CVE-2026-72102

{"dataType": "CVE_RECORD", "dataVersion": "5.2", "cveMetadata": {"cveId": "CVE-2026-72102", "assignerOrgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "state": "PUBLISHED", "assignerShortName": "Linux", "dateReserved": "2026-08-09T03:40:39.905Z", "datePublished": "2026-08-15T05:52:46.200Z", "dateUpdated": "2026-10-19T21:19:27.969Z"}, "containers": {"cna": {"providerMetadata": {"orgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "shortName": "Linux", "dateUpdated": "2026-08-17T05:40:16.779Z"}, "descriptions": [{"lang": "en", "value": "In the Linux kernel, the following vulnerability has been resolved:\n\ndm_early_create: fix freeing used table on dm_resume failure\n\nIf dm_resume fails, the kernel attempts to free table with\ndm_table_destroy, but the table was already instantiated with\ndm_swap_table. This commit skips the call to dm_table_destroy in this\ncase."}], "metrics": [{"cvssV3_1": {"version": "3.1", "vectorString": "CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H", "baseScore": 7.8, "baseSeverity": "HIGH"}, "scenarios": [{"lang": "en", "value": "AV:L - The bug is only reachable via the dm-mod.create kernel boot parameter processed in late_initcall dm_init_init() calling dm_early_create(); there is no network, adjacent, ioctl, netlink, or post-boot userspace path into this __init-only device-mapper setup code.\nAC:L - Once dm_swap_table() installs the table, an attacker controlling dm-mod.create can deterministically force dm_resume() to fail (e.g., paired snapshot-origin preresume handover rejection or verity/crypt preresume errors) without races or attacker-uncontrolled memory layout.\nPR:L - dm_early_create() performs no capability or credential checks on its error path; unlike runtime DM_DEV_CREATE ioctls that require CAP_SYS_ADMIN, triggering the post-swap dm_resume failure only needs crafting dm-mod.create table parameters at boot, not real-root dm-ioctl privileges unobtainable via user namespaces.\nUI:N - The vulnerable teardown runs automatically during late_initcall once dm-mod.create is present and dm_resume fails; no victim must open files, mount filesystems, or take any interactive action beyond rebooting with the crafted boot configuration.\nS:U - The use-after-free and double-free corrupt kernel heap memory during device-mapper early boot setup within the kernel trust boundary; it does not cross VM, container, or IOMMU isolation boundaries into another security authority.\nC:H - dm_table_destroy() frees a dm_table still referenced through md->map after dm_swap_table(), creating a kernel heap use-after-free that can expose freed object contents and adjacent kernel memory to subsequent allocations and readers.\nI:H - UAF on the live dm_table enables heap grooming and corrupts destructor paths invoked during erroneous teardown (dm_table_destroy target dtr hooks, then dm_destroy __unbind), providing memory corruption primitives developable into arbitrary kernel writes or control-flow hijack.\nA:H - Freeing the active table then calling dm_destroy()/__unbind() on the same object causes double-free/use-after-free during boot cleanup, readily producing kernel panics, oopses, or unbootable systems on dm-mod.create rootfs platforms (Android/ChromeOS/embedded)."}]}], "affected": [{"product": "Linux", "vendor": "Linux", "defaultStatus": "unaffected", "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git", "programFiles": ["drivers/md/dm-ioctl.c"], "versions": [{"version": "6bbc923dfcf57d6b97388819a7393835664c7a8e", "lessThan": "3ba377a47a093cc19647ca7f102acd33a211d472", "status": "affected", "versionType": "git"}, {"version": "6bbc923dfcf57d6b97388819a7393835664c7a8e", "lessThan": "72c3283a2abd60ecef295e02270f22ef1dfccd25", "status": "affected", "versionType": "git"}, {"version": "6bbc923dfcf57d6b97388819a7393835664c7a8e", "lessThan": "d6066145347e14db84c35b445e309f095d0d8125", "status": "affected", "versionType": "git"}, {"version": "6bbc923dfcf57d6b97388819a7393835664c7a8e", "lessThan": "259ce9e3fc3a3f8c4e393a2072b8f34302eb4d5a", "status": "affected", "versionType": "git"}, {"version": "6bbc923dfcf57d6b97388819a7393835664c7a8e", "lessThan": "5f6500d44a912d4aed664600966706d76b81d9af", "status": "affected", "versionType": "git"}, {"version": "6bbc923dfcf57d6b97388819a7393835664c7a8e", "lessThan": "92e3c93d60be1f2425738cd66dbadac7d6bc0cd1", "status": "affected", "versionType": "git"}, {"version": "6bbc923dfcf57d6b97388819a7393835664c7a8e", "lessThan": "7d8ed7cb844df21e4d93af11250fb3a5cb861147", "status": "affected", "versionType": "git"}, {"version": "6bbc923dfcf57d6b97388819a7393835664c7a8e", "lessThan": "366665416f20527ff7cad548a32d1ddf23195740", "status": "affected", "versionType": "git"}]}, {"product": "Linux", "vendor": "Linux", "defaultStatus": "affected", 