{"dataType": "CVE_RECORD", "dataVersion": "5.2", "cveMetadata": {"cveId": "CVE-2026-98669", "assignerOrgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "state": "PUBLISHED", "assignerShortName": "Linux", "dateReserved": "2026-09-25T10:25:14.363Z", "datePublished": "2026-10-18T15:45:05.836Z", "dateUpdated": "2026-10-21T12:55:33.672Z"}, "containers": {"cna": {"providerMetadata": {"orgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "shortName": "Linux", "dateUpdated": "2026-10-21T12:55:33.672Z"}, "descriptions": [{"lang": "en", "value": "In the Linux kernel, the following vulnerability has been resolved:\n\niio: buffer: serialize buffer teardown with mode claims\n\nBuffer-mode claims hold mlock to guarantee that the device remains in\nbuffer mode until the claim is released. Normal buffer updates take\ninfo_exist_lock followed by mlock in iio_update_buffers().\n\nHowever, iio_device_unregister() disables and deactivates all buffers\nwithout taking mlock. This can invalidate buffer state, including\nactive_scan_mask, while a buffer-mode claim is held.\n\nTake mlock in iio_disable_all_buffers() so that unregister honors the\nmode-claim lifetime guarantee. The info_exist_lock -> mlock ordering\nmatches iio_update_buffers()."}], "affected": [{"product": "Linux", "vendor": "Linux", "defaultStatus": "unaffected", "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git", "programFiles": ["drivers/iio/industrialio-buffer.c"], "versions": [{"version": "0a8565425afd8ba0e1a0ea73e21da119ee6dacea", "lessThan": "6a728408ff522b749c2a3c7e68f44e861fa0dbfb", "status": "affected", "versionType": "git"}, {"version": "0a8565425afd8ba0e1a0ea73e21da119ee6dacea", "lessThan": "89f3852a28fcf7bab599280cb082baa0675536db", "status": "affected", "versionType": "git"}, {"version": "0a8565425afd8ba0e1a0ea73e21da119ee6dacea", "lessThan": "b466db9e68b4741af85f6c017e2bb0a2f025053f", "status": "affected", "versionType": "git"}, {"version": "0a8565425afd8ba0e1a0ea73e21da119ee6dacea", "lessThan": "e63188d77e10c0951bf67da6c295f768fd1abf4b", "status": "affected", "versionType": "git"}, {"version": "0a8565425afd8ba0e1a0ea73e21da119ee6dacea", "lessThan": "84bb0fc46ccf6a545b8fdf57cda83770186ed8dd", "status": "affected", "versionType": "git"}, {"version": "a9c471892d75847671a246619c2148578f22bbc6", "status": "affected", "versionType": "git"}, {"version": "7bca0af538a49dacb1470f233be0676bdc09605b", "status": "affected", "versionType": "git"}, {"version": "5.15.137", "lessThan": "5.16", "status": "affected", "versionType": "semver"}, {"version": "6.1.60", "lessThan": "6.2", "status": "affected", "versionType": "semver"}]}, {"product": "Linux", "vendor": "Linux", "defaultStatus": "affected", "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git", "programFiles": ["drivers/iio/industrialio-buffer.c"], "versions": [{"version": "6.2", "status": "affected"}, {"version": "0", "lessThan": "6.2", "status": "unaffected", "versionType": "semver"}, {"version": "6.6.160", "lessThanOrEqual": "6.6.*", "status": "unaffected", "versionType": "semver"}, {"version": "6.12.113", "lessThanOrEqual": "6.12.*", "status": "unaffected", "versionType": "semver"}, {"version": "6.18.56", "lessThanOrEqual": "6.18.