CVE-2021-47100
Vulnerability from cvelistv5
Published
2024-03-04 18:10
Modified
2024-08-04 05:24
Severity
Summary
ipmi: Fix UAF when uninstall ipmi_si and ipmi_msghandler module
References
SourceURLTags
416baaa9-dc9f-4396-8d5f-8c081fb06d67https://git.kernel.org/stable/c/6809da5185141e61401da5b01896b79a4deed1ad
416baaa9-dc9f-4396-8d5f-8c081fb06d67https://git.kernel.org/stable/c/6b3f7e4b10f343f05b5fb513b07a9168fbf1172e
416baaa9-dc9f-4396-8d5f-8c081fb06d67https://git.kernel.org/stable/c/925229d552724e1bba1abf01d3a0b1318539b012
416baaa9-dc9f-4396-8d5f-8c081fb06d67https://git.kernel.org/stable/c/992649b8b16843d27eb39ceea5f9cf85ffb50a18
416baaa9-dc9f-4396-8d5f-8c081fb06d67https://git.kernel.org/stable/c/ffb76a86f8096a8206be03b14adda6092e18e275
Impacted products
VendorProduct
LinuxLinux
LinuxLinux
Show details on NVD website

To clipboard 

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                "id": "CVE-2021-47100",
                "options": [
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                    "Exploitation": "none"
                  },
                  {
                    "Automatable": "no"
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                  {
                    "Technical Impact": "partial"
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                "role": "CISA Coordinator",
                "timestamp": "2024-06-26T20:38:38.889138Z",
                "version": "2.0.3"
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        "providerMetadata": {
          "dateUpdated": "2024-06-26T20:38:49.099Z",
          "orgId": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
          "shortName": "CISA-ADP"
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        "title": "CISA ADP Vulnrichment"
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          "dateUpdated": "2024-08-04T05:24:39.796Z",
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        "title": "CVE Program Container"
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    "cna": {
      "affected": [
        {
          "defaultStatus": "unaffected",
          "product": "Linux",
          "programFiles": [
            "drivers/char/ipmi/ipmi_msghandler.c"
          ],
          "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
          "vendor": "Linux",
          "versions": [
            {
              "lessThan": "925229d55272",
              "status": "affected",
              "version": "b2cfd8ab4add",
              "versionType": "git"
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            {
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              "status": "affected",
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              "status": "affected",
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            {
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              "status": "affected",
              "version": "b2cfd8ab4add",
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            {
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              "status": "affected",
              "version": "b2cfd8ab4add",
              "versionType": "git"
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        },
        {
