cve-2024-38664
Vulnerability from cvelistv5
Published
2024-06-24 13:50
Modified
2024-12-19 09:06
Severity ?
Summary
In the Linux kernel, the following vulnerability has been resolved: drm: zynqmp_dpsub: Always register bridge We must always register the DRM bridge, since zynqmp_dp_hpd_work_func calls drm_bridge_hpd_notify, which in turn expects hpd_mutex to be initialized. We do this before zynqmp_dpsub_drm_init since that calls drm_bridge_attach. This fixes the following lockdep warning: [ 19.217084] ------------[ cut here ]------------ [ 19.227530] DEBUG_LOCKS_WARN_ON(lock->magic != lock) [ 19.227768] WARNING: CPU: 0 PID: 140 at kernel/locking/mutex.c:582 __mutex_lock+0x4bc/0x550 [ 19.241696] Modules linked in: [ 19.244937] CPU: 0 PID: 140 Comm: kworker/0:4 Not tainted 6.6.20+ #96 [ 19.252046] Hardware name: xlnx,zynqmp (DT) [ 19.256421] Workqueue: events zynqmp_dp_hpd_work_func [ 19.261795] pstate: 60000005 (nZCv daif -PAN -UAO -TCO -DIT -SSBS BTYPE=--) [ 19.269104] pc : __mutex_lock+0x4bc/0x550 [ 19.273364] lr : __mutex_lock+0x4bc/0x550 [ 19.277592] sp : ffffffc085c5bbe0 [ 19.281066] x29: ffffffc085c5bbe0 x28: 0000000000000000 x27: ffffff88009417f8 [ 19.288624] x26: ffffff8800941788 x25: ffffff8800020008 x24: ffffffc082aa3000 [ 19.296227] x23: ffffffc080d90e3c x22: 0000000000000002 x21: 0000000000000000 [ 19.303744] x20: 0000000000000000 x19: ffffff88002f5210 x18: 0000000000000000 [ 19.311295] x17: 6c707369642e3030 x16: 3030613464662072 x15: 0720072007200720 [ 19.318922] x14: 0000000000000000 x13: 284e4f5f4e524157 x12: 0000000000000001 [ 19.326442] x11: 0001ffc085c5b940 x10: 0001ff88003f388b x9 : 0001ff88003f3888 [ 19.334003] x8 : 0001ff88003f3888 x7 : 0000000000000000 x6 : 0000000000000000 [ 19.341537] x5 : 0000000000000000 x4 : 0000000000001668 x3 : 0000000000000000 [ 19.349054] x2 : 0000000000000000 x1 : 0000000000000000 x0 : ffffff88003f3880 [ 19.356581] Call trace: [ 19.359160] __mutex_lock+0x4bc/0x550 [ 19.363032] mutex_lock_nested+0x24/0x30 [ 19.367187] drm_bridge_hpd_notify+0x2c/0x6c [ 19.371698] zynqmp_dp_hpd_work_func+0x44/0x54 [ 19.376364] process_one_work+0x3ac/0x988 [ 19.380660] worker_thread+0x398/0x694 [ 19.384736] kthread+0x1bc/0x1c0 [ 19.388241] ret_from_fork+0x10/0x20 [ 19.392031] irq event stamp: 183 [ 19.395450] hardirqs last enabled at (183): [<ffffffc0800b9278>] finish_task_switch.isra.0+0xa8/0x2d4 [ 19.405140] hardirqs last disabled at (182): [<ffffffc081ad3754>] __schedule+0x714/0xd04 [ 19.413612] softirqs last enabled at (114): [<ffffffc080133de8>] srcu_invoke_callbacks+0x158/0x23c [ 19.423128] softirqs last disabled at (110): [<ffffffc080133de8>] srcu_invoke_callbacks+0x158/0x23c [ 19.432614] ---[ end trace 0000000000000000 ]--- (cherry picked from commit 61ba791c4a7a09a370c45b70a81b8c7d4cf6b2ae)
References
416baaa9-dc9f-4396-8d5f-8c081fb06d67https://git.kernel.org/stable/c/603661357056b5e5ba6d86f505fbc936eff396baMailing List, Patch
416baaa9-dc9f-4396-8d5f-8c081fb06d67https://git.kernel.org/stable/c/6ead3eccf67bc8318b1ce95ed879b2cc05b4fce9Mailing List, Patch
