CVE-2026-46246

{"dataType": "CVE_RECORD", "dataVersion": "5.2", "cveMetadata": {"cveId": "CVE-2026-46246", "assignerOrgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "state": "PUBLISHED", "assignerShortName": "Linux", "dateReserved": "2026-05-13T15:03:33.107Z", "datePublished": "2026-06-03T15:49:41.607Z", "dateUpdated": "2026-06-03T15:49:41.607Z"}, "containers": {"cna": {"providerMetadata": {"orgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "shortName": "Linux", "dateUpdated": "2026-06-03T15:49:41.607Z"}, "descriptions": [{"lang": "en", "value": "In the Linux kernel, the following vulnerability has been resolved:\n\npower: supply: pm8916_lbc: Fix use-after-free for extcon in IRQ handler\n\nUsing the `devm_` variant for requesting IRQ _before_ the `devm_`\nvariant for allocating/registering the `extcon` handle, means that the\n`extcon` handle will be deallocated/unregistered _before_ the interrupt\nhandler (since `devm_` naturally deallocates in reverse allocation\norder). This means that during removal, there is a race condition where\nan interrupt can fire just _after_ the `extcon` handle has been\nfreed, *but* just _before_ the corresponding unregistration of the IRQ\nhandler has run.\n\nThis will lead to the IRQ handler calling `extcon_set_state_sync()` with\na freed `extcon` handle. Which usually crashes the system or otherwise\nsilently corrupts the memory...\n\nFix this racy use-after-free by making sure the IRQ is requested _after_\nthe registration of the `extcon` 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/pm8916_lbc.c"], "versions": [{"version": "f8d7a3d21160a0cab4d15b81231f2a76b0fcee13", "lessThan": "9fab0120907e6965168e55b1e17cb9dfaf262b86", "status": "affected", "versionType": "git"}, {"version": "f8d7a3d21160a0cab4d15b81231f2a76b0fcee13", "lessThan": "47abfc207ab02cf1297257e282e8048da63f0d08", "status": "affected", "versionType": "git"}, {"version": "f8d7a3d21160a0cab4d15b81231f2a76b0fcee13", "lessThan": "48e0f68b50c344bb2d78d65dd98f93e41276ee00", "status": "affected", "versionType": "git"}, {"version": "f8d7a3d21160a0cab4d15b81231f2a76b0fcee13", "lessThan": "23067259919663580c6f81801847cfc7bd54fd1f", "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/pm8916_lbc.c"], "versions": [{"version": "6.7", "status": "affected"}, {"version": "0", "lessThan": "6.7", "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": "6.7", "versionEndExcluding": "6.12.75"}, {"vulnerable": true, "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "versionStartIncluding": "6.7", "versionEndExcluding": "6.18.14"}, {"vulnerable": true, "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "versionStartIncluding": "6.7", "versionEndExcluding": "6.19.4"}, {"vulnerable": true, "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "versionStartIncluding": "6.7", "versionEndExcluding": "7.0"}]}]}], "references": [{"url": "https://git.kernel.org/stable/c/9fab0120907e6965168e55b1e17cb9dfaf262b86"}, {"url": "https://git.kernel.org/stable/c/47abfc207ab02cf1297257e282e8048da63f0d08"}, {"url": "https://git.kernel.org/stable/c/48e0f68b50c344bb2d78d65dd98f93e41276ee00"}, {"url": "https://git.kernel.org/stable/c/23067259919663580c6f81801847cfc7bd54fd1f"}], "title": "power: supply: pm8916_lbc: Fix use-after-free for extcon in IRQ handler", "x_generator": {"engine": "bippy-1.2.0"}}}}

