CVE-2026-90422

{"dataType": "CVE_RECORD", "dataVersion": "5.2", "cveMetadata": {"cveId": "CVE-2026-90422", "assignerOrgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "state": "PUBLISHED", "assignerShortName": "Linux", "dateReserved": "2026-09-11T19:38:34.814Z", "datePublished": "2026-09-17T16:09:45.830Z", "dateUpdated": "2026-10-21T12:51:35.803Z"}, "containers": {"cna": {"providerMetadata": {"orgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "shortName": "Linux", "dateUpdated": "2026-10-21T12:51:35.803Z"}, "descriptions": [{"lang": "en", "value": "In the Linux kernel, the following vulnerability has been resolved:\n\nclk: mediatek: pllfh: Fix IO remapping leak in register_pllfhs error path\n\nWhen mtk_clk_register_pllfhs function fails to register a PLL, it\nunregisters all PLLs and cleans up itself in its error path before\nreturning, so the function callers don't need to do it.\n\nBut contrary to mtk_clk_unregister_pllfhs function, that does almost\nthe same sequence, it does not free the IO memory mapped on fhctl node,\nleading to a leak.\n\nFix this leak by factorizing the cleanup sequence in a new private\nfunction and use it both mtk_clk_register_pllfhs and\nmtk_clk_unregister_pllfhs functions.\n\nAlso, change the loop index start value to avoid the -1 operation on\nindex at each loop."}], "affected": [{"product": "Linux", "vendor": "Linux", "defaultStatus": "unaffected", "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git", "programFiles": ["drivers/clk/mediatek/clk-pllfh.c"], "versions": [{"version": "d7964de8a8ea800910fdd4e365c42a9e7d5c54aa", "lessThan": "6e3e93bc718c4fea556d7ca5fba07ab3511c9918", "status": "affected", "versionType": "git"}, {"version": "d7964de8a8ea800910fdd4e365c42a9e7d5c54aa", "lessThan": "111235106099019b8a8d1947dc5c2674e0329ffa", "status": "affected", "versionType": "git"}, {"version": "d7964de8a8ea800910fdd4e365c42a9e7d5c54aa", "lessThan": "d35e45e5bad4fabcf122126402b6c6dcb4379672", "status": "affected", "versionType": "git"}, {"version": "d7964de8a8ea800910fdd4e365c42a9e7d5c54aa", "lessThan": "fea0b4fd891a2af77b55e05b950e7ea55b5d234e", "status": "affected", "versionType": "git"}, {"version": "d7964de8a8ea800910fdd4e365c42a9e7d5c54aa", "lessThan": "540d91480bcb1b28a62d7023aa70947ea44c55b9", "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/clk/mediatek/clk-pllfh.c"], "versions": [{"version": "6.2", "status": "affected"}, {"version": "0", "lessThan": "6.2", "status": "unaffected", "versionType": "semver"}, {"version": "6.6.160", "lessThanOrEqual": "6.6.*", "status": "unaffected", "versionType": "semver"}, {"version": "6.12.114", "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": "6.2", "versionEndExcluding": "6.6.160"}, {"vulnerable": true, "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "versionStartIncluding": "6.2", "versionEndExcluding": "6.12.114"}, {"vulnerable": true, "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "versionStartIncluding": "6.2", "versionEndExcluding": "6.18.52"}, {"vulnerable": true, "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "versionStartIncluding": "6.2", "versionEndExcluding": "7.2.6"}, {"vulnerable": true, "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "versionStartIncluding": "6.2", "versionEndExcluding": "7.3"}]}]}], "references": [{"url": "https://git.kernel.org/stable/c/6e3e93bc718c4fea556d7ca5fba07ab3511c9918"}, {"url": "https://git.kernel.org/stable/c/111235106099019b8a8d1947dc5c2674e0329ffa"}, {"url": "https://git.kernel.org/stable/c/d35e45e5bad4fabcf122126402b6c6dcb4379672"}, {"url": "https://git.kernel.org/stable/c/fea0b4fd891a2af77b55e05b950e7ea55b5d234e"}, {"url": "https://git.kernel.org/stable/c/540d91480bcb1b28a62d7023aa70947ea44c55b9"}], "title": "clk: mediatek: pllfh: Fix IO remapping leak in register_pllfhs error path", "x_generator": {"engine": "bippy-1.2.0"}}}}

