CVE-2024-40980
Vulnerability from cvelistv5
Published
2024-07-12 12:32
Modified
2024-12-19 09:09
Severity ?
Summary
In the Linux kernel, the following vulnerability has been resolved: drop_monitor: replace spin_lock by raw_spin_lock trace_drop_common() is called with preemption disabled, and it acquires a spin_lock. This is problematic for RT kernels because spin_locks are sleeping locks in this configuration, which causes the following splat: BUG: sleeping function called from invalid context at kernel/locking/spinlock_rt.c:48 in_atomic(): 1, irqs_disabled(): 1, non_block: 0, pid: 449, name: rcuc/47 preempt_count: 1, expected: 0 RCU nest depth: 2, expected: 2 5 locks held by rcuc/47/449: #0: ff1100086ec30a60 ((softirq_ctrl.lock)){+.+.}-{2:2}, at: __local_bh_disable_ip+0x105/0x210 #1: ffffffffb394a280 (rcu_read_lock){....}-{1:2}, at: rt_spin_lock+0xbf/0x130 #2: ffffffffb394a280 (rcu_read_lock){....}-{1:2}, at: __local_bh_disable_ip+0x11c/0x210 #3: ffffffffb394a160 (rcu_callback){....}-{0:0}, at: rcu_do_batch+0x360/0xc70 #4: ff1100086ee07520 (&data->lock){+.+.}-{2:2}, at: trace_drop_common.constprop.0+0xb5/0x290 irq event stamp: 139909 hardirqs last enabled at (139908): [<ffffffffb1df2b33>] _raw_spin_unlock_irqrestore+0x63/0x80 hardirqs last disabled at (139909): [<ffffffffb19bd03d>] trace_drop_common.constprop.0+0x26d/0x290 softirqs last enabled at (139892): [<ffffffffb07a1083>] __local_bh_enable_ip+0x103/0x170 softirqs last disabled at (139898): [<ffffffffb0909b33>] rcu_cpu_kthread+0x93/0x1f0 Preemption disabled at: [<ffffffffb1de786b>] rt_mutex_slowunlock+0xab/0x2e0 CPU: 47 PID: 449 Comm: rcuc/47 Not tainted 6.9.0-rc2-rt1+ #7 Hardware name: Dell Inc. PowerEdge R650/0Y2G81, BIOS 1.6.5 04/15/2022 Call Trace: <TASK> dump_stack_lvl+0x8c/0xd0 dump_stack+0x14/0x20 __might_resched+0x21e/0x2f0 rt_spin_lock+0x5e/0x130 ? trace_drop_common.constprop.0+0xb5/0x290 ? skb_queue_purge_reason.part.0+0x1bf/0x230 trace_drop_common.constprop.0+0xb5/0x290 ? preempt_count_sub+0x1c/0xd0 ? _raw_spin_unlock_irqrestore+0x4a/0x80 ? __pfx_trace_drop_common.constprop.0+0x10/0x10 ? rt_mutex_slowunlock+0x26a/0x2e0 ? skb_queue_purge_reason.part.0+0x1bf/0x230 ? __pfx_rt_mutex_slowunlock+0x10/0x10 ? skb_queue_purge_reason.part.0+0x1bf/0x230 trace_kfree_skb_hit+0x15/0x20 trace_kfree_skb+0xe9/0x150 kfree_skb_reason+0x7b/0x110 skb_queue_purge_reason.part.0+0x1bf/0x230 ? __pfx_skb_queue_purge_reason.part.0+0x10/0x10 ? mark_lock.part.0+0x8a/0x520 ... trace_drop_common() also disables interrupts, but this is a minor issue because we could easily replace it with a local_lock. Replace the spin_lock with raw_spin_lock to avoid sleeping in atomic context.
