CVE-2026-72192

{"dataType": "CVE_RECORD", "dataVersion": "5.2", "cveMetadata": {"cveId": "CVE-2026-72192", "assignerOrgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "state": "PUBLISHED", "assignerShortName": "Linux", "dateReserved": "2026-08-09T03:40:39.911Z", "datePublished": "2026-08-15T05:53:52.634Z", "dateUpdated": "2026-10-16T18:45:00.935Z"}, "containers": {"cna": {"providerMetadata": {"orgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "shortName": "Linux", "dateUpdated": "2026-08-17T05:41:19.697Z"}, "descriptions": [{"lang": "en", "value": "In the Linux kernel, the following vulnerability has been resolved:\n\nntfs3: bound to_move in indx_insert_into_root before hdr_insert_head\n\nindx_insert_into_root() promotes a full resident $INDEX_ROOT into\n$INDEX_ALLOCATION and copies all non-last resident root entries into\na newly allocated INDEX_BUFFER via hdr_insert_head(). The source\nbyte count 'to_move' is summed from the on-disk resident entry sizes\nand is independent of the destination buffer size, which comes from\nroot->index_block_size (via indx->index_bits).\n\nA crafted NTFS image that keeps a valid, full resident root but\nshrinks root->index_block_size down to 512 after the root has been\npopulated makes hdr_insert_head() memcpy attacker-controlled resident\nentry bytes past the end of the kmalloc(1u << indx->index_bits)\nallocation returned by indx_new(). For a 512-byte destination and a\nresident root whose non-last entries total 560 bytes, the memcpy\noverruns by 120 bytes and a following memmove extends the highest\nwritten offset to 136 bytes past the allocation. The overflow bytes\nare a direct copy of on-disk entries (via kmemdup), so they are\nfully attacker-controlled.\n\nThe write is reachable from unprivileged open(O_CREAT) on a mounted\ncrafted NTFS image: a single sufficiently long create in a directory\nwhose resident root is already full forces root promotion and\ntriggers the copy.\n\nThis is a controlled out-of-bounds write of 120-136 bytes past a\nkmalloc(index_block_size) allocation, with attacker-controlled\ncontent. It is a bounded adjacent-heap corruption primitive; it is\nnot an arbitrary-address write. Successful exploitation into a named\nvictim object depends on the surrounding slab layout.\n\nReject the copy at the sink. The destination's INDEX_HDR already\nreports hdr_total (the payload capacity of the new buffer) and\nhdr_used (the bytes already consumed by the terminal END entry\ninstalled by indx_new()); require that to_move fits in the remaining\npayload before calling hdr_insert_head(). On mismatch, fail with\n-EINVAL and mark the filesystem as having a detected on-disk\ninconsistency, which is the same behaviour as the surrounding\nvalidation in this function."}], "metrics": [{"cvssV3_1": {"version": "3.1", "vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H", "baseScore": 9.8, "baseSeverity": "CRITICAL"}, "scenarios": [{"lang": "en", "value": "AV:N - ntfs3 registers export_operations; on NAS/hybrid servers exporting an NTFS volume via nfsd or ksmbd, a remote client's CREATE reaches vfs_create\u2192ntfs_create\u2192ntfs_create_inode\u2192indx_insert_entry\u2192indx_insert_into_root without any local syscall from the attacker.\nAC:L - The attacker fully controls on-disk $INDEX_ROOT layout (resident entry sizes and index_block_size); a single create in a full resident directory deterministically forces root promotion and the unchecked hdr_insert_head() copy, with no races or victim-specific heap layout required to trigger the overflow.