{"api_version":"1","generated_at":"2026-07-23T15:43:40+00:00","cve":"CVE-2026-64023","urls":{"html":"https://cve.report/CVE-2026-64023","api":"https://cve.report/api/cve/CVE-2026-64023.json","docs":"https://cve.report/api","cve_org":"https://www.cve.org/CVERecord?id=CVE-2026-64023","nvd":"https://nvd.nist.gov/vuln/detail/CVE-2026-64023"},"summary":{"title":"gpio: aggregator: fix a potential use-after-free","description":"In the Linux kernel, the following vulnerability has been resolved:\n\ngpio: aggregator: fix a potential use-after-free\n\nOn error we free aggr->lookups->dev_id before removing the entry from\nthe lookup table. If a concurrent thread calls gpiod_find() before we\nremove the entry, it could iterate over the list and call\ngpiod_match_lookup_table() which unconditionally dereferences dev_id\nwhen calling strcmp(). Reverse the order of cleanup.","state":"PUBLISHED","assigner":"Linux","published_at":"2026-07-19 16:17:42","updated_at":"2026-07-20 15:17:03"},"problem_types":[],"metrics":[{"version":"3.1","source":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","type":"Secondary","score":"7.8","severity":"HIGH","vector":"CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H","data":{"version":"3.1","vectorString":"CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H","baseScore":7.8,"baseSeverity":"HIGH","attackVector":"LOCAL","attackComplexity":"LOW","privilegesRequired":"LOW","userInteraction":"NONE","scope":"UNCHANGED","confidentialityImpact":"HIGH","integrityImpact":"HIGH","availabilityImpact":"HIGH"}},{"version":"3.1","source":"CNA","type":"DECLARED","score":"7.8","severity":"HIGH","vector":"CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H","data":{"baseScore":7.8,"baseSeverity":"HIGH","vectorString":"CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H","version":"3.1"}}],"references":[{"url":"https://git.kernel.org/stable/c/7ac4183a41ba048af89eddd82fe8be64619d0871","name":"https://git.kernel.org/stable/c/7ac4183a41ba048af89eddd82fe8be64619d0871","refsource":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","tags":[],"title":"","mime":"","httpstatus":"","archivestatus":"0"},{"url":"https://git.kernel.org/stable/c/30c073cab97afb31901f94de9605177b6b84367e","name":"https://git.kernel.org/stable/c/30c073cab97afb31901f94de9605177b6b84367e","refsource":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","tags":[],"title":"","mime":"","httpstatus":"","archivestatus":"0"},{"url":"https://git.kernel.org/stable/c/ea28b286649b70618e9dd3e895812417a7712a11","name":"https://git.kernel.org/stable/c/ea28b286649b70618e9dd3e895812417a7712a11","refsource":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","tags":[],"title":"","mime":"","httpstatus":"","archivestatus":"0"},{"url":"https://www.cve.org/CVERecord?id=CVE-2026-64023","name":"CVE Program record","refsource":"CVE.ORG","tags":["canonical"]},{"url":"https://nvd.nist.gov/vuln/detail/CVE-2026-64023","name":"NVD vulnerability detail","refsource":"NVD","tags":["canonical","analysis"]}],"affected":[{"source":"CNA","vendor":"Linux","product":"Linux","version":"affected 86f162e73d2d81ef6d819c06a3b6c2fda77a79b8 ea28b286649b70618e9dd3e895812417a7712a11 git","platforms":[]},{"source":"CNA","vendor":"Linux","product":"Linux","version":"affected 86f162e73d2d81ef6d819c06a3b6c2fda77a79b8 7ac4183a41ba048af89eddd82fe8be64619d0871 git","platforms":[]},{"source":"CNA","vendor":"Linux","product":"Linux","version":"affected 86f162e73d2d81ef6d819c06a3b6c2fda77a79b8 30c073cab97afb31901f94de9605177b6b84367e git","platforms":[]},{"source":"CNA","vendor":"Linux","product":"Linux","version":"affected 6.16","platforms":[]},{"source":"CNA","vendor":"Linux","product":"Linux","version":"unaffected 6.16 semver","platforms":[]},{"source":"CNA","vendor":"Linux","product":"Linux","version":"unaffected 6.18.34 6.18.