CVE-2026-72214

{"dataType": "CVE_RECORD", "dataVersion": "5.2", "cveMetadata": {"cveId": "CVE-2026-72214", "assignerOrgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "state": "PUBLISHED", "assignerShortName": "Linux", "dateReserved": "2026-08-09T03:40:39.912Z", "datePublished": "2026-08-15T05:54:08.602Z", "dateUpdated": "2026-08-17T05:10:28.814Z"}, "containers": {"cna": {"providerMetadata": {"orgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "shortName": "Linux", "dateUpdated": "2026-08-17T05:10:28.814Z"}, "descriptions": [{"lang": "en", "value": "In the Linux kernel, the following vulnerability has been resolved:\n\npower: supply: cpcap-battery: Fix missing nvmem_device_put() causing reference leak\n\nIn cpcap_battery_detect_battery_type(), the reference to an nvmem\ndevice obtained via nvmem_device_find() is not released with\nnvmem_device_put() on the success or read-failure paths, causing a\npermanent reference leak. The driver\u2019s retry logic on subsequent\nbattery property reads can compound this leak, preventing the nvmem\ndevice from ever being freed.\n\nFound by code review."}], "affected": [{"product": "Linux", "vendor": "Linux", "defaultStatus": "unaffected", "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git", "programFiles": ["drivers/power/supply/cpcap-battery.c"], "versions": [{"version": "fd46821e85de90fb5b7356251164af4815b6e3f6", "lessThan": "fc65520fe0781a1ff46631f111e07b4a1c677b96", "status": "affected", "versionType": "git"}, {"version": "fd46821e85de90fb5b7356251164af4815b6e3f6", "lessThan": "700c225d829a1256b59053c34a1a9d1a6ab70b09", "status": "affected", "versionType": "git"}, {"version": "fd46821e85de90fb5b7356251164af4815b6e3f6", "lessThan": "deaf6b3f8187231ad8f7770b10ed0be2cd47e9b2", "status": "affected", "versionType": "git"}, {"version": "fd46821e85de90fb5b7356251164af4815b6e3f6", "lessThan": "a3d81de441233a92ec21469cd0c4eb3c26b95cd8", "status": "affected", "versionType": "git"}, {"version": "fd46821e85de90fb5b7356251164af4815b6e3f6", "lessThan": "b56a5cbf8f1f1a5740f1137c89b14d0373309d8d", "status": "affected", "versionType": "git"}, {"version": "fd46821e85de90fb5b7356251164af4815b6e3f6", "lessThan": "a2c14ff63e0e02e3c832385e523e9cc81301171c", "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/cpcap-battery.c"], "versions": [{"version": "5.18", "status": "affected"}, {"version": "0", "lessThan": "5.18", "status": "unaffected", "versionType": "semver"}, {"version": "6.1.178", "lessThanOrEqual": "6.1.*", "status": "unaffected", "versionType": "semver"}, {"version": "6.6.145", "lessThanOrEqual": "6.6.*", "status": "unaffected", "versionType": "semver"}, {"version": "6.12.97", "lessThanOrEqual": "6.12.*", "status": "unaffected", "versionType": "semver"}, {"version": "6.18.40", "lessThanOrEqual": "6.18.*", "status": "unaffected", "versionType": "semver"}, {"version": "7.1.5", "lessThanOrEqual": "7.1.*", "status": "unaffected", "versionType": "semver"}, {"version": "7.2", "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": "5.18", "versionEndExcluding": "6.1.178"}, {"vulnerable": true, "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "versionStartIncluding": "5.18", "versionEndExcluding": "6.6.145"}, {"vulnerable": true, "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "versionStartIncluding": "5.18", "versionEndExcluding": "6.12.97"}, {"vulnerable": true, "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "versionStartIncluding": "5.18", "versionEndExcluding": "6.18.40"}, {"vulnerable": true, "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "versionStartIncluding": "5.18", "versionEndExcluding": "7.1.5"}, {"vulnerable": true, "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "versionStartIncluding": "5.18", "versionEndExcluding": "7.2"}]}]}], "references": [{"url": "https://git.kernel.org/stable/c/fc65520fe0781a1ff46631f111e07b4a1c677b96"}, {"url": "https://git.kernel.org/stable/c/700c225d829a1256b59053c34a1a9d1a6ab70b09"}, {"url": "https://git.kernel.org/stable/c/deaf6b3f8187231ad8f7770b10ed0be2cd47e9b2"}, {"url": "https://git.kernel.org/stable/c/a3d81de441233a92ec21469cd0c4eb3c26b95cd8"}, {"url": "https://git.kernel.org/stable/c/b56a5cbf8f1f1a5740f1137c89b14d0373309d8d"}, {"url": "https://git.kernel.org/stable/c/a2c14ff63e0e02e3c832385e523e9cc81301171c"}], "title": "power: supply: cpcap-battery: Fix missing nvmem_device_put() causing reference leak", "x_generator": {"engine": "bippy-1.2.0"}}}}

