CVE-2026-98227

{"dataType": "CVE_RECORD", "dataVersion": "5.2", "cveMetadata": {"cveId": "CVE-2026-98227", "assignerOrgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "state": "PUBLISHED", "assignerShortName": "Linux", "dateReserved": "2026-09-25T10:25:14.328Z", "datePublished": "2026-10-06T08:45:02.265Z", "dateUpdated": "2026-10-19T09:15:58.990Z"}, "containers": {"cna": {"providerMetadata": {"orgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "shortName": "Linux", "dateUpdated": "2026-10-19T09:15:58.990Z"}, "descriptions": [{"lang": "en", "value": "In the Linux kernel, the following vulnerability has been resolved:\n\nmemstick: ms_block: destroy io_queue workqueue on removal\n\nmsb_init_disk() creates the per-card ordered workqueue msb->io_queue with\nalloc_ordered_workqueue(). It is torn down with destroy_workqueue() only\non the init error path; msb_remove() never destroys it. msb_stop() merely\nflushes the queue, and neither msb_data_clear() nor put_disk() free it. As\na result every card insert/remove cycle leaks the workqueue and its\nkworker, exhausting kernel memory over repeated cycles.\n\nDestroy the workqueue in msb_remove() after the disk has been removed and\nthe queue drained."}], "affected": [{"product": "Linux", "vendor": "Linux", "defaultStatus": "unaffected", "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git", "programFiles": ["drivers/memstick/core/ms_block.c"], "versions": [{"version": "0ab30494bc4f3bc1ea4659b7c5d97c5218554a63", "lessThan": "0ff795163f37109a134b5a421558530f8d091544", "status": "affected", "versionType": "git"}, {"version": "0ab30494bc4f3bc1ea4659b7c5d97c5218554a63", "lessThan": "19c3da6621a253f1f8b937ed91bc22330a930d9c", "status": "affected", "versionType": "git"}, {"version": "0ab30494bc4f3bc1ea4659b7c5d97c5218554a63", "lessThan": "9a2e7cdc0880e735aff0968ee402f2c92a992b9b", "status": "affected", "versionType": "git"}, {"version": "0ab30494bc4f3bc1ea4659b7c5d97c5218554a63", "lessThan": "6611f78ec3fd4b33a00bfda20725b254a22979f6", "status": "affected", "versionType": "git"}, {"version": "0ab30494bc4f3bc1ea4659b7c5d97c5218554a63", "lessThan": "f222bb8c30cf5699c560b29179ff2bddcac1f950", "status": "affected", "versionType": "git"}, {"version": "0ab30494bc4f3bc1ea4659b7c5d97c5218554a63", "lessThan": "90af7fde083e1b22c349c3a8b1626728e44e474c", "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/memstick/core/ms_block.c"], "versions": [{"version": "3.12", "status": "affected"}, {"version": "0", "lessThan": "3.12", "status": "unaffected", "versionType": "semver"}, {"version": "6.1.189", "lessThanOrEqual": "6.1.*", "status": "unaffected", "versionType": "semver"}, {"version": "6.6.158", "lessThanOrEqual": "6.6.*", "status": "unaffected", "versionType": "semver"}, {"version": "6.12.112", "lessThanOrEqual": "6.12.*", "status": "unaffected", "versionType": "semver"}, {"version": "6.18.54", "lessThanOrEqual": "6.18.*", "status": "unaffected", "versionType": "semver"}, {"version": "7.2.8", "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": "3.12", "versionEndExcluding": "6.1.189"}, {"vulnerable": true, "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "versionStartIncluding": "3.12", "versionEndExcluding": "6.6.158"}, {"vulnerable": true, "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "versionStartIncluding": "3.12", "versionEndExcluding": "6.12.112"}, {"vulnerable": true, "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "versionStartIncluding": "3.12", "versionEndExcluding": "6.18.54"}, {"vulnerable": true, "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "versionStartIncluding": "3.12", "versionEndExcluding": "7.2.8"}, {"vulnerable": true, "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "versionStartIncluding": "3.12", "versionEndExcluding": "7.3"}]}]}], "references": [{"url": "https://git.kernel.org/stable/c/0ff795163f37109a134b5a421558530f8d091544"}, {"url": "https://git.kernel.org/stable/c/19c3da6621a253f1f8b937ed91bc22330a930d9c"}, {"url": "https://git.kernel.org/stable/c/9a2e7cdc0880e735aff0968ee402f2c92a992b9b"}, {"url": "https://git.kernel.org/stable/c/6611f78ec3fd4b33a00bfda20725b254a22979f6"}, {"url": "https://git.kernel.org/stable/c/f222bb8c30cf5699c560b29179ff2bddcac1f950"}, {"url": "https://git.kernel.org/stable/c/90af7fde083e1b22c349c3a8b1626728e44e474c"}], "title": "memstick: ms_block: destroy io_queue workqueue on removal", "x_generator": {"engine": "bippy-1.2.0"}}}}

