CVE-2026-92481

{"dataType": "CVE_RECORD", "dataVersion": "5.2", "cveMetadata": {"cveId": "CVE-2026-92481", "assignerOrgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "state": "PUBLISHED", "assignerShortName": "Linux", "dateReserved": "2026-09-16T12:21:13.870Z", "datePublished": "2026-09-17T16:09:58.378Z", "dateUpdated": "2026-10-19T09:03:47.420Z"}, "containers": {"cna": {"providerMetadata": {"orgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "shortName": "Linux", "dateUpdated": "2026-10-19T09:03:47.420Z"}, "descriptions": [{"lang": "en", "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."}], "affected": [{"product": "Linux", "vendor": "Linux", "defaultStatus": "unaffected", "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git", "programFiles": ["drivers/pinctrl/mediatek/mtk-eint.c"], "versions": [{"version": "e46df235b4e605aa4e7609a27c118a1cccd4ff9a", "lessThan": "23252bc1cd9a58a039c9b1ae77b22d2b33da48e9", "status": "affected", "versionType": "git"}, {"version": "e46df235b4e605aa4e7609a27c118a1cccd4ff9a", "lessThan": "903a7cdf63a81d3738594c5bd1b5955f58fda427", "status": "affected", "versionType": "git"}, {"version": "e46df235b4e605aa4e7609a27c118a1cccd4ff9a", "lessThan": "51552c8c60d3b1fecc062eab2d8cfeaa1cb339dd", "status": "affected", "versionType": "git"}, {"version": "e46df235b4e605aa4e7609a27c118a1cccd4ff9a", "lessThan": "7f6d898179ca4771ee602bdad4246c3952af83eb", "status": "affected", "versionType": "git"}, {"version": "e46df235b4e605aa4e7609a27c118a1cccd4ff9a", "lessThan": "e06785cba7f86d72abd531058b1a82d6952a7346", "status": "affected", "versionType": "git"}, {"version": "e46df235b4e605aa4e7609a27c118a1cccd4ff9a", "lessThan": "88292b7103d260e3e606eb3bb2794060a5fde48e", "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/pinctrl/mediatek/mtk-eint.c"], "versions": [{"version": "4.18", "status": "affected"}, {"version": "0", "lessThan": "4.18", "status": "unaffected", "versionType": "semver"}, {"version": "6.1.188", "lessThanOrEqual": "6.1.*", "status": "unaffected", "versionType": "semver"}, {"version": "6.6.157", "lessThanOrEqual": "6.6.*", "status": "unaffected", "versionType": "semver"}, {"version": "6.12.110", "lessThanOrEqual": "6.12.*", "status": "unaffected", "versionType": "semver"}, {"version": "6.18.52", "lessThanOrEqual": "6.18.*", "status": "unaffected", "versionType": "semver"}, {"version": "7.2.6", "lessThanOrEqual": "7.2.*", "status": "unaffected", "versionType": "semver"}, {"version": "7.3", "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": "4.18", "versionEndExcluding": "6.1.188"}, {"vulnerable": true, "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "versionStartIncluding": "4.18", "versionEndExcluding": "6.6.157"}, {"vulnerable": true, "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "versionStartIncluding": "4.18", "versionEndExcluding": "6.12.110"}, {"vulnerable": true, "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "versionStartIncluding": "4.18", "versionEndExcluding": "6.18.52"}, {"vulnerable": true, "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "versionStartIncluding": "4.18", "versionEndExcluding": "7.2.6"}, {"vulnerable": true, "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "versionStartIncluding": "4.18", "versionEndExcluding": "7.3"}]}]}], "references": [{"url": "https://git.kernel.org/stable/c/23252bc1cd9a58a039c9b1ae77b22d2b33da48e9"}, {"url": "https://git.kernel.org/stable/c/903a7cdf63a81d3738594c5bd1b5955f58fda427"}, {"url": "https://git.kernel.org/stable/c/51552c8c60d3b1fecc062eab2d8cfeaa1cb339dd"}, {"url": "https://git.kernel.org/stable/c/7f6d898179ca4771ee602bdad4246c3952af83eb"}, {"url": "https://git.kernel.org/stable/c/e06785cba7f86d72abd531058b1a82d6952a7346"}, {"url": "https://git.kernel.org/stable/c/88292b7103d260e3e606eb3bb2794060a5fde48e"}], "title": "pinctrl: mediatek: free EINT resources on unbind", "x_generator": {"engine": "bippy-1.2.0"}}}}

