206 lines
10 KiB
JSON
206 lines
10 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-2026-92481",
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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": "2026-09-16T12:21:13.870Z",
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"datePublished": "2026-09-17T16:09:58.378Z",
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"dateUpdated": "2026-10-19T09:03:47.420Z"
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},
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"containers": {
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"cna": {
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"providerMetadata": {
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"orgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
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"shortName": "Linux",
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"dateUpdated": "2026-10-19T09:03:47.420Z"
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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\npinctrl: mediatek: free EINT resources on unbind\n\nmtk_eint_do_init() creates an IRQ domain, populates it with a mapping for\nevery EINT line and installs a chained handler on the parent interrupt,\nbut none of these are ever released. This was harmless while the drivers\nwere built-in, but now that they can be built as modules and\nunbound/rmmod'd it leaves behind a dangling IRQ domain, interrupt mappings\nwhose chip data points at freed memory, and a chained handler that keeps\nfiring into that freed data.\n\nThe plain allocations in mtk_eint_do_init() already use the device-managed\ndevm_*() helpers, so tear the remaining resources down the same way:\nregister a devm action that detaches the chained handler, waits for any\nin-flight handler to finish, disposes of the per-line mappings and removes\nthe IRQ domain. This mirrors the device-managed lifecycle adopted for the\nGPIO chip and keeps the whole EINT setup self-cleaning on unbind."
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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/pinctrl/mediatek/mtk-eint.c"
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],
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"versions": [
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{
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"version": "e46df235b4e605aa4e7609a27c118a1cccd4ff9a",
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"lessThan": "23252bc1cd9a58a039c9b1ae77b22d2b33da48e9",
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"status": "affected",
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"versionType": "git"
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},
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{
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"version": "e46df235b4e605aa4e7609a27c118a1cccd4ff9a",
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"lessThan": "903a7cdf63a81d3738594c5bd1b5955f58fda427",
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"status": "affected",
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"versionType": "git"
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},
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{
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"version": "e46df235b4e605aa4e7609a27c118a1cccd4ff9a",
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"lessThan": "51552c8c60d3b1fecc062eab2d8cfeaa1cb339dd",
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"status": "affected",
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"versionType": "git"
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},
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{
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"version": "e46df235b4e605aa4e7609a27c118a1cccd4ff9a",
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"lessThan": "7f6d898179ca4771ee602bdad4246c3952af83eb",
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"status": "affected",
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"versionType": "git"
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},
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{
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"version": "e46df235b4e605aa4e7609a27c118a1cccd4ff9a",
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"lessThan": "e06785cba7f86d72abd531058b1a82d6952a7346",
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"status": "affected",
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"versionType": "git"
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},
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{
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"version": "e46df235b4e605aa4e7609a27c118a1cccd4ff9a",
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"lessThan": "88292b7103d260e3e606eb3bb2794060a5fde48e",
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"status": "affected",
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"versionType": "git"
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}
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]
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},
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{
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"product": "Linux",
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"vendor": "Linux",
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"defaultStatus": "affected",
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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/pinctrl/mediatek/mtk-eint.c"
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],
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"versions": [
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{
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"version": "4.18",
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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": "4.18",
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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": "6.1.188",
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"lessThanOrEqual": "6.1.*",
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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": "6.6.157",
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"lessThanOrEqual": "6.6.*",
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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": "6.12.110",
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"lessThanOrEqual": "6.12.*",
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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": "6.18.52",
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"lessThanOrEqual": "6.18.*",
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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": "7.2.6",
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"lessThanOrEqual": "7.2.*",
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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": "7.3",
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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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],
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"cpeApplicability": [
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{
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"nodes": [
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{
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"operator": "OR",
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"negate": false,
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"cpeMatch": [
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{
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"vulnerable": true,
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"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
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"versionStartIncluding": "4.18",
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"versionEndExcluding": "6.1.188"
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},
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{
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"vulnerable": true,
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"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
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"versionStartIncluding": "4.18",
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"versionEndExcluding": "6.6.157"
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},
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"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
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"versionStartIncluding": "4.18",
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"versionEndExcluding": "6.12.110"
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"versionStartIncluding": "4.18",
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"versionEndExcluding": "6.18.52"
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"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
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"versionStartIncluding": "4.18",
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"versionEndExcluding": "7.2.6"
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},
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"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
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"versionStartIncluding": "4.18",
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"versionEndExcluding": "7.3"
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}
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]
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}
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]
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}
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],
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"references": [
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{
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"url": "https://git.kernel.org/stable/c/23252bc1cd9a58a039c9b1ae77b22d2b33da48e9"
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},
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{
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"url": "https://git.kernel.org/stable/c/903a7cdf63a81d3738594c5bd1b5955f58fda427"
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},
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{
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"url": "https://git.kernel.org/stable/c/51552c8c60d3b1fecc062eab2d8cfeaa1cb339dd"
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},
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{
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"url": "https://git.kernel.org/stable/c/7f6d898179ca4771ee602bdad4246c3952af83eb"
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},
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{
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"url": "https://git.kernel.org/stable/c/e06785cba7f86d72abd531058b1a82d6952a7346"
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},
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{
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"url": "https://git.kernel.org/stable/c/88292b7103d260e3e606eb3bb2794060a5fde48e"
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}
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],
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"title": "pinctrl: mediatek: free EINT resources on unbind",
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"x_generator": {
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"engine": "bippy-1.2.0"
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}
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}
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}
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} |