180 lines
10 KiB
JSON
180 lines
10 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-2025-37887",
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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": "2025-04-16T04:51:23.963Z",
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"datePublished": "2025-05-09T06:45:49.492Z",
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"dateUpdated": "2026-08-05T11:58:04.745Z"
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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": "2026-08-05T11:58:04.745Z"
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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\npds_core: handle unsupported PDS_CORE_CMD_FW_CONTROL result\n\nIf the FW doesn't support the PDS_CORE_CMD_FW_CONTROL command\nthe driver might at the least print garbage and at the worst\ncrash when the user runs the \"devlink dev info\" devlink command.\n\nThis happens because the stack variable fw_list is not 0\ninitialized which results in fw_list.num_fw_slots being a\ngarbage value from the stack. Then the driver tries to access\nfw_list.fw_names[i] with i >= ARRAY_SIZE and runs off the end\nof the array.\n\nFix this by initializing the fw_list and by not failing\ncompletely if the devcmd fails because other useful information\nis printed via devlink dev info even if the devcmd fails."
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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:L/UI:N/S:U/C:H/I:N/A:H",
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"baseScore": 7.1,
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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 vulnerable code is reached through the devlink generic-netlink interface (`DEVLINK_CMD_INFO_GET`), which requires a local socket on the host. There is no remote or adjacent-network path to `pdsc_dl_info_get()`.\nAC:L - On an affected system (AMD Pensando DSC whose firmware rejects PDS_CORE_CMD_FW_CONTROL, or any device state producing -EIO) the bug fires deterministically on every `devlink dev info`, and the attacker can repeat it at will to resample stack contents. Nothing about the trigger depends on winning a race or on memory layout the attacker cannot re-roll.\nPR:L - `DEVLINK_CMD_INFO_GET` is registered with only `GENL_CMD_CAP_DO`/`GENL_CMD_CAP_DUMP` and no `GENL_ADMIN_PERM`, and `devlink_nl_pre_doit()` adds no capability check, so an ordinary unprivileged user can issue the query. Only a local unprivileged account in the initial network namespace is needed.\nUI:N - The attacker issues the devlink netlink request directly; no administrator or other user action is required for the path to execute.\nS:U - The uninitialized read, out-of-bounds read, and any resulting crash are all confined to the kernel of the same host. No VM, IOMMU, or sandbox boundary is crossed.\nC:H - Up to 512 bytes of uninitialized kernel stack (and considerably more in the pre-clamp versions, plus the unbounded `strlen()` walk past the struct) are copied into a netlink reply readable by an unprivileged user, potentially disclosing kernel pointers and stack canaries and defeating KASLR/stack-protector. This is an out-of-bounds/uninitialized read that is not bounded to a few bytes.\nI:N - All writes on this path are bounded (`strscpy`, `snprintf`, `memcpy_fromio` of `sizeof(fw_list)`); the defect is purely a read of uninitialized and out-of-bounds memory. No kernel data can be modified through it.\nA:H - The unterminated `char[32]` fields make `nla_put_string()`'s `strlen()` run off the end of the stack frame — and in the unclamped versions the loop reads roughly 10 KB past it — which can touch the VMAP_STACK guard page and oops the kernel; the fix's changelog explicitly says the driver may \"at the worst crash\". An unprivileged user can retry this repeatedly."
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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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"drivers/net/ethernet/amd/pds_core/devlink.c"
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],
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"versions": [
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{
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"version": "45d76f492938cdc27ddadc16e1e75103f4cfbf56",
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"lessThan": "cdd784c96fe2e5edbf0ed9b3e96fe776e8092385",
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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": "45d76f492938cdc27ddadc16e1e75103f4cfbf56",
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"lessThan": "6702f5c6b22deaa95bf84f526148174a160a02cb",
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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": "45d76f492938cdc27ddadc16e1e75103f4cfbf56",
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"lessThan": "12a4651a80dbe4589a84e26785fbbe1ed4d043b7",
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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": "45d76f492938cdc27ddadc16e1e75103f4cfbf56",
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"lessThan": "2567daad69cd1107fc0ec29b1615f110d7cf7385",
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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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"drivers/net/ethernet/amd/pds_core/devlink.c"
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],
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"versions": [
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{
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"version": "6.4",
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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": "6.4",
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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": "6.6.89",
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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": "6.12.26",
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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": "6.14.5",
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"lessThanOrEqual": "6.14.*",
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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": "6.15",
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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": "6.4",
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"versionEndExcluding": "6.6.89"
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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": "6.4",
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"versionEndExcluding": "6.12.26"
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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": "6.4",
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"versionEndExcluding": "6.14.5"
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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": "6.4",
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"versionEndExcluding": "6.15"
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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/cdd784c96fe2e5edbf0ed9b3e96fe776e8092385"
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},
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{
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"url": "https://git.kernel.org/stable/c/6702f5c6b22deaa95bf84f526148174a160a02cb"
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},
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{
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"url": "https://git.kernel.org/stable/c/12a4651a80dbe4589a84e26785fbbe1ed4d043b7"
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},
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{
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"url": "https://git.kernel.org/stable/c/2567daad69cd1107fc0ec29b1615f110d7cf7385"
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}
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],
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"title": "pds_core: handle unsupported PDS_CORE_CMD_FW_CONTROL result",
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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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} |