416baaa9-dc9f-4396-8d5f-8c081fb06d67https://git.kernel.org/stable/c/be3f3042391d061cfca2bd22630e0d101acea5fcMailing List, Patch
af854a3a-2127-422b-91ae-364da2661108https://git.kernel.org/stable/c/603661357056b5e5ba6d86f505fbc936eff396baMailing List, Patch
af854a3a-2127-422b-91ae-364da2661108https://git.kernel.org/stable/c/6ead3eccf67bc8318b1ce95ed879b2cc05b4fce9Mailing List, Patch
af854a3a-2127-422b-91ae-364da2661108https://git.kernel.org/stable/c/be3f3042391d061cfca2bd22630e0d101acea5fcMailing List, Patch
Impacted products
Vendor Product Version
Linux Linux Version: 6.2
Show details on NVD website

To clipboard 

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                "id": "CVE-2024-38664",
                "options": [
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                    "Exploitation": "none"
                  },
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                    "Automatable": "no"
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                    "Technical Impact": "partial"
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                "role": "CISA Coordinator",
                "timestamp": "2024-06-24T17:03:52.649243Z",
                "version": "2.0.3"
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          "orgId": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
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          "dateUpdated": "2024-08-02T04:12:25.988Z",
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    "cna": {
      "affected": [
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          "defaultStatus": "unaffected",
          "product": "Linux",
          "programFiles": [
            "drivers/gpu/drm/xlnx/zynqmp_dpsub.c"
          ],
          "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
          "vendor": "Linux",
          "versions": [
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          "product": "Linux",
          "programFiles": [
            "drivers/gpu/drm/xlnx/zynqmp_dpsub.c"
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          "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
          "vendor": "Linux",
          "versions": [
            {
              "status": "affected",
              "version": "6.2"
            },
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              "lessThan": "6.2",
              "status": "unaffected",
              "version": "0",
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              "status": "unaffected",
              "version": "6.6.33",
              "versionType": "semver"
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              "status": "unaffected",
              "version": "6.9.4",
              "versionType": "semver"
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              "version": "6.10",
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      "descriptions": [
        {
          "lang": "en",
