{"affected": [{"affectedData": [{"defaultStatus": "unaffected", "product": "Linux", "programFiles": ["drivers/power/supply/rt9455_charger.c"], "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git", "vendor": "Linux", "versions": [{"lessThan": "d4e2e3c3caa26b93aa9f36d0a6824b584e2a8dfc", "status": "affected", "version": "e86d69dd786e94046b8f5be7df1b9a8226a40b2a", "versionType": "git"}, {"lessThan": "62d753b916bd500bb269b7078cdab73198ab4718", "status": "affected", "version": "e86d69dd786e94046b8f5be7df1b9a8226a40b2a", "versionType": "git"}, {"lessThan": "a39f8f06216f73ef40e71e2fe4ad071964c1fd36", "status": "affected", "version": "e86d69dd786e94046b8f5be7df1b9a8226a40b2a", "versionType": "git"}, {"lessThan": "af261f218a7606f93d2c786353d60bb4feb56ef0", "status": "affected", "version": "e86d69dd786e94046b8f5be7df1b9a8226a40b2a", "versionType": "git"}, {"lessThan": "2178dc65d45e2f7bcaa8af8d80d100419bdab251", "status": "affected", "version": "e86d69dd786e94046b8f5be7df1b9a8226a40b2a", "versionType": "git"}, {"lessThan": "64e15155095f39f4dec9b4659da1238ef8fc54d4", "status": "affected", "version": "e86d69dd786e94046b8f5be7df1b9a8226a40b2a", "versionType": "git"}, {"lessThan": "721449a15170fc5f028a7576d7f65b9f60d53482", "status": "affected", "version": "e86d69dd786e94046b8f5be7df1b9a8226a40b2a", "versionType": "git"}, {"lessThan": "e2febe375e5ea5afed92f4cd9711bde8f24ee6d2", "status": "affected", "version": "e86d69dd786e94046b8f5be7df1b9a8226a40b2a", "versionType": "git"}]}, {"defaultStatus": "affected", "product": "Linux", "programFiles": ["drivers/power/supply/rt9455_charger.c"], "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git", "vendor": "Linux", "versions": [{"status": "affected", "version": "4.2"}, {"lessThan": "4.2", "status": "unaffected", "version": "0", "versionType": "semver"}, {"lessThanOrEqual": "5.10.*", "status": "unaffected", "version": "5.10.252", "versionType": "semver"}, {"lessThanOrEqual": "5.15.*", "status": "unaffected", "version": "5.15.202", "versionType": "semver"}, {"lessThanOrEqual": "6.1.*", "status": "unaffected", "version": "6.1.165", "versionType": "semver"}, {"lessThanOrEqual": "6.6.*", "status": "unaffected", "version": "6.6.128", "versionType": "semver"}, {"lessThanOrEqual": "6.12.*", "status": "unaffected", "version": "6.12.75", "versionType": "semver"}, {"lessThanOrEqual": "6.18.*", "status": "unaffected", "version": "6.18.14", "versionType": "semver"}, {"lessThanOrEqual": "6.19.*", "status": "unaffected", "version": "6.19.4", "versionType": "semver"}, {"lessThanOrEqual": "*", "status": "unaffected", "version": "7.0", "versionType": "original_commit_for_fix"}]}], "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67"}], "configurations": [{"nodes": [{"cpeMatch": [{"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "matchCriteriaId": "C8804750-9CF7-4B7E-9AF2-6417C12ED933", "versionEndExcluding": "5.10.252", "versionStartIncluding": "4.2", "vulnerable": true}, {"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "matchCriteriaId": "4002FC2B-1456-4666-B240-0EBF590C4671", "versionEndExcluding": "5.15.202", "versionStartIncluding": "5.11", "vulnerable": true}, {"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "matchCriteriaId": "797C7F46-D0BE-4FB8-A502-C5EF8E6B6654", "versionEndExcluding": "6.1.165", "versionStartIncluding": "5.16", "vulnerable": true}, {"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "matchCriteriaId": "851E9353-6C09-4CC9-877E-E09DB164A3C2", "versionEndExcluding": "6.6.128", "versionStartIncluding": "6.2", "vulnerable": true}, {"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "matchCriteriaId": "BCE16369-98ED-41CF-8995-DFDC10B288D2", "versionEndExcluding": "6.12.75", "versionStartIncluding": "6.7", "vulnerable": true}, {"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "matchCriteriaId": "BF463CB7-1F58-4607-B847-77ED23E4B9B7", "versionEndExcluding": "6.18.14", "versionStartIncluding": "6.13", "vulnerable": true}, {"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "matchCriteriaId": "672A3E79-EC03-479D-8503-361DFBDC8092", "versionEndExcluding": "6.19.4", "versionStartIncluding": "6.19", "vulnerable": true}], "negate": false, "operator": "OR"}]}], "cveTags": [], "descriptions": [{"lang": "en", "value": "In the Linux kernel, the following vulnerability has been resolved:\n\npower: supply: rt9455: Fix use-after-free in power_supply_changed()\n\nUsing the `devm_` variant for requesting IRQ _before_ the `devm_`\nvariant for allocating/registering the `power_supply` handle, means that\nthe `power_supply` handle will be deallocated/unregistered _before_ the\ninterrupt handler (since `devm_` naturally deallocates in reverse\nallocation order). This means that during removal, there is a race\ncondition where an interrupt can fire just _after_ the `power_supply`\nhandle has been freed, *but* just _before_ the corresponding\nunregistration of the IRQ handler has run.