180 lines
9.1 KiB
JSON
180 lines
9.1 KiB
JSON
{
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"dataType": "CVE_RECORD",
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"dataVersion": "5.2",
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"cveMetadata": {
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"cveId": "CVE-2022-49792",
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"assignerOrgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
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"state": "PUBLISHED",
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"assignerShortName": "Linux",
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"dateReserved": "2025-05-01T14:05:17.224Z",
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"datePublished": "2025-05-01T14:09:23.655Z",
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"dateUpdated": "2026-08-05T08:56:21.015Z"
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},
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"cna": {
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"shortName": "Linux",
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"dateUpdated": "2026-08-05T08:56:21.015Z"
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},
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"descriptions": [
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{
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"lang": "en",
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"value": "In the Linux kernel, the following vulnerability has been resolved:\n\niio: adc: mp2629: fix potential array out of bound access\n\nAdd sentinel at end of maps to avoid potential array out of\nbound access in iio core."
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}
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],
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"baseScore": 7.3,
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"baseSeverity": "HIGH"
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},
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"scenarios": [
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{
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"lang": "en",
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"value": "AV:L - The vulnerable path is mp2629_adc_probe() on an on-board I2C PMIC (MFD cell), reached at boot or via local module load/sysfs bind; 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."
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}
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]
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}
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],
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"affected": [
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{
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"product": "Linux",
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"vendor": "Linux",
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"defaultStatus": "unaffected",
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"repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
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"programFiles": [
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"drivers/iio/adc/mp2629_adc.c"
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],
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},
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{
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"product": "Linux",
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"repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
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"programFiles": [
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"drivers/iio/adc/mp2629_adc.c"
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],
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"versions": [
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{
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"version": "5.8",
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"status": "affected"
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},
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{
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"version": "0",
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"lessThan": "5.8",
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"status": "unaffected",
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"versionType": "semver"
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},
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{
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"version": "5.10.156",
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"lessThanOrEqual": "5.10.*",
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"status": "unaffected",
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},
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{
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"version": "5.15.80",
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"lessThanOrEqual": "5.15.*",
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"status": "unaffected",
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"versionType": "semver"
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},
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{
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"version": "6.0.10",
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"lessThanOrEqual": "6.0.*",
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"status": "unaffected",
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"versionType": "semver"
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},
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{
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"version": "6.1",
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"lessThanOrEqual": "*",
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"status": "unaffected",
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"versionType": "original_commit_for_fix"
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}
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]
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}
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"versionStartIncluding": "5.8",
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"versionEndExcluding": "5.10.156"
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"references": [
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{
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"url": "https://git.kernel.org/stable/c/d95b85c5084ad70011988861ee864529eefa1da0"
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},
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{
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"url": "https://git.kernel.org/stable/c/1678d4abb2dc2ca3b05b998a9d88616976e4f947"
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},
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{
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"url": "https://git.kernel.org/stable/c/399b2105a2240e730b9f3880bd8f154247539aa7"
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},
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{
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"url": "https://git.kernel.org/stable/c/ca1547ab15f48dc81624183ae17a2fd1bad06dfc"
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}
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],
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"title": "iio: adc: mp2629: fix potential array out of bound access",
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