243 lines
12 KiB
JSON
243 lines
12 KiB
JSON
{
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"dataType": "CVE_RECORD",
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"dataVersion": "5.2",
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"cveMetadata": {
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"cveId": "CVE-2026-46062",
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"assignerOrgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
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"state": "PUBLISHED",
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"assignerShortName": "Linux",
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"dateReserved": "2026-05-13T15:03:33.095Z",
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"datePublished": "2026-05-27T12:57:24.416Z",
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"dateUpdated": "2026-08-05T12:29:26.689Z"
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},
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"containers": {
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"cna": {
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"providerMetadata": {
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"orgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
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"shortName": "Linux",
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"dateUpdated": "2026-08-05T12:29:26.689Z"
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},
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"descriptions": [
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{
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"lang": "en",
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"value": "In the Linux kernel, the following vulnerability has been resolved:\n\nntfs3: fix integer overflow in run_unpack() volume boundary check\n\nThe volume boundary check `lcn + len > sbi->used.bitmap.nbits` uses raw\naddition which can wrap around for large lcn and len values, bypassing\nthe validation. Use check_add_overflow() as is already done for the\nadjacent prev_lcn + dlcn and vcn64 + len checks added by commit\n3ac37e100385 (\"ntfs3: Fix integer overflow in run_unpack()\").\n\nFound by fuzzing with a source-patched harness (LibAFL + QEMU)."
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}
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],
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"metrics": [
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{
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"cvssV3_1": {
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"version": "3.1",
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"vectorString": "CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H",
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"baseScore": 7.8,
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"baseSeverity": "HIGH"
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},
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"scenarios": [
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{
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"lang": "en",
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"value": "AV:L - The vulnerability is triggered by parsing a crafted NTFS data-run during mount/file access; NTFS3 is a local block-backed filesystem (not network-reachable), so the attacker supplies a malicious image/removable media that is mounted locally.\nAC:L - The integer overflow is deterministically controlled by the on-disk runlist values the attacker crafts; no race or attacker-uncontrollable condition is involved.\nPR:N - The attacker only needs to craft the malicious filesystem image and requires no privileges on the target; a victim with mount capability performs the mount (captured under UI).\nUI:R - Exploitation requires a victim to mount/access the attacker-supplied malicious NTFS volume (e.g., inserting removable media or mounting a provided image).\nS:U - The out-of-bounds access stays within the kernel's own security authority; there is no cross-boundary escape (no VM/IOMMU boundary crossed).\nC:H - The bypassed boundary check allows out-of-volume LCN ranges, enabling reads of arbitrary on-disk data bypassing access checks and out-of-bounds memory reads, per the sibling fix's own impact description.\nI:H - The same out-of-bounds cluster ranges permit destruction of arbitrary on-disk data and corruption of in-memory bitmap/free-space accounting, giving an attacker-controlled write primitive.\nA:H - Out-of-bounds cluster/bitmap access from a bypassed boundary check readily causes kernel oops/panic or filesystem corruption, denying service."
