{"id":"CVE-2026-89473","state":"PUBLISHED","title":"power: supply: bq25890: Fix power_supply reference leak","description":"In the Linux kernel, the following vulnerability has been resolved:\n\npower: supply: bq25890: Fix power_supply reference leak\n\nbq25890_fw_probe() acquires a reference to a secondary charger using\npower_supply_get_by_name(), but the reference is not released on later\nprobe failures or on driver detach.\n\nIn particular, failures after bq25890_fw_probe() returns successfully,\nsuch as a failure in bq25890_hw_init(), also leak the reference.\n\nRegister a device-managed cleanup action immediately after acquiring\nthe secondary charger. This releases the reference on all subsequent\nprobe failures and on driver detach.\n\nFound by code review.","publishedAt":"2026-09-11T19:43:31.214Z","updatedAt":"2026-10-19T08:47:22.219Z","severity":null,"assigner":"Linux","products":["Linux Linux"],"affected":[{"vendor":"Linux","product":"Linux","defaultStatus":"unaffected","versions":[{"version":"d54bf877fd878ee45cbc88d399fb98b0b1c4484d","status":"affected","lessThan":"976c10d883a02968f3f58be0cee499d1fd2ba68a","versionType":"git"},{"version":"d54bf877fd878ee45cbc88d399fb98b0b1c4484d","status":"affected","lessThan":"81b558afda9321c1a70971a39071d156f3e26950","versionType":"git"},{"version":"d54bf877fd878ee45cbc88d399fb98b0b1c4484d","status":"affected","lessThan":"238320ad029a3eedabb86286a28cab55bca629b9","versionType":"git"},{"version":"d54bf877fd878ee45cbc88d399fb98b0b1c4484d","status":"affected","lessThan":"58f1025eca92734eadc063715b98f62538286468","versionType":"git"},{"version":"d54bf877fd878ee45cbc88d399fb98b0b1c4484d","status":"affected","lessThan":"863c32a83e4235eb0cbf6106f2b124e645302156","versionType":"git"}],"repo":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git","programFiles":["drivers/power/supply/bq25890_charger.c"]},{"vendor":"Linux","product":"Linux","defaultStatus":"affected","versions":[{"version":"6.3","status":"affected"},{"version":"0","status":"unaffected","lessThan":"6.3","versionType":"semver"},{"version":"6.6.157","status":"unaffected","lessThanOrEqual":"6.6.*","versionType":"semver"},{"version":"6.12.109","status":"unaffected","lessThanOrEqual":"6.12.*","versionType":"semver"},{"version":"6.18.50","status":"unaffected","lessThanOrEqual":"6.18.*","versionType":"semver"},{"version":"7.2.4","status":"unaffected","lessThanOrEqual":"7.2.*","versionType":"semver"},{"version":"7.3","status":"unaffected","lessThanOrEqual":"*","versionType":"original_commit_for_fix"}],"repo":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git","programFiles":["drivers/power/supply/bq25890_charger.c"]}],"references":["https://git.kernel.org/stable/c/976c10d883a02968f3f58be0cee499d1fd2ba68a","https://git.kernel.org/stable/c/81b558afda9321c1a70971a39071d156f3e26950","https://git.kernel.org/stable/c/238320ad029a3eedabb86286a28cab55bca629b9","https://git.kernel.org/stable/c/58f1025eca92734eadc063715b98f62538286468","https://git.kernel.org/stable/c/863c32a83e4235eb0cbf6106f2b124e645302156"],"weaknesses":[],"ingestedAt":"2026-10-29T20:13:26.108Z","source":{"repository":"CVEProject/cvelistV5","path":"cves/2026/89xxx/CVE-2026-89473.json","commit":"556c9d3a8cd17e218bb8e452ba7cd619a384ff47"},"raw":{"dataType":"CVE_RECORD","dataVersion":"5.2","cveMetadata":{"cveId":"CVE-2026-89473","state":"PUBLISHED","datePublished":"2026-09-11T19:43:31.214Z","dateUpdated":"2026-10-19T08:47:22.219Z","assignerShortName":"Linux","assignerOrgId":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","dateReserved":"2026-09-11T19:38:34.710Z"},"containers":{"cna":{"title":"power: supply: bq25890: Fix power_supply reference leak","descriptions":[{"lang":"en","value":"In the Linux kernel, the following vulnerability has been resolved:\n\npower: supply: bq25890: Fix power_supply reference leak\n\nbq25890_fw_probe() acquires a reference to a secondary charger using\npower_supply_get_by_name(), but the reference is not released on later\nprobe failures or on driver detach.