gsd-2021-47100
Vulnerability from gsd
Modified
2024-03-01 06:04
Details
In the Linux kernel, the following vulnerability has been resolved: ipmi: Fix UAF when uninstall ipmi_si and ipmi_msghandler module Hi, When testing install and uninstall of ipmi_si.ko and ipmi_msghandler.ko, the system crashed. The log as follows: [ 141.087026] BUG: unable to handle kernel paging request at ffffffffc09b3a5a [ 141.087241] PGD 8fe4c0d067 P4D 8fe4c0d067 PUD 8fe4c0f067 PMD 103ad89067 PTE 0 [ 141.087464] Oops: 0010 [#1] SMP NOPTI [ 141.087580] CPU: 67 PID: 668 Comm: kworker/67:1 Kdump: loaded Not tainted 4.18.0.x86_64 #47 [ 141.088009] Workqueue: events 0xffffffffc09b3a40 [ 141.088009] RIP: 0010:0xffffffffc09b3a5a [ 141.088009] Code: Bad RIP value. [ 141.088009] RSP: 0018:ffffb9094e2c3e88 EFLAGS: 00010246 [ 141.088009] RAX: 0000000000000000 RBX: ffff9abfdb1f04a0 RCX: 0000000000000000 [ 141.088009] RDX: 0000000000000000 RSI: 0000000000000246 RDI: 0000000000000246 [ 141.088009] RBP: 0000000000000000 R08: ffff9abfffee3cb8 R09: 00000000000002e1 [ 141.088009] R10: ffffb9094cb73d90 R11: 00000000000f4240 R12: ffff9abfffee8700 [ 141.088009] R13: 0000000000000000 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: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 [ 141.088009] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 [ 141.088009] PKRU: 55555554 [ 141.088009] Call Trace: [ 141.088009] ? process_one_work+0x195/0x390 [ 141.088009] ? worker_thread+0x30/0x390 [ 141.088009] ? process_one_work+0x390/0x390 [ 141.088009] ? kthread+0x10d/0x130 [ 141.088009] ? kthread_flush_work_fn+0x10/0x10 [ 141.088009] ? ret_from_fork+0x35/0x40] BUG: unable to handle kernel paging request at ffffffffc0b28a5a [ 200.223240] PGD 97fe00d067 P4D 97fe00d067 PUD 97fe00f067 PMD a580cbf067 PTE 0 [ 200.223464] Oops: 0010 [#1] SMP NOPTI [ 200.223579] CPU: 63 PID: 664 Comm: kworker/63:1 Kdump: loaded Not tainted 4.18.0.x86_64 #46 [ 200.224008] Workqueue: events 0xffffffffc0b28a40 [ 200.224008] RIP: 0010:0xffffffffc0b28a5a [ 200.224008] Code: Bad RIP value. [ 200.224008] RSP: 0018:ffffbf3c8e2a3e88 EFLAGS: 00010246 [ 200.224008] RAX: 0000000000000000 RBX: ffffa0799ad6bca0 RCX: 0000000000000000 [ 200.224008] RDX: 0000000000000000 RSI: 0000000000000246 RDI: 0000000000000246 [ 200.224008] RBP: 0000000000000000 R08: ffff9fe43fde3cb8 R09: 00000000000000d5 [ 200.224008] R10: ffffbf3c8cb53d90 R11: 00000000000f4240 R12: ffff9fe43fde8700 [ 200.224008] R13: 0000000000000000 R14: ffffa0799ad6bca0 R15: ffffa0799ad6bca8 [ 200.224008] FS: 0000000000000000(0000) GS:ffff9fe43fdc0000(0000) knlGS:0000000000000000 [ 200.224008] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 200.224008] CR2: ffffffffc0b28a30 CR3: 00000097fe00a002 CR4: 00000000007606e0 [ 200.224008] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 [ 200.224008] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 [ 200.224008] PKRU: 55555554 [ 200.224008] Call Trace: [ 200.224008] ? process_one_work+0x195/0x390 [ 200.224008] ? worker_thread+0x30/0x390 [ 200.224008] ? process_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] kernel fault(0x1) notification starting on CPU 63 [ 200.224008] kernel fault(0x1) notification finished on CPU 63 [ 200.224008] CR2: ffffffffc0b28a5a [ 200.224008] ---[ end trace c82a412d93f57412 ]--- The reason is as follows: T1: rmmod ipmi_si. ->ipmi_unregister_smi() -> ipmi_bmc_unregister() -> __ipmi_bmc_unregister() -> kref_put(&bmc->usecount, cleanup_bmc_device); -> schedule_work(&bmc->remove_work); T2: rmmod ipmi_msghandl ---truncated---
Aliases


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{
  "gsd": {
    "metadata": {
      "exploitCode": "unknown",
      "remediation": "unknown",
      "reportConfidence": "confirmed",
      "type": "vulnerability"
    },
    "osvSchema": {
      "aliases": [
        "CVE-2021-47100"
      ],
      "details": "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---",
