{"dataType":"CVE_RECORD","dataVersion":"5.2","cveMetadata":{"cveId":"CVE-2026-45902","assignerOrgId":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","state":"PUBLISHED","assignerShortName":"Linux","dateReserved":"2026-05-13T15:03:33.084Z","datePublished":"2026-05-27T12:17:10.508Z","dateUpdated":"2026-05-27T12:17:10.508Z"},"containers":{"cna":{"providerMetadata":{"orgId":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","shortName":"Linux","dateUpdated":"2026-05-27T12:17:10.508Z"},"descriptions":[{"lang":"en","value":"In the Linux kernel, the following vulnerability has been resolved:\n\npower: supply: bq256xx: 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."}],"affected":[{"product":"Linux","vendor":"Linux","defaultStatus":"unaffected","repo":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git","programFiles":["drivers/power/supply/bq256xx_charger.c"],"versions":[{"version":"32e4978bb920d047fe5de3ea42d176f267c01f63","lessThan":"81d3688c9a2158329391e08f2d0b8ba204216044","status":"affected","versionType":"git"},{"version":"32e4978bb920d047fe5de3ea42d176f267c01f63","lessThan":"74b5a88318db97d51bb40f774736553c2acd1514","status":"affected","versionType":"git"},{"version":"32e4978bb920d047fe5de3ea42d176f267c01f63","lessThan":"cb5c743936edcebc51880eeb6bf04979b5c9438b","status":"affected","versionType":"git"},{"version":"32e4978bb920d047fe5de3ea42d176f267c01f63","lessThan":"83c27fdd696ac13d023ef7a0345301be93209c53","status":"affected","versionType":"git"},{"version":"32e4978bb920d047fe5de3ea42d176f267c01f63","lessThan":"4b6fb0b6124f558131e502e3ffd03e6583b3ace6","status":"affected","versionType":"git"},{"version":"32e4978bb920d047fe5de3ea42d176f267c01f63","lessThan":"8796910131a32ff29275052df768ef022929a394","status":"affected","versionType":"git"},{"version":"32e4978bb920d047fe5de3ea42d176f267c01f63","lessThan":"8005843369723d9c8975b7c4202d1b85d6125302","status":"affected","versionType":"git"}]},{"product":"Linux","vendor":"Linux","defaultStatus":"affected","repo":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git","programFiles":["drivers/power/supply/bq256xx_charger.c"],"versions":[{"version":"5.12","status":"affected"},{"version":"0","lessThan":"5.12","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":"5.12","versionEndExcluding":"5.15.202"},{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"5.12","versionEndExcluding":"6.1.165"},{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"5.12","versionEndExcluding":"6.6.128"},{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"5.12","versionEndExcluding":"6.12.75"},{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"5.12","versionEndExcluding":"6.18.14"},{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"5.12","versionEndExcluding":"6.19.4"},{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"5.12","versionEndExcluding":"7.0"}]}]}],"references":[{"url":"https://git.kernel.org/stable/c/81d3688c9a2158329391e08f2d0b8ba204216044"},{"url":"https://git.kernel.org/stable/c/74b5a88318db97d51bb40f774736553c2acd1514"},{"url":"https://git.kernel.org/stable/c/cb5c743936edcebc51880eeb6bf04979b5c9438b"},{"url":"https://git.kernel.org/stable/c/83c27fdd696ac13d023ef7a0345301be93209c53"},{"url":"https://git.kernel.org/stable/c/4b6fb0b6124f558131e502e3ffd03e6583b3ace6"},{"url":"https://git.kernel.org/stable/c/8796910131a32ff29275052df768ef022929a394"},{"url":"https://git.kernel.org/stable/c/8005843369723d9c8975b7c4202d1b85d6125302"}],"title":"power: supply: bq256xx: Fix use-after-free in power_supply_changed()","x_generator":{"engine":"bippy-1.2.0"}}}}