CVE-2026-64162

{"dataType": "CVE_RECORD", "dataVersion": "5.2", "cveMetadata": {"cveId": "CVE-2026-64162", "assignerOrgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "state": "PUBLISHED", "assignerShortName": "Linux", "dateReserved": "2026-07-19T07:54:57.038Z", "datePublished": "2026-07-19T15:40:48.461Z", "dateUpdated": "2026-10-19T20:28:14.274Z"}, "containers": {"cna": {"providerMetadata": {"orgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "shortName": "Linux", "dateUpdated": "2026-08-05T12:39:51.253Z"}, "descriptions": [{"lang": "en", "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."}], "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 - 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()` \u2192 hardware reset \u2192 `idpf_vc_core_init()` \u2192 `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\u2014only 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 \u201cnon-static key\u201d failure was observed in the fix commit\u2019s HW-reset trace), satisfying high availability impact for kernel stability bugs."}]}], "affected": [{"product": "Linux", "vendor": "Linux", "defaultStatus": "unaffected", "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git", "programFiles": ["drivers/net/ethernet/intel/idpf/idpf_ptp.c"], "versions": [{"version": "5cb8805d2366b20ee4d7afff586d8acf17649330", "lessThan": "eb5991d4c8ba2e8153dfcda3e66a9608377b7dce", "status": "affected", "versionType": "git"}, {"version": "5cb8805d2366b20ee4d7afff586d8acf17649330", "lessThan": "3122d70b7c0101d897fb795658a7b93f854935f2", "status": "affected", "versionType": "git"}, {"version": "5cb8805d2366b20ee4d7afff586d8acf17649330", "lessThan": "da4f76b6a84ede14a71282ef841768299ead0221", "status": "affected", "versionType": "git"}]}, {"product": "Linux", "vendor": "Linux", "defaultStatus": "affected", "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git", "programFiles": ["drivers/net/ethernet/intel/idpf/idpf_ptp.c"], "versions": [{"version": "6.16", "status": "affected"}, {"version": "0", "lessThan": "6.16", "status": "unaffected", "versionType": "semver"}, {"version": "6.18.34", "lessThanOrEqual": "6.18.*", "status": "unaffected", "versionType": "semver"}, {"version": "7.0.11", "lessThanOrEqual": "7.0.*", "status": "unaffected", "versionType": "semver"}, {"version": "7.1", "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": "6.16", "versionEndExcluding": "6.18.34"}, {"vulnerable": true, "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "versionStartIncluding": "6.16", "versionEndExcluding": "7.0.11"}, {"vulnerable": true, "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "versionStartIncluding": "6.16", "versionEndExcluding": "7.1"}]}]}], "references": [{"url": "https://git.kernel.org/stable/c/eb5991d4c8ba2e8153dfcda3e66a9608377b7dce"}, {"url": "https://git.kernel.org/stable/c/3122d70b7c0101d897fb795658a7b93f854935f2"}, {"url": "https://git.kernel.org/stable/c/da4f76b6a84ede14a71282ef841768299ead0221"}], "title": "idpf: fix read_dev_clk_lock spinlock init in idpf_ptp_init()", "x_generator": {"engine": "bippy-1.2.0"}}, "adp": [{"metrics": [{"other": {"type": "ssvc", "content": {"id": "CVE-2026-64162", "role": "CISA Coordinator", "options": [{"Exploitation": "none"}, {"Automatable": "yes"}, {"Technical Impact": "total"}], "version": "2.0.3", "timestamp": "2026-10-16T15:37:07.013851Z"}}}], "problemTypes": [{"descriptions": [{"lang": "en", "type": "CWE", "cweId": "CWE-666", "description": "CWE-666 Operation on Resource in Wrong Phase of Lifetime"}]}], "title": "CISA ADP Vulnrichment", "providerMetadata": {"orgId": "134c704f-9b21-4f2e-91b3-4a467353bcc0", "shortName": "CISA-ADP", "dateUpdated": "2026-10-19T20:28:14.274Z"}}]}}

