CVE-2024-53109

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As a result, nommu kernels crashed upon\naccessing a vma iterator, such as acct_collect() reading the size of vma\nentries after do_munmap().\n\nThis commit fixes this issue by passing a right argument to the\npreallocation call."}], "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 vulnerable code is reached through the munmap(2) syscall (vm_munmap \u2192 do_munmap \u2192 delete_vma_from_mm) and unconditionally via exit_mmap() on process exit, requiring local execution on the target. There is no network-facing path into mm/nommu.c.\nAC:L - On a NOMMU kernel the wrong store type is computed deterministically on every whole-VMA unmap, and because NOMMU VMAs are separated by NULL gap slots the invariant-breaking adjacent-NULL condition is produced essentially every time; the attacker fully controls VMA layout via mmap/munmap and needs no race or unpredictable memory state.\nPR:L - Any unprivileged local user can call mmap()/munmap() and exit a process; no capability, namespace, or filesystem permission is checked anywhere along the path.\nUI:N - The attacker triggers the corruption entirely within its own process by unmapping its own mappings, and the crash/OOB traversal occurs in that same process's context. No victim action is required.\nS:U - The corruption is confined to the kernel's own mm_struct maple tree and is exploited within the kernel's security authority; no VM, IOMMU, or sandbox boundary is crossed.\nC:H - mas_next_slot() walks past the end of the 256-byte maple node reading adjacent slab memory as slots/pivots, an unbounded out-of-bounds read whose values are returned as a VMA pointer and then dereferenced; leaked kernel heap contents surface to userspace through vma-iterator consumers such as acct_collect()'s vsize accounting and /proc-based VMA reporting.\nI:H - The out-of-bounds-derived pointer is used as a struct vm_area_struct in exit_mmap()'s delete_vma() path, giving an indirect call through vma->vm_ops->close, a refcount decrement via fput(vma->vm_file), and a slab free via vm_area_free() on an attacker-influenced address \u2014 a control-flow hijack and arbitrary-free primitive, on top of the persistent maple-tree gap/metadata corruption.\nA:H - The commit explicitly documents that NOMMU kernels crash on any vma-iterator access after do_munmap(); the corruption is permanent for the mm and reliably reproducible, so an unprivileged process can panic the kernel at will."}]}], "affected": [{"product": "Linux", "vendor": "Linux", "defaultStatus": "unaffected", "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git", "programFiles": ["mm/nommu.c"], "versions": [{"version": "b5df09226450165c434084d346fcb6d4858b0d52", "lessThan": "8bbf0ab631cdf1dade6745f137cff98751e6ced7", "status": "affected", "versionType": "git"}, {"version": "b5df09226450165c434084d346fcb6d4858b0d52", "lessThan": "aceaf33b7666b72dfb86e0aa977be81e3bcbc727", "status": "affected", "versionType": "git"}, {"version": "b5df09226450165c434084d346fcb6d4858b0d52", "lessThan": "247d720b2c5d22f7281437fd6054a138256986ba", "status": "affected", "versionType": "git"}]}, {"product": "Linux", "vendor": "Linux", "defaultStatus": "affected", "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git", "programFiles": ["mm/nommu.c"], "versions": [{"version": "6.6", "status": "affected"}, {"version": "0", "lessThan": "6.6", "status": "unaffected", "versionType": "semver"}, {"version": "6.6.63", "lessThanOrEqual": "6.6.*", "status": "unaffected", "versionType": "semver"}, {"version": "6.11.10", "lessThanOrEqual": "6.11.