References
416baaa9-dc9f-4396-8d5f-8c081fb06d67https://git.kernel.org/stable/c/07ea878684dfb78a9d4f564c39d07e855a9e242ePatch
416baaa9-dc9f-4396-8d5f-8c081fb06d67https://git.kernel.org/stable/c/594e47957f3fe034645e6885393ce96c12286334Patch
416baaa9-dc9f-4396-8d5f-8c081fb06d67https://git.kernel.org/stable/c/76ce2f9125244e1708d29c1d3f9d1d50b347bda0Patch
416baaa9-dc9f-4396-8d5f-8c081fb06d67https://git.kernel.org/stable/c/96941f29ebcc1e9cbf570dc903f30374909562f5Patch
416baaa9-dc9f-4396-8d5f-8c081fb06d67https://git.kernel.org/stable/c/b3722fb69468693555f531cddda5c30444726dacPatch
416baaa9-dc9f-4396-8d5f-8c081fb06d67https://git.kernel.org/stable/c/f1e197a665c2148ebc25fe09c53689e60afea195Patch
416baaa9-dc9f-4396-8d5f-8c081fb06d67https://git.kernel.org/stable/c/f251ccef1d864790e5253386e95544420b7cd8f3Patch
af854a3a-2127-422b-91ae-364da2661108https://git.kernel.org/stable/c/07ea878684dfb78a9d4f564c39d07e855a9e242ePatch
af854a3a-2127-422b-91ae-364da2661108https://git.kernel.org/stable/c/594e47957f3fe034645e6885393ce96c12286334Patch
af854a3a-2127-422b-91ae-364da2661108https://git.kernel.org/stable/c/76ce2f9125244e1708d29c1d3f9d1d50b347bda0Patch
af854a3a-2127-422b-91ae-364da2661108https://git.kernel.org/stable/c/96941f29ebcc1e9cbf570dc903f30374909562f5Patch
af854a3a-2127-422b-91ae-364da2661108https://git.kernel.org/stable/c/b3722fb69468693555f531cddda5c30444726dacPatch
af854a3a-2127-422b-91ae-364da2661108https://git.kernel.org/stable/c/f1e197a665c2148ebc25fe09c53689e60afea195Patch
af854a3a-2127-422b-91ae-364da2661108https://git.kernel.org/stable/c/f251ccef1d864790e5253386e95544420b7cd8f3Patch
Impacted products
Vendor Product Version
Linux Linux
Show details on NVD website

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          "value": "In the Linux kernel, the following vulnerability has been resolved:\n\ndrop_monitor: replace spin_lock by raw_spin_lock\n\ntrace_drop_common() is called with preemption disabled, and it acquires\na spin_lock. This is problematic for RT kernels because spin_locks are\nsleeping locks in this configuration, which causes the following splat:\n\nBUG: sleeping function called from invalid context at kernel/locking/spinlock_rt.c:48\nin_atomic(): 1, irqs_disabled(): 1, non_block: 0, pid: 449, name: rcuc/47\npreempt_count: 1, expected: 0\nRCU nest depth: 2, expected: 2\n5 locks held by rcuc/47/449:\n #0: ff1100086ec30a60 ((softirq_ctrl.lock)){+.+.}-{2:2}, at: __local_bh_disable_ip+0x105/0x210\n #1: ffffffffb394a280 (rcu_read_lock){....}-{1:2}, at: rt_spin_lock+0xbf/0x130\n #2: ffffffffb394a280 (rcu_read_lock){....}-{1:2}, at: __local_bh_disable_ip+0x11c/0x210\n #3: ffffffffb394a160 (rcu_callback){....}-{0:0}, at: rcu_do_batch+0x360/0xc70\n #4: ff1100086ee07520 (\u0026data-\u003elock){+.+.