      "id": "GSD-2021-47100",
      "modified": "2024-03-01T06:04:48.308410Z",
      "schema_version": "1.4.0"
    }
  },
  "namespaces": {
    "cve.org": {
      "CVE_data_meta": {
        "ASSIGNER": "cve@kernel.org",
        "ID": "CVE-2021-47100",
        "STATE": "PUBLIC"
      },
      "affects": {
        "vendor": {
          "vendor_data": [
            {
              "product": {
                "product_data": [
                  {
                    "product_name": "Linux",
                    "version": {
                      "version_data": [
                        {
                          "version_affected": "\u003c",
                          "version_name": "b2cfd8ab4add",
                          "version_value": "925229d55272"
                        },
                        {
                          "version_value": "not down converted",
                          "x_cve_json_5_version_data": {
                            "defaultStatus": "affected",
                            "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"
                              }
                            ]
                          }
                        }
                      ]
                    }
                  }
                ]
              },
              "vendor_name": "Linux"
            }
          ]
        }
      },
      "data_format": "MITRE",
      "data_type": "CVE",
      "data_version": "4.0",
      "description": {
        "description_data": [
          {
            "lang": "eng",
            "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---"
          }
        ]
      },
      "generator": {
        "engine": "bippy-4986f5686161"
      },
      "problemtype": {
        "problemtype_data": [
          {
            "description": [
              {
                "lang": "eng",
                "value": "n/a"
              }
            ]
          }
        ]
      },
      "references": {
        "reference_data": [
          {
            "name": "https://git.kernel.org/stable/c/925229d552724e1bba1abf01d3a0b1318539b012",
            "refsource": "MISC",
            "url": "https://git.kernel.org/stable/c/925229d552724e1bba1abf01d3a0b1318539b012"
          },
          {
            "name": "https://git.kernel.org/stable/c/992649b8b16843d27eb39ceea5f9cf85ffb50a18",
            "refsource": "MISC",
            "url": "https://git.kernel.org/stable/c/992649b8b16843d27eb39ceea5f9cf85ffb50a18"
          },
          {
            "name": "https://git.kernel.org/stable/c/6809da5185141e61401da5b01896b79a4deed1ad",
            "refsource": "MISC",
            "url": "https://git.kernel.org/stable/c/6809da5185141e61401da5b01896b79a4deed1ad"
          },
          {
            "name": "https://git.kernel.org/stable/c/6b3f7e4b10f343f05b5fb513b07a9168fbf1172e",
            "refsource": "MISC",
            "url": "https://git.kernel.org/stable/c/6b3f7e4b10f343f05b5fb513b07a9168fbf1172e"
          },
          {
            "name": "https://git.kernel.org/stable/c/ffb76a86f8096a8206be03b14adda6092e18e275",
            "refsource": "MISC",
            "url": "https://git.kernel.org/stable/c/ffb76a86f8096a8206be03b14adda6092e18e275"
          }
        ]
      }
    },
    "nvd.nist.gov": {
      "cve": {
        "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---"
          }
        ],
        "id": "CVE-2021-47100",
        "lastModified": "2024-03-05T13:41:01.900",
        "metrics": {},
        "published": "2024-03-04T18:15:08.267",
        "references": [
          {
            "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
            "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"
          }
        ],
        "sourceIdentifier": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
        "vulnStatus": "Awaiting Analysis"
      }
    }
  }
}


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