\nPR:N - Exploitation needs only write access to create a file in the target directory on an NFS/SMB-exported NTFS share (including guest/anonymous write), or supplying removable media later mounted by the host; no init-namespace root or CAP_SYS_ADMIN is required on the trigger path.\nUI:N - Once an administrator has mounted and optionally exported the NTFS volume\u2014or desktop/kiosk automount has attached removable media\u2014the attacker issues open(O_CREAT)/touch/mkdir directly; no further victim clicks, file opens, or cooperative actions beyond that standing configuration are required.\nS:U - Impact is attacker-controlled kernel heap corruption and panic within the host kernel's security authority; this is standard local or network filesystem exploitation, not a VM escape, IOMMU bypass, or cross-scope sandbox breakout.\nC:H - hdr_insert_head() memcpy/memmove writes 120-136 attacker-controlled bytes past the kzalloc(1u<<index_bits) INDEX_BUFFER allocation; adjacent-heap corruption can disclose or influence neighboring slab objects and is scored as arbitrary-read potential under memory-corruption guidance.\nI:H - The overflow is a bounded but fully attacker-controlled out-of-bounds write past a kmalloc allocation during directory index promotion; such heap corruption is exploitable for metadata/control-structure overwrite and kernel code execution, not merely a benign crash.\nA:H - Corrupting kmalloc-allocated index buffers via unchecked memcpy/memmove can trigger KASAN faults, kernel oops, or panic; sibling ntfs3 index-insertion overflows in the same call chain are confirmed crash/panic primitives, scoring Availability High."}]}], "affected": [{"product": "Linux", "vendor": "Linux", "defaultStatus": "unaffected", "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git", "programFiles": ["fs/ntfs3/index.c"], "versions": [{"version": "82cae269cfa953032fbb8980a7d554d60fb00b17", "lessThan": "0af83b8155cc848e9f5d2c36e20a70d024214649", "status": "affected", "versionType": "git"}, {"version": "82cae269cfa953032fbb8980a7d554d60fb00b17", "lessThan": "cb3161deebcaf8d36d3115abf452c633f2180fc1", "status": "affected", "versionType": "git"}, {"version": "82cae269cfa953032fbb8980a7d554d60fb00b17", "lessThan": "53c5f3b2da3774b41534728aba295c098c9efa19", "status": "affected", "versionType": "git"}, {"version": "82cae269cfa953032fbb8980a7d554d60fb00b17", "lessThan": "194b00c99ba971fa7cf6acd747a36032c6de54eb", "status": "affected", "versionType": "git"}, {"version": "82cae269cfa953032fbb8980a7d554d60fb00b17", "lessThan": "aaa1f956c0fc41089a4a534da7df91552a08a47c", "status": "affected", "versionType": "git"}, {"version": "82cae269cfa953032fbb8980a7d554d60fb00b17", "lessThan": "d240f5f9d036b8180224954d9873f172b6be4dd8", "status": "affected", "versionType": "git"}, {"version": "82cae269cfa953032fbb8980a7d554d60fb00b17", "lessThan": "9b6926ac9c970ae0b2c2fe6289b16e9aa10b6a67", "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/index.c"], "versions": [{"version": "5.15", "status": "affected"}, {"version": "0", "lessThan": "5.15", "status": "unaffected", "versionType": "semver"}, {"version": "5.15.212", "lessThanOrEqual": "5.15.*", "status": "unaffected", "versionType": "semver"}, {"version": "6.1.178", "lessThanOrEqual": "6.1.*", "status": "unaffected", "versionType": "semver"}, {"version": "6.6.145", "lessThanOrEqual": "6.6.*", "status": "unaffected", "versionType": "semver"}, {"version": "6.12.97", "lessThanOrEqual": "6.12.*", "status": "unaffected", "versionType": "semver"}, {"version": "6.18.40", "lessThanOrEqual": "6.18.*", "status": "unaffected", "versionType": "semver"}, {"version": "7.1.5", "lessThanOrEqual": "7.1.