* semver","platforms":[]},{"source":"CNA","vendor":"Linux","product":"Linux","version":"unaffected 7.0.11 7.0.* semver","platforms":[]},{"source":"CNA","vendor":"Linux","product":"Linux","version":"unaffected 7.1 * original_commit_for_fix","platforms":[]}],"timeline":[],"solutions":[],"workarounds":[],"exploits":[],"credits":[],"nvd_cpes":[],"vendor_comments":[],"enrichments":{"kev":null,"epss":{"cve_year":"2026","cve_id":"64023","cve":"CVE-2026-64023","epss":"0.001660000","percentile":"0.061690000","score_date":"2026-07-20","updated_at":"2026-07-21 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the Linux kernel, the following vulnerability has been resolved:\n\ngpio: aggregator: fix a potential use-after-free\n\nOn error we free aggr->lookups->dev_id before removing the entry from\nthe lookup table. If a concurrent thread calls gpiod_find() before we\nremove the entry, it could iterate over the list and call\ngpiod_match_lookup_table() which unconditionally dereferences dev_id\nwhen calling strcmp(). Reverse the order of cleanup."}],"metrics":[{"cvssV3_1":{"baseScore":7.8,"baseSeverity":"HIGH","vectorString":"CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H","version":"3.1"}}],"providerMetadata":{"dateUpdated":"2026-07-20T13:42:27.952Z","orgId":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","shortName":"Linux"},"references":[{"url":"https://git.kernel.org/stable/c/ea28b286649b70618e9dd3e895812417a7712a11"},{"url":"https://git.kernel.org/stable/c/7ac4183a41ba048af89eddd82fe8be64619d0871"},{"url":"https://git.kernel.org/stable/c/30c073cab97afb31901f94de9605177b6b84367e"}],"title":"gpio: aggregator: fix a potential use-after-free","x_generator":{"engine":"bippy-1.2.0"}}},"cveMetadata":{"assignerOrgId":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","assignerShortName":"Linux","cveId":"CVE-2026-64023","datePublished":"2026-07-19T15:39:15.980Z","dateReserved":"2026-07-19T07:54:57.027Z","dateUpdated":"2026-07-20T13:42:27.952Z","state":"PUBLISHED"},"dataType":"CVE_RECORD","dataVersion":"5.2"},"nvd":{"publishedDate":"2026-07-19 16:17:42","lastModifiedDate":"2026-07-20 15:17:03","problem_types":[],"metrics":{"cvssMetricV31":[{"source":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","type":"Secondary","cvssData":{"version":"3.1","vectorString":"CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H","baseScore":7.8,"baseSeverity":"HIGH","attackVector":"LOCAL","attackComplexity":"LOW","privilegesRequired":"LOW","userInteraction":"NONE","scope":"UNCHANGED","confidentialityImpact":"HIGH","integrityImpact":"HIGH","availabilityImpact":"HIGH"},"exploitabilityScore":1.8,"impactScore":5.9}]},"configurations":[]},"legacy_mitre":{"record":{"CveYear":"2026","CveId":"64023","Ordinal":"1","Title":"gpio: aggregator: fix a potential use-after-free","CVE":"CVE-2026-64023","Year":"2026"},"notes":[{"CveYear":"2026","CveId":"64023","Ordinal":"1","NoteData":"In the Linux kernel, the following vulnerability has been resolved:\n\ngpio: aggregator: fix a potential use-after-free\n\nOn error we free aggr->lookups->dev_id before removing the entry from\nthe lookup table. If a concurrent thread calls gpiod_find() before we\nremove the entry, it could iterate over the list and call\ngpiod_match_lookup_table() which unconditionally dereferences dev_id\nwhen calling strcmp(). Reverse the order of cleanup.","Type":"Description","Title":"gpio: aggregator: fix a potential use-after-free"}]}}}