{}

{"affected": [{"affectedData": [{"defaultStatus": "unaffected", "product": "Linux", "programFiles": ["drivers/memstick/core/ms_block.c"], "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git", "vendor": "Linux", "versions": [{"lessThan": "0ff795163f37109a134b5a421558530f8d091544", "status": "affected", "version": "0ab30494bc4f3bc1ea4659b7c5d97c5218554a63", "versionType": "git"}, {"lessThan": "19c3da6621a253f1f8b937ed91bc22330a930d9c", "status": "affected", "version": "0ab30494bc4f3bc1ea4659b7c5d97c5218554a63", "versionType": "git"}, {"lessThan": "9a2e7cdc0880e735aff0968ee402f2c92a992b9b", "status": "affected", "version": "0ab30494bc4f3bc1ea4659b7c5d97c5218554a63", "versionType": "git"}, {"lessThan": "6611f78ec3fd4b33a00bfda20725b254a22979f6", "status": "affected", "version": "0ab30494bc4f3bc1ea4659b7c5d97c5218554a63", "versionType": "git"}, {"lessThan": "f222bb8c30cf5699c560b29179ff2bddcac1f950", "status": "affected", "version": "0ab30494bc4f3bc1ea4659b7c5d97c5218554a63", "versionType": "git"}, {"lessThan": "90af7fde083e1b22c349c3a8b1626728e44e474c", "status": "affected", "version": "0ab30494bc4f3bc1ea4659b7c5d97c5218554a63", "versionType": "git"}]}, {"defaultStatus": "affected", "product": "Linux", "programFiles": ["drivers/memstick/core/ms_block.c"], "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git", "vendor": "Linux", "versions": [{"status": "affected", "version": "3.12"}, {"lessThan": "3.12", "status": "unaffected", "version": "0", "versionType": "semver"}, {"lessThanOrEqual": "6.1.*", "status": "unaffected", "version": "6.1.189", "versionType": "semver"}, {"lessThanOrEqual": "6.6.*", "status": "unaffected", "version": "6.6.158", "versionType": "semver"}, {"lessThanOrEqual": "6.12.*", "status": "unaffected", "version": "6.12.112", "versionType": "semver"}, {"lessThanOrEqual": "6.18.*", "status": "unaffected", "version": "6.18.54", "versionType": "semver"}, {"lessThanOrEqual": "7.2.*", "status": "unaffected", "version": "7.2.8", "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\nmemstick: ms_block: destroy io_queue workqueue on removal\n\nmsb_init_disk() creates the per-card ordered workqueue msb->io_queue with\nalloc_ordered_workqueue(). It is torn down with destroy_workqueue() only\non the init error path; msb_remove() never destroys it. msb_stop() merely\nflushes the queue, and neither msb_data_clear() nor put_disk() free it. As\na result every card insert/remove cycle leaks the workqueue and its\nkworker, exhausting kernel memory over repeated cycles.\n\nDestroy the workqueue in msb_remove() after the disk has been removed and\nthe queue drained."}], "id": "CVE-2026-98227", "lastModified": "2026-10-19T10:18:23.430", "metrics": {}, "published": "2026-10-06T09:18:09.963", "references": [{"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "url": "https://git.kernel.org/stable/c/0ff795163f37109a134b5a421558530f8d091544"}, {"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "url": "https://git.kernel.org/stable/c/19c3da6621a253f1f8b937ed91bc22330a930d9c"}, {"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "url": "https://git.kernel.org/stable/c/6611f78ec3fd4b33a00bfda20725b254a22979f6"}, {"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "url": "https://git.kernel.org/stable/c/90af7fde083e1b22c349c3a8b1626728e44e474c"}, {"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "url": "https://git.kernel.org/stable/c/9a2e7cdc0880e735aff0968ee402f2c92a992b9b"}, {"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "url": "https://git.kernel.org/stable/c/f222bb8c30cf5699c560b29179ff2bddcac1f950"}], "sourceIdentifier": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "vulnStatus": "Received"}

