CVE-2026-98833

{"dataType": "CVE_RECORD", "dataVersion": "5.2", "cveMetadata": {"cveId": "CVE-2026-98833", "assignerOrgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "state": "PUBLISHED", "assignerShortName": "Linux", "dateReserved": "2026-09-25T10:25:14.372Z", "datePublished": "2026-10-18T15:49:42.181Z", "dateUpdated": "2026-10-30T12:40:04.468Z"}, "containers": {"cna": {"providerMetadata": {"orgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "shortName": "Linux", "dateUpdated": "2026-10-30T12:40:04.468Z"}, "descriptions": [{"lang": "en", "value": "In the Linux kernel, the following vulnerability has been resolved:\n\nmtd: core: call _get_device() with the master MTD\n\n__get_mtd_device() calls the master's _get_device() callback with mtd,\nwhich may be a partition. __put_mtd_device() passes the master.\n\nThis breaks gluebi partitions because gluebi_get_device() uses\ncontainer_of() and therefore requires the master MTD. Pass the master\nto _get_device(), matching _put_device()."}], "affected": [{"product": "Linux", "vendor": "Linux", "defaultStatus": "unaffected", "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git", "programFiles": ["drivers/mtd/mtdcore.c"], "versions": [{"version": "46b5889cc2c54bac7d7e727a44d28a298df23cef", "lessThan": "522e821e41654eb06d2f21ac78a0f22fb6b198c2", "status": "affected", "versionType": "git"}, {"version": "46b5889cc2c54bac7d7e727a44d28a298df23cef", "lessThan": "e7e37358408b0690c367cf38aec81a9b7e2475b5", "status": "affected", "versionType": "git"}, {"version": "46b5889cc2c54bac7d7e727a44d28a298df23cef", "lessThan": "d94731cafa57e2c986ff391122d1494e5a3f3c3f", "status": "affected", "versionType": "git"}, {"version": "46b5889cc2c54bac7d7e727a44d28a298df23cef", "lessThan": "95c8f36293c22d450c371167ad4f9a5bbadc7539", "status": "affected", "versionType": "git"}, {"version": "46b5889cc2c54bac7d7e727a44d28a298df23cef", "lessThan": "f971f1c63cf71579258360a12bd185bc1cd1a043", "status": "affected", "versionType": "git"}, {"version": "46b5889cc2c54bac7d7e727a44d28a298df23cef", "lessThan": "dc482a281a19a7d7e91ad1b2d551bb301c54d0e6", "status": "affected", "versionType": "git"}, {"version": "46b5889cc2c54bac7d7e727a44d28a298df23cef", "lessThan": "12b31d1acd20b3185bb5f0748db0cf6874c8e9d1", "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/mtd/mtdcore.c"], "versions": [{"version": "5.7", "status": "affected"}, {"version": "0", "lessThan": "5.7", "status": "unaffected", "versionType": "semver"}, {"version": "5.15.224", "lessThanOrEqual": "5.15.*", "status": "unaffected", "versionType": "semver"}, {"version": "6.1.191", "lessThanOrEqual": "6.1.*", "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": "5.7", "versionEndExcluding": "5.15.224"}, {"vulnerable": true, "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "versionStartIncluding": "5.7", "versionEndExcluding": "6.1.191"}, {"vulnerable": true, "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "versionStartIncluding": "5.7", "versionEndExcluding": "6.6.160"}, {"vulnerable": true, "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "versionStartIncluding": "5.7", "versionEndExcluding": "6.12.113"}, {"vulnerable": true, "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "versionStartIncluding": "5.7", "versionEndExcluding": "6.18.56"}, {"vulnerable": true, "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "versionStartIncluding": "5.7", "versionEndExcluding": "7.2.10"}, {"vulnerable": true, "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "versionStartIncluding": "5.7", "versionEndExcluding": "7.3"}]}]}], "references": [{"url": "https://git.kernel.org/stable/c/522e821e41654eb06d2f21ac78a0f22fb6b198c2"}, {"url": "https://git.kernel.org/stable/c/e7e37358408b0690c367cf38aec81a9b7e2475b5"}, {"url": "https://git.kernel.org/stable/c/d94731cafa57e2c986ff391122d1494e5a3f3c3f"}, {"url": "https://git.kernel.org/stable/c/95c8f36293c22d450c371167ad4f9a5bbadc7539"}, {"url": "https://git.kernel.org/stable/c/f971f1c63cf71579258360a12bd185bc1cd1a043"}, {"url": "https://git.kernel.org/stable/c/dc482a281a19a7d7e91ad1b2d551bb301c54d0e6"}, {"url": "https://git.kernel.org/stable/c/12b31d1acd20b3185bb5f0748db0cf6874c8e9d1"}], "title": "mtd: core: call _get_device() with the master MTD", "x_generator": {"engine": "bippy-1.2.0"}}}}