{}

{"affected": [{"affectedData": [{"defaultStatus": "unaffected", "product": "Linux", "programFiles": ["drivers/power/supply/pm8916_lbc.c"], "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git", "vendor": "Linux", "versions": [{"lessThan": "9fab0120907e6965168e55b1e17cb9dfaf262b86", "status": "affected", "version": "f8d7a3d21160a0cab4d15b81231f2a76b0fcee13", "versionType": "git"}, {"lessThan": "47abfc207ab02cf1297257e282e8048da63f0d08", "status": "affected", "version": "f8d7a3d21160a0cab4d15b81231f2a76b0fcee13", "versionType": "git"}, {"lessThan": "48e0f68b50c344bb2d78d65dd98f93e41276ee00", "status": "affected", "version": "f8d7a3d21160a0cab4d15b81231f2a76b0fcee13", "versionType": "git"}, {"lessThan": "23067259919663580c6f81801847cfc7bd54fd1f", "status": "affected", "version": "f8d7a3d21160a0cab4d15b81231f2a76b0fcee13", "versionType": "git"}]}, {"defaultStatus": "affected", "product": "Linux", "programFiles": ["drivers/power/supply/pm8916_lbc.c"], "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git", "vendor": "Linux", "versions": [{"status": "affected", "version": "6.7"}, {"lessThan": "6.7", "status": "unaffected", "version": "0", "versionType": "semver"}, {"lessThanOrEqual": "6.12.*", "status": "unaffected", "version": "6.12.75", "versionType": "semver"}, {"lessThanOrEqual": "6.18.*", "status": "unaffected", "version": "6.18.14", "versionType": "semver"}, {"lessThanOrEqual": "6.19.*", "status": "unaffected", "version": "6.19.4", "versionType": "semver"}, {"lessThanOrEqual": "*", "status": "unaffected", "version": "7.0", "versionType": "original_commit_for_fix"}]}], "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67"}], "configurations": [{"nodes": [{"cpeMatch": [{"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "matchCriteriaId": "BCE16369-98ED-41CF-8995-DFDC10B288D2", "versionEndExcluding": "6.12.75", "versionStartIncluding": "6.7", "vulnerable": true}, {"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "matchCriteriaId": "BF463CB7-1F58-4607-B847-77ED23E4B9B7", "versionEndExcluding": "6.18.14", "versionStartIncluding": "6.13", "vulnerable": true}, {"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "matchCriteriaId": "672A3E79-EC03-479D-8503-361DFBDC8092", "versionEndExcluding": "6.19.4", "versionStartIncluding": "6.19", "vulnerable": true}], "negate": false, "operator": "OR"}]}], "cveTags": [], "descriptions": [{"lang": "en", "value": "In the Linux kernel, the following vulnerability has been resolved:\n\npower: supply: pm8916_lbc: Fix use-after-free for extcon in IRQ handler\n\nUsing the `devm_` variant for requesting IRQ _before_ the `devm_`\nvariant for allocating/registering the `extcon` handle, means that the\n`extcon` handle will be deallocated/unregistered _before_ the interrupt\nhandler (since `devm_` naturally deallocates in reverse allocation\norder). This means that during removal, there is a race condition where\nan interrupt can fire just _after_ the `extcon` handle has been\nfreed, *but* just _before_ the corresponding unregistration of the IRQ\nhandler has run.\n\nThis will lead to the IRQ handler calling `extcon_set_state_sync()` with\na freed `extcon` handle. Which usually crashes the system or otherwise\nsilently corrupts the memory...\n\nFix this racy use-after-free by making sure the IRQ is requested _after_\nthe registration of the `extcon` handle."}, {"lang": "es", "value": "En el kernel de Linux, la siguiente vulnerabilidad ha sido resuelta:\n\npower: supply: pm8916_lbc: Correcci\u00f3n de uso despu\u00e9s de liberaci\u00f3n para extcon en el gestor IRQ\n\nUsar la variante 'devm_' para solicitar IRQ _antes_ de la variante 'devm_' para asignar/registrar el manejador 'extcon', significa que el manejador 'extcon' ser\u00e1 desasignado/dado de baja _antes_ del gestor de interrupciones (ya que 'devm_' desasigna naturalmente en orden inverso de asignaci\u00f3n). Esto significa que durante la eliminaci\u00f3n, hay una condici\u00f3n de carrera donde una interrupci\u00f3n puede dispararse justo _despu\u00e9s_ de que el manejador 'extcon' haya sido liberado, pero justo _antes_ de que se haya ejecutado la correspondiente anulaci\u00f3n de registro del gestor IRQ.\n\nEsto llevar\u00e1 a que el gestor IRQ llame a 'extcon_set_state_sync()' con un manejador 'extcon' liberado. Lo que usualmente bloquea el sistema o de otra manera corrompe silenciosamente la memoria...\n\nCorrige este uso despu\u00e9s de liberaci\u00f3n propenso a condiciones de carrera asegur\u00e1ndose de que la IRQ sea solicitada _despu\u00e9s_ del registro del manejador 'extcon'."}], "id": "CVE-2026-46246", "lastModified": "2026-07-22T20:10:00.127", "metrics": {"cvssMetricV31": [{"cvssData": {"attackComplexity": "LOW", "attackVector": "LOCAL", "availabilityImpact": "HIGH", "baseScore": 7.8, "baseSeverity": "HIGH", "confidentialityImpact": "HIGH", "integrityImpact": "HIGH", "privilegesRequired": "LOW", "scope": "UNCHANGED", "userInteraction": "NONE", "vectorString": "CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H", "version": "3.1"}, "exploitabilityScore": 1.8, "impactScore": 5.9, "source": "nvd@nist.gov", "type": "Primary"}]}, "published": "2026-06-03T18:16:24.793", "references": [{"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "tags": ["Patch"], "url": "https://git.kernel.org/stable/c/23067259919663580c6f81801847cfc7bd54fd1f"}, {"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "tags": ["Patch"], "url": "https://git.kernel.org/stable/c/47abfc207ab02cf1297257e282e8048da63f0d08"}, {"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "tags": ["Patch"], "url": "https://git.kernel.org/stable/c/48e0f68b50c344bb2d78d65dd98f93e41276ee00"}, {"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "tags": ["Patch"], "url": "https://git.kernel.org/stable/c/9fab0120907e6965168e55b1e17cb9dfaf262b86"}], "sourceIdentifier": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "vulnStatus": "Analyzed", "weaknesses": [{"description": [{"lang": "en", "value": "CWE-416"}], "source": "nvd@nist.gov", "type": "Primary"}]}