}-{2:2}, at: trace_drop_common.constprop.0+0xb5/0x290\nirq event stamp: 139909\nhardirqs last  enabled at (139908): [\u003cffffffffb1df2b33\u003e] _raw_spin_unlock_irqrestore+0x63/0x80\nhardirqs last disabled at (139909): [\u003cffffffffb19bd03d\u003e] trace_drop_common.constprop.0+0x26d/0x290\nsoftirqs last  enabled at (139892): [\u003cffffffffb07a1083\u003e] __local_bh_enable_ip+0x103/0x170\nsoftirqs last disabled at (139898): [\u003cffffffffb0909b33\u003e] rcu_cpu_kthread+0x93/0x1f0\nPreemption disabled at:\n[\u003cffffffffb1de786b\u003e] rt_mutex_slowunlock+0xab/0x2e0\nCPU: 47 PID: 449 Comm: rcuc/47 Not tainted 6.9.0-rc2-rt1+ #7\nHardware name: Dell Inc. PowerEdge R650/0Y2G81, BIOS 1.6.5 04/15/2022\nCall Trace:\n \u003cTASK\u003e\n dump_stack_lvl+0x8c/0xd0\n dump_stack+0x14/0x20\n __might_resched+0x21e/0x2f0\n rt_spin_lock+0x5e/0x130\n ? trace_drop_common.constprop.0+0xb5/0x290\n ? skb_queue_purge_reason.part.0+0x1bf/0x230\n trace_drop_common.constprop.0+0xb5/0x290\n ? preempt_count_sub+0x1c/0xd0\n ? _raw_spin_unlock_irqrestore+0x4a/0x80\n ? __pfx_trace_drop_common.constprop.0+0x10/0x10\n ? rt_mutex_slowunlock+0x26a/0x2e0\n ? skb_queue_purge_reason.part.0+0x1bf/0x230\n ? __pfx_rt_mutex_slowunlock+0x10/0x10\n ? skb_queue_purge_reason.part.0+0x1bf/0x230\n trace_kfree_skb_hit+0x15/0x20\n trace_kfree_skb+0xe9/0x150\n kfree_skb_reason+0x7b/0x110\n skb_queue_purge_reason.part.0+0x1bf/0x230\n ? __pfx_skb_queue_purge_reason.part.0+0x10/0x10\n ? mark_lock.part.0+0x8a/0x520\n...\n\ntrace_drop_common() also disables interrupts, but this is a minor issue\nbecause we could easily replace it with a local_lock.\n\nReplace the spin_lock with raw_spin_lock to avoid sleeping in atomic\ncontext."
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    "assignerShortName": "Linux",
    "cveId": "CVE-2024-40980",
    "datePublished": "2024-07-12T12:32:15.569Z",
    "dateReserved": "2024-07-12T12:17:45.604Z",
    "dateUpdated": "2024-12-19T09:09:22.853Z",
    "state": "PUBLISHED"
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  "meta": {
    "nvd": "{\"cve\":{\"id\":\"CVE-2024-40980\",\"sourceIdentifier\":\"416baaa9-dc9f-4396-8d5f-8c081fb06d67\",\"published\":\"2024-07-12T13:15:19.550\",\"lastModified\":\"2024-11-21T09:31:59.823\",\"vulnStatus\":\"Modified\",\"cveTags\":[],\"descriptions\":[{\"lang\":\"en\",\"value\":\"In the Linux kernel, the following vulnerability has been resolved:\\n\\ndrop_monitor: replace spin_lock by raw_spin_lock\\n\\ntrace_drop_common() is called with preemption disabled, and it acquires\\na spin_lock. This is problematic for RT kernels because spin_locks are\\nsleeping locks in this configuration, which causes the following splat:\\n\\nBUG: sleeping function called from invalid context at kernel/locking/spinlock_rt.c:48\\nin_atomic(): 1, irqs_disabled(): 1, non_block: 0, pid: 449, name: rcuc/47\\npreempt_count: 1, expected: 0\\nRCU nest depth: 2, expected: 2\\n5 locks held by rcuc/47/449:\\n #0: ff1100086ec30a60 ((softirq_ctrl.lock)){+.+.}-{2:2}, at: __local_bh_disable_ip+0x105/0x210\\n #1: ffffffffb394a280 (rcu_read_lock){....}-{1:2}, at: rt_spin_lock+0xbf/0x130\\n #2: ffffffffb394a280 (rcu_read_lock){....}-{1:2}, at: __local_bh_disable_ip+0x11c/0x210\\n #3: ffffffffb394a160 (rcu_callback){....