*", "status": "unaffected", "versionType": "semver"}, {"version": "7.2", "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": "5.15", "versionEndExcluding": "5.15.212"}, {"vulnerable": true, "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "versionStartIncluding": "5.15", "versionEndExcluding": "6.1.178"}, {"vulnerable": true, "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "versionStartIncluding": "5.15", "versionEndExcluding": "6.6.145"}, {"vulnerable": true, "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "versionStartIncluding": "5.15", "versionEndExcluding": "6.12.97"}, {"vulnerable": true, "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "versionStartIncluding": "5.15", "versionEndExcluding": "6.18.40"}, {"vulnerable": true, "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "versionStartIncluding": "5.15", "versionEndExcluding": "7.1.5"}, {"vulnerable": true, "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "versionStartIncluding": "5.15", "versionEndExcluding": "7.2"}]}]}], "references": [{"url": "https://git.kernel.org/stable/c/0af83b8155cc848e9f5d2c36e20a70d024214649"}, {"url": "https://git.kernel.org/stable/c/cb3161deebcaf8d36d3115abf452c633f2180fc1"}, {"url": "https://git.kernel.org/stable/c/53c5f3b2da3774b41534728aba295c098c9efa19"}, {"url": "https://git.kernel.org/stable/c/194b00c99ba971fa7cf6acd747a36032c6de54eb"}, {"url": "https://git.kernel.org/stable/c/aaa1f956c0fc41089a4a534da7df91552a08a47c"}, {"url": "https://git.kernel.org/stable/c/d240f5f9d036b8180224954d9873f172b6be4dd8"}, {"url": "https://git.kernel.org/stable/c/9b6926ac9c970ae0b2c2fe6289b16e9aa10b6a67"}], "title": "ntfs3: bound to_move in indx_insert_into_root before hdr_insert_head", "x_generator": {"engine": "bippy-1.2.0"}}, "adp": [{"metrics": [{"other": {"type": "ssvc", "content": {"id": "CVE-2026-72192", "role": "CISA Coordinator", "options": [{"Exploitation": "none"}, {"Automatable": "yes"}, {"Technical Impact": "total"}], "version": "2.0.3", "timestamp": "2026-10-16T18:43:32.724211Z"}}}], "title": "CISA ADP Vulnrichment", "providerMetadata": {"orgId": "134c704f-9b21-4f2e-91b3-4a467353bcc0", "shortName": "CISA-ADP", "dateUpdated": "2026-10-16T18:45:00.935Z"}}]}}

{"dataType": "CVE_RECORD", "containers": {"adp": [{"title": "CISA ADP Vulnrichment", "metrics": [{"other": {"type": "ssvc", "content": {"id": "CVE-2026-72192", "role": "CISA Coordinator", "options": [{"Exploitation": "none"}, {"Automatable": "yes"}, {"Technical Impact": "total"}], "version": "2.0.3", "timestamp": "2026-10-16T18:43:32.724211Z"}}}], "providerMetadata": {"orgId": "134c704f-9b21-4f2e-91b3-4a467353bcc0", "shortName": "CISA-ADP", "dateUpdated": "2026-10-16T18:43:33.362Z"}}], "cna": {"title": "ntfs3: bound to_move in indx_insert_into_root before hdr_insert_head", "metrics": [{"cvssV3_1": {"version": "3.1", "baseScore": 9.8, "baseSeverity": "CRITICAL", "vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H"}, "scenarios": [{"lang": "en", "value": "AV:N - ntfs3 registers export_operations; on NAS/hybrid servers exporting an NTFS volume via nfsd or ksmbd, a remote client's CREATE reaches vfs_create\u2192ntfs_create\u2192ntfs_create_inode\u2192indx_insert_entry\u2192indx_insert_into_root without any local syscall from the attacker.\nAC:L - The attacker fully controls on-disk $INDEX_ROOT layout (resident entry sizes and index_block_size); a single create in a full resident directory deterministically forces root promotion and the unchecked hdr_insert_head() copy, with no races or victim-specific heap layout required to trigger the overflow.