{"dataType": "CVE_RECORD", "containers": {"adp": [{"title": "CISA ADP Vulnrichment", "metrics": [{"other": {"type": "ssvc", "content": {"id": "CVE-2026-64162", "role": "CISA Coordinator", "options": [{"Exploitation": "none"}, {"Automatable": "yes"}, {"Technical Impact": "total"}], "version": "2.0.3", "timestamp": "2026-10-16T15:37:07.013851Z"}}}], "problemTypes": [{"descriptions": [{"lang": "en", "type": "CWE", "cweId": "CWE-666", "description": "CWE-666 Operation on Resource in Wrong Phase of Lifetime"}]}], "providerMetadata": {"orgId": "134c704f-9b21-4f2e-91b3-4a467353bcc0", "shortName": "CISA-ADP", "dateUpdated": "2026-10-16T15:37:07.899Z"}}], "cna": {"title": "idpf: fix read_dev_clk_lock spinlock init in idpf_ptp_init()", "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 - 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()` \u2192 hardware reset \u2192 `idpf_vc_core_init()` \u2192 `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\u2014only 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 \u201cnon-static key\u201d failure was observed in the fix commit\u2019s HW-reset trace), satisfying high availability impact for kernel stability bugs."}]}], "affected": [{"repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git", "vendor": "Linux", "product": "Linux", "versions": [{"status": "affected", "version": "5cb8805d2366b20ee4d7afff586d8acf17649330", "lessThan": "eb5991d4c8ba2e8153dfcda3e66a9608377b7dce", "versionType": "git"}, {"status": "affected", "version": "5cb8805d2366b20ee4d7afff586d8acf17649330", "lessThan": "3122d70b7c0101d897fb795658a7b93f854935f2", "versionType": "git"}, {"status": "affected", "version": "5cb8805d2366b20ee4d7afff586d8acf17649330", "lessThan": "da4f76b6a84ede14a71282ef841768299ead0221", "versionType": "git"}], "programFiles": ["drivers/net/ethernet/intel/idpf/idpf_ptp.c"], "defaultStatus": "unaffected"}, {"repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git", "vendor": "Linux", "product": "Linux", "versions": [{"status": "affected", "version": "6.16"}, {"status": "unaffected", "version": "0", "lessThan": "6.16", "versionType": "semver"}, {"status": "unaffected", "version": "6.18.34", "versionType": "semver", "lessThanOrEqual": "6.18.*"}, {"status": "unaffected", "version": "7.0.11", "versionType": "semver", "lessThanOrEqual": "7.0.*"}, {"status": "unaffected", "version": "7.1", "versionType": "original_commit_for_fix", "lessThanOrEqual": "*"}], "programFiles": ["drivers/net/ethernet/intel/idpf/idpf_ptp.c"], "defaultStatus": "affected"}], "references": [{"url": "https://git.kernel.org/stable/c/eb5991d4c8ba2e8153dfcda3e66a9608377b7dce"}, {"url": "https://git.kernel.org/stable/c/3122d70b7c0101d897fb795658a7b93f854935f2"}, {"url": "https://git.kernel.org/stable/c/da4f76b6a84ede14a71282ef841768299ead0221"}], "x_generator": {"engine": "bippy-1.2.0"}, "descriptions": [{"lang": "en", "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."}], "cpeApplicability": [{"nodes": [{"negate": false, "cpeMatch": [{"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "vulnerable": true, "versionEndExcluding": "6.18.34", "versionStartIncluding": "6.16"}, {"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "vulnerable": true, "versionEndExcluding": "7.0.11", "versionStartIncluding": "6.16"}, {"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "vulnerable": true, "versionEndExcluding": "7.1", "versionStartIncluding": "6.16"}], "operator": "OR"}]}], "providerMetadata": {"orgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "shortName": "Linux", "dateUpdated": "2026-08-05T12:39:51.253Z"}}}, "cveMetadata": {"cveId": "CVE-2026-64162", "state": "PUBLISHED", "dateUpdated": "2026-10-19T20:28:14.274Z", "dateReserved": "2026-07-19T07:54:57.038Z", "assignerOrgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "datePublished": "2026-07-19T15:40:48.461Z", "assignerShortName": "Linux"}, "dataVersion": "5.2"}

