CVE-2026-89474

{"dataType": "CVE_RECORD", "dataVersion": "5.2", "cveMetadata": {"cveId": "CVE-2026-89474", "assignerOrgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "state": "PUBLISHED", "assignerShortName": "Linux", "dateReserved": "2026-09-11T19:38:34.710Z", "datePublished": "2026-09-11T19:43:31.882Z", "dateUpdated": "2026-10-19T08:47:23.191Z"}, "containers": {"cna": {"providerMetadata": {"orgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "shortName": "Linux", "dateUpdated": "2026-10-19T08:47:23.191Z"}, "descriptions": [{"lang": "en", "value": "In the Linux kernel, the following vulnerability has been resolved:\n\npower: supply: bq256xx: drain usb_work before freeing the charger\n\nThe USB-PHY notifier queues usb_work, whose handler calls\npower_supply_changed(bq->charger). The reset devm action only unregisters\nthe notifier and was registered before the power supplies, so devm frees\nbq->charger on unwind before the action runs; a usb_work still queued can\nthen dereference it.\n\nRegister the reset action after the power supplies, so it unregisters\nthe notifiers and drains usb_work before the supplies are released.\nInitialize usb_work and obtain the PHY references before registering\nthe notifiers, so the worker cannot run before the supplies exist.\n\nFound by static analysis."}], "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": "9dcfdf6c598301b278f0b3490eb2bf4f600524e2", "status": "affected", "versionType": "git"}, {"version": "32e4978bb920d047fe5de3ea42d176f267c01f63", "lessThan": "fd08d4dbbec07a44f01b0ddb041912be0dc88f8c", "status": "affected", "versionType": "git"}, {"version": "32e4978bb920d047fe5de3ea42d176f267c01f63", "lessThan": "2cfb59dc9df8b5ebdd95e3d874a7f4690cee2bc8", "status": "affected", "versionType": "git"}, {"version": "32e4978bb920d047fe5de3ea42d176f267c01f63", "lessThan": "9a467bd1e6811011026ad4c8de701b940d88a00c", "status": "affected", "versionType": "git"}, {"version": "32e4978bb920d047fe5de3ea42d176f267c01f63", "lessThan": "9e1aba34df9a87d53460888e05718717c0f69343", "status": "affected", "versionType": "git"}, {"version": "32e4978bb920d047fe5de3ea42d176f267c01f63", "lessThan": "c8addb842ae8dcf69c15fc976e33e3bd538a41d7", "status": "affected", "versionType": "git"}, {"version": "32e4978bb920d047fe5de3ea42d176f267c01f63", "lessThan": "2dd6cd823777bea6d9a880a12a92a73ec76aee0b", "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": "5.15.221", "lessThanOrEqual": "5.15.*", "status": "unaffected", "versionType": "semver"}, {"version": "6.1.188", "lessThanOrEqual": "6.1.*", "status": "unaffected", "versionType": "semver"}, {"version": "6.6.157", "lessThanOrEqual": "6.6.*", "status": "unaffected", "versionType": "semver"}, {"version": "6.12.109", "lessThanOrEqual": "6.12.*", "status": "unaffected", "versionType": "semver"}, {"version": "6.18.50", "lessThanOrEqual": "6.18.*", "status": "unaffected", "versionType": "semver"}, {"version": "7.2.4", "lessThanOrEqual": "7.2.*", "status": "unaffected", "versionType": "semver"}, {"version": "7.3", "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": "5.15.221"}, {"vulnerable": true, "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "versionStartIncluding": "5.12", "versionEndExcluding": "6.1.188"}, {"vulnerable": true, "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "versionStartIncluding": "5.12", "versionEndExcluding": "6.6.157"}, {"vulnerable": true, "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "versionStartIncluding": "5.12", "versionEndExcluding": "6.12.109"}, {"vulnerable": true, "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "versionStartIncluding": "5.12", "versionEndExcluding": "6.18.50"}, {"vulnerable": true, "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "versionStartIncluding": "5.12", "versionEndExcluding": "7.2.4"}, {"vulnerable": true, "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "versionStartIncluding": "5.12", "versionEndExcluding": "7.3"}]}]}], "references": [{"url": "https://git.kernel.org/stable/c/9dcfdf6c598301b278f0b3490eb2bf4f600524e2"}, {"url": "https://git.kernel.org/stable/c/fd08d4dbbec07a44f01b0ddb041912be0dc88f8c"}, {"url": "https://git.kernel.org/stable/c/2cfb59dc9df8b5ebdd95e3d874a7f4690cee2bc8"}, {"url": "https://git.kernel.org/stable/c/9a467bd1e6811011026ad4c8de701b940d88a00c"}, {"url": "https://git.kernel.org/stable/c/9e1aba34df9a87d53460888e05718717c0f69343"}, {"url": "https://git.kernel.org/stable/c/c8addb842ae8dcf69c15fc976e33e3bd538a41d7"}, {"url": "https://git.kernel.org/stable/c/2dd6cd823777bea6d9a880a12a92a73ec76aee0b"}], "title": "power: supply: bq256xx: drain usb_work before freeing the charger", "x_generator": {"engine": "bippy-1.2.0"}}}}

