{ "dataType": "CVE_RECORD", "dataVersion": "5.2", "cveMetadata": { "cveId": "CVE-2025-22080", "assignerOrgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "state": "PUBLISHED", "assignerShortName": "Linux", "dateReserved": "2024-12-29T08:45:45.815Z", "datePublished": "2025-04-16T14:12:29.886Z", "dateUpdated": "2026-08-05T11:56:35.647Z" }, "containers": { "cna": { "providerMetadata": { "orgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "shortName": "Linux", "dateUpdated": "2026-08-05T11:56:35.647Z" }, "descriptions": [ { "lang": "en", "value": "In the Linux kernel, the following vulnerability has been resolved:\n\nfs/ntfs3: Prevent integer overflow in hdr_first_de()\n\nThe \"de_off\" and \"used\" variables come from the disk so they both need to\ncheck. The problem is that on 32bit systems if they're both greater than\nUINT_MAX - 16 then the check does work as intended because of an integer\noverflow." } ], "metrics": [ { "cvssV3_1": { "version": "3.1", "vectorString": "CVSS:3.1/AV:L/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H", "baseScore": 8.4, "baseSeverity": "HIGH" }, "scenarios": [ { "lang": "en", "value": "AV:L - The vulnerable code is reached only by presenting a crafted NTFS volume to the local kernel as a block device — a USB stick on an automounting kiosk/NAS/infotainment unit, or a loop/NBD-backed image mounted via udisks2 — driving mount(2) and the subsequent index walks in fs/ntfs3/index.c. No network protocol handler is involved, and physical access is not strictly required since loop and network-block-backed images work equally well.\nAC:L - Every input to the wrap — hdr->de_off, hdr->used, hdr->total, the entry size fields, and the attribute-list layout that steers which header escapes index_hdr_check() — is an attacker-chosen byte in the image, so the corruption is deterministic with no race to win and no dependency on kernel memory layout the attacker cannot influence. The 32-bit size_t requirement is a property of the target the attacker selects, and ntfs3 automounting removable NTFS media on 32-bit ARM NAS boxes, media players, and embedded appliances is the driver's canonical deployment rather than a rare configuration.\nPR:N - The attacker needs no account or credential on the target — they only supply the malicious filesystem image, which is then mounted by root, by an automount daemon such as udisks2/systemd, or by a container/VM image-handling service acting on the attacker's data. Every privileged operation along the path is performed by the victim system on the attacker's behalf; where a local account does exist, desktop polkit loop-mount brokering provides the same reach at even lower cost.\nUI:N - On kiosks, NAS appliances, and infotainment systems that automount removable media, inserting the device triggers the mount with no human participation, and the index code runs unattended during mount itself via ntfs_security_init()'s indx_init()/indx_find() on the $SDH/$SII trees rather than waiting for a subsequent file access. In the loop-device scenario the attacker performs the mount themselves, so no separate victim action is required either.\nS:U - The wrapped pointer arithmetic, out-of-bounds reads, and memmove/memcpy writes all occur in kernel heap memory within the same kernel security authority that hosts the vulnerable ntfs3 code. No VM, IOMMU, hypervisor, or sandbox boundary is crossed.\nC:H - The wrapped pointer makes hdr_first_de() return an NTFS_DE outside the index buffer, and because hdr_next_de()'s bound check wraps identically with used near UINT_MAX, the entry walk proceeds past the allocation reading adjacent kernel heap as entry headers. Those bytes are consumed as file names, key_size, and MFT references and handed to userspace through ntfs_dir_emit()/dir_emit() during readdir, and steer de_get_vbn()-driven follow-on reads, making adjacent kernel memory directly observable.\nI:H - The same out-of-bounds entry pointer is passed to the mutation paths — hdr_insert_de() performs memmove(Add2Ptr(before, de_size), before, used - off) and memcpy(before, de, de_size) through it, hdr_delete_de() memmoves through it, and indx_delete_entry() applies le16_sub_cpu()/le32_sub_cpu() to fields at that address — yielding an out-of-bounds write of attacker-chosen bytes into kernel heap adjacent to the MFT-record or index-block allocation. Controlled heap overwrite of that form is a usable memory-corruption primitive for control-flow hijack, and the corrupted headers are additionally written back to disk by indx_write().