}-{0:0}, at: rcu_do_batch+0x360/0xc70\\n #4: ff1100086ee07520 (\u0026data-\u003elock){+.+.}-{2:2}, at: trace_drop_common.constprop.0+0xb5/0x290\\nirq event stamp: 139909\\nhardirqs last  enabled at (139908): [\u003cffffffffb1df2b33\u003e] _raw_spin_unlock_irqrestore+0x63/0x80\\nhardirqs last disabled at (139909): [\u003cffffffffb19bd03d\u003e] trace_drop_common.constprop.0+0x26d/0x290\\nsoftirqs last  enabled at (139892): [\u003cffffffffb07a1083\u003e] __local_bh_enable_ip+0x103/0x170\\nsoftirqs last disabled at (139898): [\u003cffffffffb0909b33\u003e] rcu_cpu_kthread+0x93/0x1f0\\nPreemption disabled at:\\n[\u003cffffffffb1de786b\u003e] rt_mutex_slowunlock+0xab/0x2e0\\nCPU: 47 PID: 449 Comm: rcuc/47 Not tainted 6.9.0-rc2-rt1+ #7\\nHardware name: Dell Inc. PowerEdge R650/0Y2G81, BIOS 1.6.5 04/15/2022\\nCall Trace:\\n \u003cTASK\u003e\\n dump_stack_lvl+0x8c/0xd0\\n dump_stack+0x14/0x20\\n __might_resched+0x21e/0x2f0\\n rt_spin_lock+0x5e/0x130\\n ? trace_drop_common.constprop.0+0xb5/0x290\\n ? skb_queue_purge_reason.part.0+0x1bf/0x230\\n trace_drop_common.constprop.0+0xb5/0x290\\n ? preempt_count_sub+0x1c/0xd0\\n ? _raw_spin_unlock_irqrestore+0x4a/0x80\\n ? __pfx_trace_drop_common.constprop.0+0x10/0x10\\n ? rt_mutex_slowunlock+0x26a/0x2e0\\n ? skb_queue_purge_reason.part.0+0x1bf/0x230\\n ? __pfx_rt_mutex_slowunlock+0x10/0x10\\n ? skb_queue_purge_reason.part.0+0x1bf/0x230\\n trace_kfree_skb_hit+0x15/0x20\\n trace_kfree_skb+0xe9/0x150\\n kfree_skb_reason+0x7b/0x110\\n skb_queue_purge_reason.part.0+0x1bf/0x230\\n ? __pfx_skb_queue_purge_reason.part.0+0x10/0x10\\n ? mark_lock.part.0+0x8a/0x520\\n...\\n\\ntrace_drop_common() also disables interrupts, but this is a minor issue\\nbecause we could easily replace it with a local_lock.\\n\\nReplace the spin_lock with raw_spin_lock to avoid sleeping in atomic\\ncontext.\"},{\"lang\":\"es\",\"value\":\"En el kernel de Linux se ha resuelto la siguiente vulnerabilidad: drop_monitor: reemplaza spin_lock por raw_spin_lock Se llama a trace_drop_common() con la preferencia deshabilitada y adquiere un spin_lock. Esto es problem\u00e1tico para los kernels RT porque los spin_locks son bloqueos inactivos en esta configuraci\u00f3n, lo que provoca el siguiente s\u00edmbolo: ERROR: funci\u00f3n inactiva llamada desde un contexto no v\u00e1lido en kernel/locking/spinlock_rt.c:48 in_atomic(): 1, irqs_disabled(): 1 , non_block: 0, pid: 449, nombre: rcuc/47 preempt_count: 1, esperado: 0 Profundidad del nido de RCU: 2, esperado: 2 5 bloqueos retenidos por rcuc/47/449: #0: ff1100086ec30a60 ((softirq_ctrl.lock) ){+.+.}-{2:2}, en: __local_bh_disable_ip+0x105/0x210 #1: fffffffffb394a280 (rcu_read_lock){....}-{1:2}, en: rt_spin_lock+0xbf/0x130 #2 : ffffffffb394a280 (rcu_read_lock){....}-{1:2}, en: __local_bh_disable_ip+0x11c/0x210 #3: ffffffffb394a160 (rcu_callback){....}-{0:0}, en: rcu_do_batch+0x360 /0xc70 #4: ff1100086ee07520 (\u0026amp;data-\u0026gt;lock){+.+.