*", "status": "unaffected", "versionType": "semver"}, {"version": "6.12", "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": "6.6", "versionEndExcluding": "6.6.63"}, {"vulnerable": true, "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "versionStartIncluding": "6.6", "versionEndExcluding": "6.11.10"}, {"vulnerable": true, "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "versionStartIncluding": "6.6", "versionEndExcluding": "6.12"}]}]}], "references": [{"url": "https://git.kernel.org/stable/c/8bbf0ab631cdf1dade6745f137cff98751e6ced7"}, {"url": "https://git.kernel.org/stable/c/aceaf33b7666b72dfb86e0aa977be81e3bcbc727"}, {"url": "https://git.kernel.org/stable/c/247d720b2c5d22f7281437fd6054a138256986ba"}], "title": "nommu: pass NULL argument to vma_iter_prealloc()", "x_generator": {"engine": "bippy-1.2.0"}}, "adp": [{"metrics": [{"cvssV3_1": {"scope": "UNCHANGED", "version": "3.1", "baseScore": 5.5, "attackVector": "LOCAL", "baseSeverity": "MEDIUM", "vectorString": "CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H", "integrityImpact": "NONE", "userInteraction": "NONE", "attackComplexity": "LOW", "availabilityImpact": "HIGH", "privilegesRequired": "LOW", "confidentialityImpact": "NONE"}}, {"other": {"type": "ssvc", "content": {"id": "CVE-2024-53109", "role": "CISA Coordinator", "options": [{"Exploitation": "none"}, {"Automatable": "no"}, {"Technical Impact": "partial"}], "version": "2.0.3", "timestamp": "2025-10-01T20:10:44.376950Z"}}}], "problemTypes": [{"descriptions": [{"lang": "en", "type": "CWE", "description": "CWE-noinfo Not enough information"}]}], "title": "CISA ADP Vulnrichment", "providerMetadata": {"orgId": "134c704f-9b21-4f2e-91b3-4a467353bcc0", "shortName": "CISA-ADP", "dateUpdated": "2025-10-01T20:17:11.504Z"}}]}}

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There is no network-facing path into mm/nommu.c.\nAC:L - On a NOMMU kernel the wrong store type is computed deterministically on every whole-VMA unmap, and because NOMMU VMAs are separated by NULL gap slots the invariant-breaking adjacent-NULL condition is produced essentially every time; the attacker fully controls VMA layout via mmap/munmap and needs no race or unpredictable memory state.\nPR:L - Any unprivileged local user can call mmap()/munmap() and exit a process; no capability, namespace, or filesystem permission is checked anywhere along the path.\nUI:N - The attacker triggers the corruption entirely within its own process by unmapping its own mappings, and the crash/OOB traversal occurs in that same process's context. No victim action is required.\nS:U - The corruption is confined to the kernel's own mm_struct maple tree and is exploited within the kernel's security authority; no VM, IOMMU, or sandbox boundary is crossed.\nC:H - mas_next_slot() walks past the end of the 256-byte maple node reading adjacent slab memory as slots/pivots, an unbounded out-of-bounds read whose values are returned as a VMA pointer and then dereferenced; leaked kernel heap contents surface to userspace through vma-iterator consumers such as acct_collect()'s vsize accounting and /proc-based VMA reporting.\nI:H - The out-of-bounds-derived pointer is used as a struct vm_area_struct in exit_mmap()'s delete_vma() path, giving an indirect call through vma->vm_ops->close, a refcount decrement via fput(vma->vm_file), and a slab free via vm_area_free() on an attacker-influenced address \u2014 a control-flow hijack and arbitrary-free primitive, on top of the persistent maple-tree gap/metadata corruption.\nA:H - The commit explicitly documents that NOMMU kernels crash on any vma-iterator access after do_munmap(); the corruption is permanent for the mm and reliably reproducible, so an unprivileged process can panic the kernel at will."