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"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": "5.1", "versionEndExcluding": "5.10.261"}, {"vulnerable": true, "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "versionStartIncluding": "5.1", "versionEndExcluding": "5.15.212"}, {"vulnerable": true, "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "versionStartIncluding": "5.1", "versionEndExcluding": "6.1.178"}, {"vulnerable": true, "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "versionStartIncluding": "5.1", "versionEndExcluding": "6.6.145"}, {"vulnerable": true, "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "versionStartIncluding": "5.1", "versionEndExcluding": "6.12.97"}, {"vulnerable": true, "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", 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"https://git.kernel.org/stable/c/366665416f20527ff7cad548a32d1ddf23195740"}], "title": "dm_early_create: fix freeing used table on dm_resume failure", "x_generator": {"engine": "bippy-1.2.0"}}, "adp": [{"metrics": [{"other": {"type": "ssvc", "content": {"id": "CVE-2026-72102", "role": "CISA Coordinator", "options": [{"Exploitation": "none"}, {"Automatable": "no"}, {"Technical Impact": "total"}], "version": "2.0.3", "timestamp": "2026-10-16T15:52:02.070823Z"}}}], "problemTypes": [{"descriptions": [{"lang": "en", "type": "CWE", "cweId": "CWE-415", "description": "CWE-415 Double Free"}]}], "title": "CISA ADP Vulnrichment", "providerMetadata": {"orgId": "134c704f-9b21-4f2e-91b3-4a467353bcc0", "shortName": "CISA-ADP", "dateUpdated": "2026-10-19T21:19:27.969Z"}}]}}

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there is no network, adjacent, ioctl, netlink, or post-boot userspace path into this __init-only device-mapper setup code.\nAC:L - Once dm_swap_table() installs the table, an attacker controlling dm-mod.create can deterministically force dm_resume() to fail (e.g., paired snapshot-origin preresume handover rejection or verity/crypt preresume errors) without races or attacker-uncontrolled memory layout.\nPR:L - dm_early_create() performs no capability or credential checks on its error path; unlike runtime DM_DEV_CREATE ioctls that require CAP_SYS_ADMIN, triggering the post-swap dm_resume failure only needs crafting dm-mod.create table parameters at boot, not real-root dm-ioctl privileges unobtainable via user namespaces.\nUI:N - The vulnerable teardown runs automatically during late_initcall once dm-mod.create is present and dm_resume fails; no victim must open files, mount filesystems, or take any interactive action beyond rebooting with the crafted boot configuration.\nS:U - The use-after-free and double-free corrupt kernel heap memory during device-mapper early boot setup within the kernel trust boundary; it does not cross VM, container, or IOMMU isolation boundaries into another security authority.\nC:H - dm_table_destroy() frees a dm_table still referenced through md->map after dm_swap_table(), creating a kernel heap use-after-free that can expose freed object contents and adjacent kernel memory to subsequent allocations and readers.\nI:H - UAF on the live dm_table enables heap grooming and corrupts destructor paths invoked during erroneous teardown (dm_table_destroy target dtr hooks, then dm_destroy __unbind), providing memory corruption primitives developable into arbitrary kernel writes or control-flow hijack.\nA:H - Freeing the active table then calling dm_destroy()/__unbind() on the same object causes double-free/use-after-free during boot cleanup, readily producing kernel panics, oopses, or unbootable systems on dm-mod.create rootfs platforms (Android/ChromeOS/embedded)."