\nPR:N - Exploitation needs only write access to create a file in the target directory on an NFS/SMB-exported NTFS share (including guest/anonymous write), or supplying removable media later mounted by the host; no init-namespace root or CAP_SYS_ADMIN is required on the trigger path.\nUI:N - Once an administrator has mounted and optionally exported the NTFS volume\u2014or desktop/kiosk automount has attached removable media\u2014the attacker issues open(O_CREAT)/touch/mkdir directly; no further victim clicks, file opens, or cooperative actions beyond that standing configuration are required.\nS:U - Impact is attacker-controlled kernel heap corruption and panic within the host kernel's security authority; this is standard local or network filesystem exploitation, not a VM escape, IOMMU bypass, or cross-scope sandbox breakout.\nC:H - hdr_insert_head() memcpy/memmove writes 120-136 attacker-controlled bytes past the kzalloc(1u<<index_bits) INDEX_BUFFER allocation; adjacent-heap corruption can disclose or influence neighboring slab objects and is scored as arbitrary-read potential under memory-corruption guidance.\nI:H - The overflow is a bounded but fully attacker-controlled out-of-bounds write past a kmalloc allocation during directory index promotion; such heap corruption is exploitable for metadata/control-structure overwrite and kernel code execution, not merely a benign crash.\nA:H - Corrupting kmalloc-allocated index buffers via unchecked memcpy/memmove can trigger KASAN faults, kernel oops, or panic; sibling ntfs3 index-insertion overflows in the same call chain are confirmed crash/panic primitives, scoring Availability High."}]}], "affected": [{"repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git", "vendor": "Linux", "product": "Linux", "versions": [{"status": "affected", "version": "82cae269cfa953032fbb8980a7d554d60fb00b17", "lessThan": "0af83b8155cc848e9f5d2c36e20a70d024214649", "versionType": "git"}, {"status": "affected", "version": "82cae269cfa953032fbb8980a7d554d60fb00b17", "lessThan": "cb3161deebcaf8d36d3115abf452c633f2180fc1", "versionType": "git"}, {"status": "affected", "version": "82cae269cfa953032fbb8980a7d554d60fb00b17", "lessThan": "53c5f3b2da3774b41534728aba295c098c9efa19", "versionType": "git"}, {"status": "affected", "version": "82cae269cfa953032fbb8980a7d554d60fb00b17", "lessThan": "194b00c99ba971fa7cf6acd747a36032c6de54eb", "versionType": "git"}, {"status": "affected", "version": "82cae269cfa953032fbb8980a7d554d60fb00b17", "lessThan": "aaa1f956c0fc41089a4a534da7df91552a08a47c", "versionType": "git"}, {"status": "affected", "version": "82cae269cfa953032fbb8980a7d554d60fb00b17", "lessThan": "d240f5f9d036b8180224954d9873f172b6be4dd8", "versionType": "git"}, {"status": "affected", "version": "82cae269cfa953032fbb8980a7d554d60fb00b17", "lessThan": "9b6926ac9c970ae0b2c2fe6289b16e9aa10b6a67", "versionType": "git"}], "programFiles": ["fs/ntfs3/index.c"], "defaultStatus": "unaffected"}, {"repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git", "vendor": "Linux", "product": "Linux", "versions": [{"status": "affected", "version": "5.15"}, {"status": "unaffected", "version": "0", "lessThan": "5.15", "versionType": "semver"}, {"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": ["fs/ntfs3/index.c"], "defaultStatus": "affected"}], "references": [{"url": "https://git.kernel.org/stable/c/0af83b8155cc848e9f5d2c36e20a70d024214649"}, {"url": "https://git.kernel.org/stable/c/cb3161deebcaf8d36d3115abf452c633f2180fc1"}, {"url": "https://git.kernel.org/stable/c/53c5f3b2da3774b41534728aba295c098c9efa19"}, {"url": "https://git.kernel.org/stable/c/194b00c99ba971fa7cf6acd747a36032c6de54eb"}, {"url": "https://git.kernel.org/stable/c/aaa1f956c0fc41089a4a534da7df91552a08a47c"}, {"url": "https://git.kernel.org/stable/c/d240f5f9d036b8180224954d9873f172b6be4dd8"}, {"url": "https://git.kernel.org/stable/c/9b6926ac9c970ae0b2c2fe6289b16e9aa10b6a67"}], "x_generator": {"engine": "bippy-1.2.0"}, "descriptions": [{"lang": "en", "value": "In