{}

{"affected": [{"affectedData": [{"defaultStatus": "unaffected", "product": "Linux", "programFiles": ["drivers/mtd/mtdcore.c"], "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git", "vendor": "Linux", "versions": [{"lessThan": "522e821e41654eb06d2f21ac78a0f22fb6b198c2", "status": "affected", "version": "46b5889cc2c54bac7d7e727a44d28a298df23cef", "versionType": "git"}, {"lessThan": "e7e37358408b0690c367cf38aec81a9b7e2475b5", "status": "affected", "version": "46b5889cc2c54bac7d7e727a44d28a298df23cef", "versionType": "git"}, {"lessThan": "d94731cafa57e2c986ff391122d1494e5a3f3c3f", "status": "affected", "version": "46b5889cc2c54bac7d7e727a44d28a298df23cef", "versionType": "git"}, {"lessThan": "95c8f36293c22d450c371167ad4f9a5bbadc7539", "status": "affected", "version": "46b5889cc2c54bac7d7e727a44d28a298df23cef", "versionType": "git"}, {"lessThan": "f971f1c63cf71579258360a12bd185bc1cd1a043", "status": "affected", "version": "46b5889cc2c54bac7d7e727a44d28a298df23cef", "versionType": "git"}, {"lessThan": "dc482a281a19a7d7e91ad1b2d551bb301c54d0e6", "status": "affected", "version": "46b5889cc2c54bac7d7e727a44d28a298df23cef", "versionType": "git"}, {"lessThan": "12b31d1acd20b3185bb5f0748db0cf6874c8e9d1", "status": "affected", "version": "46b5889cc2c54bac7d7e727a44d28a298df23cef", "versionType": "git"}]}, {"defaultStatus": "affected", "product": "Linux", "programFiles": ["drivers/mtd/mtdcore.c"], "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git", "vendor": "Linux", "versions": [{"status": "affected", "version": "5.7"}, {"lessThan": "5.7", "status": "unaffected", "version": "0", "versionType": "semver"}, {"lessThanOrEqual": "5.15.*", "status": "unaffected", "version": "5.15.224", "versionType": "semver"}, {"lessThanOrEqual": "6.1.*", "status": "unaffected", "version": "6.1.191", "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\nmtd: core: call _get_device() with the master MTD\n\n__get_mtd_device() calls the master's _get_device() callback with mtd,\nwhich may be a partition. __put_mtd_device() passes the master.\n\nThis breaks gluebi partitions because gluebi_get_device() uses\ncontainer_of() and therefore requires the master MTD. Pass the master\nto _get_device(), matching _put_device()."}], "id": "CVE-2026-98833", "lastModified": "2026-10-30T13:21:29.660", "metrics": {}, "published": "2026-10-18T16:17:37.537", "references": [{"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "url": "https://git.kernel.org/stable/c/12b31d1acd20b3185bb5f0748db0cf6874c8e9d1"}, {"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "url": "https://git.kernel.org/stable/c/522e821e41654eb06d2f21ac78a0f22fb6b198c2"}, {"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "url": "https://git.kernel.org/stable/c/95c8f36293c22d450c371167ad4f9a5bbadc7539"}, {"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "url": "https://git.kernel.org/stable/c/d94731cafa57e2c986ff391122d1494e5a3f3c3f"}, {"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "url": "https://git.kernel.org/stable/c/dc482a281a19a7d7e91ad1b2d551bb301c54d0e6"}, {"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "url": "https://git.kernel.org/stable/c/e7e37358408b0690c367cf38aec81a9b7e2475b5"}, {"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "url": "https://git.kernel.org/stable/c/f971f1c63cf71579258360a12bd185bc1cd1a043"}], "sourceIdentifier": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "vulnStatus": "Received"}