{}

{"affected": [{"affectedData": [{"defaultStatus": "unaffected", "product": "Linux", "programFiles": ["drivers/power/supply/cpcap-battery.c"], "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git", "vendor": "Linux", "versions": [{"lessThan": "fc65520fe0781a1ff46631f111e07b4a1c677b96", "status": "affected", "version": "fd46821e85de90fb5b7356251164af4815b6e3f6", "versionType": "git"}, {"lessThan": "700c225d829a1256b59053c34a1a9d1a6ab70b09", "status": "affected", "version": "fd46821e85de90fb5b7356251164af4815b6e3f6", "versionType": "git"}, {"lessThan": "deaf6b3f8187231ad8f7770b10ed0be2cd47e9b2", "status": "affected", "version": "fd46821e85de90fb5b7356251164af4815b6e3f6", "versionType": "git"}, {"lessThan": "a3d81de441233a92ec21469cd0c4eb3c26b95cd8", "status": "affected", "version": "fd46821e85de90fb5b7356251164af4815b6e3f6", "versionType": "git"}, {"lessThan": "b56a5cbf8f1f1a5740f1137c89b14d0373309d8d", "status": "affected", "version": "fd46821e85de90fb5b7356251164af4815b6e3f6", "versionType": "git"}, {"lessThan": "a2c14ff63e0e02e3c832385e523e9cc81301171c", "status": "affected", "version": "fd46821e85de90fb5b7356251164af4815b6e3f6", "versionType": "git"}]}, {"defaultStatus": "affected", "product": "Linux", "programFiles": ["drivers/power/supply/cpcap-battery.c"], "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git", "vendor": "Linux", "versions": [{"status": "affected", "version": "5.18"}, {"lessThan": "5.18", "status": "unaffected", "version": "0", "versionType": "semver"}, {"lessThanOrEqual": "6.1.*", "status": "unaffected", "version": "6.1.178", "versionType": "semver"}, {"lessThanOrEqual": "6.6.*", "status": "unaffected", "version": "6.6.145", "versionType": "semver"}, {"lessThanOrEqual": "6.12.*", "status": "unaffected", "version": "6.12.97", "versionType": "semver"}, {"lessThanOrEqual": "6.18.*", "status": "unaffected", "version": "6.18.40", "versionType": "semver"}, {"lessThanOrEqual": "7.1.*", "status": "unaffected", "version": "7.1.5", "versionType": "semver"}, {"lessThanOrEqual": "*", "status": "unaffected", "version": "7.2", "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: cpcap-battery: Fix missing nvmem_device_put() causing reference leak\n\nIn cpcap_battery_detect_battery_type(), the reference to an nvmem\ndevice obtained via nvmem_device_find() is not released with\nnvmem_device_put() on the success or read-failure paths, causing a\npermanent reference leak. The driver\u2019s retry logic on subsequent\nbattery property reads can compound this leak, preventing the nvmem\ndevice from ever being freed.\n\nFound by code review."}], "id": "CVE-2026-72214", "lastModified": "2026-08-17T06:18:22.370", "metrics": {}, "published": "2026-08-15T06:21:40.130", "references": [{"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "url": "https://git.kernel.org/stable/c/700c225d829a1256b59053c34a1a9d1a6ab70b09"}, {"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "url": "https://git.kernel.org/stable/c/a2c14ff63e0e02e3c832385e523e9cc81301171c"}, {"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "url": "https://git.kernel.org/stable/c/a3d81de441233a92ec21469cd0c4eb3c26b95cd8"}, {"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "url": "https://git.kernel.org/stable/c/b56a5cbf8f1f1a5740f1137c89b14d0373309d8d"}, {"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "url": "https://git.kernel.org/stable/c/deaf6b3f8187231ad8f7770b10ed0be2cd47e9b2"}, {"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "url": "https://git.kernel.org/stable/c/fc65520fe0781a1ff46631f111e07b4a1c677b96"}], "sourceIdentifier": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "vulnStatus": "Received"}