the Linux kernel, the following vulnerability has been resolved:\n\nntfs3: bound to_move in indx_insert_into_root before hdr_insert_head\n\nindx_insert_into_root() promotes a full resident $INDEX_ROOT into\n$INDEX_ALLOCATION and copies all non-last resident root entries into\na newly allocated INDEX_BUFFER via hdr_insert_head(). The source\nbyte count 'to_move' is summed from the on-disk resident entry sizes\nand is independent of the destination buffer size, which comes from\nroot->index_block_size (via indx->index_bits).\n\nA crafted NTFS image that keeps a valid, full resident root but\nshrinks root->index_block_size down to 512 after the root has been\npopulated makes hdr_insert_head() memcpy attacker-controlled resident\nentry bytes past the end of the kmalloc(1u << indx->index_bits)\nallocation returned by indx_new(). For a 512-byte destination and a\nresident root whose non-last entries total 560 bytes, the memcpy\noverruns by 120 bytes and a following memmove extends the highest\nwritten offset to 136 bytes past the allocation. The overflow bytes\nare a direct copy of on-disk entries (via kmemdup), so they are\nfully attacker-controlled.\n\nThe write is reachable from unprivileged open(O_CREAT) on a mounted\ncrafted NTFS image: a single sufficiently long create in a directory\nwhose resident root is already full forces root promotion and\ntriggers the copy.\n\nThis is a controlled out-of-bounds write of 120-136 bytes past a\nkmalloc(index_block_size) allocation, with attacker-controlled\ncontent. It is a bounded adjacent-heap corruption primitive; it is\nnot an arbitrary-address write. Successful exploitation into a named\nvictim object depends on the surrounding slab layout.\n\nReject the copy at the sink. The destination's INDEX_HDR already\nreports hdr_total (the payload capacity of the new buffer) and\nhdr_used (the bytes already consumed by the terminal END entry\ninstalled by indx_new()); require that to_move fits in the remaining\npayload before calling hdr_insert_head(). On mismatch, fail with\n-EINVAL and mark the filesystem as having a detected on-disk\ninconsistency, which is the same behaviour as the surrounding\nvalidation in this function."}], "cpeApplicability": [{"nodes": [{"negate": false, "cpeMatch": [{"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "vulnerable": true, "versionEndExcluding": "5.15.212", "versionStartIncluding": "5.15"}, {"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "vulnerable": true, "versionEndExcluding": "6.1.178", "versionStartIncluding": "5.15"}, {"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "vulnerable": true, "versionEndExcluding": "6.6.145", "versionStartIncluding": "5.15"}, {"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "vulnerable": true, "versionEndExcluding": "6.12.97", "versionStartIncluding": "5.15"}, {"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "vulnerable": true, "versionEndExcluding": "6.18.40", "versionStartIncluding": "5.15"}, {"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "vulnerable": true, "versionEndExcluding": "7.1.5", "versionStartIncluding": "5.15"}, {"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "vulnerable": true, "versionEndExcluding": "7.2", "versionStartIncluding": "5.15"}], "operator": "OR"}]}], "providerMetadata": {"orgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "shortName": "Linux", "dateUpdated": "2026-08-17T05:41:19.697Z"}}}, "cveMetadata": {"cveId": "CVE-2026-72192", "state": "PUBLISHED", "dateUpdated": "2026-10-16T18:45:00.935Z", "dateReserved": "2026-08-09T03:40:39.911Z", "assignerOrgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "datePublished": "2026-08-15T05:53:52.634Z", "assignerShortName": "Linux"}, "dataVersion": "5.2"}

