gsd-2021-47080
Vulnerability from gsd
Modified
2024-03-01 06:04
Details
In the Linux kernel, the following vulnerability has been resolved: RDMA/core: Prevent divide-by-zero error triggered by the user The user_entry_size is supplied by the user and later used as a denominator to calculate number of entries. The zero supplied by the user will trigger the following divide-by-zero error: divide error: 0000 [#1] SMP KASAN PTI CPU: 4 PID: 497 Comm: c_repro Not tainted 5.13.0-rc1+ #281 Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS rel-1.13.0-0-gf21b5a4aeb02-prebuilt.qemu.org 04/01/2014 RIP: 0010:ib_uverbs_handler_UVERBS_METHOD_QUERY_GID_TABLE+0x1b1/0x510 Code: 87 59 03 00 00 e8 9f ab 1e ff 48 8d bd a8 00 00 00 e8 d3 70 41 ff 44 0f b7 b5 a8 00 00 00 e8 86 ab 1e ff 31 d2 4c 89 f0 31 ff <49> f7 f5 48 89 d6 48 89 54 24 10 48 89 04 24 e8 1b ad 1e ff 48 8b RSP: 0018:ffff88810416f828 EFLAGS: 00010246 RAX: 0000000000000008 RBX: 1ffff1102082df09 RCX: ffffffff82183f3d RDX: 0000000000000000 RSI: ffff888105f2da00 RDI: 0000000000000000 RBP: ffff88810416fa98 R08: 0000000000000001 R09: ffffed102082df5f R10: ffff88810416faf7 R11: ffffed102082df5e R12: 0000000000000000 R13: 0000000000000000 R14: 0000000000000008 R15: ffff88810416faf0 FS: 00007f5715efa740(0000) GS:ffff88811a700000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 0000000020000840 CR3: 000000010c2e0001 CR4: 0000000000370ea0 DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 Call Trace: ? ib_uverbs_handler_UVERBS_METHOD_INFO_HANDLES+0x4b0/0x4b0 ib_uverbs_cmd_verbs+0x1546/0x1940 ib_uverbs_ioctl+0x186/0x240 __x64_sys_ioctl+0x38a/0x1220 do_syscall_64+0x3f/0x80 entry_SYSCALL_64_after_hwframe+0x44/0xae
Aliases


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{
  "gsd": {
    "metadata": {
      "exploitCode": "unknown",
      "remediation": "unknown",
      "reportConfidence": "confirmed",
      "type": "vulnerability"
    },
    "osvSchema": {
      "aliases": [
        "CVE-2021-47080"
      ],
      "details": "In the Linux kernel, the following vulnerability has been resolved:\n\nRDMA/core: Prevent divide-by-zero error triggered by the user\n\nThe user_entry_size is supplied by the user and later used as a\ndenominator to calculate number of entries. The zero supplied by the user\nwill trigger the following divide-by-zero error:\n\n divide error: 0000 [#1] SMP KASAN PTI\n CPU: 4 PID: 497 Comm: c_repro Not tainted 5.13.0-rc1+ #281\n Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS rel-1.13.0-0-gf21b5a4aeb02-prebuilt.qemu.org 04/01/2014\n RIP: 0010:ib_uverbs_handler_UVERBS_METHOD_QUERY_GID_TABLE+0x1b1/0x510\n Code: 87 59 03 00 00 e8 9f ab 1e ff 48 8d bd a8 00 00 00 e8 d3 70 41 ff 44 0f b7 b5 a8 00 00 00 e8 86 ab 1e ff 31 d2 4c 89 f0 31 ff \u003c49\u003e f7 f5 48 89 d6 48 89 54 24 10 48 89 04 24 e8 1b ad 1e ff 48 8b\n RSP: 0018:ffff88810416f828 EFLAGS: 00010246\n RAX: 0000000000000008 RBX: 1ffff1102082df09 RCX: ffffffff82183f3d\n RDX: 0000000000000000 RSI: ffff888105f2da00 RDI: 0000000000000000\n RBP: ffff88810416fa98 R08: 0000000000000001 R09: ffffed102082df5f\n R10: ffff88810416faf7 R11: ffffed102082df5e R12: 0000000000000000\n R13: 0000000000000000 R14: 0000000000000008 R15: ffff88810416faf0\n FS:  00007f5715efa740(0000) GS:ffff88811a700000(0000) knlGS:0000000000000000\n CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033\n CR2: 0000000020000840 CR3: 000000010c2e0001 CR4: 0000000000370ea0\n DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000\n DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400\n Call Trace:\n  ? ib_uverbs_handler_UVERBS_METHOD_INFO_HANDLES+0x4b0/0x4b0\n  ib_uverbs_cmd_verbs+0x1546/0x1940\n  ib_uverbs_ioctl+0x186/0x240\n  __x64_sys_ioctl+0x38a/0x1220\n  do_syscall_64+0x3f/0x80\n  entry_SYSCALL_64_after_hwframe+0x44/0xae",