\n\nThis will lead to the IRQ handler calling `power_supply_changed()` with\na freed `power_supply` handle. Which usually crashes the system or\notherwise silently corrupts the memory...\n\nNote that there is a similar situation which can also happen during\n`probe()`; the possibility of an interrupt firing _before_ registering\nthe `power_supply` handle. This would then lead to the nasty situation\nof using the `power_supply` handle *uninitialized* in\n`power_supply_changed()`.\n\nFix this racy use-after-free by making sure the IRQ is requested _after_\nthe registration of the `power_supply` handle."}, {"lang": "es", "value": "En el kernel de Linux, la siguiente vulnerabilidad ha sido resuelta:\n\npower: supply: rt9455: Correcci\u00f3n de uso despu\u00e9s de liberaci\u00f3n en power_supply_changed()\n\nUsar la variante 'devm_' para solicitar IRQ _antes_ de la variante 'devm_' para asignar/registrar el manejador 'power_supply', significa que el manejador 'power_supply' ser\u00e1 desasignado/dado de baja _antes_ del gestor de interrupciones (ya que 'devm_' desasigna naturalmente en orden inverso de asignaci\u00f3n). Esto significa que durante la eliminaci\u00f3n, existe una condici\u00f3n de carrera donde una interrupci\u00f3n puede dispararse justo _despu\u00e9s_ de que el manejador 'power_supply' haya sido liberado, pero justo _antes_ de que se haya ejecutado la baja correspondiente del gestor de IRQ.\n\nEsto llevar\u00e1 a que el gestor de IRQ llame a 'power_supply_changed()' con un manejador 'power_supply' liberado. Lo que usualmente bloquea el sistema o de otra manera corrompe silenciosamente la memoria...\n\nTenga en cuenta que existe una situaci\u00f3n similar que tambi\u00e9n puede ocurrir durante 'probe()'; la posibilidad de que una interrupci\u00f3n se dispare _antes_ de registrar el manejador 'power_supply'. Esto entonces llevar\u00eda a la desagradable situaci\u00f3n de usar el manejador 'power_supply' sin inicializar en 'power_supply_changed()'.\n\nCorrija este uso despu\u00e9s de liberaci\u00f3n con condici\u00f3n de carrera asegur\u00e1ndose de que la IRQ sea solicitada _despu\u00e9s_ del registro del manejador 'power_supply'."}], "id": "CVE-2026-46270", "lastModified": "2026-07-22T20:10:00.127", "metrics": {"cvssMetricV31": [{"cvssData": {"attackComplexity": "LOW", "attackVector": "LOCAL", "availabilityImpact": "HIGH", "baseScore": 8.4, "baseSeverity": "HIGH", "confidentialityImpact": "HIGH", "integrityImpact": "HIGH", "privilegesRequired": "NONE", "scope": "UNCHANGED", "userInteraction": "NONE", "vectorString": "CVSS:3.1/AV:L/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H", "version": "3.1"}, "exploitabilityScore": 2.5, "impactScore": 5.9, "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "type": "Secondary"}]}, "published": "2026-06-03T18:16:28.733", "references": [{"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "tags": ["Patch"], "url": "https://git.kernel.org/stable/c/2178dc65d45e2f7bcaa8af8d80d100419bdab251"}, {"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "tags": ["Patch"], "url": "https://git.kernel.org/stable/c/62d753b916bd500bb269b7078cdab73198ab4718"}, {"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "tags": ["Patch"], "url": "https://git.kernel.org/stable/c/64e15155095f39f4dec9b4659da1238ef8fc54d4"}, {"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "tags": ["Patch"], "url": "https://git.kernel.org/stable/c/721449a15170fc5f028a7576d7f65b9f60d53482"}, {"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "tags": ["Patch"], "url": "https://git.kernel.org/stable/c/a39f8f06216f73ef40e71e2fe4ad071964c1fd36"}, {"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "tags": ["Patch"], "url": "https://git.kernel.org/stable/c/af261f218a7606f93d2c786353d60bb4feb56ef0"}, {"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "tags": ["Patch"], "url": "https://git.kernel.org/stable/c/d4e2e3c3caa26b93aa9f36d0a6824b584e2a8dfc"}, {"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "tags": ["Patch"], "url": "https://git.kernel.org/stable/c/e2febe375e5ea5afed92f4cd9711bde8f24ee6d2"}], "sourceIdentifier": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "vulnStatus": "Analyzed", "weaknesses": [{"description": [{"lang": "en", "value": "CWE-416"}], "source": "nvd@nist.gov", "type": "Primary"}]}