205 lines
12 KiB
JSON
205 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-2026-64162",
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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": "2026-07-19T07:54:57.038Z",
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"datePublished": "2026-07-19T15:40:48.461Z",
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"dateUpdated": "2026-10-19T20:28:14.274Z"
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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": "2026-08-05T12:39:51.253Z"
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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\nidpf: fix read_dev_clk_lock spinlock init in idpf_ptp_init()\n\nIn idpf_ptp_init(), read_dev_clk_lock is initialized after\nptp_schedule_worker() had already been called (and after\nidpf_ptp_settime64() could reach the lock). The PTP aux worker\nfires immediately upon scheduling and can call into\nidpf_ptp_read_src_clk_reg_direct(), which takes\nspin_lock(&ptp->read_dev_clk_lock) on an uninitialized lock, triggering\nthe lockdep \"non-static key\" warning:\n\n[12973.796587] idpf 0000:83:00.0: Device HW Reset initiated\n[12974.094507] INFO: trying to register non-static key.\n...\n[12974.097208] Call Trace:\n[12974.097213] <TASK>\n[12974.097218] dump_stack_lvl+0x93/0xe0\n[12974.097234] register_lock_class+0x4c4/0x4e0\n[12974.097249] ? __lock_acquire+0x427/0x2290\n[12974.097259] __lock_acquire+0x98/0x2290\n[12974.097272] lock_acquire+0xc6/0x310\n[12974.097281] ? idpf_ptp_read_src_clk_reg+0xb7/0x150 [idpf]\n[12974.097311] ? lockdep_hardirqs_on_prepare+0xde/0x190\n[12974.097318] ? finish_task_switch.isra.0+0xd2/0x350\n[12974.097330] ? __pfx_ptp_aux_kworker+0x10/0x10 [ptp]\n[12974.097343] _raw_spin_lock+0x30/0x40\n[12974.097353] ? idpf_ptp_read_src_clk_reg+0xb7/0x150 [idpf]\n[12974.097373] idpf_ptp_read_src_clk_reg+0xb7/0x150 [idpf]\n[12974.097391] ? kthread_worker_fn+0x88/0x3d0\n[12974.097404] ? kthread_worker_fn+0x4e/0x3d0\n[12974.097411] idpf_ptp_update_cached_phctime+0x26/0x120 [idpf]\n[12974.097428] ? _raw_spin_unlock_irq+0x28/0x50\n[12974.097436] idpf_ptp_do_aux_work+0x15/0x20 [idpf]\n[12974.097454] ptp_aux_kworker+0x20/0x40 [ptp]\n[12974.097464] kthread_worker_fn+0xd5/0x3d0\n[12974.097474] ? __pfx_kthread_worker_fn+0x10/0x10\n[12974.097482] kthread+0xf4/0x130\n[12974.097489] ? __pfx_kthread+0x10/0x10\n[12974.097498] ret_from_fork+0x32c/0x410\n[12974.097512] ? __pfx_kthread+0x10/0x10\n[12974.097519] ret_from_fork_asm+0x1a/0x30\n[12974.097540] </TASK>\n\nMove the call to spin_lock_init() up a bit to make sure read_dev_clk_lock\nis not touched before it's been initialized."
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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:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H",
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"baseScore": 9.8,
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"baseSeverity": "CRITICAL"
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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:N - On internet-facing cloud or datacenter hosts using Intel idpf NICs, a remote peer can send sustained or crafted traffic that stalls TX completion, triggering `idpf_tx_timeout()` → hardware reset → `idpf_vc_core_init()` → `idpf_ptp_init()`, which reaches the uninitialized `read_dev_clk_lock` via the immediately scheduled PTP aux worker or `idpf_ptp_settime64()`.\nAC:L - Once PTP reinitialization runs with device clock access enabled, `ptp_schedule_worker(..., 0)` fires the aux kworker immediately and races deterministically with the late `spin_lock_init()`; the attacker does not need to win a timing lottery beyond causing the reset that enters this path.\nPR:N - Triggering the vulnerable init path via TX-timeout-driven hardware reset requires no target-system privileges—only the ability to send traffic to a network interface managed by idpf, including unauthenticated remote access to a publicly reachable server.\nUI:N - Exploitation is fully automated once the attacker induces the reset/recovery sequence; no victim login, configuration change, or other voluntary action is required.\nS:U - Impact is confined to kernel/driver state on the host running idpf; it does not cross a VM, container, or IOMMU security boundary into another authority.\nC:H - Using `spin_lock()` on an uninitialized (zeroed) lock allows concurrent, unsynchronized entry into `idpf_ptp_read_src_clk_reg_direct()` and shared PHC/MMIO read paths, creating a race on kernel/driver state that can be leveraged for information disclosure under the kernel CNA guidance for synchronization-breaking bugs.\nI:H - Concurrent unsynchronized callers can interleave `idpf_ptp_enable_shtime()` MMIO writes and cached PHC updates, corrupting device clock and driver timing state in ways that constitute exploitable integrity impact beyond a benign crash.\nA:H - Taking an uninitialized spinlock during HW-reset recovery can cause kernel deadlock, oops, or hang (lockdep “non-static key” failure was observed in the fix commit’s HW-reset trace), satisfying high availability impact for kernel stability bugs."
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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/intel/idpf/idpf_ptp.c"
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],
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"versions": [
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{
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"version": "5cb8805d2366b20ee4d7afff586d8acf17649330",
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"lessThan": "eb5991d4c8ba2e8153dfcda3e66a9608377b7dce",
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"status": "affected",
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"programFiles": [
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"drivers/net/ethernet/intel/idpf/idpf_ptp.c"
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],
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"versions": [
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{
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"version": "6.16",
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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": "6.16",
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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": "6.18.34",
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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": "7.0.11",
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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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"operator": "OR",
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"negate": false,
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"cpeMatch": [
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"vulnerable": true,
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"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
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"versionStartIncluding": "6.16",
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"versionEndExcluding": "6.18.34"
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},
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{
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"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
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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/eb5991d4c8ba2e8153dfcda3e66a9608377b7dce"
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},
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{
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"url": "https://git.kernel.org/stable/c/3122d70b7c0101d897fb795658a7b93f854935f2"
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{
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"url": "https://git.kernel.org/stable/c/da4f76b6a84ede14a71282ef841768299ead0221"
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}
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],
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"title": "idpf: fix read_dev_clk_lock spinlock init in idpf_ptp_init()",
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"x_generator": {
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"engine": "bippy-1.2.0"
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{
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"metrics": [
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{
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"other": {
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"type": "ssvc",
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"content": {
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"id": "CVE-2026-64162",
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"role": "CISA Coordinator",
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"options": [
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{
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"Exploitation": "none"
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},
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{
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"Automatable": "yes"
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},
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{
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"Technical Impact": "total"
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}
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],
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"version": "2.0.3",
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"timestamp": "2026-10-16T15:37:07.013851Z"
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}
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}
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}
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],
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"problemTypes": [
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{
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"descriptions": [
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{
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"lang": "en",
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"type": "CWE",
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"cweId": "CWE-666",
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"description": "CWE-666 Operation on Resource in Wrong Phase of Lifetime"
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}
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]
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}
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],
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"title": "CISA ADP Vulnrichment",
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"providerMetadata": {
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"orgId": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
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"shortName": "CISA-ADP",
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"dateUpdated": "2026-10-19T20:28:14.274Z"
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}
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}
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]
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}
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} |