\n\nIn particular, failures after bq25890_fw_probe() returns successfully,\nsuch as a failure in bq25890_hw_init(), also leak the reference.\n\nRegister a device-managed cleanup action immediately after acquiring\nthe secondary charger. This releases the reference on all subsequent\nprobe failures and on driver detach.\n\nFound by code review."}],"affected":[{"vendor":"Linux","product":"Linux","defaultStatus":"unaffected","versions":[{"version":"d54bf877fd878ee45cbc88d399fb98b0b1c4484d","status":"affected","lessThan":"976c10d883a02968f3f58be0cee499d1fd2ba68a","versionType":"git"},{"version":"d54bf877fd878ee45cbc88d399fb98b0b1c4484d","status":"affected","lessThan":"81b558afda9321c1a70971a39071d156f3e26950","versionType":"git"},{"version":"d54bf877fd878ee45cbc88d399fb98b0b1c4484d","status":"affected","lessThan":"238320ad029a3eedabb86286a28cab55bca629b9","versionType":"git"},{"version":"d54bf877fd878ee45cbc88d399fb98b0b1c4484d","status":"affected","lessThan":"58f1025eca92734eadc063715b98f62538286468","versionType":"git"},{"version":"d54bf877fd878ee45cbc88d399fb98b0b1c4484d","status":"affected","lessThan":"863c32a83e4235eb0cbf6106f2b124e645302156","versionType":"git"}],"repo":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git","programFiles":["drivers/power/supply/bq25890_charger.c"]},{"vendor":"Linux","product":"Linux","defaultStatus":"affected","versions":[{"version":"6.3","status":"affected"},{"version":"0","status":"unaffected","lessThan":"6.3","versionType":"semver"},{"version":"6.6.157","status":"unaffected","lessThanOrEqual":"6.6.*","versionType":"semver"},{"version":"6.12.109","status":"unaffected","lessThanOrEqual":"6.12.*","versionType":"semver"},{"version":"6.18.50","status":"unaffected","lessThanOrEqual":"6.18.*","versionType":"semver"},{"version":"7.2.4","status":"unaffected","lessThanOrEqual":"7.2.*","versionType":"semver"},{"version":"7.3","status":"unaffected","lessThanOrEqual":"*","versionType":"original_commit_for_fix"}],"repo":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git","programFiles":["drivers/power/supply/bq25890_charger.c"]}],"references":[{"url":"https://git.kernel.org/stable/c/976c10d883a02968f3f58be0cee499d1fd2ba68a"},{"url":"https://git.kernel.org/stable/c/81b558afda9321c1a70971a39071d156f3e26950"},{"url":"https://git.kernel.org/stable/c/238320ad029a3eedabb86286a28cab55bca629b9"},{"url":"https://git.kernel.org/stable/c/58f1025eca92734eadc063715b98f62538286468"},{"url":"https://git.kernel.org/stable/c/863c32a83e4235eb0cbf6106f2b124e645302156"}],"providerMetadata":{"shortName":"Linux","orgId":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","dateUpdated":"2026-10-19T08:47:22.219Z"},"cpeApplicability":[{"nodes":[{"operator":"OR","negate":false,"cpeMatch":[{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"6.3","versionEndExcluding":"6.6.157"},{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"6.3","versionEndExcluding":"6.12.109"},{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"6.3","versionEndExcluding":"6.18.50"},{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"6.3","versionEndExcluding":"7.2.4"},{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"6.3","versionEndExcluding":"7.3"}]}]}],"x_generator":{"engine":"bippy-1.2.0"}}}}}