CVE-2026-98211

{"dataType": "CVE_RECORD", "dataVersion": "5.2", "cveMetadata": {"cveId": "CVE-2026-98211", "assignerOrgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "state": "PUBLISHED", "assignerShortName": "Linux", "dateReserved": "2026-09-25T10:25:14.325Z", "datePublished": "2026-10-06T08:44:47.637Z", "dateUpdated": "2026-10-19T09:15:42.136Z"}, "containers": {"cna": {"providerMetadata": {"orgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "shortName": "Linux", "dateUpdated": "2026-10-19T09:15:42.136Z"}, "descriptions": [{"lang": "en", "value": "In the Linux kernel, the following vulnerability has been resolved:\n\nmmc: mmci: Fix use-after-free in busy-timeout work\n\nux500_busy_complete() can queue ux500_busy_timeout_work for an R1b\ncommand, but mmci_remove() never cancels it. The work can subsequently\ndereference the devm-allocated mmci_host after it has been released.\n\nMask the controller interrupts and disable the delayed work during\nremoval. This drains any queued instance and stops an IRQ handler that\nis still in progress from queueing the work again once it has been\ndisabled.\n\nThis issue was found by an in-house static analysis tool."}], "affected": [{"product": "Linux", "vendor": "Linux", "defaultStatus": "unaffected", "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git", "programFiles": ["drivers/mmc/host/mmci.c"], "versions": [{"version": "b1a665932dc23cad0b8af2745cd9713f9e930d63", "lessThan": "af6fbf72e899932f330c4e5d0b84d985c922c633", "status": "affected", "versionType": "git"}, {"version": "b1a665932dc23cad0b8af2745cd9713f9e930d63", "lessThan": "7fecf79f31568de161be14911db10d1251617b01", "status": "affected", "versionType": "git"}, {"version": "b1a665932dc23cad0b8af2745cd9713f9e930d63", "lessThan": "432b98c1f5daecf04a33c8e1688d26e7ac221e23", "status": "affected", "versionType": "git"}, {"version": "b1a665932dc23cad0b8af2745cd9713f9e930d63", "lessThan": "2b19cf3e50cddaff07b657dae1a8f30f06032852", "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/mmc/host/mmci.c"], "versions": [{"version": "6.5", "status": "affected"}, {"version": "0", "lessThan": "6.5", "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": "6.5", "versionEndExcluding": "6.12.112"}, {"vulnerable": true, "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "versionStartIncluding": "6.5", "versionEndExcluding": "6.18.54"}, {"vulnerable": true, "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "versionStartIncluding": "6.5", "versionEndExcluding": "7.2.8"}, {"vulnerable": true, "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "versionStartIncluding": "6.5", "versionEndExcluding": "7.3"}]}]}], "references": [{"url": "https://git.kernel.org/stable/c/af6fbf72e899932f330c4e5d0b84d985c922c633"}, {"url": "https://git.kernel.org/stable/c/7fecf79f31568de161be14911db10d1251617b01"}, {"url": "https://git.kernel.org/stable/c/432b98c1f5daecf04a33c8e1688d26e7ac221e23"}, {"url": "https://git.kernel.org/stable/c/2b19cf3e50cddaff07b657dae1a8f30f06032852"}], "title": "mmc: mmci: Fix use-after-free in busy-timeout work", "x_generator": {"engine": "bippy-1.2.0"}}}}

{}

{"affected": [{"affectedData": [{"defaultStatus": "unaffected", "product": "Linux", "programFiles": ["drivers/mmc/host/mmci.c"], "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git", "vendor": "Linux", "versions": [{"lessThan": "af6fbf72e899932f330c4e5d0b84d985c922c633", "status": "affected", "version": "b1a665932dc23cad0b8af2745cd9713f9e930d63", "versionType": "git"}, {"lessThan": "7fecf79f31568de161be14911db10d1251617b01", "status": "affected", "version": "b1a665932dc23cad0b8af2745cd9713f9e930d63", "versionType": "git"}, {"lessThan": "432b98c1f5daecf04a33c8e1688d26e7ac221e23", "status": "affected", "version": "b1a665932dc23cad0b8af2745cd9713f9e930d63", "versionType": "git"}, {"lessThan": "2b19cf3e50cddaff07b657dae1a8f30f06032852", "status": "affected", "version": "b1a665932dc23cad0b8af2745cd9713f9e930d63", "versionType": "git"}]}, {"defaultStatus": "affected", "product": "Linux", "programFiles": ["drivers/mmc/host/mmci.c"], "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git", "vendor": "Linux", "versions": [{"status": "affected", "version": "6.5"}, {"lessThan": "6.5", "status": "unaffected", "version": "0", "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\nmmc: mmci: Fix use-after-free in busy-timeout work\n\nux500_busy_complete() can queue ux500_busy_timeout_work for an R1b\ncommand, but mmci_remove() never cancels it. The work can subsequently\ndereference the devm-allocated mmci_host after it has been released.\n\nMask the controller interrupts and disable the delayed work during\nremoval. This drains any queued instance and stops an IRQ handler that\nis still in progress from queueing the work again once it has been\ndisabled.\n\nThis issue was found by an in-house static analysis tool."}], "id": "CVE-2026-98211", "lastModified": "2026-10-19T10:18:21.827", "metrics": {}, "published": "2026-10-06T09:18:07.497", "references": [{"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "url": "https://git.kernel.org/stable/c/2b19cf3e50cddaff07b657dae1a8f30f06032852"}, {"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "url": "https://git.kernel.org/stable/c/432b98c1f5daecf04a33c8e1688d26e7ac221e23"}, {"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "url": "https://git.kernel.org/stable/c/7fecf79f31568de161be14911db10d1251617b01"}, {"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "url": "https://git.kernel.org/stable/c/af6fbf72e899932f330c4e5d0b84d985c922c633"}], "sourceIdentifier": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "vulnStatus": "Received"}

