195 lines
9.2 KiB
JSON
195 lines
9.2 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-2026-98007",
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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": "2026-09-25T10:19:56.068Z",
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"datePublished": "2026-09-25T10:23:32.939Z",
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"dateUpdated": "2026-10-19T09:12:12.779Z"
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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": "2026-10-19T09:12:12.779Z"
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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\nbpf: Reject non-scalar bpf_loop iteration counts\n\nbpf_loop() declares its nr_loops argument as ARG_ANYTHING. Privileged\nprograms may pass pointer values to such arguments, so check_func_arg()\nlets a pointer-valued R1 reach the helper-specific checks.\n\nSince commit bb124da69c47 (\"bpf: keep track of max number of bpf_loop\ncallback iterations\"), the verifier marks R1 precise and reads its upper\nbound to limit callback simulation. Precision backtracking only accepts\nscalar registers, so passing a pointer instead triggers the \"backtracking\nmisuse\" verifier warning. Kernels with panic_on_warn enabled subsequently\npanic.\n\nIntroduce ARG_SCALAR for helper arguments that only accept scalar values\nand use it for bpf_loop() nr_loops. Generic helper argument validation then\nrejects pointers before loop inlining and precision processing."
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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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"include/linux/bpf.h",
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"kernel/bpf/bpf_iter.c",
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"kernel/bpf/verifier.c"
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],
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"versions": [
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{
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"version": "bfc5c19b4b48840627af0d0f1c8f4461b276e508",
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"lessThan": "2ff38b3552af53238aee6c877ae64cc798d46fce",
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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": "bb124da69c47dd98d69361ec13244ece50bec63e",
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"lessThan": "656d40d1ca228ee21a9b3280432479fc9eae75ab",
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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": "bb124da69c47dd98d69361ec13244ece50bec63e",
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"lessThan": "e2e1161e03fecff6d2229a81b024337144bfcd97",
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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": "bb124da69c47dd98d69361ec13244ece50bec63e",
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"lessThan": "f8ae8275c721334ee50fafdd986fb83294eb941a",
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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": "bb124da69c47dd98d69361ec13244ece50bec63e",
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"lessThan": "c3fd8e5fd100f122bad503bdc0e9277219533253",
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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": "6.6.15",
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"lessThan": "6.6.158",
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"status": "affected",
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"versionType": "semver"
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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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"include/linux/bpf.h",
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"kernel/bpf/bpf_iter.c",
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"kernel/bpf/verifier.c"
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],
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"versions": [
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{
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"version": "6.7",
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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": "6.7",
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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": "6.6.158",
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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": "6.12.111",
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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": "6.18.53",
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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": "7.2.7",
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"lessThanOrEqual": "7.2.*",
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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": "7.3",
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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": "6.6.15",
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"versionEndExcluding": "6.6.158"
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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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"versionStartIncluding": "6.7",
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"versionEndExcluding": "6.12.111"
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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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"versionStartIncluding": "6.7",
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"versionEndExcluding": "6.18.53"
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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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"versionStartIncluding": "6.7",
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"versionEndExcluding": "7.2.7"
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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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"versionStartIncluding": "6.7",
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"versionEndExcluding": "7.3"
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}
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]
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}
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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/2ff38b3552af53238aee6c877ae64cc798d46fce"
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},
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{
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"url": "https://git.kernel.org/stable/c/656d40d1ca228ee21a9b3280432479fc9eae75ab"
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},
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{
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"url": "https://git.kernel.org/stable/c/e2e1161e03fecff6d2229a81b024337144bfcd97"
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},
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{
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"url": "https://git.kernel.org/stable/c/f8ae8275c721334ee50fafdd986fb83294eb941a"
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},
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{
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"url": "https://git.kernel.org/stable/c/c3fd8e5fd100f122bad503bdc0e9277219533253"
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}
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],
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"title": "bpf: Reject non-scalar bpf_loop iteration counts",
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"x_generator": {
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"engine": "bippy-1.2.0"
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}
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}
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}
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} |