{}

{"affected": [{"affectedData": [{"defaultStatus": "unaffected", "product": "Linux", "programFiles": ["drivers/power/supply/bq256xx_charger.c"], "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git", "vendor": "Linux", "versions": [{"lessThan": "9dcfdf6c598301b278f0b3490eb2bf4f600524e2", "status": "affected", "version": "32e4978bb920d047fe5de3ea42d176f267c01f63", "versionType": "git"}, {"lessThan": "fd08d4dbbec07a44f01b0ddb041912be0dc88f8c", "status": "affected", "version": "32e4978bb920d047fe5de3ea42d176f267c01f63", "versionType": "git"}, {"lessThan": "2cfb59dc9df8b5ebdd95e3d874a7f4690cee2bc8", "status": "affected", "version": "32e4978bb920d047fe5de3ea42d176f267c01f63", "versionType": "git"}, {"lessThan": "9a467bd1e6811011026ad4c8de701b940d88a00c", "status": "affected", "version": "32e4978bb920d047fe5de3ea42d176f267c01f63", "versionType": "git"}, {"lessThan": "9e1aba34df9a87d53460888e05718717c0f69343", "status": "affected", "version": "32e4978bb920d047fe5de3ea42d176f267c01f63", "versionType": "git"}, {"lessThan": "c8addb842ae8dcf69c15fc976e33e3bd538a41d7", "status": "affected", "version": "32e4978bb920d047fe5de3ea42d176f267c01f63", "versionType": "git"}, {"lessThan": "2dd6cd823777bea6d9a880a12a92a73ec76aee0b", "status": "affected", "version": "32e4978bb920d047fe5de3ea42d176f267c01f63", "versionType": "git"}]}, {"defaultStatus": "affected", "product": "Linux", "programFiles": ["drivers/power/supply/bq256xx_charger.c"], "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git", "vendor": "Linux", "versions": [{"status": "affected", "version": "5.12"}, {"lessThan": "5.12", "status": "unaffected", "version": "0", "versionType": "semver"}, {"lessThanOrEqual": "5.15.*", "status": "unaffected", "version": "5.15.221", "versionType": "semver"}, {"lessThanOrEqual": "6.1.*", "status": "unaffected", "version": "6.1.188", "versionType": "semver"}, {"lessThanOrEqual": "6.6.*", "status": "unaffected", "version": "6.6.157", "versionType": "semver"}, {"lessThanOrEqual": "6.12.*", "status": "unaffected", "version": "6.12.109", "versionType": "semver"}, {"lessThanOrEqual": "6.18.*", "status": "unaffected", "version": "6.18.50", "versionType": "semver"}, {"lessThanOrEqual": "7.2.*", "status": "unaffected", "version": "7.2.4", "versionType": "semver"}, {"lessThanOrEqual": "*", "status": "unaffected", "version": "7.3", "versionType": "original_commit_for_fix"}]}], "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67"}], "cveTags": [], "descriptions": [{"lang": "en", "value": "In the Linux kernel, the following vulnerability has been resolved:\n\npower: supply: bq256xx: drain usb_work before freeing the charger\n\nThe USB-PHY notifier queues usb_work, whose handler calls\npower_supply_changed(bq->charger). The reset devm action only unregisters\nthe notifier and was registered before the power supplies, so devm frees\nbq->charger on unwind before the action runs; a usb_work still queued can\nthen dereference it.\n\nRegister the reset action after the power supplies, so it unregisters\nthe notifiers and drains usb_work before the supplies are released.\nInitialize usb_work and obtain the PHY references before registering\nthe notifiers, so the worker cannot run before the supplies exist.\n\nFound by static analysis."}], "id": "CVE-2026-89474", "lastModified": "2026-10-19T09:17:40.277", "metrics": {}, "published": "2026-09-11T20:19:28.687", "references": [{"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "url": "https://git.kernel.org/stable/c/2cfb59dc9df8b5ebdd95e3d874a7f4690cee2bc8"}, {"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "url": "https://git.kernel.org/stable/c/2dd6cd823777bea6d9a880a12a92a73ec76aee0b"}, {"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "url": "https://git.kernel.org/stable/c/9a467bd1e6811011026ad4c8de701b940d88a00c"}, {"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "url": "https://git.kernel.org/stable/c/9dcfdf6c598301b278f0b3490eb2bf4f600524e2"}, {"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "url": "https://git.kernel.org/stable/c/9e1aba34df9a87d53460888e05718717c0f69343"}, {"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "url": "https://git.kernel.org/stable/c/c8addb842ae8dcf69c15fc976e33e3bd538a41d7"}, {"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "url": "https://git.kernel.org/stable/c/fd08d4dbbec07a44f01b0ddb041912be0dc88f8c"}], "sourceIdentifier": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "vulnStatus": "Received"}