          "value": "In the Linux kernel, the following vulnerability has been resolved:\n\ndrm: zynqmp_dpsub: Always register bridge\n\nWe must always register the DRM bridge, since zynqmp_dp_hpd_work_func\ncalls drm_bridge_hpd_notify, which in turn expects hpd_mutex to be\ninitialized. We do this before zynqmp_dpsub_drm_init since that calls\ndrm_bridge_attach. This fixes the following lockdep warning:\n\n[   19.217084] ------------[ cut here ]------------\n[   19.227530] DEBUG_LOCKS_WARN_ON(lock-\u003emagic != lock)\n[   19.227768] WARNING: CPU: 0 PID: 140 at kernel/locking/mutex.c:582 __mutex_lock+0x4bc/0x550\n[   19.241696] Modules linked in:\n[   19.244937] CPU: 0 PID: 140 Comm: kworker/0:4 Not tainted 6.6.20+ #96\n[   19.252046] Hardware name: xlnx,zynqmp (DT)\n[   19.256421] Workqueue: events zynqmp_dp_hpd_work_func\n[   19.261795] pstate: 60000005 (nZCv daif -PAN -UAO -TCO -DIT -SSBS BTYPE=--)\n[   19.269104] pc : __mutex_lock+0x4bc/0x550\n[   19.273364] lr : __mutex_lock+0x4bc/0x550\n[   19.277592] sp : ffffffc085c5bbe0\n[   19.281066] x29: ffffffc085c5bbe0 x28: 0000000000000000 x27: ffffff88009417f8\n[   19.288624] x26: ffffff8800941788 x25: ffffff8800020008 x24: ffffffc082aa3000\n[   19.296227] x23: ffffffc080d90e3c x22: 0000000000000002 x21: 0000000000000000\n[   19.303744] x20: 0000000000000000 x19: ffffff88002f5210 x18: 0000000000000000\n[   19.311295] x17: 6c707369642e3030 x16: 3030613464662072 x15: 0720072007200720\n[   19.318922] x14: 0000000000000000 x13: 284e4f5f4e524157 x12: 0000000000000001\n[   19.326442] x11: 0001ffc085c5b940 x10: 0001ff88003f388b x9 : 0001ff88003f3888\n[   19.334003] x8 : 0001ff88003f3888 x7 : 0000000000000000 x6 : 0000000000000000\n[   19.341537] x5 : 0000000000000000 x4 : 0000000000001668 x3 : 0000000000000000\n[   19.349054] x2 : 0000000000000000 x1 : 0000000000000000 x0 : ffffff88003f3880\n[   19.356581] Call trace:\n[   19.359160]  __mutex_lock+0x4bc/0x550\n[   19.363032]  mutex_lock_nested+0x24/0x30\n[   19.367187]  drm_bridge_hpd_notify+0x2c/0x6c\n[   19.371698]  zynqmp_dp_hpd_work_func+0x44/0x54\n[   19.376364]  process_one_work+0x3ac/0x988\n[   19.380660]  worker_thread+0x398/0x694\n[   19.384736]  kthread+0x1bc/0x1c0\n[   19.388241]  ret_from_fork+0x10/0x20\n[   19.392031] irq event stamp: 183\n[   19.395450] hardirqs last  enabled at (183): [\u003cffffffc0800b9278\u003e] finish_task_switch.isra.0+0xa8/0x2d4\n[   19.405140] hardirqs last disabled at (182): [\u003cffffffc081ad3754\u003e] __schedule+0x714/0xd04\n[   19.413612] softirqs last  enabled at (114): [\u003cffffffc080133de8\u003e] srcu_invoke_callbacks+0x158/0x23c\n[   19.423128] softirqs last disabled at (110): [\u003cffffffc080133de8\u003e] srcu_invoke_callbacks+0x158/0x23c\n[   19.432614] ---[ end trace 0000000000000000 ]---\n\n(cherry picked from commit 61ba791c4a7a09a370c45b70a81b8c7d4cf6b2ae)"
        }
      ],
      "providerMetadata": {
        "dateUpdated": "2024-12-19T09:06:22.211Z",
        "orgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
        "shortName": "Linux"
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      "references": [