          "defaultStatus": "affected",
          "product": "Linux",
          "programFiles": [
            "drivers/char/ipmi/ipmi_msghandler.c"
          ],
          "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
          "vendor": "Linux",
          "versions": [
            {
              "status": "affected",
              "version": "4.15"
            },
            {
              "lessThan": "4.15",
              "status": "unaffected",
              "version": "0",
              "versionType": "custom"
            },
            {
              "lessThanOrEqual": "4.19.*",
              "status": "unaffected",
              "version": "4.19.223",
              "versionType": "custom"
            },
            {
              "lessThanOrEqual": "5.4.*",
              "status": "unaffected",
              "version": "5.4.169",
              "versionType": "custom"
            },
            {
              "lessThanOrEqual": "5.10.*",
              "status": "unaffected",
              "version": "5.10.89",
              "versionType": "custom"
            },
            {
              "lessThanOrEqual": "5.15.*",
              "status": "unaffected",
              "version": "5.15.12",
              "versionType": "custom"
            },
            {
              "lessThanOrEqual": "*",
              "status": "unaffected",
              "version": "5.16",
              "versionType": "original_commit_for_fix"
            }
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      ],
      "descriptions": [
        {
          "lang": "en",
          "value": "In the Linux kernel, the following vulnerability has been resolved:\n\nipmi: Fix UAF when uninstall ipmi_si and ipmi_msghandler module\n\nHi,\n\nWhen testing install and uninstall of ipmi_si.ko and ipmi_msghandler.ko,\nthe system crashed.\n\nThe log as follows:\n[  141.087026] BUG: unable to handle kernel paging request at ffffffffc09b3a5a\n[  141.087241] PGD 8fe4c0d067 P4D 8fe4c0d067 PUD 8fe4c0f067 PMD 103ad89067 PTE 0\n[  141.087464] Oops: 0010 [#1] SMP NOPTI\n[  141.087580] CPU: 67 PID: 668 Comm: kworker/67:1 Kdump: loaded Not tainted 4.18.0.x86_64 #47\n[  141.088009] Workqueue: events 0xffffffffc09b3a40\n[  141.088009] RIP: 0010:0xffffffffc09b3a5a\n[  141.088009] Code: Bad RIP value.\n[  141.088009] RSP: 0018:ffffb9094e2c3e88 EFLAGS: 00010246\n[  141.088009] RAX: 0000000000000000 RBX: ffff9abfdb1f04a0 RCX: 0000000000000000\n[  141.088009] RDX: 0000000000000000 RSI: 0000000000000246 RDI: 0000000000000246\n[  141.088009] RBP: 0000000000000000 R08: ffff9abfffee3cb8 R09: 00000000000002e1\n[  141.088009] R10: ffffb9094cb73d90 R11: 00000000000f4240 R12: ffff9abfffee8700\n[  141.088009] R13: 0000000000000000 R14: ffff9abfdb1f04a0 R15: ffff9abfdb1f04a8\n[  141.088009] FS:  0000000000000000(0000) GS:ffff9abfffec0000(0000) knlGS:0000000000000000\n[  141.088009] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033\n[  141.088009] CR2: ffffffffc09b3a30 CR3: 0000008fe4c0a001 CR4: 00000000007606e0\n[  141.088009] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000\n[  141.088009] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400\n[  141.088009] PKRU: 55555554\n[  141.088009] Call Trace:\n[  141.088009]  ? process_one_work+0x195/0x390\n[  