{"affected": [{"affectedData": [{"defaultStatus": "unaffected", "product": "Linux", "programFiles": ["fs/ntfs3/index.c"], "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git", "vendor": "Linux", "versions": [{"lessThan": "0af83b8155cc848e9f5d2c36e20a70d024214649", "status": "affected", "version": "82cae269cfa953032fbb8980a7d554d60fb00b17", "versionType": "git"}, {"lessThan": "cb3161deebcaf8d36d3115abf452c633f2180fc1", "status": "affected", "version": "82cae269cfa953032fbb8980a7d554d60fb00b17", "versionType": "git"}, {"lessThan": "53c5f3b2da3774b41534728aba295c098c9efa19", "status": "affected", "version": "82cae269cfa953032fbb8980a7d554d60fb00b17", "versionType": "git"}, {"lessThan": "194b00c99ba971fa7cf6acd747a36032c6de54eb", "status": "affected", "version": "82cae269cfa953032fbb8980a7d554d60fb00b17", "versionType": "git"}, {"lessThan": "aaa1f956c0fc41089a4a534da7df91552a08a47c", "status": "affected", "version": "82cae269cfa953032fbb8980a7d554d60fb00b17", "versionType": "git"}, {"lessThan": "d240f5f9d036b8180224954d9873f172b6be4dd8", "status": "affected", "version": "82cae269cfa953032fbb8980a7d554d60fb00b17", "versionType": "git"}, {"lessThan": "9b6926ac9c970ae0b2c2fe6289b16e9aa10b6a67", "status": "affected", "version": "82cae269cfa953032fbb8980a7d554d60fb00b17", "versionType": "git"}]}, {"defaultStatus": "affected", "product": "Linux", "programFiles": ["fs/ntfs3/index.c"], "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git", "vendor": "Linux", "versions": [{"status": "affected", "version": "5.15"}, {"lessThan": "5.15", "status": "unaffected", "version": "0", "versionType": "semver"}, {"lessThanOrEqual": "5.15.*", "status": "unaffected", "version": "5.15.212", "versionType": "semver"}, {"lessThanOrEqual": "6.1.*", "status": "unaffected", "version": "6.1.178", "versionType": "semver"}, {"lessThanOrEqual": "6.6.*", "status": "unaffected", "version": "6.6.145", "versionType": "semver"}, {"lessThanOrEqual": "6.12.*", "status": "unaffected", "version": "6.12.97", "versionType": "semver"}, {"lessThanOrEqual": "6.18.*", "status": "unaffected", "version": "6.18.40", "versionType": "semver"}, {"lessThanOrEqual": "7.1.*", "status": "unaffected", "version": "7.1.5", "versionType": "semver"}, {"lessThanOrEqual": "*", "status": "unaffected", "version": "7.2", "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\nntfs3: bound to_move in indx_insert_into_root before hdr_insert_head\n\nindx_insert_into_root() promotes a full resident $INDEX_ROOT into\n$INDEX_ALLOCATION and copies all non-last resident root entries into\na newly allocated INDEX_BUFFER via hdr_insert_head(). The source\nbyte count 'to_move' is summed from the on-disk resident entry sizes\nand is independent of the destination buffer size, which comes from\nroot->index_block_size (via indx->index_bits).\n\nA crafted NTFS image that keeps a valid, full resident root but\nshrinks root->index_block_size down to 512 after the root has been\npopulated makes hdr_insert_head() memcpy attacker-controlled resident\nentry bytes past the end of the kmalloc(1u << indx->index_bits)\nallocation returned by indx_new(). For a 512-byte destination and a\nresident root whose non-last entries total 560 bytes, the memcpy\noverruns by 120 bytes and a following memmove extends the highest\nwritten offset to 136 bytes past the allocation. The overflow bytes\nare a direct copy of on-disk entries (via kmemdup), so they are\nfully attacker-controlled.