CVE-2026-98212

{"dataType": "CVE_RECORD", "dataVersion": "5.2", "cveMetadata": {"cveId": "CVE-2026-98212", "assignerOrgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "state": "PUBLISHED", "assignerShortName": "Linux", "dateReserved": "2026-09-25T10:25:14.325Z", "datePublished": "2026-10-06T08:44:48.498Z", "dateUpdated": "2026-10-19T09:15:43.105Z"}, "containers": {"cna": {"providerMetadata": {"orgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "shortName": "Linux", "dateUpdated": "2026-10-19T09:15:43.105Z"}, "descriptions": [{"lang": "en", "value": "In the Linux kernel, the following vulnerability has been resolved:\n\nmmc: hsq: Fix use-after-free in retry work\n\nmmc_hsq_pump_requests() queues retry_work when request_atomic() returns\n-EBUSY; today sdhci-sprd is the only consumer that implements\nrequest_atomic(). The work is embedded in a devm-allocated mmc_hsq, but\nis never cancelled during driver removal. Work still pending at unbind\ncan therefore run after the devm allocation has been released and\ndereference hsq->mmc and hsq->mrq.\n\nUse devm_work_autocancel() to cancel and drain retry_work before the devm\nallocation is released. By the time devres cleanup begins,\nmmc_remove_host() has already stopped the host, so no new requests can\narm the work.\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/mmc_hsq.c"], "versions": [{"version": "6db96e5810e0a6a345b7d78549de7676ae5b2662", "lessThan": "c50d6515bffb148c2c12be6d587ec201dfab4c34", "status": "affected", "versionType": "git"}, {"version": "6db96e5810e0a6a345b7d78549de7676ae5b2662", "lessThan": "df2eb59fd9eb33663dc1053f5a4ed851e0aa1f67", "status": "affected", "versionType": "git"}, {"version": "6db96e5810e0a6a345b7d78549de7676ae5b2662", "lessThan": "8439bf262ce3267bcfee29d3c61605f1731a2271", "status": "affected", "versionType": "git"}, {"version": "6db96e5810e0a6a345b7d78549de7676ae5b2662", "lessThan": "45341b341642c377192c95e4d48e0a859cf85f42", "status": "affected", "versionType": "git"}, {"version": "6db96e5810e0a6a345b7d78549de7676ae5b2662", "lessThan": "5d132990475f02cfa1debe03d50b479432864ebd", "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/mmc_hsq.c"], "versions": [{"version": "5.8", "status": "affected"}, {"version": "0", "lessThan": "5.8", "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": "5.8", "versionEndExcluding": "6.6.158"}, {"vulnerable": true, "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "versionStartIncluding": "5.8", "versionEndExcluding": "6.12.112"}, {"vulnerable": true, "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "versionStartIncluding": "5.8", "versionEndExcluding": "6.18.54"}, {"vulnerable": true, "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "versionStartIncluding": "5.8", "versionEndExcluding": "7.2.8"}, {"vulnerable": true, "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "versionStartIncluding": "5.8", "versionEndExcluding": "7.3"}]}]}], "references": [{"url": "https://git.kernel.org/stable/c/c50d6515bffb148c2c12be6d587ec201dfab4c34"}, {"url": "https://git.kernel.org/stable/c/df2eb59fd9eb33663dc1053f5a4ed851e0aa1f67"}, {"url": "https://git.kernel.org/stable/c/8439bf262ce3267bcfee29d3c61605f1731a2271"}, {"url": "https://git.kernel.org/stable/c/45341b341642c377192c95e4d48e0a859cf85f42"}, {"url": "https://git.kernel.org/stable/c/5d132990475f02cfa1debe03d50b479432864ebd"}], "title": "mmc: hsq: Fix use-after-free in retry work", "x_generator": {"engine": "bippy-1.2.0"}}}}