{}

{"affected": [{"affectedData": [{"defaultStatus": "unaffected", "product": "Linux", "programFiles": ["drivers/clk/mediatek/clk-pllfh.c"], "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git", "vendor": "Linux", "versions": [{"lessThan": "6e3e93bc718c4fea556d7ca5fba07ab3511c9918", "status": "affected", "version": "d7964de8a8ea800910fdd4e365c42a9e7d5c54aa", "versionType": "git"}, {"lessThan": "111235106099019b8a8d1947dc5c2674e0329ffa", "status": "affected", "version": "d7964de8a8ea800910fdd4e365c42a9e7d5c54aa", "versionType": "git"}, {"lessThan": "d35e45e5bad4fabcf122126402b6c6dcb4379672", "status": "affected", "version": "d7964de8a8ea800910fdd4e365c42a9e7d5c54aa", "versionType": "git"}, {"lessThan": "fea0b4fd891a2af77b55e05b950e7ea55b5d234e", "status": "affected", "version": "d7964de8a8ea800910fdd4e365c42a9e7d5c54aa", "versionType": "git"}, {"lessThan": "540d91480bcb1b28a62d7023aa70947ea44c55b9", "status": "affected", "version": "d7964de8a8ea800910fdd4e365c42a9e7d5c54aa", "versionType": "git"}]}, {"defaultStatus": "affected", "product": "Linux", "programFiles": ["drivers/clk/mediatek/clk-pllfh.c"], "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git", "vendor": "Linux", "versions": [{"status": "affected", "version": "6.2"}, {"lessThan": "6.2", "status": "unaffected", "version": "0", "versionType": "semver"}, {"lessThanOrEqual": "6.6.*", "status": "unaffected", "version": "6.6.160", "versionType": "semver"}, {"lessThanOrEqual": "6.12.*", "status": "unaffected", "version": "6.12.114", "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\nclk: mediatek: pllfh: Fix IO remapping leak in register_pllfhs error path\n\nWhen mtk_clk_register_pllfhs function fails to register a PLL, it\nunregisters all PLLs and cleans up itself in its error path before\nreturning, so the function callers don't need to do it.\n\nBut contrary to mtk_clk_unregister_pllfhs function, that does almost\nthe same sequence, it does not free the IO memory mapped on fhctl node,\nleading to a leak.\n\nFix this leak by factorizing the cleanup sequence in a new private\nfunction and use it both mtk_clk_register_pllfhs and\nmtk_clk_unregister_pllfhs functions.\n\nAlso, change the loop index start value to avoid the -1 operation on\nindex at each loop."}], "id": "CVE-2026-90422", "lastModified": "2026-10-21T13:20:55.563", "metrics": {}, "published": "2026-09-17T17:17:46.770", "references": [{"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "url": "https://git.kernel.org/stable/c/111235106099019b8a8d1947dc5c2674e0329ffa"}, {"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "url": "https://git.kernel.org/stable/c/540d91480bcb1b28a62d7023aa70947ea44c55b9"}, {"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "url": "https://git.kernel.org/stable/c/6e3e93bc718c4fea556d7ca5fba07ab3511c9918"}, {"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "url": "https://git.kernel.org/stable/c/d35e45e5bad4fabcf122126402b6c6dcb4379672"}, {"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "url": "https://git.kernel.org/stable/c/fea0b4fd891a2af77b55e05b950e7ea55b5d234e"}], "sourceIdentifier": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "vulnStatus": "Received"}

{}

{"affected": [{"configurations": [{"platform": null, "status": "affected", "versions": {"scheme": "code_commit", "value": "[d7964de8a8ea800910fdd4e365c42a9e7d5c54aa,d35e45e5bad4fabcf122126402b6c6dcb4379672)"}}, {"platform": null, "status": "affected", "versions": {"scheme": "code_commit", "value": "[d7964de8a8ea800910fdd4e365c42a9e7d5c54aa,fea0b4fd891a2af77b55e05b950e7ea55b5d234e)"}}, {"platform": null, "status": "affected", "versions": {"scheme": "code_commit", "value": "[d7964de8a8ea800910fdd4e365c42a9e7d5c54aa,540d91480bcb1b28a62d7023aa70947ea44c55b9)"}}], "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": "6.2"}}, {"platform": null, "status": "unaffected", "versions": {"scheme": "semver", "value": "[0,6.2)"}}, {"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": "2026-09-19T08:45:06.487359+00:00", "updated": "2026-09-19T13:00:12.304731+00:00", "vendors": ["linux", "linux$PRODUCT$linux_kernel"], "weaknesses": ["CWE-401"]}