}-{2:2}, en: trace_drop_common.constprop.0+0xb5/0x290 sello de evento irq: 139909 hardirqs habilitado por \u00faltima vez en (139908): [ ] _raw_spin_unlock_irqrestore+0x63/0x80 hardirqs deshabilitado por \u00faltima vez en (139909): [] trace_drop_common.constprop.0+0x26d/0x290 softirqs habilitado por \u00faltima vez en (139892): [ ] __local_bh_enable_ip+0x103/0x170 softirqs \u00faltimamente deshabilitado en (139898): [] rcu_cpu_kthread+0x93/0x1f0 Prelaci\u00f3n deshabilitada en: [] rt_mutex_slowunlock+0xab/0x2e0 CPU: 47 PID: 449 Comm: rcuc/47 No contaminado 6.9.0-rc2 - rt1+ #7 Nombre del hardware: Dell Inc. PowerEdge R650/0Y2G81, BIOS 1.6.5 15/04/2022 Seguimiento de llamadas:  dump_stack_lvl+0x8c/0xd0 dump_stack+0x14/0x20 __might_resched+0x21e/0x2f0 rt_spin_lock+0x5e/0x130 ? trace_drop_common.constprop.0+0xb5/0x290? skb_queue_purge_reason.part.0+0x1bf/0x230 trace_drop_common.constprop.0+0xb5/0x290 ? preempt_count_sub+0x1c/0xd0? _raw_spin_unlock_irqrestore+0x4a/0x80? __pfx_trace_drop_common.constprop.0+0x10/0x10? rt_mutex_slowunlock+0x26a/0x2e0? skb_queue_purge_reason.part.0+0x1bf/0x230? __pfx_rt_mutex_slowunlock+0x10/0x10? skb_queue_purge_reason.part.0+0x1bf/0x230 trace_kfree_skb_hit+0x15/0x20 trace_kfree_skb+0xe9/0x150 kfree_skb_reason+0x7b/0x110 skb_queue_purge_reason.part.0+0x1bf/0x230 ? __pfx_skb_queue_purge_reason.part.0+0x10/0x10 ? mark_lock.part.0+0x8a/0x520 ... trace_drop_common() tambi\u00e9n desactiva las interrupciones, pero este es un problema menor porque podr\u00edamos reemplazarlo f\u00e1cilmente con local_lock. Reemplace spin_lock con raw_spin_lock para evitar dormir en un contexto at\u00f3mico.\"}],\"metrics\":{\"cvssMetricV31\":[{\"source\":\"nvd@nist.gov\",\"type\":\"Primary\",\"cvssData\":{\"version\":\"3.1\",\"vectorString\":\"CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H\",\"baseScore\":5.5,\"baseSeverity\":\"MEDIUM\",\"attackVector\":\"LOCAL\",\"attackComplexity\":\"LOW\",\"privilegesRequired\":\"LOW\",\"userInteraction\":\"NONE\",\"scope\":\"UNCHANGED\",\"confidentialityImpact\":\"NONE\",\"integrityImpact\":\"NONE\",\"availabilityImpact\":\"HIGH\"},\"exploitabilityScore\":1.8,\"impactScore\":3.6}]},\"weaknesses\":[{\"source\":\"nvd@nist.gov\",\"type\":\"Primary\",\"description\":[{\"lang\":\"en\",\"value\":\"CWE-667\"}]}],\"configurations\":[{\"nodes\":[{\"operator\":\"OR\",\"negate\":false,\"cpeMatch\":[{\"vulnerable\":true,\"criteria\":\"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*\",\"versionEndExcluding\":\"5.4.279\",\"matchCriteriaId\":\"5EBA530D-458E-447C-8744-13D4429CCC4A\"},{\"vulnerable\":true,\"criteria\":\"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*\",\"versionStartIncluding\":\"5.5\",\"versionEndExcluding\":\"5.10.221\",\"matchCriteriaId\":\"659E1520-6345-41AF-B893-A7C0647585A0\"},{\"vulnerable\":true,\"criteria\":\"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*\",\"versionStartIncluding\":\"5.11\",\"versionEndExcluding\":\"5.15.162\",\"matchCriteriaId\":\"10A39ACC-3005-40E8-875C-98A372D1FFD5\"},{\