{"bugzilla": {"description": "kernel: mtd: core: call _get_device() with the master MTD", "id": "2555250", "url": "https://bugzilla.redhat.com/show_bug.cgi?id=2555250"}, "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-843", "details": ["A flaw was found in the Linux kernel's Memory Technology Device (MTD) subsystem. When accessing certain partitions, the kernel improperly passes a partition device reference instead of the master device structure to the driver callback. A local user could exploit this flaw during device access operations to cause invalid memory references, resulting in a system crash and Denial of Service (DoS)."], "name": "CVE-2026-98833", "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": "Out of support scope", "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": "Fix deferred", "package_name": "kernel", "product_name": "Red Hat Enterprise Linux 9"}, {"cpe": "cpe:/o:redhat:enterprise_linux:9", "fix_state": "Fix deferred", "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": "Fix deferred", "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-2026-98833\nhttps://nvd.nist.gov/vuln/detail/CVE-2026-98833\nhttps://git.kernel.org/pub/scm/linux/security/vulns.git/plain/cve/published/2026/CVE-2026-98833.mbox"], "threat_severity": "Moderate"}

{"affected": [{"configurations": [{"platform": null, "status": "affected", "versions": {"scheme": "code_commit", "value": "[46b5889cc2c54bac7d7e727a44d28a298df23cef,95c8f36293c22d450c371167ad4f9a5bbadc7539)"}}, {"platform": null, "status": "affected", "versions": {"scheme": "code_commit", "value": "[46b5889cc2c54bac7d7e727a44d28a298df23cef,f971f1c63cf71579258360a12bd185bc1cd1a043)"}}, {"platform": null, "status": "affected", "versions": {"scheme": "code_commit", "value": "[46b5889cc2c54bac7d7e727a44d28a298df23cef,dc482a281a19a7d7e91ad1b2d551bb301c54d0e6)"}}, {"platform": null, "status": "affected", "versions": {"scheme": "code_commit", "value": "[46b5889cc2c54bac7d7e727a44d28a298df23cef,12b31d1acd20b3185bb5f0748db0cf6874c8e9d1)"}}], "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": "5.7"}}, {"platform": null, "status": "unaffected", "versions": {"scheme": "generic", "value": "[0,5.7)"}}, {"platform": null, "status": "unaffected", "versions": {"scheme": "semver", "value": "[6.12.113,6.13.0]"}}, {"platform": null, "status": "unaffected", "versions": {"scheme": "semver", "value": "[6.18.56,6.19.0]"}}, {"platform": null, "status": "unaffected", "versions": {"scheme": "semver", "value": "[7.2.10,7.3.0]"}}, {"platform": null, "status": "unaffected", "versions": {"scheme": "generic", "value": "[7.3,*]"}}], "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": "2026-10-18T20:15:14.856950+00:00", "updated": "2026-10-24T02:15:17.497168+00:00", "vendors": ["linux", "linux$PRODUCT$linux_kernel"], "weaknesses": ["CWE-788", "CWE-843"]}