\nA:H - Dereferencing and walking a pointer built from wrapped 32-bit arithmetic reads and writes past the kmalloc'd index buffer, producing slab corruption and oops/panic (KASAN-class out-of-bounds), and the resulting nonsensical index geometry drives _ntfs_bad_inode()/-EINVAL error paths across the mounted volume. The fault occurs during mount or the first directory operation and can be reproduced on every mount attempt of the crafted image." } ] } ], "affected": [ { "product": "Linux", "vendor": "Linux", "defaultStatus": "unaffected", "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git", "programFiles": [ "fs/ntfs3/ntfs.h" ], "versions": [ { "version": "60ce8dfde03558bfc290cd915c60fa243ba2ae84", "lessThan": "f6d44b1aa46d317e52c21fb9314cfb20dd69e7b0", "status": "affected", "versionType": "git" }, { "version": "60ce8dfde03558bfc290cd915c60fa243ba2ae84", "lessThan": "201a2bdda13b619c4927700ffe47d387a30ced50", "status": "affected", "versionType": "git" }, { "version": "60ce8dfde03558bfc290cd915c60fa243ba2ae84", "lessThan": "85615aa442830027923fc690390fa74d17b36ae1", "status": "affected", "versionType": "git" }, { "version": "60ce8dfde03558bfc290cd915c60fa243ba2ae84", "lessThan": "b9982065b82b4177ba3a7a72ce18c84921f7494d", "status": "affected", "versionType": "git" }, { "version": "60ce8dfde03558bfc290cd915c60fa243ba2ae84", "lessThan": "6bb81b94f7a9cba6bde9a905cef52a65317a8b04", "status": "affected", "versionType": "git" } ] }, { "product": "Linux", "vendor": "Linux", "defaultStatus": "affected", "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git", "programFiles": [ "fs/ntfs3/ntfs.h" ], "versions": [ { "version": "6.2", "status": "affected" }, { "version": "0", "lessThan": "6.2", "status": "unaffected", "versionType": "semver" }, { "version": "6.6.87", "lessThanOrEqual": "6.6.*", "status": "unaffected", "versionType": "semver" }, { "version": "6.12.23", "lessThanOrEqual": "6.12.*", "status": "unaffected", "versionType": "semver" }, { "version": "6.13.11", "lessThanOrEqual": "6.13.*", "status": "unaffected", "versionType": "semver" }, { "version": "6.14.2", "lessThanOrEqual": "6.14.*", "status": "unaffected", "versionType": "semver" }, { "version": "6.15", "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": "6.2", "versionEndExcluding": "6.6.87" }, { "vulnerable": true, "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "versionStartIncluding": "6.2", "versionEndExcluding": "6.12.23" }, { "vulnerable": true, "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "versionStartIncluding": "6.2", "versionEndExcluding": "6.13.11" }, { "vulnerable": true, "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "versionStartIncluding": "6.2", "versionEndExcluding": "6.14.2" }, { "vulnerable": true, "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "versionStartIncluding": "6.2", "versionEndExcluding": "6.15" } ] } ] } ], "references": [ { "url": "https://git.kernel.org/stable/c/f6d44b1aa46d317e52c21fb9314cfb20dd69e7b0" }, { "url": "https://git.kernel.org/stable/c/201a2bdda13b619c4927700ffe47d387a30ced50" }, { "url": "https://git.kernel.org/stable/c/85615aa442830027923fc690390fa74d17b36ae1" }, { "url": "https://git.kernel.org/stable/c/b9982065b82b4177ba3a7a72ce18c84921f7494d" }, { "url": "https://git.kernel.org/stable/c/6bb81b94f7a9cba6bde9a905cef52a65317a8b04" } ], "title": "fs/ntfs3: Prevent integer overflow in hdr_first_de()", "x_generator": { "engine": "bippy-1.2.0" } }, "adp": [ { "problemTypes": [ { "descriptions": [ { "type": "CWE", "cweId": "CWE-190", "lang": "en", "description": "CWE-190 Integer Overflow or Wraparound" } ] } ], "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": { "timestamp": "2025-10-01T16:15:41.224860Z", "id": "CVE-2025-22080", "options": [ { "Exploitation": "none" }, { "Automatable": "no" }, { "Technical Impact": "partial" } ], "role": "CISA Coordinator", "version": "2.0.3" } } } ], "title": "CISA ADP Vulnrichment", "providerMetadata": { "orgId": "134c704f-9b21-4f2e-91b3-4a467353bcc0", "shortName": "CISA-ADP", "dateUpdated": "2025-10-01T16:15:44.922Z" } } ] } }