CVE-2022-49792

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there is no network or physical-insertion attack surface.\nAC:L - Every probe of the mp2629_adc cell deterministically walks past the unterminated mp2629_adc_maps[] in iio_map_array_register(); there is no race or attacker-uncontrollable precondition.\nPR:L - The OOB read and poisoning of the global iio_map_list occur during normal boot-time probe with no capability check, so an unprivileged local user on an MP2629-equipped device is exposed to the corrupted state.\nUI:N - The bug fires automatically when the MFD core instantiates the mp2629_adc cell; no victim action such as a mount or file open is required.\nS:U - The OOB read, corrupted iio_map_list, and any later wild-pointer dereference stay within the kernel's security authority with no VM, IOMMU, or sandbox boundary crossed.\nC:H - This is an unbounded OOB read through kernel .data until a NULL is found, and OOB-derived pointers are later strcmp()'d in iio_channel_get_sys()/iio_channel_get_all(), reading arbitrary kernel memory.\nI:L - Bogus entries built from OOB memory are injected into iio_map_list and can propagate garbage consumer_data to consumers, corrupting kernel state, but the array is only read so there is no OOB write or control-flow hijack primitive.\nA:H - Garbage map entries carry non-string values that strcmp() later dereferences during charger/IIO consumer lookup, causing a kernel oops or panic."}]}], "affected": [{"product": "Linux", "vendor": "Linux", "defaultStatus": "unaffected", "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git", "programFiles": ["drivers/iio/adc/mp2629_adc.c"], "versions": [{"version": "7abd9fb6468225f5c7f83149ce279cc1a912a68a", "lessThan": "d95b85c5084ad70011988861ee864529eefa1da0", "status": "affected", "versionType": "git"}, {"version": "7abd9fb6468225f5c7f83149ce279cc1a912a68a", "lessThan": "1678d4abb2dc2ca3b05b998a9d88616976e4f947", "status": "affected", "versionType": "git"}, {"version": "7abd9fb6468225f5c7f83149ce279cc1a912a68a", "lessThan": "399b2105a2240e730b9f3880bd8f154247539aa7", "status": "affected", "versionType": "git"}, {"version": "7abd9fb6468225f5c7f83149ce279cc1a912a68a", "lessThan": "ca1547ab15f48dc81624183ae17a2fd1bad06dfc", "status": "affected", "versionType": "git"}]}, {"product": "Linux", "vendor": "Linux", "defaultStatus": "affected", "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git", "programFiles": ["drivers/iio/adc/mp2629_adc.c"], "versions": [{"version": "5.8", "status": "affected"}, {"version": "0", "lessThan": "5.8", "status": "unaffected", "versionType": "semver"}, {"version": "5.10.156", "lessThanOrEqual": "5.10.*", "status": "unaffected", "versionType": "semver"}, {"version": "5.15.80", "lessThanOrEqual": "5.15.*", "status": "unaffected", "versionType": "semver"}, {"version": "6.0.10", "lessThanOrEqual": "6.0.*", "status": "unaffected", "versionType": "semver"}, {"version": "6.1", "lessThanOrEqual": "*", "status": "unaffected", "versionType": "original_commit_for_fix"}]}], "cpeApplicability": [{"nodes": [{"operator": "OR", "negate": false, "cpeMatch": [{"vulnerable": true, "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "versionStartIncluding": "5.8", "versionEndExcluding": "5.10.156"}, {"vulnerable": true, "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "versionStartIncluding": "5.8", "versionEndExcluding": "5.15.80"}, {"vulnerable": true, "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "versionStartIncluding": "5.8", "versionEndExcluding": "6.0.10"}, {"vulnerable": true, "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "versionStartIncluding": "5.8", "versionEndExcluding": "6.1"}]}]}], "references": [{"url": "https://git.kernel.org/stable/c/d95b85c5084ad70011988861ee864529eefa1da0"}, {"url": "https://git.kernel.org/stable/c/1678d4abb2dc2ca3b05b998a9d88616976e4f947"}, {"url": "https://git.kernel.org/stable/c/399b2105a2240e730b9f3880bd8f154247539aa7"}, {"url": "https://git.kernel.org/stable/c/ca1547ab15f48dc81624183ae17a2fd1bad06dfc"}], "title": "iio: adc: mp2629: fix potential array out of bound access", "x_generator": {"engine": "bippy-1.2.0"}}}}

{}

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Se agrega centinela al final de los mapas para evitar un posible acceso fuera de los l\u00edmites de la matriz en el n\u00facleo iio."}], "id": "CVE-2022-49792", "lastModified": "2026-08-04T10:17:56.543", "metrics": {"cvssMetricV31": [{"cvssData": {"attackComplexity": "LOW", "attackVector": "LOCAL", "availabilityImpact": "HIGH", "baseScore": 7.3, "baseSeverity": "HIGH", "confidentialityImpact": "HIGH", "integrityImpact": "LOW", "privilegesRequired": "LOW", "scope": "UNCHANGED", "userInteraction": "NONE", "vectorString": "CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:L/A:H", "version": "3.1"}, "exploitabilityScore": 1.8, "impactScore": 5.5, "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "type": "Secondary"}, {"cvssData": {"attackComplexity": "LOW", "attackVector": "LOCAL", "availabilityImpact": "HIGH", "baseScore": 7.1, "baseSeverity": "HIGH", "confidentialityImpact": "HIGH", "integrityImpact": "NONE", "privilegesRequired": "LOW", "scope": "UNCHANGED", "userInteraction": "NONE", "vectorString": "CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:H", "version": "3.1"}, "exploitabilityScore": 1.8, "impactScore": 5.2, "source": "nvd@nist.gov", "type": "Primary"}]}, "published": "2025-05-01T15:16:02.460", "references": [{"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "tags": ["Patch"], "url": "https://git.kernel.org/stable/c/1678d4abb2dc2ca3b05b998a9d88616976e4f947"}, {"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "tags": ["Patch"], "url": "https://git.kernel.org/stable/c/399b2105a2240e730b9f3880bd8f154247539aa7"}, {"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "tags": ["Patch"], "url": "https://git.kernel.org/stable/c/ca1547ab15f48dc81624183ae17a2fd1bad06dfc"}, {"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "tags": ["Patch"], "url": "https://git.kernel.org/stable/c/d95b85c5084ad70011988861ee864529eefa1da0"}], "sourceIdentifier": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "vulnStatus": "Modified", "weaknesses": [{"description": [{"lang": "en", "value": "CWE-125"}], "source": "nvd@nist.gov", "type": "Primary"}]}

{"bugzilla": {"description": "kernel: iio: adc: mp2629: fix potential array out of bound access", "id": "2363488", "url": "https://bugzilla.redhat.com/show_bug.cgi?id=2363488"}, "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: adc: mp2629: fix potential array out of bound access\nAdd sentinel at end of maps to avoid potential array out of\nbound access in iio core."], "name": "CVE-2022-49792", "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": "2025-05-01T00:00:00Z", "references": ["https://www.cve.org/CVERecord?id=CVE-2022-49792\nhttps://nvd.nist.gov/vuln/detail/CVE-2022-49792\nhttps://lore.kernel.org/linux-cve-announce/2025050123-CVE-2022-49792-7fd6@gregkh/T"], "threat_severity": "Moderate"}

{"created": "2025-07-13T11:14:41.608102+00:00", "updated": "2025-07-13T11:14:41.608188+00:00", "vendors": ["linux", "linux$PRODUCT$linux_kernel"]}