        {
          "url": "https://git.kernel.org/stable/c/6ead3eccf67bc8318b1ce95ed879b2cc05b4fce9"
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          "url": "https://git.kernel.org/stable/c/603661357056b5e5ba6d86f505fbc936eff396ba"
        },
        {
          "url": "https://git.kernel.org/stable/c/be3f3042391d061cfca2bd22630e0d101acea5fc"
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      ],
      "title": "drm: zynqmp_dpsub: Always register bridge",
      "x_generator": {
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  "cveMetadata": {
    "assignerOrgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
    "assignerShortName": "Linux",
    "cveId": "CVE-2024-38664",
    "datePublished": "2024-06-24T13:50:52.371Z",
    "dateReserved": "2024-06-21T11:16:40.607Z",
    "dateUpdated": "2024-12-19T09:06:22.211Z",
    "state": "PUBLISHED"
  },
  "dataType": "CVE_RECORD",
  "dataVersion": "5.1",
  "vulnerability-lookup:meta": {
    "nvd": "{\"cve\":{\"id\":\"CVE-2024-38664\",\"sourceIdentifier\":\"416baaa9-dc9f-4396-8d5f-8c081fb06d67\",\"published\":\"2024-06-24T14:15:12.707\",\"lastModified\":\"2024-11-21T09:26:35.220\",\"vulnStatus\":\"Modified\",\"cveTags\":[],\"descriptions\":[{\"lang\":\"en\",\"value\":\"In the Linux kernel, the following vulnerability has been resolved:\\n\\ndrm: zynqmp_dpsub: Always register bridge\\n\\nWe must always register the DRM bridge, since zynqmp_dp_hpd_work_func\\ncalls drm_bridge_hpd_notify, which in turn expects hpd_mutex to be\\ninitialized. We do this before zynqmp_dpsub_drm_init since that calls\\ndrm_bridge_attach. This fixes the following lockdep warning:\\n\\n[   19.217084] ------------[ cut here ]------------\\n[   19.227530] DEBUG_LOCKS_WARN_ON(lock-\u003emagic != lock)\\n[   19.227768] WARNING: CPU: 0 PID: 140 at kernel/locking/mutex.c:582 __mutex_lock+0x4bc/0x550\\n[   19.241696] Modules linked in:\\n[   19.244937] CPU: 0 PID: 140 Comm: kworker/0:4 Not tainted 6.6.20+ #96\\n[   19.252046] Hardware name: xlnx,zynqmp (DT)\\n[   19.256421] Workqueue: events zynqmp_dp_hpd_work_func\\n[   19.261795] pstate: 60000005 (nZCv daif -PAN -UAO -TCO -DIT -SSBS BTYPE=--)\\n[   19.269104] pc : __mutex_lock+0x4bc/0x550\\n[   19.273364] lr : __mutex_lock+0x4bc/0x550\\n[   19.277592] sp : ffffffc085c5bbe0\\n[   19.281066] x29: ffffffc085c5bbe0 x28: 0000000000000000 x27: ffffff88009417f8\\n[   19.288624] x26: ffffff8800941788 x25: ffffff8800020008 x24: ffffffc082aa3000\\n[   19.296227] x23: ffffffc080d90e3c x22: 0000000000000002 x21: 0000000000000000\\n[   19.303744] x20: 0000000000000000 x19: ffffff88002f5210 x18: 0000000000000000\\n[   19.311295] x17: 6c707369642e3030 x16: 3030613464662072 x15: 0720072007200720\\n[   19.318922] x14: 0000000000000000 x13: 284e4f5f4e524157 x12: 0000000000000001\\n[   19.326442] x11: 0001ffc085c5b940 x10: 0001ff88003f388b x9 : 0001ff88003f3888\\n[   19.334003] x8 : 0001ff88003f3888 x7 : 0000000000000000 x6 : 0000000000000000\\n[   19.341537] x5 : 0000000000000000 x4 : 0000000000001668 x3 : 0000000000000000\\n[   