CVE-2025-38065

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No network protocol handler processes attacker data to reach the flaw.\nAC:L - On an affected system (32-bit kernel with an OrangeFS mount) every trigger condition is entirely attacker-controlled \u2014 the file size, the write offset, and the timing of writeback via fsync/msync or the synchronous launder_folio path in orangefs_write_begin \u2014 with no race to win and no dependence on memory layout.\nPR:L - Any unprivileged local user with write permission to a directory on the OrangeFS mount can create the oversized file and dirty a page at a high offset; OrangeFS scratch space is typically group- or world-writable. No capability check exists on the write/writeback path.\nUI:N - The OrangeFS mount is an existing part of the deployment, not something the attacker must convince a victim to establish; exploitation is entirely self-driven by the attacker's own file writes and fsync.\nS:U - The out-of-bounds read and write occur within kernel memory under the same security authority as the vulnerable component; no VM, IOMMU, or sandbox boundary is crossed.\nC:H - The multi-gigabyte bvec makes iterate_bvec() walk adjacent struct pages past the single dirty page, copying arbitrary kernel and other-process memory into the OrangeFS shared bufmap, which is mmap'd by the userspace pvfs2-client-core process and transmitted to the OrangeFS server \u2014 a large-scale kernel memory disclosure.\nI:H - orangefs_bufmap_copy_from_iovec() loops with no bound on the descriptor index, reading to->page_array[i] far past the end of the kmalloc'd array and using the resulting wild struct page pointers as copy_page_from_iter() destinations, giving an out-of-bounds kernel write of attacker-controlled page-cache data.\nA:H - Dereferencing garbage struct page pointers and kmapping invalid PFNs across gigabytes of address space reliably produces a kernel oops or panic; the spurious WARN_ON()s also panic outright under panic_on_warn."}]}], "affected": [{"product": "Linux", "vendor": "Linux", "defaultStatus": "unaffected", "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git", "programFiles": ["fs/orangefs/inode.c"], "versions": [{"version": "f7ab093f74bf638ed98fd1115f3efa17e308bb7f", "lessThan": "ceaf195ed285b77791e29016ee6344b3ded609b3", "status": "affected", "versionType": "git"}, {"version": "f7ab093f74bf638ed98fd1115f3efa17e308bb7f", "lessThan": "341e3a5984cf5761f3dab16029d7e9fb1641d5ff", "status": "affected", "versionType": "git"}, {"version": "f7ab093f74bf638ed98fd1115f3efa17e308bb7f", "lessThan": "5111227d7f1f57f6804666b3abf780a23f44fc1d", "status": "affected", 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'len' se utiliza para almacenar el resultado de i_size_read(), por lo que hacer que 'len' sea un size_t da como resultado un truncamiento a 4 GiB en sistemas de 32 bits."}], "id": "CVE-2025-38065", "lastModified": "2026-07-30T06:22:47.850", "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"}]}, "published": "2025-06-18T10:15:39.460", "references": [{"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "tags": ["Patch"], "url": "https://git.kernel.org/stable/c/062e8093592fb866b8e016641a8b27feb6ac509d"}, {"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "tags": ["Patch"], "url": "https://git.kernel.org/stable/c/121f0335d91e46369bf55b5da4167d82b099a166"}, {"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "tags": ["Patch"], "url": "https://git.kernel.org/stable/c/15602508ad2f923e228b9521960b4addcd27d9c4"}, {"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "tags": ["Patch"], "url": "https://git.kernel.org/stable/c/2323b806221e6268a4e17711bc72e2fc87c191a3"}, {"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "tags": ["Patch"], "url": "https://git.kernel.org/stable/c/341e3a5984cf5761f3dab16029d7e9fb1641d5ff"}, {"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "tags": ["Patch"], "url": "https://git.kernel.org/stable/c/5111227d7f1f57f6804666b3abf780a23f44fc1d"}, {"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "tags": ["Patch"], "url": "https://git.kernel.org/stable/c/cd918ec24168fe08c6aafc077dd3b6d88364c5cf"}, {"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "tags": ["Patch"], "url": "https://git.kernel.org/stable/c/ceaf195ed285b77791e29016ee6344b3ded609b3"}, {"source": "af854a3a-2127-422b-91ae-364da2661108", "tags": ["Third Party Advisory"], "url": "https://lists.debian.org/debian-lts-announce/2025/10/msg00007.html"}, {"source": "af854a3a-2127-422b-91ae-364da2661108", "tags": ["Third Party Advisory"], "url": "https://lists.debian.org/debian-lts-announce/2025/10/msg00008.html"}], "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: orangefs: Do not truncate file size", "id": "2373363", "url": "https://bugzilla.redhat.com/show_bug.cgi?id=2373363"}, "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"}, "details": ["In the Linux kernel, the following vulnerability has been resolved:\norangefs: Do not truncate file size\n'len' is used to store the result of i_size_read(), so making 'len'\na size_t results in truncation to 4GiB on 32-bit systems."], "name": "CVE-2025-38065", "package_state": [{"cpe": "cpe:/o:redhat:enterprise_linux:10", "fix_state": "Not affected", "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": "Not affected", "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"}], "public_date": "2025-06-18T00:00:00Z", "references": ["https://www.cve.org/CVERecord?id=CVE-2025-38065\nhttps://nvd.nist.gov/vuln/detail/CVE-2025-38065\nhttps://lore.kernel.org/linux-cve-announce/2025061836-CVE-2025-38065-e91a@gregkh/T"], "threat_severity": "Moderate"}

{"created": "2025-06-24T09:44:11.503636+00:00", "updated": "2025-06-24T09:44:11.503695+00:00", "vendors": ["linux", "linux$PRODUCT$linux_kernel"]}