141.088009]  ? worker_thread+0x30/0x390\n[  141.088009]  ? process_one_work+0x390/0x390\n[  141.088009]  ? kthread+0x10d/0x130\n[  141.088009]  ? kthread_flush_work_fn+0x10/0x10\n[  141.088009]  ? ret_from_fork+0x35/0x40] BUG: unable to handle kernel paging request at ffffffffc0b28a5a\n[  200.223240] PGD 97fe00d067 P4D 97fe00d067 PUD 97fe00f067 PMD a580cbf067 PTE 0\n[  200.223464] Oops: 0010 [#1] SMP NOPTI\n[  200.223579] CPU: 63 PID: 664 Comm: kworker/63:1 Kdump: loaded Not tainted 4.18.0.x86_64 #46\n[  200.224008] Workqueue: events 0xffffffffc0b28a40\n[  200.224008] RIP: 0010:0xffffffffc0b28a5a\n[  200.224008] Code: Bad RIP value.\n[  200.224008] RSP: 0018:ffffbf3c8e2a3e88 EFLAGS: 00010246\n[  200.224008] RAX: 0000000000000000 RBX: ffffa0799ad6bca0 RCX: 0000000000000000\n[  200.224008] RDX: 0000000000000000 RSI: 0000000000000246 RDI: 0000000000000246\n[  200.224008] RBP: 0000000000000000 R08: ffff9fe43fde3cb8 R09: 00000000000000d5\n[  200.224008] R10: ffffbf3c8cb53d90 R11: 00000000000f4240 R12: ffff9fe43fde8700\n[  200.224008] R13: 0000000000000000 R14: ffffa0799ad6bca0 R15: ffffa0799ad6bca8\n[  200.224008] FS:  0000000000000000(0000) GS:ffff9fe43fdc0000(0000) knlGS:0000000000000000\n[  200.224008] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033\n[  200.224008] CR2: ffffffffc0b28a30 CR3: 00000097fe00a002 CR4: 00000000007606e0\n[  200.224008] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000\n[  200.224008] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400\n[  200.224008] PKRU: 55555554\n[  200.224008] Call Trace:\n[  200.224008]  ? process_one_work+0x195/0x390\n[  200.224008]  ? worker_thread+0x30/0x390\n[  200.224008]  ? process_one_work+0x390/0x390\n[  200.224008]  ? kthread+0x10d/0x130\n[  200.224008]  ? kthread_flush_work_fn+0x10/0x10\n[  200.224008]  ? ret_from_fork+0x35/0x40\n[  200.224008] kernel fault(0x1) notification starting on CPU 63\n[  200.224008] kernel fault(0x1) notification finished on CPU 63\n[  200.224008] CR2: ffffffffc0b28a5a\n[  200.224008] ---[ end trace c82a412d93f57412 ]---\n\nThe reason is as follows:\nT1: rmmod ipmi_si.\n    -\u003eipmi_unregister_smi()\n        -\u003e ipmi_bmc_unregister()\n            -\u003e __ipmi_bmc_unregister()\n                -\u003e kref_put(\u0026bmc-\u003eusecount, cleanup_bmc_device);\n                    -\u003e schedule_work(\u0026bmc-\u003eremove_work);\n\nT2: rmmod ipmi_msghandl\n---truncated---"
        }
      ],
      "providerMetadata": {
        "dateUpdated": "2024-05-29T05:02:06.753Z",
        "orgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
        "shortName": "Linux"
      },
      "references": [
        {
          "url": "https://git.kernel.org/stable/c/925229d552724e1bba1abf01d3a0b1318539b012"
        },
        {
          "url": "https://git.kernel.org/stable/c/992649b8b16843d27eb39ceea5f9cf85ffb50a18"
        },
        {
          "url": "https://git.kernel.org/stable/c/6809da5185141e61401da5b01896b79a4deed1ad"
        },
        {
          "url": "https://git.kernel.org/stable/c/6b3f7e4b10f343f05b5fb513b07a9168fbf1172e"
        },
        {
          "url": "https://git.kernel.org/stable/c/ffb76a86f8096a8206be03b14adda6092e18e275"
        }
      ],
      "title": "ipmi: Fix UAF when uninstall ipmi_si and ipmi_msghandler module",