{"bugzilla": {"description": "kernel: power: supply: cpcap-battery: Fix missing nvmem_device_put() causing reference leak", "id": "2516485", "url": "https://bugzilla.redhat.com/show_bug.cgi?id=2516485"}, "csaw": false, "cvss3": {"cvss3_base_score": "5.5", "cvss3_scoring_vector": "CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H", "status": "draft"}, "cwe": "CWE-772", "details": ["A flaw was found in the Linux kernel's `cpcap-battery` driver. This vulnerability occurs because a reference to a non-volatile memory (nvmem) device is not properly released after being acquired. Repeated attempts to read battery properties can exacerbate this issue, leading to a permanent memory leak. This can ultimately result in resource exhaustion, potentially causing system instability or a denial of service."], "name": "CVE-2026-72214", "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": "2026-08-15T00:00:00Z", "references": ["https://www.cve.org/CVERecord?id=CVE-2026-72214\nhttps://nvd.nist.gov/vuln/detail/CVE-2026-72214\nhttps://lore.kernel.org/linux-cve-announce/2026081546-CVE-2026-72214-1711@gregkh/T"], "threat_severity": "Moderate"}

{"affected": [{"configurations": [{"platform": null, "status": "affected", "versions": {"scheme": "code_commit", "value": "[fd46821e85de90fb5b7356251164af4815b6e3f6,fc65520fe0781a1ff46631f111e07b4a1c677b96)"}}, {"platform": null, "status": "affected", "versions": {"scheme": "code_commit", "value": "[fd46821e85de90fb5b7356251164af4815b6e3f6,700c225d829a1256b59053c34a1a9d1a6ab70b09)"}}, {"platform": null, "status": "affected", "versions": {"scheme": "code_commit", "value": "[fd46821e85de90fb5b7356251164af4815b6e3f6,deaf6b3f8187231ad8f7770b10ed0be2cd47e9b2)"}}, {"platform": null, "status": "affected", "versions": {"scheme": "code_commit", "value": "[fd46821e85de90fb5b7356251164af4815b6e3f6,a3d81de441233a92ec21469cd0c4eb3c26b95cd8)"}}, {"platform": null, "status": "affected", "versions": {"scheme": "code_commit", "value": "[fd46821e85de90fb5b7356251164af4815b6e3f6,b56a5cbf8f1f1a5740f1137c89b14d0373309d8d)"}}, {"platform": null, "status": "affected", "versions": {"scheme": "code_commit", "value": "[fd46821e85de90fb5b7356251164af4815b6e3f6,a2c14ff63e0e02e3c832385e523e9cc81301171c)"}}], "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": "5.18"}}, {"platform": null, "status": "unaffected", "versions": {"scheme": "generic", "value": "[0,5.18)"}}, {"platform": null, "status": "unaffected", "versions": {"scheme": "semver", "value": "[6.1.178,6.2.0)"}}, {"platform": null, "status": "unaffected", "versions": {"scheme": "semver", "value": "[6.6.145,6.7.0)"}}, {"platform": null, "status": "unaffected", "versions": {"scheme": "semver", "value": "[6.12.97,6.13.0)"}}, {"platform": null, "status": "unaffected", "versions": {"scheme": "semver", "value": "[6.18.40,6.19.0)"}}, {"platform": null, "status": "unaffected", "versions": {"scheme": "semver", "value": "[7.1.5,7.2.0)"}}, {"platform": null, "status": "unaffected", "versions": {"scheme": "semver", "value": "[7.2-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": "2026-08-15T16:45:10.666713+00:00", "updated": "2026-08-22T08:30:17.812165+00:00", "vendors": ["linux", "linux$PRODUCT$linux_kernel"], "weaknesses": ["CWE-772"]}