{"affected": [{"affectedData": [{"defaultStatus": "unaffected", "product": "Linux", "programFiles": ["drivers/net/ethernet/intel/idpf/idpf_ptp.c"], "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git", "vendor": "Linux", "versions": [{"lessThan": "eb5991d4c8ba2e8153dfcda3e66a9608377b7dce", "status": "affected", "version": "5cb8805d2366b20ee4d7afff586d8acf17649330", "versionType": "git"}, {"lessThan": "3122d70b7c0101d897fb795658a7b93f854935f2", "status": "affected", "version": "5cb8805d2366b20ee4d7afff586d8acf17649330", "versionType": "git"}, {"lessThan": "da4f76b6a84ede14a71282ef841768299ead0221", "status": "affected", "version": "5cb8805d2366b20ee4d7afff586d8acf17649330", "versionType": "git"}]}, {"defaultStatus": "affected", "product": "Linux", "programFiles": ["drivers/net/ethernet/intel/idpf/idpf_ptp.c"], "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git", "vendor": "Linux", "versions": [{"status": "affected", "version": "6.16"}, {"lessThan": "6.16", "status": "unaffected", "version": "0", "versionType": "semver"}, {"lessThanOrEqual": "6.18.*", "status": "unaffected", "version": "6.18.34", "versionType": "semver"}, {"lessThanOrEqual": "7.0.*", "status": "unaffected", "version": "7.0.11", "versionType": "semver"}, {"lessThanOrEqual": "*", "status": "unaffected", "version": "7.1", "versionType": "original_commit_for_fix"}]}], "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67"}], "configurations": [{"nodes": [{"cpeMatch": [{"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "matchCriteriaId": "2437F48D-051C-4E78-83C2-F198D0F2AE92", "versionEndExcluding": "6.18.34", "versionStartIncluding": "6.16", "vulnerable": true}, {"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "matchCriteriaId": "0520D091-FC52-4A50-AF07-70AE7D08B750", "versionEndExcluding": "7.0.11", "versionStartIncluding": "6.19", "vulnerable": true}, {"criteria": "cpe:2.3:o:linux:linux_kernel:7.1:rc1:*:*:*:*:*:*", "matchCriteriaId": "B1EF7059-E670-45F4-B422-54C40FA86390", "vulnerable": true}, {"criteria": "cpe:2.3:o:linux:linux_kernel:7.1:rc2:*:*:*:*:*:*", "matchCriteriaId": "0D38F0BF-A728-4133-A358-D44A2F7EE6D6", "vulnerable": true}, {"criteria": "cpe:2.3:o:linux:linux_kernel:7.1:rc3:*:*:*:*:*:*", "matchCriteriaId": "EC732D08-5F7B-46D9-B154-E60C7F4F0A97", "vulnerable": true}], "negate": false, "operator": "OR"}]}], "cveTags": [], "descriptions": [{"lang": "en", "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."}], "id": "CVE-2026-64162", "lastModified": "2026-10-19T21:17:25.880", "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-2026-64162", "options": [{"exploitation": "none"}, {"automatable": "yes"}, {"technicalImpact": "total"}], "role": "CISA Coordinator", "timestamp": "2026-10-16T15:37:07.013851Z", "version": "2.0.3"}}]}, "published": "2026-07-19T16:17:58.213", "references": [{"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "tags": ["Patch"], "url": "https://git.kernel.org/stable/c/3122d70b7c0101d897fb795658a7b93f854935f2"}, {"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "tags": ["Patch"], "url": "https://git.kernel.org/stable/c/da4f76b6a84ede14a71282ef841768299ead0221"}, {"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "tags": ["Patch"], "url": "https://git.kernel.org/stable/c/eb5991d4c8ba2e8153dfcda3e66a9608377b7dce"}], "sourceIdentifier": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "vulnStatus": "Modified", "weaknesses": [{"description": [{"lang": "en", "value": "NVD-CWE-noinfo"}], "source": "nvd@nist.gov", "type": "Primary"}, {"description": [{"lang": "en", "value": "CWE-666"}], "source": "134c704f-9b21-4f2e-91b3-4a467353bcc0", "type": "Secondary"}]}

{"bugzilla": {"description": "kernel: idpf: fix read_dev_clk_lock spinlock init in idpf_ptp_init()", "id": "2502521", "url": "https://bugzilla.redhat.com/show_bug.cgi?id=2502521"}, "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-909", "details": ["In the Linux kernel, the following vulnerability has been resolved:\nidpf: fix read_dev_clk_lock spinlock init in idpf_ptp_init()\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[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>\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.", "A flaw was found in the Linux kernel's Intel Ethernet controller driver (idpf). This vulnerability occurs because a critical synchronization mechanism, known as a spinlock, is accessed before it has been properly initialized. An attacker could potentially exploit this timing issue to cause the system to become unstable or crash, leading to a Denial of Service (DoS)."], "name": "CVE-2026-64162", "package_state": [{"cpe": "cpe:/o:redhat:enterprise_linux:10", "fix_state": "Fix deferred", "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": "Fix deferred", "package_name": "kernel", "product_name": "Red Hat Enterprise Linux 9"}, {"cpe": "cpe:/o:redhat:enterprise_linux:9", "fix_state": "Fix deferred", "package_name": "kernel-rt", "product_name": "Red Hat Enterprise Linux 9"}], "public_date": "2026-07-19T00:00:00Z", "references": ["https://www.cve.org/CVERecord?id=CVE-2026-64162\nhttps://nvd.nist.gov/vuln/detail/CVE-2026-64162\nhttps://lore.kernel.org/linux-cve-announce/2026071934-CVE-2026-64162-9107@gregkh/T"], "threat_severity": "Low"}

{"affected": [{"configurations": [{"platform": null, "status": "affected", "versions": {"scheme": "code_commit", "value": "[5cb8805d2366b20ee4d7afff586d8acf17649330,eb5991d4c8ba2e8153dfcda3e66a9608377b7dce)"}}, {"platform": null, "status": "affected", "versions": {"scheme": "code_commit", "value": "[5cb8805d2366b20ee4d7afff586d8acf17649330,3122d70b7c0101d897fb795658a7b93f854935f2)"}}, {"platform": null, "status": "affected", "versions": {"scheme": "code_commit", "value": "[5cb8805d2366b20ee4d7afff586d8acf17649330,da4f76b6a84ede14a7128ef841768299ead0221)"}}], "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": "semver", "value": "6.16"}}, {"platform": null, "status": "unaffected", "versions": {"scheme": "semver", "value": "[0,6.16)"}}, {"platform": null, "status": "unaffected", "versions": {"scheme": "semver", "value": "[6.18.34,6.19.0)"}}, {"platform": null, "status": "unaffected", "versions": {"scheme": "semver", "value": "[7.0.11,7.1.0)"}}, {"platform": null, "status": "unaffected", "versions": {"scheme": "generic", "value": "[7.1,*]"}}], "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": "2026-07-21T12:15:02.682060+00:00", "updated": "2026-10-23T00:15:13.794549+00:00", "vendors": ["linux", "linux$PRODUCT$linux_kernel"]}