{"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"}}}}