CVE-2026-99098

{"dataType": "CVE_RECORD", "dataVersion": "5.2", "cveMetadata": {"cveId": "CVE-2026-99098", "assignerOrgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "state": "PUBLISHED", "assignerShortName": "Linux", "dateReserved": "2026-09-25T10:25:14.391Z", "datePublished": "2026-10-26T14:52:04.416Z", "dateUpdated": "2026-10-26T14:52:04.416Z"}, "containers": {"cna": {"providerMetadata": {"orgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "shortName": "Linux", "dateUpdated": "2026-10-26T14:52:04.416Z"}, "descriptions": [{"lang": "en", "value": "In the Linux kernel, the following vulnerability has been resolved:\n\ndm-integrity: fix buffer overflow in inline mode with large tag size\n\nIn inline mode, dm_integrity_check and dm_integrity_inline_recheck\ncompute the checksum of each block into an on-stack buffer of\nHASH_MAX_DIGESTSIZE bytes. integrity_sector_checksum pads its result\nwith zeroes up to the tag size, so if the tag size is larger than\nHASH_MAX_DIGESTSIZE, the padding runs past the end of the buffer. With\nCONFIG_STACKPROTECTOR the kernel panics in dm_integrity_check on the\nfirst read.\n\nEnlarge both buffers to hold MAX_TAG_SIZE bytes, as commit b93b6643e9b5\n(\"dm integrity: fix a crash with unusually large tag size\") did for\nintegrity_metadata.\n\nNote that this is not a security bug because the buffer overflow can only\nbe triggered by root."}], "affected": [{"product": "Linux", "vendor": "Linux", "defaultStatus": "unaffected", "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git", "programFiles": ["drivers/md/dm-integrity.c"], "versions": [{"version": "fb0987682c629c1d2c476f35f6fde405a5e304a4", "lessThan": "3c7aad85aeb9e28386672e3a009aa2e61f751b86", "status": "affected", "versionType": "git"}, {"version": "fb0987682c629c1d2c476f35f6fde405a5e304a4", "lessThan": "4f0ee735dc68e3e6c4dd9a666d7f7047163c4165", "status": "affected", "versionType": "git"}, {"version": "fb0987682c629c1d2c476f35f6fde405a5e304a4", "lessThan": "f49cd7820cd0a96f20e1aa2708adb002124e38a7", "status": "affected", "versionType": "git"}, {"version": "fb0987682c629c1d2c476f35f6fde405a5e304a4", "lessThan": "764b683a6180fd72c931c13fea98d383506a3475", "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/md/dm-integrity.c"], "versions": [{"version": "6.11", "status": "affected"}, {"version": "0", "lessThan": "6.11", "status": "unaffected", "versionType": "semver"}, {"version": "6.12.114", "lessThanOrEqual": "6.12.*", "status": "unaffected", "versionType": "semver"}, {"version": "6.18.57", "lessThanOrEqual": "6.18.*", "status": "unaffected", "versionType": "semver"}, {"version": "7.2.11", "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": "6.11", "versionEndExcluding": "6.12.114"}, {"vulnerable": true, "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "versionStartIncluding": "6.11", "versionEndExcluding": "6.18.57"}, {"vulnerable": true, "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "versionStartIncluding": "6.11", "versionEndExcluding": "7.2.11"}, {"vulnerable": true, "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "versionStartIncluding": "6.11", "versionEndExcluding": "7.3"}]}]}], "references": [{"url": "https://git.kernel.org/stable/c/3c7aad85aeb9e28386672e3a009aa2e61f751b86"}, {"url": "https://git.kernel.org/stable/c/4f0ee735dc68e3e6c4dd9a666d7f7047163c4165"}, {"url": "https://git.kernel.org/stable/c/f49cd7820cd0a96f20e1aa2708adb002124e38a7"}, {"url": "https://git.kernel.org/stable/c/764b683a6180fd72c931c13fea98d383506a3475"}], "title": "dm-integrity: fix buffer overflow in inline mode with large tag size", "x_generator": {"engine": "bippy-1.2.0"}}}}