      "x_generator": {
        "engine": "bippy-a5840b7849dd"
      }
    }
  },
  "cveMetadata": {
    "assignerOrgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
    "assignerShortName": "Linux",
    "cveId": "CVE-2021-47100",
    "datePublished": "2024-03-04T18:10:52.602Z",
    "dateReserved": "2024-02-29T22:33:44.301Z",
    "dateUpdated": "2024-08-04T05:24:39.796Z",
    "state": "PUBLISHED"
  },
  "dataType": "CVE_RECORD",
  "dataVersion": "5.1",
  "meta": {
    "nvd": "{\"cve\":{\"id\":\"CVE-2021-47100\",\"sourceIdentifier\":\"416baaa9-dc9f-4396-8d5f-8c081fb06d67\",\"published\":\"2024-03-04T18:15:08.267\",\"lastModified\":\"2024-03-05T13:41:01.900\",\"vulnStatus\":\"Awaiting Analysis\",\"descriptions\":[{\"lang\":\"en\",\"value\":\"In the Linux kernel, the following vulnerability has been resolved:\\n\\nipmi: Fix UAF when uninstall ipmi_si and ipmi_msghandler module\\n\\nHi,\\n\\nWhen testing install and uninstall of ipmi_si.ko and ipmi_msghandler.ko,\\nthe system crashed.\\n\\nThe log as follows:\\n[  141.087026] BUG: unable to handle kernel paging request at ffffffffc09b3a5a\\n[  141.087241] PGD 8fe4c0d067 P4D 8fe4c0d067 PUD 8fe4c0f067 PMD 103ad89067 PTE 0\\n[  141.087464] Oops: 0010 [#1] SMP NOPTI\\n[  141.087580] CPU: 67 PID: 668 Comm: kworker/67:1 Kdump: loaded Not tainted 4.18.0.x86_64 #47\\n[  141.088009] Workqueue: events 0xffffffffc09b3a40\\n[  141.088009] RIP: 0010:0xffffffffc09b3a5a\\n[  141.088009] Code: Bad RIP value.\\n[  141.088009] RSP: 0018:ffffb9094e2c3e88 EFLAGS: 00010246\\n[  141.088009] RAX: 0000000000000000 RBX: ffff9abfdb1f04a0 RCX: 0000000000000000\\n[  141.088009] RDX: 0000000000000000 RSI: 0000000000000246 RDI: 0000000000000246\\n[  141.088009] RBP: 0000000000000000 R08: ffff9abfffee3cb8 R09: 00000000000002e1\\n[  141.088009] R10: ffffb9094cb73d90 R11: 00000000000f4240 R12: ffff9abfffee8700\\n[  141.088009] R13: 0000000000000000 R14: ffff9abfdb1f04a0 R15: ffff9abfdb1f04a8\\n[  141.088009] FS:  0000000000000000(0000) GS:ffff9abfffec0000(0000) knlGS:0000000000000000\\n[  141.088009] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033\\n[  141.088009] CR2: ffffffffc09b3a30 CR3: 0000008fe4c0a001 CR4: 00000000007606e0\\n[  141.088009] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000\\n[  141.088009] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400\\n[  141.088009] PKRU: 55555554\\n[  141.088009] Call Trace:\\n[  141.088009]  ? process_one_work+0x195/0x390\\n[  141.088009]  ? worker_thread+0x30/0x390\\n[  141.088009]  ? process_one_work+0x390/0x390\\n[  141.088009]  ? kthread+0x10d/0x130\\n[  141.088009]  ? kthread_flush_work_fn+0x10/0x10\\n[  141.088009]  ? ret_from_fork+0x35/0x40] BUG: unable to handle kernel paging request at ffffffffc0b28a5a\\n[  200.223240] PGD 97fe00d067 P4D 97fe00d067 PUD 97fe00f067 PMD a580cbf067 PTE 0\\n[  200.223464] Oops: 0010 [#1] SMP NOPTI\\n[  200.223579] CPU: 63 PID: 664 Comm: kworker/63:1 Kdump: loaded Not tainted 4.18.0.x86_64 #46\\n[  200.224008] Workqueue: events 0xffffffffc0b28a40\\n[  200.224008] RIP: 0010:0xffffffffc0b28a5a\\n[  200.224008] Code: Bad RIP value.