"vulnerable\":true,\"criteria\":\"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*\",\"versionStartIncluding\":\"5.16\",\"versionEndExcluding\":\"6.1.96\",\"matchCriteriaId\":\"61E887B4-732A-40D2-9983-CC6F281EBFB7\"},{\"vulnerable\":true,\"criteria\":\"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*\",\"versionStartIncluding\":\"6.2\",\"versionEndExcluding\":\"6.6.36\",\"matchCriteriaId\":\"E1046C95-860A-45B0-B718-2B29F65BFF10\"},{\"vulnerable\":true,\"criteria\":\"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*\",\"versionStartIncluding\":\"6.7\",\"versionEndExcluding\":\"6.9.7\",\"matchCriteriaId\":\"0A047AF2-94AC-4A3A-B32D-6AB930D8EF1C\"}]}]}],\"references\":[{\"url\":\"https://git.kernel.org/stable/c/07ea878684dfb78a9d4f564c39d07e855a9e242e\",\"source\":\"416baaa9-dc9f-4396-8d5f-8c081fb06d67\",\"tags\":[\"Patch\"]},{\"url\":\"https://git.kernel.org/stable/c/594e47957f3fe034645e6885393ce96c12286334\",\"source\":\"416baaa9-dc9f-4396-8d5f-8c081fb06d67\",\"tags\":[\"Patch\"]},{\"url\":\"https://git.kernel.org/stable/c/76ce2f9125244e1708d29c1d3f9d1d50b347bda0\",\"source\":\"416baaa9-dc9f-4396-8d5f-8c081fb06d67\",\"tags\":[\"Patch\"]},{\"url\":\"https://git.kernel.org/stable/c/96941f29ebcc1e9cbf570dc903f30374909562f5\",\"source\":\"416baaa9-dc9f-4396-8d5f-8c081fb06d67\",\"tags\":[\"Patch\"]},{\"url\":\"https://git.kernel.org/stable/c/b3722fb69468693555f531cddda5c30444726dac\",\"source\":\"416baaa9-dc9f-4396-8d5f-8c081fb06d67\",\"tags\":[\"Patch\"]},{\"url\":\"https://git.kernel.org/stable/c/f1e197a665c2148ebc25fe09c53689e60afea195\",\"source\":\"416baaa9-dc9f-4396-8d5f-8c081fb06d67\",\"tags\":[\"Patch\"]},{\"url\":\"https://git.kernel.org/stable/c/f251ccef1d864790e5253386e95544420b7cd8f3\",\"source\":\"416baaa9-dc9f-4396-8d5f-8c081fb06d67\",\"tags\":[\"Patch\"]},{\"url\":\"https://git.kernel.org/stable/c/07ea878684dfb78a9d4f564c39d07e855a9e242e\",\"source\":\"af854a3a-2127-422b-91ae-364da2661108\",\"tags\":[\"Patch\"]},{\"url\":\"https://git.kernel.org/stable/c/594e47957f3fe034645e6885393ce96c12286334\",\"source\":\"af854a3a-2127-422b-91ae-364da2661108\",\"tags\":[\"Patch\"]},{\"url\":\"https://git.kernel.org/stable/c/76ce2f9125244e1708d29c1d3f9d1d50b347bda0\",\"source\":\"af854a3a-2127-422b-91ae-364da2661108\",\"tags\":[\"Patch\"]},{\"url\":\"https://git.kernel.org/stable/c/96941f29ebcc1e9cbf570dc903f30374909562f5\",\"source\":\"af854a3a-2127-422b-91ae-364da2661108\",\"tags\":[\"Patch\"]},{\"url\":\"https://git.kernel.org/stable/c/b3722fb69468693555f531cddda5c30444726dac\",\"source\":\"af854a3a-2127-422b-91ae-364da2661108\",\"tags\":[\"Patch\"]},{\"url\":\"https://git.kernel.org/stable/c/f1e197a665c2148ebc25fe09c53689e60afea195\",\"source\":\"af854a3a-2127-422b-91ae-364da2661108\",\"tags\":[\"Patch\"]},{\"url\":\"https://git.kernel.org/stable/c/f251ccef1d864790e5253386e95544420b7cd8f3\",\"source\":\"af854a3a-2127-422b-91ae-364da2661108\",\"tags\":[\"Patch\"]}]}}"
  }
}


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