{}

{"affected": [{"affectedData": [{"defaultStatus": "unaffected", "product": "Linux", "programFiles": ["drivers/md/dm-integrity.c"], "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git", "vendor": "Linux", "versions": [{"lessThan": "3c7aad85aeb9e28386672e3a009aa2e61f751b86", "status": "affected", "version": "fb0987682c629c1d2c476f35f6fde405a5e304a4", "versionType": "git"}, {"lessThan": "4f0ee735dc68e3e6c4dd9a666d7f7047163c4165", "status": "affected", "version": "fb0987682c629c1d2c476f35f6fde405a5e304a4", "versionType": "git"}, {"lessThan": "f49cd7820cd0a96f20e1aa2708adb002124e38a7", "status": "affected", "version": "fb0987682c629c1d2c476f35f6fde405a5e304a4", "versionType": "git"}, {"lessThan": "764b683a6180fd72c931c13fea98d383506a3475", "status": "affected", "version": "fb0987682c629c1d2c476f35f6fde405a5e304a4", "versionType": "git"}]}, {"defaultStatus": "affected", "product": "Linux", "programFiles": ["drivers/md/dm-integrity.c"], "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git", "vendor": "Linux", "versions": [{"status": "affected", "version": "6.11"}, {"lessThan": "6.11", "status": "unaffected", "version": "0", "versionType": "semver"}, {"lessThanOrEqual": "6.12.*", "status": "unaffected", "version": "6.12.114", "versionType": "semver"}, {"lessThanOrEqual": "6.18.*", "status": "unaffected", "version": "6.18.57", "versionType": "semver"}, {"lessThanOrEqual": "7.2.*", "status": "unaffected", "version": "7.2.11", "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\ndm-integrity: fix buffer overflow in inline mode with large tag size\n\nIn inline mode, dm_integrity_check and dm_integrity_inline_recheck\ncompute the checksum of each block into an on-stack buffer of\nHASH_MAX_DIGESTSIZE bytes. integrity_sector_checksum pads its result\nwith zeroes up to the tag size, so if the tag size is larger than\nHASH_MAX_DIGESTSIZE, the padding runs past the end of the buffer. With\nCONFIG_STACKPROTECTOR the kernel panics in dm_integrity_check on the\nfirst read.\n\nEnlarge both buffers to hold MAX_TAG_SIZE bytes, as commit b93b6643e9b5\n(\"dm integrity: fix a crash with unusually large tag size\") did for\nintegrity_metadata.\n\nNote that this is not a security bug because the buffer overflow can only\nbe triggered by root."}], "id": "CVE-2026-99098", "lastModified": "2026-10-26T15:16:48.870", "metrics": {}, "published": "2026-10-26T15:16:48.870", "references": [{"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "url": "https://git.kernel.org/stable/c/3c7aad85aeb9e28386672e3a009aa2e61f751b86"}, {"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "url": "https://git.kernel.org/stable/c/4f0ee735dc68e3e6c4dd9a666d7f7047163c4165"}, {"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "url": "https://git.kernel.org/stable/c/764b683a6180fd72c931c13fea98d383506a3475"}, {"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "url": "https://git.kernel.org/stable/c/f49cd7820cd0a96f20e1aa2708adb002124e38a7"}], "sourceIdentifier": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "vulnStatus": "Received"}

{"bugzilla": {"description": "kernel: dm-integrity: fix buffer overflow in inline mode with large tag size", "id": "2560864", "url": "https://bugzilla.redhat.com/show_bug.cgi?id=2560864"}, "csaw": false, "cvss3": {"cvss3_base_score": "4.4", "cvss3_scoring_vector": "CVSS:3.1/AV:L/AC:L/PR:H/UI:N/S:U/C:N/I:N/A:H", "status": "draft"}, "cwe": "CWE-787", "details": ["In the Linux kernel, the following vulnerability has been resolved:\ndm-integrity: fix buffer overflow in inline mode with large tag size\nIn inline mode, dm_integrity_check and dm_integrity_inline_recheck\ncompute the checksum of each block into an on-stack buffer of\nHASH_MAX_DIGESTSIZE bytes. integrity_sector_checksum pads its result\nwith zeroes up to the tag size, so if the tag size is larger than\nHASH_MAX_DIGESTSIZE, the padding runs past the end of the buffer. With\nCONFIG_STACKPROTECTOR the kernel panics in dm_integrity_check on the\nfirst read.\nEnlarge both buffers to hold MAX_TAG_SIZE bytes, as commit b93b6643e9b5\n(\"dm integrity: fix a crash with unusually large tag size\") did for\nintegrity_metadata.\nNote that this is not a security bug because the buffer overflow can only\nbe triggered by root.", "A flaw was found in the Linux kernel's dm-integrity subsystem. When operating in inline mode with a tag size larger than the expected maximum digest size, checksum calculation pads data past the boundary of a fixed-size stack buffer. A local privileged user configuring an integrity device with an oversized tag can trigger this stack-based buffer overflow during read operations, leading to a system crash and Denial of Service (DoS)."], "name": "CVE-2026-99098", "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": "Fix deferred", "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": "Fix deferred", "package_name": "openshift/ose-rhel-coreos-9", "product_name": "Red Hat OpenShift Container Platform 4"}], "public_date": "2026-10-26T00:00:00Z", "references": ["https://www.cve.org/CVERecord?id=CVE-2026-99098\nhttps://nvd.nist.gov/vuln/detail/CVE-2026-99098\nhttps://git.kernel.org/pub/scm/linux/security/vulns.git/plain/cve/published/2026/CVE-2026-99098.mbox"], "threat_severity": "Moderate"}