{"bugzilla": {"description": "kernel: power: supply: pm8916_lbc: Fix use-after-free for extcon in IRQ handler", "id": "2484471", "url": "https://bugzilla.redhat.com/show_bug.cgi?id=2484471"}, "csaw": false, "cwe": "CWE-825", "details": ["A flaw was found in the Linux kernel's `pm8916_lbc` power supply driver. A race condition during device removal can cause a 'use-after-free' vulnerability, where the system attempts to access memory that has already been deallocated. This can lead to system instability, including crashes, effectively causing a Denial of Service (DoS). A local attacker could potentially exploit this issue."], "name": "CVE-2026-46246", "package_state": [{"cpe": "cpe:/o:redhat:enterprise_linux:10", "fix_state": "Not affected", "package_name": "kernel", "product_name": "Red Hat Enterprise Linux 10"}, {"cpe": "cpe:/o:redhat:enterprise_linux:6", "fix_state": "Not affected", "package_name": "kernel", "product_name": "Red Hat Enterprise Linux 6"}, {"cpe": "cpe:/o:redhat:enterprise_linux:7", "fix_state": "Not affected", "package_name": "kernel", "product_name": "Red Hat Enterprise Linux 7"}, {"cpe": "cpe:/o:redhat:enterprise_linux:7", "fix_state": "Not affected", "package_name": "kernel-rt", "product_name": "Red Hat Enterprise Linux 7"}, {"cpe": "cpe:/o:redhat:enterprise_linux:8", "fix_state": "Not affected", "package_name": "kernel", "product_name": "Red Hat Enterprise Linux 8"}, {"cpe": "cpe:/o:redhat:enterprise_linux:8", "fix_state": "Not affected", "package_name": "kernel-rt", "product_name": "Red Hat Enterprise Linux 8"}, {"cpe": "cpe:/o:redhat:enterprise_linux:9", "fix_state": "Not affected", "package_name": "kernel", "product_name": "Red Hat Enterprise Linux 9"}, {"cpe": "cpe:/o:redhat:enterprise_linux:9", "fix_state": "Not affected", "package_name": "kernel-rt", "product_name": "Red Hat Enterprise Linux 9"}], "public_date": "2026-06-03T00:00:00Z", "references": ["https://www.cve.org/CVERecord?id=CVE-2026-46246\nhttps://nvd.nist.gov/vuln/detail/CVE-2026-46246\nhttps://lore.kernel.org/linux-cve-announce/2026060333-CVE-2026-46246-f24c@gregkh/T"]}

{"affected": [{"configurations": [{"platform": null, "status": "affected", "versions": {"scheme": "code_commit", "value": "[f8d7a3d21160a0cab4d15b81231f2a76b0fcee13,9fab0120907e6965168e55b1e17cb9dfaf262b86)"}}, {"platform": null, "status": "affected", "versions": {"scheme": "code_commit", "value": "[f8d7a3d21160a0cab4d15b81231f2a76b0fcee13,47abfc207ab02cf1297257e282e8048da63f0d08)"}}, {"platform": null, "status": "affected", "versions": {"scheme": "code_commit", "value": "[f8d7a3d21160a0cab4d15b81231f2a76b0fcee13,48e0f68b50c344bb2d78d65dd98f93e41276ee00)"}}, {"platform": null, "status": "affected", "versions": {"scheme": "code_commit", "value": "[f8d7a3d21160a0cab4d15b81231f2a76b0fcee13,23067259919663580c6f81801847cfc7bd54fd1f)"}}], "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": "6.7"}}, {"platform": null, "status": "unaffected", "versions": {"scheme": "generic", "value": "[0,6.7)"}}, {"platform": null, "status": "unaffected", "versions": {"scheme": "semver", "value": "[6.12.75,6.13.0)"}}, {"platform": null, "status": "unaffected", "versions": {"scheme": "semver", "value": "[6.18.14,6.19.0)"}}, {"platform": null, "status": "unaffected", "versions": {"scheme": "semver", "value": "[6.19.4,6.20.0)"}}, {"platform": null, "status": "unaffected", "versions": {"scheme": "generic", "value": "[7.0,*]"}}], "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": "2026-06-03T19:00:15.380802+00:00", "updated": "2026-06-09T23:15:16.737652+00:00", "vendors": ["linux", "linux$PRODUCT$linux_kernel"]}