\n\nThe write is reachable from unprivileged open(O_CREAT) on a mounted\ncrafted NTFS image: a single sufficiently long create in a directory\nwhose resident root is already full forces root promotion and\ntriggers the copy.\n\nThis is a controlled out-of-bounds write of 120-136 bytes past a\nkmalloc(index_block_size) allocation, with attacker-controlled\ncontent. It is a bounded adjacent-heap corruption primitive; it is\nnot an arbitrary-address write. Successful exploitation into a named\nvictim object depends on the surrounding slab layout.\n\nReject the copy at the sink. The destination's INDEX_HDR already\nreports hdr_total (the payload capacity of the new buffer) and\nhdr_used (the bytes already consumed by the terminal END entry\ninstalled by indx_new()); require that to_move fits in the remaining\npayload before calling hdr_insert_head(). On mismatch, fail with\n-EINVAL and mark the filesystem as having a detected on-disk\ninconsistency, which is the same behaviour as the surrounding\nvalidation in this function."}], "id": "CVE-2026-72192", "lastModified": "2026-10-16T19:17:13.660", "metrics": {"cvssMetricV31": [{"cvssData": {"attackComplexity": "LOW", "attackVector": "NETWORK", "availabilityImpact": "HIGH", "baseScore": 9.8, "baseSeverity": "CRITICAL", "confidentialityImpact": "HIGH", "integrityImpact": "HIGH", "privilegesRequired": "NONE", "scope": "UNCHANGED", "userInteraction": "NONE", "vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H", "version": "3.1"}, "exploitabilityScore": 3.9, "impactScore": 5.9, "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "type": "Secondary"}], "ssvcV203": [{"source": "134c704f-9b21-4f2e-91b3-4a467353bcc0", "ssvcData": {"id": "CVE-2026-72192", "options": [{"exploitation": "none"}, {"automatable": "yes"}, {"technicalImpact": "total"}], "role": "CISA Coordinator", "timestamp": "2026-10-16T18:43:32.724211Z", "version": "2.0.3"}}]}, "published": "2026-08-15T06:21:37.663", "references": [{"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "url": "https://git.kernel.org/stable/c/0af83b8155cc848e9f5d2c36e20a70d024214649"}, {"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "url": "https://git.kernel.org/stable/c/194b00c99ba971fa7cf6acd747a36032c6de54eb"}, {"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "url": "https://git.kernel.org/stable/c/53c5f3b2da3774b41534728aba295c098c9efa19"}, {"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "url": "https://git.kernel.org/stable/c/9b6926ac9c970ae0b2c2fe6289b16e9aa10b6a67"}, {"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "url": "https://git.kernel.org/stable/c/aaa1f956c0fc41089a4a534da7df91552a08a47c"}, {"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "url": "https://git.kernel.org/stable/c/cb3161deebcaf8d36d3115abf452c633f2180fc1"}, {"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "url": "https://git.kernel.org/stable/c/d240f5f9d036b8180224954d9873f172b6be4dd8"}], "sourceIdentifier": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "vulnStatus": "Received"}