\\n[  200.224008] RSP: 0018:ffffbf3c8e2a3e88 EFLAGS: 00010246\\n[  200.224008] RAX: 0000000000000000 RBX: ffffa0799ad6bca0 RCX: 0000000000000000\\n[  200.224008] RDX: 0000000000000000 RSI: 0000000000000246 RDI: 0000000000000246\\n[  200.224008] RBP: 0000000000000000 R08: ffff9fe43fde3cb8 R09: 00000000000000d5\\n[  200.224008] R10: ffffbf3c8cb53d90 R11: 00000000000f4240 R12: ffff9fe43fde8700\\n[  200.224008] R13: 0000000000000000 R14: ffffa0799ad6bca0 R15: ffffa0799ad6bca8\\n[  200.224008] FS:  0000000000000000(0000) GS:ffff9fe43fdc0000(0000) knlGS:0000000000000000\\n[  200.224008] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033\\n[  200.224008] CR2: ffffffffc0b28a30 CR3: 00000097fe00a002 CR4: 00000000007606e0\\n[  200.224008] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000\\n[  200.224008] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400\\n[  200.224008] PKRU: 55555554\\n[  200.224008] Call Trace:\\n[  200.224008]  ? process_one_work+0x195/0x390\\n[  200.224008]  ? worker_thread+0x30/0x390\\n[  200.224008]  ? process_one_work+0x390/0x390\\n[  200.224008]  ? kthread+0x10d/0x130\\n[  200.224008]  ? kthread_flush_work_fn+0x10/0x10\\n[  200.224008]  ? ret_from_fork+0x35/0x40\\n[  200.224008] kernel fault(0x1) notification starting on CPU 63\\n[  200.224008] kernel fault(0x1) notification finished on CPU 63\\n[  200.224008] CR2: ffffffffc0b28a5a\\n[  200.224008] ---[ end trace c82a412d93f57412 ]---\\n\\nThe reason is as follows:\\nT1: rmmod ipmi_si.\\n    -\u003eipmi_unregister_smi()\\n        -\u003e ipmi_bmc_unregister()\\n            -\u003e __ipmi_bmc_unregister()\\n                -\u003e kref_put(\u0026bmc-\u003eusecount, cleanup_bmc_device);\\n                    -\u003e schedule_work(\u0026bmc-\u003eremove_work);\\n\\nT2: rmmod ipmi_msghandl\\n---truncated---\"},{\"lang\":\"es\",\"value\":\"En el kernel de Linux, se resolvi\u00f3 la siguiente vulnerabilidad: ipmi: corrige UAF al desinstalar los m\u00f3dulos ipmi_si e ipmi_msghandler Hola. Al probar la instalaci\u00f3n y desinstalaci\u00f3n de ipmi_si.ko e ipmi_msghandler.ko, el sistema fall\u00f3. El registro es el siguiente: [141.087026] ERROR: no se puede manejar la solicitud de paginaci\u00f3n del kernel en ffffffffc09b3a5a [141.087241] PGD 8fe4c0d067 P4D 8fe4c0d067 PUD 8fe4c0f067 PMD 103ad89067 PTE 0 [141.087464] Vaya s: 0010 [#1] SMP NOPTI [ 141.087580] CPU: 67 PID : 668 Comm: kworker/67:1 Kdump: cargado No contaminado 4.18.0.x86_64 #47 [ 141.088009] Cola de trabajo: eventos 0xffffffffc09b3a40 [ 141.088009] RIP: 0010:0xffffffffc09b3a5a [ 141.088009] C\u00f3digo: Valor RIP incorrecto. [ 141.088009] RSP: 0018:ffffb9094e2c3e88 EFLAGS: 00010246 [ 141.088009] RAX: 00000000000000000 RBX: ffff9abfdb1f04a0 RCX: 0000000000000000 [ 14 1.088009] RDX: 0000000000000000 RSI: 0000000000000246 RDI: 0000000000000246 [ 141.088009] RBP: 000000000000000000 R08: ffff9abfffee3cb8 R09: 00 000000000002e1 [141.088009] R10: ffffb9094cb73d90 R11: 00000000000f4240 R12: ffff9abfffee8700 [ 141.088009] R13: 00000000000000000 R14: ffff9abfdb1f04a0 R15: ffff9abfdb1f04a8 [ 141.088009] FS: 0000000000000000(0000) GS:ffff9abfffec0000(0000) knlGS:0000000000000000 [ 141.088009] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 141.088009] CR2: ffffffffc09b3a30 CR3: 0000008fe4c0a001 CR4: 00000000007606e0 [ 141.088009] DR0: 00000000000000 00 DR1: 0000000000000000 DR2: 00000000000000000 [ 141.088009] DR3: 0000000000000000 DR6: 00000000ffe0ff0 DR7: 