}]}], "affected": [{"repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git", "vendor": "Linux", "product": "Linux", "versions": [{"status": "affected", "version": "b5df09226450165c434084d346fcb6d4858b0d52", "lessThan": "8bbf0ab631cdf1dade6745f137cff98751e6ced7", "versionType": "git"}, {"status": "affected", "version": "b5df09226450165c434084d346fcb6d4858b0d52", "lessThan": "aceaf33b7666b72dfb86e0aa977be81e3bcbc727", "versionType": "git"}, {"status": "affected", "version": "b5df09226450165c434084d346fcb6d4858b0d52", "lessThan": "247d720b2c5d22f7281437fd6054a138256986ba", "versionType": "git"}], "programFiles": ["mm/nommu.c"], "defaultStatus": "unaffected"}, {"repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git", "vendor": "Linux", "product": "Linux", "versions": [{"status": "affected", "version": "6.6"}, {"status": "unaffected", "version": "0", "lessThan": "6.6", "versionType": "semver"}, {"status": "unaffected", "version": "6.6.63", "versionType": "semver", "lessThanOrEqual": "6.6.*"}, {"status": "unaffected", "version": "6.11.10", "versionType": "semver", "lessThanOrEqual": "6.11.*"}, {"status": "unaffected", "version": "6.12", "versionType": "original_commit_for_fix", "lessThanOrEqual": "*"}], "programFiles": ["mm/nommu.c"], "defaultStatus": "affected"}], "references": [{"url": "https://git.kernel.org/stable/c/8bbf0ab631cdf1dade6745f137cff98751e6ced7"}, {"url": "https://git.kernel.org/stable/c/aceaf33b7666b72dfb86e0aa977be81e3bcbc727"}, {"url": "https://git.kernel.org/stable/c/247d720b2c5d22f7281437fd6054a138256986ba"}], "x_generator": {"engine": "bippy-1.2.0"}, "descriptions": [{"lang": "en", "value": "In the Linux kernel, the following vulnerability has been resolved:\n\nnommu: pass NULL argument to vma_iter_prealloc()\n\nWhen deleting a vma entry from a maple tree, it has to pass NULL to\nvma_iter_prealloc() in order to calculate internal state of the tree, but\nit passed a wrong argument. As a result, nommu kernels crashed upon\naccessing a vma iterator, such as acct_collect() reading the size of vma\nentries after do_munmap().\n\nThis commit fixes this issue by passing a right argument to the\npreallocation call."}], "cpeApplicability": [{"nodes": [{"negate": false, "cpeMatch": [{"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "vulnerable": true, "versionEndExcluding": "6.6.63", "versionStartIncluding": "6.6"}, {"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "vulnerable": true, "versionEndExcluding": "6.11.10", "versionStartIncluding": "6.6"}, {"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "vulnerable": true, "versionEndExcluding": "6.12", "versionStartIncluding": "6.6"}], "operator": "OR"}]}], "providerMetadata": {"orgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "shortName": "Linux", "dateUpdated": "2026-08-05T11:43:47.659Z"}}}, "cveMetadata": {"cveId": "CVE-2024-53109", "state": "PUBLISHED", "dateUpdated": "2026-08-05T11:43:47.659Z", "dateReserved": "2024-11-19T17:17:24.993Z", "assignerOrgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "datePublished": "2024-12-02T13:44:41.622Z", "assignerShortName": "Linux"}, "dataVersion": "5.2"}

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As a result, nommu kernels crashed upon\naccessing a vma iterator, such as acct_collect() reading the size of vma\nentries after do_munmap().\n\nThis commit fixes this issue by passing a right argument to the\npreallocation call."}, {"lang": "es", "value": " En el kernel de Linux, se ha resuelto la siguiente vulnerabilidad: nommu: pasar argumento NULL a vma_iter_prealloc(). Al eliminar una entrada vma de un \u00e1rbol maple, tiene que pasar NULL a vma_iter_prealloc() para calcular el estado interno del \u00e1rbol, pero pas\u00f3 un argumento incorrecto. Como resultado, los kernels nommu fallaban al acceder a un iterador vma, como acct_collect() que lee el tama\u00f1o de las entradas vma despu\u00e9s de do_munmap(). Esta confirmaci\u00f3n corrige este problema al pasar un argumento correcto a la llamada de preasignaci\u00f3n."