{"bugzilla": {"description": "kernel: Linux kernel: Use-after-free in bq256xx power supply driver", "id": "2532371", "url": "https://bugzilla.redhat.com/show_bug.cgi?id=2532371"}, "csaw": false, "cvss3": {"cvss3_base_score": "4.4", "cvss3_scoring_vector": "CVSS:3.1/AV:L/AC:L/PR:H/UI:N/S:U/C:N/I:N/A:H", "status": "draft"}, "cwe": "CWE-825", "details": ["A flaw was found in the Linux kernel's power supply subsystem, specifically within the bq256xx driver. This vulnerability occurs when a USB work item attempts to access a charger object after it has been freed. This timing issue can lead to a use-after-free condition, potentially causing system instability or a denial of service."], "name": "CVE-2026-89474", "public_date": "2026-09-11T19:43:31Z", "references": ["https://www.cve.org/CVERecord?id=CVE-2026-89474\nhttps://nvd.nist.gov/vuln/detail/CVE-2026-89474\nhttps://git.kernel.org/stable/c/2dd6cd823777bea6d9a880a12a92a73ec76aee0b\nhttps://git.kernel.org/stable/c/9a467bd1e6811011026ad4c8de701b940d88a00c\nhttps://git.kernel.org/stable/c/9e1aba34df9a87d53460888e05718717c0f69343\nhttps://git.kernel.org/stable/c/c8addb842ae8dcf69c15fc976e33e3bd538a41d7"], "threat_severity": "Moderate"}

{"affected": [{"configurations": [{"platform": null, "status": "affected", "versions": {"scheme": "code_commit", "value": "[32e4978bb920d047fe5de3ea42d176f267c01f63,9a467bd1e6811011026ad4c8de701b940d88a00c)"}}, {"platform": null, "status": "affected", "versions": {"scheme": "code_commit", "value": "[32e4978bb920d047fe5de3ea42d176f267c01f63,9e1aba34df9a87d53460888e05718717c0f69343)"}}, {"platform": null, "status": "affected", "versions": {"scheme": "code_commit", "value": "[32e4978bb920d047fe5de3ea42d176f267c01f63,c8addb842ae8dcf69c15fc976e33e3bd538a41d7)"}}, {"platform": null, "status": "affected", "versions": {"scheme": "code_commit", "value": "[32e4978bb920d047fe5de3ea42d176f267c01f63,2dd6cd823777bea6d9a880a12a92a73ec76aee0b)"}}], "enrichment": {"confidence": 99.0, "confidence_source": "inferred", "scores": [{"score": 99.0, "source": "inferred"}, {"score": 100.0, "source": "matching"}]}, "original": {"product": "Linux", "source": "cna", "vendor": "Linux"}, "product": "linux_kernel", "vendor": "linux"}, {"configurations": [{"platform": null, "status": "affected", "versions": {"scheme": "generic", "value": "5.12"}}, {"platform": null, "status": "unaffected", "versions": {"scheme": "generic", "value": "[0,5.12)"}}, {"platform": null, "status": "unaffected", "versions": {"scheme": "semver", "value": "[6.12.109,6.13.0)"}}, {"platform": null, "status": "unaffected", "versions": {"scheme": "semver", "value": "[6.18.50,6.19.0)"}}, {"platform": null, "status": "unaffected", "versions": {"scheme": "semver", "value": "[7.2.4,7.3.0)"}}, {"platform": null, "status": "unaffected", "versions": {"scheme": "generic", "value": "[7.3-rc1,*]"}}], "enrichment": {"confidence": 99.0, "confidence_source": "inferred", "scores": [{"score": 99.0, "source": "inferred"}, {"score": 100.0, "source": "matching"}]}, "original": {"product": "Linux", "source": "cna", "vendor": "Linux"}, "product": "linux_kernel", "vendor": "linux"}], "created": "2026-09-12T10:30:13.420287+00:00", "updated": "2026-09-15T23:00:16.560640+00:00", "vendors": ["linux", "linux$PRODUCT$linux_kernel"]}