{"dataType":"CVE_RECORD","dataVersion":"5.2","cveMetadata":{"cveId":"CVE-2026-45946","assignerOrgId":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","state":"PUBLISHED","assignerShortName":"Linux","dateReserved":"2026-05-13T15:03:33.088Z","datePublished":"2026-05-27T12:18:02.708Z","dateUpdated":"2026-05-27T12:18:02.708Z"},"containers":{"cna":{"providerMetadata":{"orgId":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","shortName":"Linux","dateUpdated":"2026-05-27T12:18:02.708Z"},"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."}],"affected":[{"product":"Linux","vendor":"Linux","defaultStatus":"unaffected","repo":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git","programFiles":["drivers/power/supply/ab8500_charger.c"],"versions":[{"version":"1c1f13a006ed0d71bb5664c8b7e3e77a28da3beb","lessThan":"43cbb78ee047b9b12d096d40e3be265969d4c1f8","status":"affected","versionType":"git"},{"version":"1c1f13a006ed0d71bb5664c8b7e3e77a28da3beb","lessThan":"551672981fe227122258a25a385a05f5c0746ad6","status":"affected","versionType":"git"},{"version":"1c1f13a006ed0d71bb5664c8b7e3e77a28da3beb","lessThan":"f50433f2603def08b21a4bf2fd238687fb5cbde9","status":"affected","versionType":"git"},{"version":"1c1f13a006ed0d71bb5664c8b7e3e77a28da3beb","lessThan":"847eeb6c0efcd76c7def73857cf798a4fcd8f79b","status":"affected","versionType":"git"},{"version":"1c1f13a006ed0d71bb5664c8b7e3e77a28da3beb","lessThan":"709db4b476e254579d9c48ec34d397a41ca0c407","status":"affected","versionType":"git"},{"version":"1c1f13a006ed0d71bb5664c8b7e3e77a28da3beb","lessThan":"46dbda27b028d78087667e8280966b99cec015ca","status":"affected","versionType":"git"},{"version":"1c1f13a006ed0d71bb5664c8b7e3e77a28da3beb","lessThan":"c4af8a98bb52825a5331ae1d0604c0ea6956ba4b","status":"affected","versionType":"git"},{"version":"341db343768bc44f3512facc464021730d64071c","status":"affected","versionType":"git"},{"version":"5.13.4","lessThan":"5.14","status":"affected","versionType":"semver"}]},{"product":"Linux","vendor":"Linux","defaultStatus":"affected","repo":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git","programFiles":["drivers/power/supply/ab8500_charger.c"],"versions":[{"version":"5.14","status":"affected"},{"version":"0","lessThan":"5.14","status":"unaffected","versionType":"semver"},{"version":"5.15.202","lessThanOrEqual":"5.15.*","status":"unaffected","versionType":"semver"},{"version":"6.1.165","lessThanOrEqual":"6.1.*","status":"unaffected","versionType":"semver"},{"version":"6.6.128","lessThanOrEqual":"6.6.*","status":"unaffected","versionType":"semver"},{"version":"6.12.75","lessThanOrEqual":"6.12.*","status":"unaffected","versionType":"semver"},{"version":"6.18.14","lessThanOrEqual":"6.18.*","status":"unaffected","versionType":"semver"},{"version":"6.19.4","lessThanOrEqual":"6.19.*","status":"unaffected","versionType":"semver"},{"version":"7.0","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":"5.14","versionEndExcluding":"5.15.202"},{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"5.14","versionEndExcluding":"6.1.165"},{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"5.14","versionEndExcluding":"6.6.128"},{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"5.14","versionEndExcluding":"6.12.75"},{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"5.14","versionEndExcluding":"6.18.14"},{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"5.14","versionEndExcluding":"6.19.4"},{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"5.14","versionEndExcluding":"7.0"},{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"5.13.4"}]}]}],"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"}}}}