", "product_name": "Red Hat Enterprise Linux 7"}, {"cpe": "cpe:/o:redhat:enterprise_linux:8", "fix_state": "Not affected", "package_name": "kernel", "product_name": "Red Hat Enterprise Linux 8"}, {"cpe": "cpe:/o:redhat:enterprise_linux:8", "fix_state": "Not affected", "package_name": "kernel-rt", "product_name": "Red Hat Enterprise Linux 8"}, {"cpe": "cpe:/o:redhat:enterprise_linux:9", "fix_state": "Not affected", "package_name": "kernel", "product_name": "Red Hat Enterprise Linux 9"}, {"cpe": "cpe:/o:redhat:enterprise_linux:9", "fix_state": "Not affected", "package_name": "kernel-rt", "product_name": "Red Hat Enterprise Linux 9"}], "public_date": "2025-02-26T00:00:00Z", "references": ["https://www.cve.org/CVERecord?id=CVE-2022-49285\nhttps://nvd.nist.gov/vuln/detail/CVE-2022-49285\nhttps://lore.kernel.org/linux-cve-announce/2025022632-CVE-2022-49285-627c@gregkh/T"], "threat_severity": "Moderate"}

{"created": "2025-07-12T22:10:04.118710+00:00", "updated": "2025-07-12T22:10:04.118785+00:00", "vendors": ["linux", "linux$PRODUCT$linux_kernel"]}