{"bugzilla": {"description": "kernel: ntfs3: bound to_move in indx_insert_into_root before hdr_insert_head", "id": "2516681", "url": "https://bugzilla.redhat.com/show_bug.cgi?id=2516681"}, "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-120", "details": ["A flaw was found in the Linux kernel's ntfs3 module. A local unprivileged attacker can exploit this vulnerability by mounting a specially crafted NTFS image and performing a file creation operation. This can lead to a controlled out-of-bounds write, a type of memory corruption. This memory corruption could potentially allow for further exploitation, such as arbitrary code execution or privilege escalation."], "name": "CVE-2026-72192", "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": "2026-08-15T00:00:00Z", "references": ["https://www.cve.org/CVERecord?id=CVE-2026-72192\nhttps://nvd.nist.gov/vuln/detail/CVE-2026-72192\nhttps://lore.kernel.org/linux-cve-announce/2026081542-CVE-2026-72192-e0b8@gregkh/T"], "threat_severity": "Moderate"}

{"affected": [{"configurations": [{"platform": null, "status": "affected", "versions": {"scheme": "code_commit", "value": "[82cae269cfa953032fbb8980a7d554d60fb00b17,0af83b8155cc848e9f5d2c36e20a70d024214649)"}}, {"platform": null, "status": "affected", "versions": {"scheme": "code_commit", "value": "[82cae269cfa953032fbb8980a7d554d60fb00b17,cb3161deebcaf8d36d3115abf452c633f2180fc1)"}}, {"platform": null, "status": "affected", "versions": {"scheme": "code_commit", "value": "[82cae269cfa953032fbb8980a7d554d60fb00b17,53c5f3b2da3774b41534728aba295c098c9efa19)"}}, {"platform": null, "status": "affected", "versions": {"scheme": "code_commit", "value": "[82cae269cfa953032fbb8980a7d554d60fb00b17,194b00c99ba971fa7cf6acd747a36032c6de54eb)"}}, {"platform": null, "status": "affected", "versions": {"scheme": "code_commit", "value": "[82cae269cfa953032fbb8980a7d554d60fb00b17,aaa1f956c0fc41089a4a534da7df91552a08a47c)"}}, {"platform": null, "status": "affected", "versions": {"scheme": "code_commit", "value": "[82cae269cfa953032fbb8980a7d554d60fb00b17,d240f5f9d036b8180224954d9873f172b6be4dd8)"}}, {"platform": null, "status": "affected", "versions": {"scheme": "code_commit", "value": "[82cae269cfa953032fbb8980a7d554d60fb00b17,9b6926ac9c970ae0b2c2fe6289b16e9aa10b6a67)"}}], "enrichment": {"confidence": 99.0, "confidence_source": "inferred", "scores": [{"score": 99.0, "source": "inferred"}, {"score": 100.0, "source": "matching"}]}, "original": {"product": "Linux", "source": "cna", "vendor": "Linux"}, "product": "linux_kernel", "vendor": "linux"}, {"configurations": [{"platform": null, "status": "affected", "versions": {"scheme": "generic", "value": "5.15"}}, {"platform": null, "status": "unaffected", "versions": {"scheme": "generic", "value": "[0,5.15)"}}, {"platform": null, "status": "unaffected", "versions": {"scheme": "semver", "value": "[5.15.212,5.16.0)"}}, {"platform": null, "status": "unaffected", "versions": {"scheme": "semver", "value": "[6.1.178,6.2.0)"}}, {"platform": null, "status": "unaffected", "versions": {"scheme": "semver", "value": "[6.6.145,6.7.0)"}}, {"platform": null, "status": "unaffected", "versions": {"scheme": "semver", "value": "[6.12.97,6.13.0)"}}, {"platform": null, "status": "unaffected", "versions": {"scheme": "semver", "value": "[6.18.40,6.19.0)"}}, {"platform": null, "status": "unaffected", "versions": {"scheme": "semver", "value": "[7.1.5,7.2.0)"}}, {"platform": null, "status": "unaffected", "versions": {"scheme": "generic", "value": "[7.2-rc1,*]"}}], "enrichment": {"confidence": 99.0, "confidence_source": "inferred", "scores": [{"score": 99.0, "source": "inferred"}, {"score": 100.0, "source": "matching"}]}, "original": {"product": "Linux", "source": "cna", "vendor": "Linux"}, "product": "linux_kernel", "vendor": "linux"}], "created": "2026-08-15T16:00:07.583055+00:00", "updated": "2026-08-22T10:45:03.936351+00:00", "vendors": ["linux", "linux$PRODUCT$linux_kernel"]}