CVE-2026-99087

{"dataType": "CVE_RECORD", "dataVersion": "5.2", "cveMetadata": {"cveId": "CVE-2026-99087", "assignerOrgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "state": "PUBLISHED", "assignerShortName": "Linux", "dateReserved": "2026-09-25T10:25:14.390Z", "datePublished": "2026-10-23T12:45:05.714Z", "dateUpdated": "2026-11-10T18:15:24.425Z"}, "containers": {"cna": {"providerMetadata": {"orgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "shortName": "Linux", "dateUpdated": "2026-11-10T18:15:24.425Z"}, "descriptions": [{"lang": "en", "value": "In the Linux kernel, the following vulnerability has been resolved:\n\ndm-integrity: fix NULL pointer dereference when the 'R' flag is used\n\nIf the dm-integrity device has the SB_FLAG_DIRTY_BITMAP flag set and the\nuser activates the device in the 'R' mode, a crash in dm_integrity_resume\nhappens because the function attempts to read the journal containing the\nbitmap.\n\nThis patch makes dm-integrity skip any writes to the device in\ndm_integrity_resume if the device is activated in the 'R' mode."}], "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": "468dfca38b1a6fbdccd195d875599cb7c8875cd9", "lessThan": "73e5b7b14df0430ef2135e9bd9fa3f5b253ef789", "status": "affected", "versionType": "git"}, {"version": "468dfca38b1a6fbdccd195d875599cb7c8875cd9", "lessThan": "2e25842f0e4423e0efb243f56153d842ed6b933f", "status": "affected", "versionType": "git"}, {"version": "468dfca38b1a6fbdccd195d875599cb7c8875cd9", "lessThan": "69ed43ed8a174465fca1ba6bfbde53e4618c8956", "status": "affected", "versionType": "git"}, {"version": "468dfca38b1a6fbdccd195d875599cb7c8875cd9", "lessThan": "7d4d4f3b668d708d94f62ecdd33ac330a6fd8a84", "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": "5.2", "status": "affected"}, {"version": "0", "lessThan": "5.2", "status": "unaffected", "versionType": "semver"}, {"version": "6.12.117", "lessThanOrEqual": "6.12.*", "status": "unaffected", "versionType": "semver"}, {"version": "6.18.58", "lessThanOrEqual": "6.18.*", "status": "unaffected", "versionType": "semver"}, {"version": "7.2.12", "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": "5.2", "versionEndExcluding": "6.12.117"}, {"vulnerable": true, "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "versionStartIncluding": "5.2", "versionEndExcluding": "6.18.58"}, {"vulnerable": true, "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "versionStartIncluding": "5.2", "versionEndExcluding": "7.2.12"}, {"vulnerable": true, "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "versionStartIncluding": "5.2", "versionEndExcluding": "7.3"}]}]}], "references": [{"url": "https://git.kernel.org/stable/c/73e5b7b14df0430ef2135e9bd9fa3f5b253ef789"}, {"url": "https://git.kernel.org/stable/c/2e25842f0e4423e0efb243f56153d842ed6b933f"}, {"url": "https://git.kernel.org/stable/c/69ed43ed8a174465fca1ba6bfbde53e4618c8956"}, {"url": "https://git.kernel.org/stable/c/7d4d4f3b668d708d94f62ecdd33ac330a6fd8a84"}], "title": "dm-integrity: fix NULL pointer dereference when the 'R' flag is used", "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": "73e5b7b14df0430ef2135e9bd9fa3f5b253ef789", "status": "affected", "version": "468dfca38b1a6fbdccd195d875599cb7c8875cd9", "versionType": "git"}, {"lessThan": "2e25842f0e4423e0efb243f56153d842ed6b933f", "status": "affected", "version": "468dfca38b1a6fbdccd195d875599cb7c8875cd9", "versionType": "git"}, {"lessThan": "69ed43ed8a174465fca1ba6bfbde53e4618c8956", "status": "affected", "version": "468dfca38b1a6fbdccd195d875599cb7c8875cd9", "versionType": "git"}, {"lessThan": "7d4d4f3b668d708d94f62ecdd33ac330a6fd8a84", "status": "affected", "version": "468dfca38b1a6fbdccd195d875599cb7c8875cd9", "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": "5.2"}, {"lessThan": "5.2", "status": "unaffected", "version": "0", "versionType": "semver"}, {"lessThanOrEqual": "6.12.*", "status": "unaffected", "version": "6.12.117", "versionType": "semver"}, {"lessThanOrEqual": "6.18.*", "status": "unaffected", "version": "6.18.58", "versionType": "semver"}, {"lessThanOrEqual": "7.2.*", "status": "unaffected", "version": "7.2.12", "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 NULL pointer dereference when the 'R' flag is used\n\nIf the dm-integrity device has the SB_FLAG_DIRTY_BITMAP flag set and the\nuser activates the device in the 'R' mode, a crash in dm_integrity_resume\nhappens because the function attempts to read the journal containing the\nbitmap.\n\nThis patch makes dm-integrity skip any writes to the device in\ndm_integrity_resume if the device is activated in the 'R' mode."}], "id": "CVE-2026-99087", "lastModified": "2026-11-10T19:22:30.250", "metrics": {}, "published": "2026-10-23T13:17:33.240", "references": [{"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "url": "https://git.kernel.org/stable/c/2e25842f0e4423e0efb243f56153d842ed6b933f"}, {"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "url": "https://git.kernel.org/stable/c/69ed43ed8a174465fca1ba6bfbde53e4618c8956"}, {"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "url": "https://git.kernel.org/stable/c/73e5b7b14df0430ef2135e9bd9fa3f5b253ef789"}, {"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "url": "https://git.kernel.org/stable/c/7d4d4f3b668d708d94f62ecdd33ac330a6fd8a84"}], "sourceIdentifier": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "vulnStatus": "Received"}

{"bugzilla": {"description": "kernel: dm-integrity: fix NULL pointer dereference when the 'R' flag is used", "id": "2559690", "url": "https://bugzilla.redhat.com/show_bug.cgi?id=2559690"}, "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-476", "details": ["In the Linux kernel, the following vulnerability has been resolved:\ndm-integrity: fix NULL pointer dereference when the 'R' flag is used\nIf the dm-integrity device has the SB_FLAG_DIRTY_BITMAP flag set and the\nuser activates the device in the 'R' mode, a crash in dm_integrity_resume\nhappens because the function attempts to read the journal containing the\nbitmap.\nThis patch makes dm-integrity skip any writes to the device in\ndm_integrity_resume if the device is activated in the 'R' mode.", "A flaw was found in the Linux kernel's device-mapper integrity (dm-integrity) subsystem. A local user with administrative privileges can cause a Denial of Service (DoS) by activating a storage device in read-only mode when dirty journal bitmap flags are set. This issue occurs because the driver attempts to perform write operations and read journal data on a read-only device during resume, triggering a NULL pointer dereference and crashing the system."], "name": "CVE-2026-99087", "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": "Fix deferred", "package_name": "kernel", "product_name": "Red Hat Enterprise Linux 8"}, {"cpe": "cpe:/o:redhat:enterprise_linux:8", "fix_state": "Fix deferred", "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": "Fix deferred", "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": "2026-10-23T00:00:00Z", "references": ["https://www.cve.org/CVERecord?id=CVE-2026-99087\nhttps://nvd.nist.gov/vuln/detail/CVE-2026-99087\nhttps://git.kernel.org/pub/scm/linux/security/vulns.git/plain/cve/published/2026/CVE-2026-99087.mbox"], "threat_severity": "Moderate"}

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