{"bugzilla": {"description": "kernel: memstick: ms_block: destroy io_queue workqueue on removal", "id": "2546524", "url": "https://bugzilla.redhat.com/show_bug.cgi?id=2546524"}, "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": ["In the Linux kernel, the following vulnerability has been resolved:\nmemstick: ms_block: destroy io_queue workqueue on removal\nmsb_init_disk() creates the per-card ordered workqueue msb->io_queue with\nalloc_ordered_workqueue(). It is torn down with destroy_workqueue() only\non the init error path; msb_remove() never destroys it. msb_stop() merely\nflushes the queue, and neither msb_data_clear() nor put_disk() free it. As\na result every card insert/remove cycle leaks the workqueue and its\nkworker, exhausting kernel memory over repeated cycles.\nDestroy the workqueue in msb_remove() after the disk has been removed and\nthe queue drained.", "A flaw was found in the Linux kernel's MemoryStick block driver. The driver fails to release its internal input/output work queue when a card is removed from the system. A local attacker with physical access could exploit this flaw by repeatedly inserting and removing storage cards, gradually exhausting kernel memory and causing a Denial of Service (DoS)."], "name": "CVE-2026-98227", "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"}, {"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": "2026-10-06T00:00:00Z", "references": ["https://www.cve.org/CVERecord?id=CVE-2026-98227\nhttps://nvd.nist.gov/vuln/detail/CVE-2026-98227\nhttps://git.kernel.org/pub/scm/linux/security/vulns.git/plain/cve/published/2026/CVE-2026-98227.mbox"], "threat_severity": "Moderate"}

{"affected": [{"configurations": [{"platform": null, "status": "affected", "versions": {"scheme": "code_commit", "value": "[0ab30494bc4f3bc1ea4659b7c5d97c5218554a63,0ff795163f37109a134b5a421558530f8d091544)"}}, {"platform": null, "status": "affected", "versions": {"scheme": "code_commit", "value": "[0ab30494bc4f3bc1ea4659b7c5d97c5218554a63,19c3da6621a253f1f8b937ed91bc22330a930d9c)"}}, {"platform": null, "status": "affected", "versions": {"scheme": "code_commit", "value": "[0ab30494bc4f3bc1ea4659b7c5d97c5218554a63,9a2e7cdc0880e735aff0968ee402f2c92a992b9b)"}}, {"platform": null, "status": "affected", "versions": {"scheme": "code_commit", "value": "[0ab30494bc4f3bc1ea4659b7c5d97c5218554a63,6611f78ec3fd4b33a00bfda20725b254a22979f6)"}}, {"platform": null, "status": "affected", "versions": {"scheme": "code_commit", "value": "[0ab30494bc4f3bc1ea4659b7c5d97c5218554a63,f222bb8c30cf5699c560b29179ff2bddcac1f950)"}}, {"platform": null, "status": "affected", "versions": {"scheme": "code_commit", "value": "[0ab30494bc4f3bc1ea4659b7c5d97c5218554a63,90af7fde083e1b22c349c3a8b1626728e44e474c)"}}], "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": "3.12"}}, {"platform": null, "status": "unaffected", "versions": {"scheme": "semver", "value": "[0,3.12)"}}, {"platform": null, "status": "unaffected", "versions": {"scheme": "semver", "value": "[6.1.189,6.2.0)"}}, {"platform": null, "status": "unaffected", "versions": {"scheme": "semver", "value": "[6.6.158,6.7.0)"}}, {"platform": null, "status": "unaffected", "versions": {"scheme": "semver", "value": "[6.12.112,6.13.0)"}}, {"platform": null, "status": "unaffected", "versions": {"scheme": "semver", "value": "[6.18.54,6.19.0)"}}, {"platform": null, "status": "unaffected", "versions": {"scheme": "semver", "value": "[7.2.8,7.3.0)"}}, {"platform": null, "status": "unaffected", "versions": {"scheme": "semver", "value": "[7.3-rc4,*]"}}], "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": "2026-10-06T12:15:15.078985+00:00", "updated": "2026-10-09T17:45:11.283367+00:00", "vendors": ["linux", "linux$PRODUCT$linux_kernel"]}