{"api_version":"1","generated_at":"2026-05-28T04:23:44+00:00","cve":"CVE-2026-45946","urls":{"html":"https://cve.report/CVE-2026-45946","api":"https://cve.report/api/cve/CVE-2026-45946.json","docs":"https://cve.report/api","cve_org":"https://www.cve.org/CVERecord?id=CVE-2026-45946","nvd":"https://nvd.nist.gov/vuln/detail/CVE-2026-45946"},"summary":{"title":"power: supply: ab8500: Fix use-after-free in power_supply_changed()","description":"In the Linux kernel, the following vulnerability has been resolved:\n\npower: supply: ab8500: 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\nCommit 1c1f13a006ed (\"power: supply: ab8500: Move to componentized\nbinding\") introduced this issue during a refactorization. Fix this racy\nuse-after-free by making sure the IRQ is requested _after_ the\nregistration of the `power_supply` handle.","state":"PUBLISHED","assigner":"Linux","published_at":"2026-05-27 14:17:10","updated_at":"2026-05-27 14:48:03"},"problem_types":[],"metrics":[],"references":[{"url":"https://git.kernel.org/stable/c/c4af8a98bb52825a5331ae1d0604c0ea6956ba4b","name":"https://git.kernel.org/stable/c/c4af8a98bb52825a5331ae1d0604c0ea6956ba4b","refsource":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","tags":[],"title":"","mime":"","httpstatus":"","archivestatus":"0"},{"url":"https://git.kernel.org/stable/c/f50433f2603def08b21a4bf2fd238687fb5cbde9","name":"https://git.kernel.org/stable/c/f50433f2603def08b21a4bf2fd238687fb5cbde9","refsource":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","tags":[],"title":"","mime":"","httpstatus":"","archivestatus":"0"},{"url":"https://git.kernel.org/stable/c/46dbda27b028d78087667e8280966b99cec015ca","name":"https://git.kernel.org/stable/c/46dbda27b028d78087667e8280966b99cec015ca","refsource":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","tags":[],"title":"","mime":"","httpstatus":"","archivestatus":"0"},{"url":"https://git.kernel.org/stable/c/847eeb6c0efcd76c7def73857cf798a4fcd8f79b","name":"https://git.kernel.org/stable/c/847eeb6c0efcd76c7def73857cf798a4fcd8f79b","refsource":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","tags":[],"title":"","mime":"","httpstatus":"","archivestatus":"0"},{"url":"https://git.kernel.org/stable/c/43cbb78ee047b9b12d096d40e3be265969d4c1f8","name":"https://git.kernel.org/stable/c/43cbb78ee047b9b12d096d40e3be265969d4c1f8","refsource":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","tags":[],"title":"","mime":"","httpstatus":"","archivestatus":"0"},{"url":"https://git.kernel.org/stable/c/709db4b476e254579d9c48ec34d397a41ca0c407","name":"https://git.kernel.org/stable/c/709db4b476e254579d9c48ec34d397a41ca0c407","refsource":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","tags":[],"title":"","mime":"","httpstatus":"","archivestatus":"0"},{"url":"https://git.kernel.org/stable/c/551672981fe227122258a25a385a05f5c0746ad6","name":"https://git.kernel.org/stable/c/551672981fe227122258a25a385a05f5c0746ad6","refsource":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","tags":[],"title":"","mime":"","httpstatus":"","archivestatus":"0"},{"url":"https://www.cve.org/CVERecord?id=CVE-2026-45946","name":"CVE Program record","refsource":"CVE.ORG","tags":["canonical"]},{"url":"https://nvd.nist.gov/vuln/detail/CVE-2026-45946","name":"NVD vulnerability detail","refsource":"NVD","tags":["canonical","analysis"]}],"affected":[{"source":"CNA","vendor":"Linux","product":"Linux","version":"affected 1c1f13a006ed0d71bb5664c8b7e3e77a28da3beb 43cbb78ee047b9b12d096d40e3be265969d4c1f8 git","platforms":[]},{"source":"CNA","vendor":"Linux","product":"Linux","version":"affected 1c1f13a006ed0d71bb5664c8b7e3e77a28da3beb 551672981fe227122258a25a385a05f5c0746ad6 git","platforms":[]},{"source":"CNA","vendor":"Linux","product":"Linux","version":"affected 