}]}], "affected": [{"repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git", "vendor": "Linux", "product": "Linux", "versions": [{"status": "affected", "version": "6bbc923dfcf57d6b97388819a7393835664c7a8e", "lessThan": "3ba377a47a093cc19647ca7f102acd33a211d472", "versionType": "git"}, {"status": "affected", "version": "6bbc923dfcf57d6b97388819a7393835664c7a8e", "lessThan": "72c3283a2abd60ecef295e02270f22ef1dfccd25", "versionType": "git"}, {"status": "affected", "version": "6bbc923dfcf57d6b97388819a7393835664c7a8e", "lessThan": "d6066145347e14db84c35b445e309f095d0d8125", "versionType": "git"}, {"status": "affected", "version": "6bbc923dfcf57d6b97388819a7393835664c7a8e", "lessThan": "259ce9e3fc3a3f8c4e393a2072b8f34302eb4d5a", "versionType": "git"}, {"status": "affected", "version": "6bbc923dfcf57d6b97388819a7393835664c7a8e", "lessThan": "5f6500d44a912d4aed664600966706d76b81d9af", "versionType": "git"}, {"status": "affected", "version": "6bbc923dfcf57d6b97388819a7393835664c7a8e", "lessThan": "92e3c93d60be1f2425738cd66dbadac7d6bc0cd1", "versionType": "git"}, {"status": "affected", "version": "6bbc923dfcf57d6b97388819a7393835664c7a8e", "lessThan": "7d8ed7cb844df21e4d93af11250fb3a5cb861147", "versionType": "git"}, {"status": "affected", "version": "6bbc923dfcf57d6b97388819a7393835664c7a8e", "lessThan": "366665416f20527ff7cad548a32d1ddf23195740", "versionType": "git"}], "programFiles": ["drivers/md/dm-ioctl.c"], "defaultStatus": "unaffected"}, {"repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git", "vendor": "Linux", "product": "Linux", "versions": [{"status": "affected", "version": "5.1"}, {"status": "unaffected", "version": "0", "lessThan": "5.1", "versionType": "semver"}, {"status": "unaffected", "version": "5.10.261", "versionType": "semver", "lessThanOrEqual": "5.10.*"}, {"status": "unaffected", "version": "5.15.212", "versionType": "semver", "lessThanOrEqual": "5.15.*"}, {"status": "unaffected", "version": "6.1.178", "versionType": "semver", "lessThanOrEqual": "6.1.*"}, {"status": "unaffected", "version": "6.6.145", "versionType": "semver", "lessThanOrEqual": "6.6.*"}, {"status": "unaffected", "version": "6.12.97", "versionType": "semver", "lessThanOrEqual": "6.12.*"}, {"status": "unaffected", "version": "6.18.40", "versionType": "semver", "lessThanOrEqual": "6.18.*"}, {"status": "unaffected", "version": "7.1.5", "versionType": "semver", "lessThanOrEqual": "7.1.*"}, {"status": "unaffected", "version": "7.2", "versionType": "original_commit_for_fix", "lessThanOrEqual": "*"}], "programFiles": ["drivers/md/dm-ioctl.c"], "defaultStatus": "affected"}], "references": [{"url": "https://git.kernel.org/stable/c/3ba377a47a093cc19647ca7f102acd33a211d472"}, {"url": "https://git.kernel.org/stable/c/72c3283a2abd60ecef295e02270f22ef1dfccd25"}, {"url": "https://git.kernel.org/stable/c/d6066145347e14db84c35b445e309f095d0d8125"}, {"url": "https://git.kernel.org/stable/c/259ce9e3fc3a3f8c4e393a2072b8f34302eb4d5a"}, {"url": "https://git.kernel.org/stable/c/5f6500d44a912d4aed664600966706d76b81d9af"}, {"url": "https://git.kernel.org/stable/c/92e3c93d60be1f2425738cd66dbadac7d6bc0cd1"}, {"url": "https://git.kernel.org/stable/c/7d8ed7cb844df21e4d93af11250fb3a5cb861147"}, {"url": "https://git.kernel.org/stable/c/366665416f20527ff7cad548a32d1ddf23195740"}], "x_generator": {"engine": "bippy-1.2.0"}, "descriptions": [{"lang": "en", "value": "In the Linux kernel, the following vulnerability has been resolved:\n\ndm_early_create: fix freeing used table on dm_resume failure\n\nIf dm_resume fails, the kernel attempts to free table with\ndm_table_destroy, but the table was already instantiated with\ndm_swap_table. This commit skips the call to dm_table_destroy in this\ncase."}], "cpeApplicability": [{"nodes": [{"negate": false, "cpeMatch": [{"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "vulnerable": true, "versionEndExcluding": "5.10.261", "versionStartIncluding": "5.1"}, {"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "vulnerable": true, "versionEndExcluding": "5.15.212", "versionStartIncluding": "5.1"}, {"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "vulnerable": true, "versionEndExcluding": "6.1.178", "versionStartIncluding": "5.1"}, {"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "vulnerable": true, "versionEndExcluding": "6.6.145", "versionStartIncluding": "5.1"}, {"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "vulnerable": true, "versionEndExcluding": "6.12.97", "versionStartIncluding": "5.1"}, {"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "vulnerable": true, "versionEndExcluding": "6.18.40", "versionStartIncluding": "5.1"}, {"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "vulnerable": true