19.349054] x2 : 0000000000000000 x1 : 0000000000000000 x0 : ffffff88003f3880\\n[   19.356581] Call trace:\\n[   19.359160]  __mutex_lock+0x4bc/0x550\\n[   19.363032]  mutex_lock_nested+0x24/0x30\\n[   19.367187]  drm_bridge_hpd_notify+0x2c/0x6c\\n[   19.371698]  zynqmp_dp_hpd_work_func+0x44/0x54\\n[   19.376364]  process_one_work+0x3ac/0x988\\n[   19.380660]  worker_thread+0x398/0x694\\n[   19.384736]  kthread+0x1bc/0x1c0\\n[   19.388241]  ret_from_fork+0x10/0x20\\n[   19.392031] irq event stamp: 183\\n[   19.395450] hardirqs last  enabled at (183): [\u003cffffffc0800b9278\u003e] finish_task_switch.isra.0+0xa8/0x2d4\\n[   19.405140] hardirqs last disabled at (182): [\u003cffffffc081ad3754\u003e] __schedule+0x714/0xd04\\n[   19.413612] softirqs last  enabled at (114): [\u003cffffffc080133de8\u003e] srcu_invoke_callbacks+0x158/0x23c\\n[   19.423128] softirqs last disabled at (110): [\u003cffffffc080133de8\u003e] srcu_invoke_callbacks+0x158/0x23c\\n[   19.432614] ---[ end trace 0000000000000000 ]---\\n\\n(cherry picked from commit 61ba791c4a7a09a370c45b70a81b8c7d4cf6b2ae)\"},{\"lang\":\"es\",\"value\":\"En el kernel de Linux se ha resuelto la siguiente vulnerabilidad: drm: zynqmp_dpsub: Registrar siempre puente Siempre debemos registrar el puente DRM, ya que zynqmp_dp_hpd_work_func llama a drm_bridge_hpd_notify, que a su vez espera que hpd_mutex se inicialice. Hacemos esto antes de zynqmp_dpsub_drm_init ya que llama a drm_bridge_attach. Esto corrige la siguiente advertencia de bloqueo: [19.217084] ------------[ cortar aqu\u00ed ]------------ [ 19.227530] DEBUG_LOCKS_WARN_ON(lock-\u0026gt;magic != lock ) [ 19.227768] ADVERTENCIA: CPU: 0 PID: 140 en kernel/locking/mutex.c:582 __mutex_lock+0x4bc/0x550 [ 19.241696] M\u00f3dulos vinculados en: [ 19.244937] CPU: 0 PID: 140 Comm: kworker/0:4 No contaminado 6.6.20+ #96 [19.252046] Nombre de hardware: xlnx,zynqmp (DT) [19.256421] Cola de trabajo: eventos zynqmp_dp_hpd_work_func [19.261795] pstate: 60000005 (nZCv daif -PAN -UAO -TCO -DIT -SSBS PE=-- ) [ 19.269104] pc : __mutex_lock+0x4bc/0x550 [ 19.273364] lr : __mutex_lock+0x4bc/0x550 [ 19.277592] sp : ffffffc085c5bbe0 [ 19.281066] x29: ffffffc085c5bbe0 8: 0000000000000000 x27: ffffff88009417f8 [ 19.288624] x26: ffffff8800941788 x25: ffffff8800020008 x24: ffffffc082aa3000 [ 19.296227] x23: ffffffc080d90e3c x22: 0000000000000002 x21: 00000000000000000 [ 19.303744] x20: 0000000000000000 x19: ffffff88002f5210 x18: 0000000000000000 [ 19.311295] x17: 6c707369642e3030 x16: 3030613464662072 x15: 0720072007200720 [ 19.318922] 4: 0000000000000000 x13: 284e4f5f4e524157 x12: 0000000000000001 [ 19.326442] x11: 0001ffc085c5b940 x10: 0001ff88003f388b x9: 0001ff88003f3888 [19.334003] x8: 0001ff88003f3888 x7: 0000000000000000 x6 : 0000000000000000 [ 19.341537] x5 : 0000000000000000 x4 : 0000000000001668 x3 : 0000000000000000 [ 19.349054] x2 : 0000000000000000 x1 : 0000000000000000 x0 : ffffff88003f3880 [ 19.356581] Seguimiento de llamadas: [ 19.359160] __mutex_lock+0x4bc/0x550 [ 19.363032] mutex_lock_nested+0x24/0x30 [ 