{}

{"affected": [{"affectedData": [{"defaultStatus": "unaffected", "product": "Linux", "programFiles": ["drivers/mmc/host/mmc_hsq.c"], "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git", "vendor": "Linux", "versions": [{"lessThan": "c50d6515bffb148c2c12be6d587ec201dfab4c34", "status": "affected", "version": "6db96e5810e0a6a345b7d78549de7676ae5b2662", "versionType": "git"}, {"lessThan": "df2eb59fd9eb33663dc1053f5a4ed851e0aa1f67", "status": "affected", "version": "6db96e5810e0a6a345b7d78549de7676ae5b2662", "versionType": "git"}, {"lessThan": "8439bf262ce3267bcfee29d3c61605f1731a2271", "status": "affected", "version": "6db96e5810e0a6a345b7d78549de7676ae5b2662", "versionType": "git"}, {"lessThan": "45341b341642c377192c95e4d48e0a859cf85f42", "status": "affected", "version": "6db96e5810e0a6a345b7d78549de7676ae5b2662", "versionType": "git"}, {"lessThan": "5d132990475f02cfa1debe03d50b479432864ebd", "status": "affected", "version": "6db96e5810e0a6a345b7d78549de7676ae5b2662", "versionType": "git"}]}, {"defaultStatus": "affected", "product": "Linux", "programFiles": ["drivers/mmc/host/mmc_hsq.c"], "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git", "vendor": "Linux", "versions": [{"status": "affected", "version": "5.8"}, {"lessThan": "5.8", "status": "unaffected", "version": "0", "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\nmmc: hsq: Fix use-after-free in retry work\n\nmmc_hsq_pump_requests() queues retry_work when request_atomic() returns\n-EBUSY; today sdhci-sprd is the only consumer that implements\nrequest_atomic(). The work is embedded in a devm-allocated mmc_hsq, but\nis never cancelled during driver removal. Work still pending at unbind\ncan therefore run after the devm allocation has been released and\ndereference hsq->mmc and hsq->mrq.\n\nUse devm_work_autocancel() to cancel and drain retry_work before the devm\nallocation is released. By the time devres cleanup begins,\nmmc_remove_host() has already stopped the host, so no new requests can\narm the work.\n\nThis issue was found by an in-house static analysis tool."}], "id": "CVE-2026-98212", "lastModified": "2026-10-19T10:18:21.920", "metrics": {}, "published": "2026-10-06T09:18:07.627", "references": [{"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "url": "https://git.kernel.org/stable/c/45341b341642c377192c95e4d48e0a859cf85f42"}, {"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "url": "https://git.kernel.org/stable/c/5d132990475f02cfa1debe03d50b479432864ebd"}, {"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "url": "https://git.kernel.org/stable/c/8439bf262ce3267bcfee29d3c61605f1731a2271"}, {"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "url": "https://git.kernel.org/stable/c/c50d6515bffb148c2c12be6d587ec201dfab4c34"}, {"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "url": "https://git.kernel.org/stable/c/df2eb59fd9eb33663dc1053f5a4ed851e0aa1f67"}], "sourceIdentifier": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "vulnStatus": "Received"}

{"bugzilla": {"description": "kernel: mmc: hsq: Fix use-after-free in retry work", "id": "2546430", "url": "https://bugzilla.redhat.com/show_bug.cgi?id=2546430"}, "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-825", "details": ["A flaw was found in the Linux kernel's MultiMediaCard (MMC) host software queue. A local user could exploit a use-after-free vulnerability when pending retry operations are not cancelled before device removal, allowing tasks to access memory after it has been released. This issue can lead to a Denial of Service (DoS) through a system crash or potential privilege escalation."], "name": "CVE-2026-98212", "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-2026-98212\nhttps://nvd.nist.gov/vuln/detail/CVE-2026-98212\nhttps://git.kernel.org/pub/scm/linux/security/vulns.git/plain/cve/published/2026/CVE-2026-98212.mbox"], "threat_severity": "Moderate"}

{"affected": [{"configurations": [{"platform": null, "status": "affected", "versions": {"scheme": "code_commit", "value": "[6db96e5810e0a6a345b7d78549de7676ae5b2662,c50d6515bffb148c2c12be6d587ec201dfab4c34)"}}, {"platform": null, "status": "affected", "versions": {"scheme": "code_commit", "value": "[6db96e5810e0a6a345b7d78549de7676ae5b2662,df2eb59fd9eb33663dc1053f5a4ed851e0aa1f67)"}}, {"platform": null, "status": "affected", "versions": {"scheme": "code_commit", "value": "[6db96e5810e0a6a345b7d78549de7676ae5b2662,8439bf262ce3267bcfee29d3c61605f1731a2271)"}}, {"platform": null, "status": "affected", "versions": {"scheme": "code_commit", "value": "[6db96e5810e0a6a345b7d78549de7676ae5b2662,45341b341642c377192c95e4d48e0a859cf85f42)"}}, {"platform": null, "status": "affected", "versions": {"scheme": "code_commit", "value": "[6db96e5810e0a6a345b7d78549de7676ae5b2662,5d132990475f02cfa1debe03d50b479432864ebd)"}}], "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": "semver", "value": "5.8"}}, {"platform": null, "status": "unaffected", "versions": {"scheme": "generic", "value": "[0,5.8)"}}, {"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": "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": "2026-10-06T12:15:15.079862+00:00", "updated": "2026-10-09T15:45:07.580872+00:00", "vendors": ["linux", "linux$PRODUCT$linux_kernel"]}