*", "status": "unaffected", "versionType": "semver"}, {"version": "7.2.10", "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": "6.2", "versionEndExcluding": "6.6.160"}, {"vulnerable": true, "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "versionStartIncluding": "6.2", "versionEndExcluding": "6.12.113"}, {"vulnerable": true, "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "versionStartIncluding": "6.2", "versionEndExcluding": "6.18.56"}, {"vulnerable": true, "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "versionStartIncluding": "6.2", "versionEndExcluding": "7.2.10"}, {"vulnerable": true, "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "versionStartIncluding": "6.2", "versionEndExcluding": "7.3"}, {"vulnerable": true, "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "versionStartIncluding": "5.15.137"}, {"vulnerable": true, "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "versionStartIncluding": "6.1.60"}]}]}], "references": [{"url": "https://git.kernel.org/stable/c/6a728408ff522b749c2a3c7e68f44e861fa0dbfb"}, {"url": "https://git.kernel.org/stable/c/89f3852a28fcf7bab599280cb082baa0675536db"}, {"url": "https://git.kernel.org/stable/c/b466db9e68b4741af85f6c017e2bb0a2f025053f"}, {"url": "https://git.kernel.org/stable/c/e63188d77e10c0951bf67da6c295f768fd1abf4b"}, {"url": "https://git.kernel.org/stable/c/84bb0fc46ccf6a545b8fdf57cda83770186ed8dd"}], "title": "iio: buffer: serialize buffer teardown with mode claims", "x_generator": {"engine": "bippy-1.2.0"}}}}

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{"affected": [{"affectedData": [{"defaultStatus": "unaffected", "product": "Linux", "programFiles": ["drivers/iio/industrialio-buffer.c"], "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git", "vendor": "Linux", "versions": [{"lessThan": "6a728408ff522b749c2a3c7e68f44e861fa0dbfb", "status": "affected", "version": "0a8565425afd8ba0e1a0ea73e21da119ee6dacea", "versionType": "git"}, {"lessThan": "89f3852a28fcf7bab599280cb082baa0675536db", "status": "affected", "version": "0a8565425afd8ba0e1a0ea73e21da119ee6dacea", "versionType": "git"}, {"lessThan": "b466db9e68b4741af85f6c017e2bb0a2f025053f", "status": "affected", "version": "0a8565425afd8ba0e1a0ea73e21da119ee6dacea", "versionType": "git"}, {"lessThan": "e63188d77e10c0951bf67da6c295f768fd1abf4b", "status": "affected", "version": "0a8565425afd8ba0e1a0ea73e21da119ee6dacea", "versionType": "git"}, {"lessThan": "84bb0fc46ccf6a545b8fdf57cda83770186ed8dd", "status": "affected", "version": "0a8565425afd8ba0e1a0ea73e21da119ee6dacea", "versionType": "git"}, {"status": "affected", "version": "a9c471892d75847671a246619c2148578f22bbc6", "versionType": "git"}, {"status": "affected", "version": "7bca0af538a49dacb1470f233be0676bdc09605b", "versionType": "git"}, {"lessThan": "5.16", "status": "affected", "version": "5.15.137", "versionType": "semver"}, {"lessThan": "6.2", "status": "affected", "version": "6.1.60", "versionType": "semver"}]}, {"defaultStatus": "affected", "product": "Linux", "programFiles": ["drivers/iio/industrialio-buffer.c"], "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git", "vendor": "Linux", "versions": [{"status": "affected", "version": "6.2"}, {"lessThan": "6.2", "status": "unaffected", "version": "0", "versionType": "semver"}, {"lessThanOrEqual": "6.6.*", "status": "unaffected", "version": "6.6.160", "versionType": "semver"}, {"lessThanOrEqual": "6.12.*", "status": "unaffected", "version": "6.12.113", "versionType": "semver"}, {"lessThanOrEqual": "6.18.*", "status": "unaffected", "version": "6.18.56", "versionType": "semver"}, {"lessThanOrEqual": "7.2.*", "status": "unaffected", "version": "7.2.10", "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\niio: buffer: serialize buffer teardown with mode claims\n\nBuffer-mode claims hold mlock to guarantee that the device remains in\nbuffer mode until the claim is released. Normal buffer updates take\ninfo_exist_lock followed by mlock in iio_update_buffers().