{"id":"CVE-2026-89475","state":"PUBLISHED","title":"power: supply: bq24257: fix use-after-free on remove","description":"In the Linux kernel, the following vulnerability has been resolved:\n\npower: supply: bq24257: fix use-after-free on remove\n\nThe STAT-pin interrupt is devm-managed, so it stays armed until the devm\ncleanup that runs after remove() returns. remove() cancels\nbq->iilimit_setup_work while the threaded handler can still fire; that\nhandler reschedules the work and dereferences bq, so the work runs\nagainst freed memory once devm frees bq.\n\nMake the delayed work device-managed with devm_delayed_work_autocancel(),\nregistered before the interrupt request. The devm cleanup then releases\nthe interrupt first, so the handler can no longer reschedule the work,\nand cancels the work before bq is freed. The explicit\ncancel_delayed_work_sync() in remove() is no longer needed and is dropped.\n\nFound by static analysis.","publishedAt":"2026-09-11T19:43:32.537Z","updatedAt":"2026-10-30T12:31:51.693Z","severity":null,"assigner":"Linux","products":["Linux Linux"],"affected":[{"vendor":"Linux","product":"Linux","defaultStatus":"unaffected","versions":[{"version":"2219a935963e5eeb19e5abfb99475fcc06bbb804","status":"affected","lessThan":"9aace29bbcfa64450c53773ed2f20e95987b3690","versionType":"git"},{"version":"2219a935963e5eeb19e5abfb99475fcc06bbb804","status":"affected","lessThan":"9d77fd7dd9a3ad57f7655c5264b503b85adbb7b8","versionType":"git"},{"version":"2219a935963e5eeb19e5abfb99475fcc06bbb804","status":"affected","lessThan":"a279e64c907f5638bb34cb8e2c9285798cf5f690","versionType":"git"},{"version":"2219a935963e5eeb19e5abfb99475fcc06bbb804","status":"affected","lessThan":"6d2eb93975c07b0169a3287efc1ae3b60cf52d8e","versionType":"git"},{"version":"2219a935963e5eeb19e5abfb99475fcc06bbb804","status":"affected","lessThan":"861ec73ce86e2ca18082cc7be4f140a5bbdf1428","versionType":"git"},{"version":"2219a935963e5eeb19e5abfb99475fcc06bbb804","status":"affected","lessThan":"f495808cdd6d9576965787cf6d9737d0b0e86b73","versionType":"git"},{"version":"2219a935963e5eeb19e5abfb99475fcc06bbb804","status":"affected","lessThan":"47ccbad210f48721c30d69d65b83dc9fff919ca9","versionType":"git"},{"version":"2219a935963e5eeb19e5abfb99475fcc06bbb804","status":"affected","lessThan":"9d34c9d660c3d0931d2cc749c46c47cf31f96e48","versionType":"git"}],"repo":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git","programFiles":["drivers/power/supply/bq24257_charger.c"]},{"vendor":"Linux","product":"Linux","defaultStatus":"affected","versions":[{"version":"4.2","status":"affected"},{"version":"0","status":"unaffected","lessThan":"4.2","versionType":"semver"},{"version":"5.10.273","status":"unaffected","lessThanOrEqual":"5.10.*","versionType":"semver"},{"version":"5.15.221","status":"unaffected","lessThanOrEqual":"5.15.*","versionType":"semver"},{"version":"6.1.188","status":"unaffected","lessThanOrEqual":"6.1.*","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/bq24257_charger.c"]}],"references":["https://git.kernel.org/stable/c/9aace29bbcfa64450c53773ed2f20e95987b3690","https://git.kernel.org/stable/c/9d77fd7dd9a3ad57f7655c5264b503b85adbb7b8","https://git.kernel.org/stable/c/a279e64c907f5638bb34cb8e2c9285798cf5f690","https://git.kernel.org/stable/c/6d2eb93975c07b0169a3287efc1ae3b60cf52d8e","https://git.kernel.org/stable/c/861ec73ce86e2ca18082cc7be4f140a5bbdf1428","https://git.kernel.org/stable/c/f495808cdd6d9576965787cf6d9737d0b0e86b73","https://git.kernel.org/stable/c/47ccbad210f48721c30d69d65b83dc9fff919ca9","https://git.kernel.org/stable/c/9d34c9d660c3d0931d2cc749c46c47cf31f96e48"],"weaknesses":[],"ingestedAt":"2026-10-30T12:50:04.827Z","source":{"repository":"CVEProject/cvelistV5","path":"cves/2026/89xxx/CVE-2026-89475.json","commit":"1f312381e38164a43607eebab851b151dd16861e","baselineCommit":"556c9d3a8cd17e218bb8e452ba7cd619a384ff47"},"raw":{"dataType":"CVE_RECORD","dataVersion":"5.2","cveMetadata":{"cveId":"CVE-2026-89475","state":"PUBLISHED","datePublished":"2026-09-11T19:43:32.537Z","dateUpdated":"2026-10-30T12:31:51.693Z","assignerShortName":"Linux","assignerOrgId":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","dateReserved":"2026-09-11T19:38:34.710Z"},"containers":{"cna":{"title":"power: supply: bq24257: fix use-after-free on remove","descriptions":[{"lang":"en","value":"In the Linux kernel, the following vulnerability has been resolved:\n\npower: supply: bq24257: fix use-after-free on remove\n\nThe STAT-pin interrupt is devm-managed, so it stays armed until the devm\ncleanup that runs after remove() returns. remove() cancels\nbq->iilimit_setup_work while the threaded handler can still fire; that\nhandler reschedules the work and dereferences bq, so the work runs\nagainst freed memory once devm frees bq.