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}
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]
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}
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],
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"affected": [
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{
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"product": "Linux",
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"vendor": "Linux",
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"defaultStatus": "unaffected",
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"repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
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"programFiles": [
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"fs/ntfs3/run.c"
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],
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"versions": [
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{
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"version": "82cae269cfa953032fbb8980a7d554d60fb00b17",
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"lessThan": "424858f9a048057bb8f834bfe03d18f5e477e747",
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"status": "affected",
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"versionType": "git"
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},
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{
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"version": "82cae269cfa953032fbb8980a7d554d60fb00b17",
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"lessThan": "e73cd5aed6b15e55c1c47577bdb473b5e88d6a69",
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"status": "affected",
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"versionType": "git"
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},
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{
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"version": "82cae269cfa953032fbb8980a7d554d60fb00b17",
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"lessThan": "a954061b334ec67c79ae9d0cadd83fa521396487",
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"status": "affected",
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"versionType": "git"
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},
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{
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"version": "82cae269cfa953032fbb8980a7d554d60fb00b17",
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"lessThan": "60dab3e2931f3d792438a77a6cb0cb731c43300b",
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"status": "affected",
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"versionType": "git"
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},
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{
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"version": "82cae269cfa953032fbb8980a7d554d60fb00b17",
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"lessThan": "f1af27cec07a9fd0847166bdb23c99e86b05bfdc",
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"status": "affected",
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"versionType": "git"
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},
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{
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"version": "82cae269cfa953032fbb8980a7d554d60fb00b17",
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"lessThan": "6175d09c23bec4b60860ee9a0170308ff4b56e10",
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"status": "affected",
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"versionType": "git"
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},
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{
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"version": "82cae269cfa953032fbb8980a7d554d60fb00b17",
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"lessThan": "984a415f019536ea2d24de9010744e5302a9a948",
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"status": "affected",
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"versionType": "git"
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}
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]
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},
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{
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"product": "Linux",
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"vendor": "Linux",
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"defaultStatus": "affected",
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"repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
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"programFiles": [
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"fs/ntfs3/run.c"
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],
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"versions": [
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{
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"version": "5.15",
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"status": "affected"
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},
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{
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"version": "0",
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"lessThan": "5.15",
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"status": "unaffected",
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"versionType": "semver"
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},
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{
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"version": "5.15.209",
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"lessThanOrEqual": "5.15.*",
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"status": "unaffected",
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"versionType": "semver"
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},
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{
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"version": "6.1.175",
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"lessThanOrEqual": "6.1.*",
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"status": "unaffected",
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"versionType": "semver"
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},
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{
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"version": "6.6.140",
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"lessThanOrEqual": "6.6.*",
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"status": "unaffected",
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"versionType": "semver"
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},
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{
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"version": "6.12.86",
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"lessThanOrEqual": "6.12.*",
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"status": "unaffected",
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"versionType": "semver"
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},
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{
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"version": "6.18.27",
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"lessThanOrEqual": "6.18.*",
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"status": "unaffected",
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"versionType": "semver"
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},
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{
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"version": "7.0.4",
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"lessThanOrEqual": "7.0.*",
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"status": "unaffected",
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"versionType": "semver"
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},
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{
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"version": "7.1",
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"lessThanOrEqual": "*",
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"status": "unaffected",
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"versionType": "original_commit_for_fix"
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}
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]
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}
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],
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"cpeApplicability": [
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{
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"nodes": [
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{
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"operator": "OR",
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"negate": false,
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"cpeMatch": [
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{
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"vulnerable": true,
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"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
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"versionStartIncluding": "5.15",
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"versionEndExcluding": "5.15.209"
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},
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{
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"vulnerable": true,
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"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
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}
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]
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],
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"references": [
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{
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"url": "https://git.kernel.org/stable/c/424858f9a048057bb8f834bfe03d18f5e477e747"
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},
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{
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"url": "https://git.kernel.org/stable/c/e73cd5aed6b15e55c1c47577bdb473b5e88d6a69"
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},
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{
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"url": "https://git.kernel.org/stable/c/a954061b334ec67c79ae9d0cadd83fa521396487"
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},
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{
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"url": "https://git.kernel.org/stable/c/60dab3e2931f3d792438a77a6cb0cb731c43300b"
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},
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{
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"url": "https://git.kernel.org/stable/c/f1af27cec07a9fd0847166bdb23c99e86b05bfdc"
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},
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{
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"url": "https://git.kernel.org/stable/c/6175d09c23bec4b60860ee9a0170308ff4b56e10"
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},
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{
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"url": "https://git.kernel.org/stable/c/984a415f019536ea2d24de9010744e5302a9a948"
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}
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],
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"title": "ntfs3: fix integer overflow in run_unpack() volume boundary check",
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"x_generator": {
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