{"affected": [{"configurations": [{"platform": null, "status": "affected", "versions": {"scheme": "code_commit", "value": "[fb0987682c629c1d2c476f35f6fde405a5e304a4,3c7aad85aeb9e28386672e3a009aa2e61f751b86)"}}, {"platform": null, "status": "affected", "versions": {"scheme": "code_commit", "value": "[fb0987682c629c1d2c476f35f6fde405a5e304a4,4f0ee735dc68e3e6c4dd9a666d7f7047163c4165)"}}, {"platform": null, "status": "affected", "versions": {"scheme": "code_commit", "value": "[fb0987682c629c1d2c476f35f6fde405a5e304a4,f49cd7820cd0a96f20e1aa2708adb002124e38a7)"}}, {"platform": null, "status": "affected", "versions": {"scheme": "code_commit", "value": "[fb0987682c629c1d2c476f35f6fde405a5e304a4,764b683a6180fd72c931c13fea98d383506a3475)"}}], "enrichment": {"confidence": 100.0, "confidence_source": "matching", "scores": [{"score": 100.0, "source": "matching"}]}, "original": {"product": "Linux", "source": "cna", "vendor": "Linux"}, "product": "linux", "vendor": "linux"}, {"configurations": [{"platform": null, "status": "affected", "versions": {"scheme": "generic", "value": "6.11"}}, {"platform": null, "status": "unaffected", "versions": {"scheme": "generic", "value": "[0,6.11)"}}, {"platform": null, "status": "unaffected", "versions": {"scheme": "semver", "value": "[6.12.114,6.13.0)"}}, {"platform": null, "status": "unaffected", "versions": {"scheme": "semver", "value": "[6.18.57,6.19.0)"}}, {"platform": null, "status": "unaffected", "versions": {"scheme": "semver", "value": "[7.2.11,7.3.0)"}}, {"platform": null, "status": "unaffected", "versions": {"scheme": "generic", "value": "[7.3,*]"}}], "enrichment": {"confidence": 100.0, "confidence_source": "matching", "scores": [{"score": 100.0, "source": "matching"}]}, "original": {"product": "Linux", "source": "cna", "vendor": "Linux"}, "product": "linux", "vendor": "linux"}, {"configurations": [{"platform": null, "status": "affected", "versions": {"scheme": "code_commit", "value": "[fb0987682c629c1d2c476f35f6fde405a5e304a4,3c7aad85aeb9e28386672e3a009aa2e61f751b86)"}}, {"platform": null, "status": "affected", "versions": {"scheme": "code_commit", "value": "[fb0987682c629c1d2c476f35f6fde405a5e304a4,4f0ee735dc68e3e6c4dd9a666d7f7047163c4165)"}}, {"platform": null, "status": "affected", "versions": {"scheme": "code_commit", "value": "[fb0987682c629c1d2c476f35f6fde405a5e304a4,f49cd7820cd0a96f20e1aa2708adb002124e38a7)"}}, {"platform": null, "status": "affected", "versions": {"scheme": "code_commit", "value": "[fb0987682c629c1d2c476f35f6fde405a5e304a4,764b683a6180fd72c931c13fea98d383506a3475)"}}], "enrichment": {"confidence": 100.0, "confidence_source": "matching", "scores": [{"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": "6.11"}}, {"platform": null, "status": "unaffected", "versions": {"scheme": "generic", "value": "[0,6.11)"}}, {"platform": null, "status": "unaffected", "versions": {"scheme": "semver", "value": "[6.12.114,6.13.0)"}}, {"platform": null, "status": "unaffected", "versions": {"scheme": "semver", "value": "[6.18.57,6.19.0)"}}, {"platform": null, "status": "unaffected", "versions": {"scheme": "semver", "value": "[7.2.11,7.3.0)"}}, {"platform": null, "status": "unaffected", "versions": {"scheme": "generic", "value": "[7.3,*]"}}], "enrichment": {"confidence": 100.0, "confidence_source": "matching", "scores": [{"score": 100.0, "source": "matching"}]}, "original": {"product": "Linux", "source": "cna", "vendor": "Linux"}, "product": "linux_kernel", "vendor": "linux"}], "created": "2026-10-26T16:45:14.917640+00:00", "updated": "2026-10-29T15:00:22.017527+00:00", "vendors": ["linux", "linux$PRODUCT$linux", "linux$PRODUCT$linux_kernel"], "weaknesses": ["CWE-122", "CWE-787"]}