1c1f13a006ed0d71bb5664c8b7e3e77a28da3beb f50433f2603def08b21a4bf2fd238687fb5cbde9 git","platforms":[]},{"source":"CNA","vendor":"Linux","product":"Linux","version":"affected 1c1f13a006ed0d71bb5664c8b7e3e77a28da3beb 847eeb6c0efcd76c7def73857cf798a4fcd8f79b git","platforms":[]},{"source":"CNA","vendor":"Linux","product":"Linux","version":"affected 1c1f13a006ed0d71bb5664c8b7e3e77a28da3beb 709db4b476e254579d9c48ec34d397a41ca0c407 git","platforms":[]},{"source":"CNA","vendor":"Linux","product":"Linux","version":"affected 1c1f13a006ed0d71bb5664c8b7e3e77a28da3beb 46dbda27b028d78087667e8280966b99cec015ca git","platforms":[]},{"source":"CNA","vendor":"Linux","product":"Linux","version":"affected 1c1f13a006ed0d71bb5664c8b7e3e77a28da3beb c4af8a98bb52825a5331ae1d0604c0ea6956ba4b git","platforms":[]},{"source":"CNA","vendor":"Linux","product":"Linux","version":"affected 341db343768bc44f3512facc464021730d64071c git","platforms":[]},{"source":"CNA","vendor":"Linux","product":"Linux","version":"affected 5.13.4 5.14 semver","platforms":[]},{"source":"CNA","vendor":"Linux","product":"Linux","version":"affected 5.14","platforms":[]},{"source":"CNA","vendor":"Linux","product":"Linux","version":"unaffected 5.14 semver","platforms":[]},{"source":"CNA","vendor":"Linux","product":"Linux","version":"unaffected 5.15.202 5.15.* semver","platforms":[]},{"source":"CNA","vendor":"Linux","product":"Linux","version":"unaffected 6.1.165 6.1.* semver","platforms":[]},{"source":"CNA","vendor":"Linux","product":"Linux","version":"unaffected 6.6.128 6.6.* semver","platforms":[]},{"source":"CNA","vendor":"Linux","product":"Linux","version":"unaffected 6.12.75 6.12.* semver","platforms":[]},{"source":"CNA","vendor":"Linux","product":"Linux","version":"unaffected 6.18.14 6.18.* semver","platforms":[]},{"source":"CNA","vendor":"Linux","product":"Linux","version":"unaffected 6.19.4 6.19.* semver","platforms":[]},{"source":"CNA","vendor":"Linux","product":"Linux","version":"unaffected 7.0 * original_commit_for_fix","platforms":[]}],"timeline":[],"solutions":[],"workarounds":[],"exploits":[],"credits":[],"nvd_cpes":[],"vendor_comments":[],"enrichments":{"kev":null,"epss":null,"legacy_qids":[]},"source_records":{"cve_program":{"containers":{"cna":{"affected":[{"defaultStatus":"unaffected","product":"Linux","programFiles":["drivers/power/supply/ab8500_charger.c"],"repo":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git","vendor":"Linux","versions":[{"lessThan":"43cbb78ee047b9b12d096d40e3be265969d4c1f8","status":"affected","version":"1c1f13a006ed0d71bb5664c8b7e3e77a28da3beb","versionType":"git"},{"lessThan":"551672981fe227122258a25a385a05f5c0746ad6","status":"affected","version":"1c1f13a006ed0d71bb5664c8b7e3e77a28da3beb","versionType":"git"},{"lessThan":"f50433f2603def08b21a4bf2fd238687fb5cbde9","status":"affected","version":"1c1f13a006ed0d71bb5664c8b7e3e77a28da3beb","versionType":"git"},{"lessThan":"847eeb6c0efcd76c7def73857cf798a4fcd8f79b","status":"affected","version":"1c1f13a006ed0d71bb5664c8b7e3e77a28da3beb","versionType":"git"},{"lessThan":"709db4b476e254579d9c48ec34d397a41ca0c407","status":"affected","version":"1c1f13a006ed0d71bb5664c8b7e3e77a28da3beb","versionType":"git"},{"lessThan":"46dbda27b028d78087667e8280966b99cec015ca","status":"affected","version":"1c1f13a006ed0d71bb5664c8b7e3e77a28da3beb","versionType":"git"},{"lessThan":"c4af8a98bb52825a5331ae1d0604c0ea6956ba4b","status":"affected","version":"1c1f13a006ed0d71bb5664c8b7e3e77a28da3beb","versionType":"git"},{"status":"affected","version":"341db343768bc44f3512facc464021730d64071c","versionType":"git"},{"lessThan":"5.14","status":"affected","version":"5.13.4","versionType":"semver"}]},{"defaultStatus":"affected","product":"Linux","programFiles":["drivers/power/supply/ab8500_charger.c"],"repo":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