19.367187] drm_bridge_hpd_notify+0x2c/0x6c [ zynqmp_dp_hpd_work_func +0x44/0x54 [ 19.376364] proceso_un_trabajo+0x3ac/0x988 [ 19.380660] hilo_trabajador+0x398/ 0x694 [19.384736] kthread+0x1bc/0x1c0 [19.388241] ret_from_fork+0x10/0x20 [19.392031] sello de evento irq: 183 [19.395450] hardirqs habilitado por \u00faltima vez en (183): [] terminar_task_switch.isra.0+0xa8/0x2d4 [ 19.405140] hardirqs deshabilitado por \u00faltima vez en (182): [] __schedule+0x714/0xd04 [ 19.413612] softirqs habilitado por \u00faltima vez en (114): [] srcu_invoke_callbacks+0x158/0x23c 19.423128] softirqs se deshabilit\u00f3 por \u00faltima vez en ( 110): [] srcu_invoke_callbacks+0x158/0x23c [ 19.432614] ---[ end trace 0000000000000000 ]--- (seleccionado de el commit 61ba791c4a7a09a370c45b70a81b8c7d4 cf6b2ae)\"}],\"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:H/I:H/A:H\",\"baseScore\":7.8,\"baseSeverity\":\"HIGH\",\"attackVector\":\"LOCAL\",\"attackComplexity\":\"LOW\",\"privilegesRequired\":\"LOW\",\"userInteraction\":\"NONE\",\"scope\":\"UNCHANGED\",\"confidentialityImpact\":\"HIGH\",\"integrityImpact\":\"HIGH\",\"availabilityImpact\":\"HIGH\"},\"exploitabilityScore\":1.8,\"impactScore\":5.9}]},\"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\":\"6.2\",\"matchCriteriaId\":\"108695B6-7133-4B6C-80AF-0F66880FE858\"},{\"vulnerable\":true,\"criteria\":\"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*\",\"versionStartIncluding\":\"6.6\",\"versionEndExcluding\":\"6.6.33\",\"matchCriteriaId\":\"53BC60D9-65A5-4D8F-96C8-149F09214DBD\"},{\"vulnerable\":true,\"criteria\":\"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*\",\"versionStartIncluding\":\"6.9\",\"versionEndExcluding\":\"6.9.4\",\"matchCriteriaId\":\"A500F935-F0ED-4DC7-AD02-9D7C365D13AE\"},{\"vulnerable\":true,\"criteria\":\"cpe:2.3:o:linux:linux_kernel:6.10.0:rc1:*:*:*:*:*:*\",\"matchCriteriaId\":\"C40DD2D9-90E3-4E95-9F1A-E7C680F11F2A\"}]}]}],\"references\":[{\"url\":\"https://git.kernel.org/stable/c/603661357056b5e5ba6d86f505fbc936eff396ba\",\"source\":\"416baaa9-dc9f-4396-8d5f-8c081fb06d67\",\"tags\":[\"Mailing List\",\"Patch\"]},{\"url\":\"https://git.kernel.org/stable/c/6ead3eccf67bc8318b1ce95ed879b2cc05b4fce9\",\"source\":\"416baaa9-dc9f-4396-8d5f-8c081fb06d67\",\"tags\":[\"Mailing List\",\"Patch\"]},{\"url\":\"https://git.kernel.org/stable/c/be3f3042391d061cfca2bd22630e0d101acea5fc\",\"source\":\"416baaa9-dc9f-4396-8d5f-8c081fb06d67\",\"tags\":[\"Mailing List\",\"Patch\"]},{\"url\":\"https://git.kernel.org/stable/c/603661357056b5e5ba6d86f505fbc936eff396ba\",\"source\":\"af854a3a-2127-422b-91ae-364da2661108\",\"tags\":[\"Mailing List\",\"Patch\"]},{\"url\":\"https://git.kernel.org/stable/c/6ead3eccf67bc8318b1ce95ed879b2cc05b4fce9\",\"source\":\"af854a3a-2127-422b-91ae-364da2661108\",\"tags\":[\"Mailing List\",\"Patch\"]},{\"url\":\"https://git.kernel.org/stable/c/be3f3042391d061cfca2bd22630e0d101acea5fc\",\"source\":\"af854a3a-2127-422b-91ae-364da2661108\",\"tags\":[\"Mailing List\",\"Patch\"]}]}}"
  }
}


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