{}

{"affected": [{"affectedData": [{"defaultStatus": "unaffected", "product": "Linux", "programFiles": ["drivers/pinctrl/mediatek/mtk-eint.c"], "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git", "vendor": "Linux", "versions": [{"lessThan": "23252bc1cd9a58a039c9b1ae77b22d2b33da48e9", "status": "affected", "version": "e46df235b4e605aa4e7609a27c118a1cccd4ff9a", "versionType": "git"}, {"lessThan": "903a7cdf63a81d3738594c5bd1b5955f58fda427", "status": "affected", "version": "e46df235b4e605aa4e7609a27c118a1cccd4ff9a", "versionType": "git"}, {"lessThan": "51552c8c60d3b1fecc062eab2d8cfeaa1cb339dd", "status": "affected", "version": "e46df235b4e605aa4e7609a27c118a1cccd4ff9a", "versionType": "git"}, {"lessThan": "7f6d898179ca4771ee602bdad4246c3952af83eb", "status": "affected", "version": "e46df235b4e605aa4e7609a27c118a1cccd4ff9a", "versionType": "git"}, {"lessThan": "e06785cba7f86d72abd531058b1a82d6952a7346", "status": "affected", "version": "e46df235b4e605aa4e7609a27c118a1cccd4ff9a", "versionType": "git"}, {"lessThan": "88292b7103d260e3e606eb3bb2794060a5fde48e", "status": "affected", "version": "e46df235b4e605aa4e7609a27c118a1cccd4ff9a", "versionType": "git"}]}, {"defaultStatus": "affected", "product": "Linux", "programFiles": ["drivers/pinctrl/mediatek/mtk-eint.c"], "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git", "vendor": "Linux", "versions": [{"status": "affected", "version": "4.18"}, {"lessThan": "4.18", "status": "unaffected", "version": "0", "versionType": "semver"}, {"lessThanOrEqual": "6.1.*", "status": "unaffected", "version": "6.1.188", "versionType": "semver"}, {"lessThanOrEqual": "6.6.*", "status": "unaffected", "version": "6.6.157", "versionType": "semver"}, {"lessThanOrEqual": "6.12.*", "status": "unaffected", "version": "6.12.110", "versionType": "semver"}, {"lessThanOrEqual": "6.18.*", "status": "unaffected", "version": "6.18.52", "versionType": "semver"}, {"lessThanOrEqual": "7.2.*", "status": "unaffected", "version": "7.2.6", "versionType": "semver"}, {"lessThanOrEqual": "*", "status": "unaffected", "version": "7.3", "versionType": "original_commit_for_fix"}]}], "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67"}], "cveTags": [], "descriptions": [{"lang": "en", "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."}], "id": "CVE-2026-92481", "lastModified": "2026-10-19T09:19:38.407", "metrics": {}, "published": "2026-09-17T17:17:50.153", "references": [{"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "url": "https://git.kernel.org/stable/c/23252bc1cd9a58a039c9b1ae77b22d2b33da48e9"}, {"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "url": "https://git.kernel.org/stable/c/51552c8c60d3b1fecc062eab2d8cfeaa1cb339dd"}, {"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "url": "https://git.kernel.org/stable/c/7f6d898179ca4771ee602bdad4246c3952af83eb"}, {"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "url": "https://git.kernel.org/stable/c/88292b7103d260e3e606eb3bb2794060a5fde48e"}, {"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "url": "https://git.kernel.org/stable/c/903a7cdf63a81d3738594c5bd1b5955f58fda427"}, {"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "url": "https://git.kernel.org/stable/c/e06785cba7f86d72abd531058b1a82d6952a7346"}], "sourceIdentifier": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "vulnStatus": "Received"}

{}

{"affected": [{"configurations": [{"platform": null, "status": "affected", "versions": {"scheme": "code_commit", "value": "[e46df235b4e605aa4e7609a27c118a1cccd4ff9a,23252bc1cd9a58a039c9b1ae77b22d2b33da48e9)"}}, {"platform": null, "status": "affected", "versions": {"scheme": "code_commit", "value": "[e46df235b4e605aa4e7609a27c118a1cccd4ff9a,903a7cdf63a81d3738594c5bd1b5955f58fda427)"}}, {"platform": null, "status": "affected", "versions": {"scheme": "code_commit", "value": "[e46df235b4e605aa4e7609a27c118a1cccd4ff9a,51552c8c60d3b1fecc062eab2d8cfeaa1cb339dd)"}}, {"platform": null, "status": "affected", "versions": {"scheme": "code_commit", "value": "[e46df235b4e605aa4e7609a27c118a1cccd4ff9a,7f6d898179ca4771ee602bdad4246c3952af83eb)"}}, {"platform": null, "status": "affected", "versions": {"scheme": "code_commit", "value": "[e46df235b4e605aa4e7609a27c118a1cccd4ff9a,e06785cba7f86d72abd531058b1a82d6952a7346)"}}, {"platform": null, "status": "affected", "versions": {"scheme": "code_commit", "value": "[e46df235b4e605aa4e7609a27c118a1cccd4ff9a,88292b7103d260e3e606eb3bb2794060a5fde48e)"}}], "enrichment": {"confidence": 99.0, "confidence_source": "inferred", "scores": [{"score": 99.0, "source": "inferred"}, {"score": 100.0, "source": "matching"}]}, "original": {"product": "Linux", "source": "cna", "vendor": "Linux"}, "product": "linux_kernel", "vendor": "linux"}, {"configurations": [{"platform": null, "status": "affected", "versions": {"scheme": "generic", "value": "4.18"}}, {"platform": null, "status": "unaffected", "versions": {"scheme": "semver", "value": "[0,4.18)"}}, {"platform": null, "status": "unaffected", "versions": {"scheme": "semver", "value": "[6.1.188,6.2.0]"}}, {"platform": null, "status": "unaffected", "versions": {"scheme": "semver", "value": "[6.6.157,6.7.0]"}}, {"platform": null, "status": "unaffected", "versions": {"scheme": "semver", "value": "[6.12.110,6.13.0]"}}, {"platform": null, "status": "unaffected", "versions": {"scheme": "semver", "value": "[6.18.52,6.19.0]"}}, {"platform": null, "status": "unaffected", "versions": {"scheme": "semver", "value": "[7.2.6,7.3.0]"}}, {"platform": null, "status": "unaffected", "versions": {"scheme": "generic", "value": "[7.3-rc1,*]"}}], "enrichment": {"confidence": 99.0, "confidence_source": "inferred", "scores": [{"score": 99.0, "source": "inferred"}, {"score": 100.0, "source": "matching"}]}, "original": {"product": "Linux", "source": "cna", "vendor": "Linux"}, "product": "linux_kernel", "vendor": "linux"}], "created": "2026-09-19T06:00:09.681735+00:00", "updated": "2026-09-19T09:30:13.146036+00:00", "vendors": ["linux", "linux$PRODUCT$linux_kernel"], "weaknesses": ["CWE-416"]}