git","vendor":"Linux","versions":[{"status":"affected","version":"5.14"},{"lessThan":"5.14","status":"unaffected","version":"0","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"}]}],"cpeApplicability":[{"nodes":[{"cpeMatch":[{"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionEndExcluding":"5.15.202","versionStartIncluding":"5.14","vulnerable":true},{"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionEndExcluding":"6.1.165","versionStartIncluding":"5.14","vulnerable":true},{"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionEndExcluding":"6.6.128","versionStartIncluding":"5.14","vulnerable":true},{"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionEndExcluding":"6.12.75","versionStartIncluding":"5.14","vulnerable":true},{"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionEndExcluding":"6.18.14","versionStartIncluding":"5.14","vulnerable":true},{"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionEndExcluding":"6.19.4","versionStartIncluding":"5.14","vulnerable":true},{"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionEndExcluding":"7.0","versionStartIncluding":"5.14","vulnerable":true},{"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"5.13.4","vulnerable":true}],"negate":false,"operator":"OR"}]}],"descriptions":[{"lang":"en","value":"In the Linux kernel, the following vulnerability has been resolved:\n\npower: supply: ab8500: 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\nCommit 1c1f13a006ed (\"power: supply: ab8500: Move to componentized\nbinding\") introduced this issue during a refactorization. Fix this racy\nuse-after-free by making sure the IRQ is requested _after_ the\nregistration of the `power_supply` handle."}],"providerMetadata":{"dateUpdated":"2026-05-27T12:18:02.708Z","orgId":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","shortName":"Linux"},"references":[{"url":"https://git.kernel.org/stable/c/43cbb78ee047b9b12d096d40e3be265969d4c1f8"},{"url":"https://git.kernel.org/stable/c/551672981fe227122258a25a385a05f5c0746ad6"},{"url":"https://git.kernel.org/stable/c/f50433f2603def08b21a4bf2fd238687fb5cbde9"},{"url":"https://git.kernel.org/stable/c/847eeb6c0efcd76c7def73857cf798a4fcd8f79b"},{"url":"https://git.kernel.org/stable/c/709db4b476e254579d9c48ec34d397a41ca0c407"},{"url":"https://git.kernel.org/stable/c/46dbda27b028d78087667e8280966b99cec015ca"},{"url":"https://git.kernel.org/stable/c/c4af8a98bb52825a5331ae1d0604c0ea6956ba4b"}],"title":"power: supply: ab8500: Fix use-after-free in power_supply_changed()","x_generator":{"engine":"bippy-1.2.0"}}},"cveMetadata":{"assignerOrgId":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","assignerShortName":"Linux","cveId":"CVE-2026-45946","datePublished":"2026-05-27T12:18:02.708Z","dateReserved":"2026-05-13T15:03:33.088Z","dateUpdated":"2026-05-27T12:18:02.708Z","state":"PUBLISHED"},"dataType":"CVE_RECORD","dataVersion":"5.2"},"nvd":{"publishedDate":"2026-05-27 14:17:10","lastModifiedDate":"2026-05-27 14:48:03","problem_types":[],"metrics":[],"configurations":[]},"legacy_mitre":{"record":{"CveYear":"2026","CveId":"45946","Ordinal":"1","Title":"power: supply: ab8500: Fix use-after-free in power_supply_change","CVE":"CVE-2026-45946","Year":"2026"},"notes":[{"CveYear":"2026","CveId":"45946","Ordinal":"1","NoteData":"In the Linux kernel, the following vulnerability has been resolved:\n\npower: supply: ab8500: 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\nCommit 1c1f13a006ed (\"power: supply: ab8500: Move to componentized\nbinding\") introduced this issue during a refactorization. Fix this racy\nuse-after-free by making sure the IRQ is requested _after_ the\nregistration of the `power_supply` handle.","Type":"Description","Title":"power: supply: ab8500: Fix use-after-free in power_supply_change"}]}}}