{"bugzilla": {"description": "kernel: mmc: mmci: Fix use-after-free in busy-timeout work", "id": "2546357", "url": "https://bugzilla.redhat.com/show_bug.cgi?id=2546357"}, "csaw": false, "cvss3": {"cvss3_base_score": "7.0", "cvss3_scoring_vector": "CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:H", "status": "draft"}, "cwe": "CWE-825", "details": ["In the Linux kernel, the following vulnerability has been resolved:\nmmc: mmci: Fix use-after-free in busy-timeout work\nux500_busy_complete() can queue ux500_busy_timeout_work for an R1b\ncommand, but mmci_remove() never cancels it. The work can subsequently\ndereference the devm-allocated mmci_host after it has been released.\nMask the controller interrupts and disable the delayed work during\nremoval. This drains any queued instance and stops an IRQ handler that\nis still in progress from queueing the work again once it has been\ndisabled.\nThis issue was found by an in-house static analysis tool.", "A flaw was found in the Linux kernel's MultiMediaCard (MMC) host controller interface driver. When the device is removed, the driver fails to cancel pending delayed timeout tasks, allowing scheduled work to access memory that has already been released. A local user capable of triggering device removal could exploit this use-after-free vulnerability to cause a system crash, resulting in a Denial of Service (DoS), or potentially achieve arbitrary code execution."], "name": "CVE-2026-98211", "package_state": [{"cpe": "cpe:/o:redhat:enterprise_linux:10", "fix_state": "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": "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": "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-2026-98211\nhttps://nvd.nist.gov/vuln/detail/CVE-2026-98211\nhttps://git.kernel.org/pub/scm/linux/security/vulns.git/plain/cve/published/2026/CVE-2026-98211.mbox"], "threat_severity": "Moderate"}

{"affected": [{"configurations": [{"platform": null, "status": "affected", "versions": {"scheme": "code_commit", "value": "[b1a665932dc23cad0b8af2745cd9713f9e930d63,af6fbf72e899932f330c4e5d0b84d985c922c633)"}}, {"platform": null, "status": "affected", "versions": {"scheme": "code_commit", "value": "[b1a665932dc23cad0b8af2745cd9713f9e930d63,7fecf79f31568de161be14911db10d1251617b01)"}}, {"platform": null, "status": "affected", "versions": {"scheme": "code_commit", "value": "[b1a665932dc23cad0b8af2745cd9713f9e930d63,432b98c1f5daecf04a33c8e1688d26e7ac221e23)"}}, {"platform": null, "status": "affected", "versions": {"scheme": "code_commit", "value": "[b1a665932dc23cad0b8af2745cd9713f9e930d63,2b19cf3e50cddaff07b657dae1a8f30f06032852)"}}], "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": "6.5"}}, {"platform": null, "status": "unaffected", "versions": {"scheme": "generic", "value": "[0,6.5)"}}, {"platform": null, "status": "unaffected", "versions": {"scheme": "generic", "value": "[6.12.112,6.12.*]"}}, {"platform": null, "status": "unaffected", "versions": {"scheme": "generic", "value": "[6.18.54,6.18.*]"}}, {"platform": null, "status": "unaffected", "versions": {"scheme": "generic", "value": "[7.2.8,7.2.*]"}}, {"platform": null, "status": "unaffected", "versions": {"scheme": "generic", "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": "2026-10-06T15:00:17.480009+00:00", "updated": "2026-10-09T16:15:08.033684+00:00", "vendors": ["linux", "linux$PRODUCT$linux_kernel"]}