      "id": "GSD-2021-47080",
      "modified": "2024-03-01T06:04:48.332774Z",
      "schema_version": "1.4.0"
    }
  },
  "namespaces": {
    "cve.org": {
      "CVE_data_meta": {
        "ASSIGNER": "cve@kernel.org",
        "ID": "CVE-2021-47080",
        "STATE": "PUBLIC"
      },
      "affects": {
        "vendor": {
          "vendor_data": [
            {
              "product": {
                "product_data": [
                  {
                    "product_name": "Linux",
                    "version": {
                      "version_data": [
                        {
                          "version_affected": "\u003c",
                          "version_name": "9f85cbe50aa0",
                          "version_value": "66ab7fcdac34"
                        },
                        {
                          "version_value": "not down converted",
                          "x_cve_json_5_version_data": {
                            "defaultStatus": "affected",
                            "versions": [
                              {
                                "status": "affected",
                                "version": "5.10"
                              },
                              {
                                "lessThan": "5.10",
                                "status": "unaffected",
                                "version": "0",
                                "versionType": "custom"
                              },
                              {
                                "lessThanOrEqual": "5.10.*",
                                "status": "unaffected",
                                "version": "5.10.40",
                                "versionType": "custom"
                              },
                              {
                                "lessThanOrEqual": "5.12.*",
                                "status": "unaffected",
                                "version": "5.12.7",
                                "versionType": "custom"
                              },
                              {
                                "lessThanOrEqual": "*",
                                "status": "unaffected",
                                "version": "5.13",
                                "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\nRDMA/core: Prevent divide-by-zero error triggered by the user\n\nThe user_entry_size is supplied by the user and later used as a\ndenominator to calculate number of entries. The zero supplied by the user\nwill trigger the following divide-by-zero error:\n\n divide error: 0000 [#1] SMP KASAN PTI\n CPU: 4 PID: 497 Comm: c_repro Not tainted 5.13.0-rc1+ #281\n Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS rel-1.13.0-0-gf21b5a4aeb02-prebuilt.qemu.org 04/01/2014\n RIP: 0010:ib_uverbs_handler_UVERBS_METHOD_QUERY_GID_TABLE+0x1b1/0x510\n Code: 87 59 03 00 00 e8 9f ab 1e ff 48 8d bd a8 00 00 00 e8 d3 70 41 ff 44 0f b7 b5 a8 00 00 00 e8 86 ab 1e ff 31 d2 4c 89 f0 31 ff \u003c49\u003e f7 f5 48 89 d6 48 89 54 24 10 48 89 04 24 e8 1b ad 1e ff 48 8b\n RSP: 0018:ffff88810416f828 EFLAGS: 00010246\n RAX: 0000000000000008 RBX: 1ffff1102082df09 RCX: ffffffff82183f3d\n RDX: 0000000000000000 