\n\nHowever, iio_device_unregister() disables and deactivates all buffers\nwithout taking mlock. This can invalidate buffer state, including\nactive_scan_mask, while a buffer-mode claim is held.\n\nTake mlock in iio_disable_all_buffers() so that unregister honors the\nmode-claim lifetime guarantee. The info_exist_lock -> mlock ordering\nmatches iio_update_buffers()."}], "id": "CVE-2026-98669", "lastModified": "2026-10-21T13:21:36.103", "metrics": {}, "published": "2026-10-18T16:17:20.190", "references": [{"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "url": "https://git.kernel.org/stable/c/6a728408ff522b749c2a3c7e68f44e861fa0dbfb"}, {"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "url": "https://git.kernel.org/stable/c/84bb0fc46ccf6a545b8fdf57cda83770186ed8dd"}, {"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "url": "https://git.kernel.org/stable/c/89f3852a28fcf7bab599280cb082baa0675536db"}, {"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "url": "https://git.kernel.org/stable/c/b466db9e68b4741af85f6c017e2bb0a2f025053f"}, {"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "url": "https://git.kernel.org/stable/c/e63188d77e10c0951bf67da6c295f768fd1abf4b"}], "sourceIdentifier": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "vulnStatus": "Received"}

{"bugzilla": {"description": "kernel: iio: buffer: serialize buffer teardown with mode claims", "id": "2555168", "url": "https://bugzilla.redhat.com/show_bug.cgi?id=2555168"}, "csaw": false, "cvss3": {"cvss3_base_score": "4.1", "cvss3_scoring_vector": "CVSS:3.1/AV:L/AC:H/PR:H/UI:N/S:U/C:N/I:N/A:H", "status": "draft"}, "cwe": "CWE-366", "details": ["In the Linux kernel, the following vulnerability has been resolved:\niio: buffer: serialize buffer teardown with mode claims\nBuffer-mode claims hold mlock to guarantee that the device remains in\nbuffer mode until the claim is released. Normal buffer updates take\ninfo_exist_lock followed by mlock in iio_update_buffers().\nHowever, iio_device_unregister() disables and deactivates all buffers\nwithout taking mlock. This can invalidate buffer state, including\nactive_scan_mask, while a buffer-mode claim is held.\nTake mlock in iio_disable_all_buffers() so that unregister honors the\nmode-claim lifetime guarantee. The info_exist_lock -> mlock ordering\nmatches iio_update_buffers().", "A flaw was found in the Linux kernel's Industrial I/O (IIO) subsystem. During device unregistration, the kernel disables and deactivates device buffers without acquiring the required lock to synchronize teardown with active buffer-mode claims. A local user could exploit this race condition to cause a Denial of Service (DoS) through a kernel crash caused by an invalid buffer state."], "name": "CVE-2026-98669", "package_state": [{"cpe": "cpe:/o:redhat:enterprise_linux:10", "fix_state": "Fix deferred", "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"}, {"cpe": "cpe:/a:redhat:openshift:4", "fix_state": "Not affected", "package_name": "openshift/ose-rhel-coreos-8", "product_name": "Red Hat OpenShift Container Platform 4"}, {"cpe": "cpe:/a:redhat:openshift:4", "fix_state": "Not affected", "package_name": "openshift/ose-rhel-coreos-9", "product_name": "Red Hat OpenShift Container Platform 4"}], "public_date": "2026-10-18T00:00:00Z", "references": ["https://www.cve.org/CVERecord?id=CVE-2026-98669\nhttps://nvd.nist.gov/vuln/detail/CVE-2026-98669\nhttps://git.kernel.org/pub/scm/linux/security/vulns.git/plain/cve/published/2026/CVE-2026-98669.mbox"], "threat_severity": "Moderate"}