\n\nMake the delayed work device-managed with devm_delayed_work_autocancel(),\nregistered before the interrupt request. The devm cleanup then releases\nthe interrupt first, so the handler can no longer reschedule the work,\nand cancels the work before bq is freed. The explicit\ncancel_delayed_work_sync() in remove() is no longer needed and is dropped.\n\nFound by static analysis."}],"affected":[{"vendor":"Linux","product":"Linux","defaultStatus":"unaffected","versions":[{"version":"2219a935963e5eeb19e5abfb99475fcc06bbb804","status":"affected","lessThan":"9aace29bbcfa64450c53773ed2f20e95987b3690","versionType":"git"},{"version":"2219a935963e5eeb19e5abfb99475fcc06bbb804","status":"affected","lessThan":"9d77fd7dd9a3ad57f7655c5264b503b85adbb7b8","versionType":"git"},{"version":"2219a935963e5eeb19e5abfb99475fcc06bbb804","status":"affected","lessThan":"a279e64c907f5638bb34cb8e2c9285798cf5f690","versionType":"git"},{"version":"2219a935963e5eeb19e5abfb99475fcc06bbb804","status":"affected","lessThan":"6d2eb93975c07b0169a3287efc1ae3b60cf52d8e","versionType":"git"},{"version":"2219a935963e5eeb19e5abfb99475fcc06bbb804","status":"affected","lessThan":"861ec73ce86e2ca18082cc7be4f140a5bbdf1428","versionType":"git"},{"version":"2219a935963e5eeb19e5abfb99475fcc06bbb804","status":"affected","lessThan":"f495808cdd6d9576965787cf6d9737d0b0e86b73","versionType":"git"},{"version":"2219a935963e5eeb19e5abfb99475fcc06bbb804","status":"affected","lessThan":"47ccbad210f48721c30d69d65b83dc9fff919ca9","versionType":"git"},{"version":"2219a935963e5eeb19e5abfb99475fcc06bbb804","status":"affected","lessThan":"9d34c9d660c3d0931d2cc749c46c47cf31f96e48","versionType":"git"}],"repo":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git","programFiles":["drivers/power/supply/bq24257_charger.c"]},{"vendor":"Linux","product":"Linux","defaultStatus":"affected","versions":[{"version":"4.2","status":"affected"},{"version":"0","status":"unaffected","lessThan":"4.2","versionType":"semver"},{"version":"5.10.273","status":"unaffected","lessThanOrEqual":"5.10.*","versionType":"semver"},{"version":"5.15.221","status":"unaffected","lessThanOrEqual":"5.15.*","versionType":"semver"},{"version":"6.1.188","status":"unaffected","lessThanOrEqual":"6.1.*","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/bq24257_charger.c"]}],"references":[{"url":"https://git.kernel.org/stable/c/9aace29bbcfa64450c53773ed2f20e95987b3690"},{"url":"https://git.kernel.org/stable/c/9d77fd7dd9a3ad57f7655c5264b503b85adbb7b8"},{"url":"https://git.kernel.org/stable/c/a279e64c907f5638bb34cb8e2c9285798cf5f690"},{"url":"https://git.kernel.org/stable/c/6d2eb93975c07b0169a3287efc1ae3b60cf52d8e"},{"url":"https://git.kernel.org/stable/c/861ec73ce86e2ca18082cc7be4f140a5bbdf1428"},{"url":"https://git.kernel.org/stable/c/f495808cdd6d9576965787cf6d9737d0b0e86b73"},{"url":"https://git.kernel.org/stable/c/47ccbad210f48721c30d69d65b83dc9fff919ca9"},{"url":"https://git.kernel.org/stable/c/9d34c9d660c3d0931d2cc749c46c47cf31f96e48"}],"providerMetadata":{"shortName":"Linux","orgId":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","dateUpdated":"2026-10-30T12:31:51.693Z"},"cpeApplicability":[{"nodes":[{"operator":"OR","negate":false,"cpeMatch":[{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"4.2","versionEndExcluding":"5.10.273"},{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"4.2","versionEndExcluding":"5.15.221"},{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"4.2","versionEndExcluding":"6.1.188"},{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"4.2","versionEndExcluding":"6.6.157"},{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"4.2","versionEndExcluding":"6.12.109"},{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"4.2","versionEndExcluding":"6.18.50"},{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"4.2","versionEndExcluding":"7.2.4"},{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"4.2","versionEndExcluding":"7.3"}]}]}],"x_generator":{"engine":"bippy-1.2.0"}}}}}