0000000000000400 [ 141.088009] PKRU: 55555554 [ 141.088009] Llamar Seguimiento: [141.088009]? proceso_one_work+0x195/0x390 [141.088009]? hilo_trabajador+0x30/0x390 [141.088009]? proceso_one_work+0x390/0x390 [141.088009]? kthread+0x10d/0x130 [141.088009]? kthread_flush_work_fn+0x10/0x10 [141.088009]? ret_from_fork+0x35/0x40] ERROR: no se puede manejar la solicitud de paginaci\u00f3n del kernel en ffffffffc0b28a5a [200.223240] PGD 97fe00d067 P4D 97fe00d067 PUD 97fe00f067 PMD a580cbf067 PTE 0 [200.223464] Vaya : 0010 [#1] SMP NOPTI [ 200.223579] CPU: 63 PID: 664 Comm: kworker/63:1 Kdump: cargado No contaminado 4.18.0.x86_64 #46 [200.224008] Cola de trabajo: eventos 0xffffffffc0b28a40 [200.224008] RIP: 0010:0xffffffffc0b28a5a [200.224008] C\u00f3digo: RIP incorrecto valor. [ 200.224008] RSP: 0018:ffffbf3c8e2a3e88 EFLAGS: 00010246 [ 200.224008] RAX: 00000000000000000 RBX: ffffa0799ad6bca0 RCX: 0000000000000000 [ 200 .224008] RDX: 0000000000000000 RSI: 00000000000000246 RDI: 0000000000000246 [ 200.224008] RBP: 00000000000000000 R08: ffff9fe43fde3cb8 R09: 00 000000000000d5 [200.224008] R10: fffffbf3c8cb53d90 R11: 00000000000f4240 R12: ffff9fe43fde8700 [ 200.224008] R13: 00000000000000000 R14: ffffa0799ad6bca0 R15: ffffa0799ad6bca8 [ 200.224008] FS: 0000000000000000(0000) GS:ffff9fe43fdc0000(0000) knlGS:00000000000000000 [ 200.224008] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 200.224008] CR2: ffffffffc0b28a30 CR3: 00000097fe00a002 CR4: 00000000007606e0 [ 200.224008] DR0: 00000000000000 00 DR1: 0000000000000000 DR2: 00000000000000000 [ 200.224008] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 [ 200.224008] PKRU: 55555554 [ 200.224008] Llamar Seguimiento: [200.224008] ? proceso_one_work+0x195/0x390 [200.224008]? hilo_trabajador+0x30/0x390 [200.224008]? proceso_one_work+0x390/0x390 [200.224008]? kthread+0x10d/0x130 [200.224008]? kthread_flush_work_fn+0x10/0x10 [200.224008]? ret_from_fork+0x35/0x40 [200.224008] Notificaci\u00f3n de falla del kernel (0x1) que comienza en la CPU 63 [200.224008] Notificaci\u00f3n de falla del kernel (0x1) finalizada en la CPU 63 [200.224008] CR2: ffffffffc0b28a5a [200.224008] ---[ end trace c82a41 2d93f57412 ]-- - El motivo es el siguiente: T1: rmmod ipmi_si. -\u0026gt;ipmi_unregister_smi() -\u0026gt; ipmi_bmc_unregister() -\u0026gt; __ipmi_bmc_unregister() -\u0026gt; kref_put(\u0026amp;bmc-\u0026gt;usecount, cleanup_bmc_device); -\u0026gt; programar_trabajo(\u0026amp;bmc-\u0026gt;remove_work); T2: rmmod ipmi_msghandl\"}],\"metrics\":{},\"references\":[{\"url\":\"https://git.kernel.org/stable/c/6809da5185141e61401da5b01896b79a4deed1ad\",\"source\":\"416baaa9-dc9f-4396-8d5f-8c081fb06d67\"},{\"url\":\"https://git.kernel.org/stable/c/6b3f7e4b10f343f05b5fb513b07a9168fbf1172e\",\"source\":\"416baaa9-dc9f-4396-8d5f-8c081fb06d67\"},{\"url\":\"https://git.kernel.org/stable/c/925229d552724e1bba1abf01d3a0b1318539b012\",\"source\":\"416baaa9-dc9f-4396-8d5f-8c081fb06d67\"},{\"url\":\"https://git.kernel.org/stable/c/992649b8b16843d27eb39ceea5f9cf85ffb50a18\",\"source\":\"416baaa9-dc9f-4396-8d5f-8c081fb06d67\"},{\"url\":\"https://git.kernel.org/stable/c/ffb76a86f8096a8206be03b14adda6092e18e275\",\"source\":\"416baaa9-dc9f-4396-8d5f-8c081fb06d67\"}]}}"
  }
}


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