}], "id": "CVE-2024-53109", "lastModified": "2026-08-04T11:21:54.497", "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"}, {"cvssData": {"attackComplexity": "LOW", "attackVector": "LOCAL", "availabilityImpact": "HIGH", "baseScore": 5.5, "baseSeverity": "MEDIUM", "confidentialityImpact": "NONE", "integrityImpact": "NONE", "privilegesRequired": "LOW", "scope": "UNCHANGED", "userInteraction": "NONE", "vectorString": "CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H", "version": "3.1"}, "exploitabilityScore": 1.8, "impactScore": 3.6, "source": "nvd@nist.gov", "type": "Primary"}, {"cvssData": {"attackComplexity": "LOW", "attackVector": "LOCAL", "availabilityImpact": "HIGH", "baseScore": 5.5, "baseSeverity": "MEDIUM", "confidentialityImpact": "NONE", "integrityImpact": "NONE", "privilegesRequired": "LOW", "scope": "UNCHANGED", "userInteraction": "NONE", "vectorString": "CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H", "version": "3.1"}, "exploitabilityScore": 1.8, "impactScore": 3.6, "source": "134c704f-9b21-4f2e-91b3-4a467353bcc0", "type": "Secondary"}], "ssvcV203": [{"source": "134c704f-9b21-4f2e-91b3-4a467353bcc0", "ssvcData": {"id": "CVE-2024-53109", "options": [{"exploitation": "none"}, {"automatable": "no"}, {"technicalImpact": "partial"}], "role": "CISA Coordinator", "timestamp": "2025-10-01T20:10:44.376950Z", "version": "2.0.3"}}]}, "published": "2024-12-02T14:15:11.713", "references": [{"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "tags": ["Patch"], "url": "https://git.kernel.org/stable/c/247d720b2c5d22f7281437fd6054a138256986ba"}, {"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "tags": ["Patch"], "url": "https://git.kernel.org/stable/c/8bbf0ab631cdf1dade6745f137cff98751e6ced7"}, {"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "tags": ["Patch"], "url": "https://git.kernel.org/stable/c/aceaf33b7666b72dfb86e0aa977be81e3bcbc727"}], "sourceIdentifier": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "vulnStatus": "Modified", "weaknesses": [{"description": [{"lang": "en", "value": "NVD-CWE-noinfo"}], "source": "nvd@nist.gov", "type": "Primary"}]}

{"bugzilla": {"description": "kernel: nommu: pass NULL argument to vma_iter_prealloc()", "id": "2329923", "url": "https://bugzilla.redhat.com/show_bug.cgi?id=2329923"}, "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-99", "details": ["In the Linux kernel, the following vulnerability has been resolved:\nnommu: pass NULL argument to vma_iter_prealloc()\nWhen deleting a vma entry from a maple tree, it has to pass NULL to\nvma_iter_prealloc() in order to calculate internal state of the tree, but\nit passed a wrong argument. As a result, nommu kernels crashed upon\naccessing a vma iterator, such as acct_collect() reading the size of vma\nentries after do_munmap().\nThis commit fixes this issue by passing a right argument to the\npreallocation call."], "name": "CVE-2024-53109", "package_state": [{"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": "Out of support scope", "package_name": "kernel", "product_name": "Red Hat Enterprise Linux 7"}, {"cpe": "cpe:/o:redhat:enterprise_linux:7", "fix_state": "Out of support scope", "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": "Will not fix", "package_name": "kernel", "product_name": "Red Hat Enterprise Linux 9"}, {"cpe": "cpe:/o:redhat:enterprise_linux:9", "fix_state": "Will not fix", "package_name": "kernel-rt", "product_name": "Red Hat Enterprise Linux 9"}], "public_date": "2024-12-02T00:00:00Z", "references": ["https://www.cve.org/CVERecord?id=CVE-2024-53109\nhttps://nvd.nist.gov/vuln/detail/CVE-2024-53109\nhttps://lore.kernel.org/linux-cve-announce/2024120247-CVE-2024-53109-2481@gregkh/T"], "threat_severity": "Moderate"}

{}