, "versionEndExcluding": "7.1.5", "versionStartIncluding": "5.1"}, {"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "vulnerable": true, "versionEndExcluding": "7.2", "versionStartIncluding": "5.1"}], "operator": "OR"}]}], "providerMetadata": {"orgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "shortName": "Linux", "dateUpdated": "2026-08-17T05:40:16.779Z"}}}, "cveMetadata": {"cveId": "CVE-2026-72102", "state": "PUBLISHED", "dateUpdated": "2026-10-19T21:19:27.969Z", "dateReserved": "2026-08-09T03:40:39.905Z", "assignerOrgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "datePublished": "2026-08-15T05:52:46.200Z", "assignerShortName": "Linux"}, "dataVersion": "5.2"}

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This commit skips the call to dm_table_destroy in this\ncase."}], "id": "CVE-2026-72102", "lastModified": "2026-10-19T22:17:27.393", "metrics": {"cvssMetricV31": [{"cvssData": {"attackComplexity": "LOW", "attackVector": "LOCAL", "availabilityImpact": "HIGH", "baseScore": 7.8, "baseSeverity": "HIGH", "confidentialityImpact": "HIGH", "integrityImpact": "HIGH", "privilegesRequired": "LOW", "scope": "UNCHANGED", "userInteraction": "NONE", "vectorString": "CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H", "version": "3.1"}, "exploitabilityScore": 1.8, "impactScore": 5.9, "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "type": "Secondary"}], "ssvcV203": [{"source": "134c704f-9b21-4f2e-91b3-4a467353bcc0", "ssvcData": {"id": "CVE-2026-72102", "options": [{"exploitation": "none"}, {"automatable": "no"}, {"technicalImpact": "total"}], "role": "CISA Coordinator", "timestamp": "2026-10-16T15:52:02.070823Z", "version": "2.0.3"}}]}, "published": "2026-08-15T06:21:24.340", "references": [{"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "url": "https://git.kernel.org/stable/c/259ce9e3fc3a3f8c4e393a2072b8f34302eb4d5a"}, {"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "url": "https://git.kernel.org/stable/c/366665416f20527ff7cad548a32d1ddf23195740"}, {"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "url": "https://git.kernel.org/stable/c/3ba377a47a093cc19647ca7f102acd33a211d472"}, {"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "url": "https://git.kernel.org/stable/c/5f6500d44a912d4aed664600966706d76b81d9af"}, {"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "url": "https://git.kernel.org/stable/c/72c3283a2abd60ecef295e02270f22ef1dfccd25"}, {"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "url": "https://git.kernel.org/stable/c/7d8ed7cb844df21e4d93af11250fb3a5cb861147"}, {"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "url": "https://git.kernel.org/stable/c/92e3c93d60be1f2425738cd66dbadac7d6bc0cd1"}, {"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "url": "https://git.kernel.org/stable/c/d6066145347e14db84c35b445e309f095d0d8125"}], "sourceIdentifier": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "vulnStatus": "Received", "weaknesses": [{"description": [{"lang": "en", "value": "CWE-415"}], "source": "134c704f-9b21-4f2e-91b3-4a467353bcc0", "type": "Secondary"}]}

{"bugzilla": {"description": "kernel: dm_early_create: fix freeing used table on dm_resume failure", "id": "2516490", "url": "https://bugzilla.redhat.com/show_bug.cgi?id=2516490"}, "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-1341", "details": ["A flaw was found in the Linux kernel's device mapper (DM) subsystem. During certain resume operations, the kernel might attempt to free a memory table that has already been released. This error, known as a double-free vulnerability, can lead to memory corruption. A successful exploit could result in a system crash, causing a denial of service."], "name": "CVE-2026-72102", "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": "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": "Affected", "package_name": "kernel", "product_name": "Red Hat Enterprise Linux 9"}, {"cpe": "cpe:/o:redhat:enterprise_linux:9", "fix_state": "Affected", "package_name": "kernel-rt", "product_name": "Red Hat Enterprise Linux 9"}], "public_date": "2026-08-15T00:00:00Z", "references": ["https://www.cve.org/CVERecord?id=CVE-2026-72102\nhttps://nvd.nist.gov/vuln/detail/CVE-2026-72102\nhttps://lore.kernel.org/linux-cve-announce/2026081525-CVE-2026-72102-cdcd@gregkh/T"], "threat_severity": "Moderate"}

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