RSI: ffff888105f2da00 RDI: 0000000000000000\n RBP: ffff88810416fa98 R08: 0000000000000001 R09: ffffed102082df5f\n R10: ffff88810416faf7 R11: ffffed102082df5e R12: 0000000000000000\n R13: 0000000000000000 R14: 0000000000000008 R15: ffff88810416faf0\n FS:  00007f5715efa740(0000) GS:ffff88811a700000(0000) knlGS:0000000000000000\n CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033\n CR2: 0000000020000840 CR3: 000000010c2e0001 CR4: 0000000000370ea0\n DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000\n DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400\n Call Trace:\n  ? ib_uverbs_handler_UVERBS_METHOD_INFO_HANDLES+0x4b0/0x4b0\n  ib_uverbs_cmd_verbs+0x1546/0x1940\n  ib_uverbs_ioctl+0x186/0x240\n  __x64_sys_ioctl+0x38a/0x1220\n  do_syscall_64+0x3f/0x80\n  entry_SYSCALL_64_after_hwframe+0x44/0xae"
          }
        ]
      },
      "generator": {
        "engine": "bippy-4986f5686161"
      },
      "problemtype": {
        "problemtype_data": [
          {
            "description": [
              {
                "lang": "eng",
                "value": "n/a"
              }
            ]
          }
        ]
      },
      "references": {
        "reference_data": [
          {
            "name": "https://git.kernel.org/stable/c/66ab7fcdac34b890017f04f391507ef5b2b89a13",
            "refsource": "MISC",
            "url": "https://git.kernel.org/stable/c/66ab7fcdac34b890017f04f391507ef5b2b89a13"
          },
          {
            "name": "https://git.kernel.org/stable/c/e6871b4270c05f8b212e7d98aee82b357972c80a",
            "refsource": "MISC",
            "url": "https://git.kernel.org/stable/c/e6871b4270c05f8b212e7d98aee82b357972c80a"
          },
          {
            "name": "https://git.kernel.org/stable/c/54d87913f147a983589923c7f651f97de9af5be1",
            "refsource": "MISC",
            "url": "https://git.kernel.org/stable/c/54d87913f147a983589923c7f651f97de9af5be1"
          }
        ]
      }
    },
    "nvd.nist.gov": {
      "cve": {
        "descriptions": [
          {
            "lang": "en",
            "value": "In the Linux kernel, the following vulnerability has been resolved:\n\nRDMA/core: Prevent divide-by-zero error triggered by the user\n\nThe user_entry_size is supplied by the user and later used as a\ndenominator to calculate number of entries. The zero supplied by the user\nwill trigger the following divide-by-zero error:\n\n divide error: 0000 [#1] SMP KASAN PTI\n CPU: 4 PID: 497 Comm: c_repro Not tainted 5.13.0-rc1+ #281\n Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS rel-1.13.0-0-gf21b5a4aeb02-prebuilt.qemu.org 04/01/2014\n RIP: 0010:ib_uverbs_handler_UVERBS_METHOD_QUERY_GID_TABLE+0x1b1/0x510\n Code: 87 59 03 00 00 e8 9f ab 1e ff 48 8d bd a8 00 00 00 e8 d3 70 41 ff 44 0f b7 b5 a8 00 00 00 e8 86 ab 1e ff 31 d2 4c 89 f0 31 ff \u003c49\u003e f7 f5 48 89 d6 48 89 54 24 10 48 89 04 24 e8 1b ad 1e ff 48 8b\n RSP: 0018:ffff88810416f828 EFLAGS: 00010246\n RAX: 0000000000000008 RBX: 1ffff1102082df09 RCX: ffffffff82183f3d\n RDX: 0000000000000000 RSI: ffff888105f2da00 RDI: 0000000000000000\n RBP: ffff88810416fa98 R08: 0000000000000001 R09: ffffed102082df5f\n R10: ffff88810416faf7 R11: ffffed102082df5e R12: 0000000000000000\n R13: 0000000000000000 R14: 0000000000000008 R15: ffff88810416faf0\n FS:  00007f5715efa740(0000) GS:ffff88811a700000(0000) knlGS:0000000000000000\n CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033\n CR2: 0000000020000840 CR3: 000000010c2e0001 CR4: 0000000000370ea0\n DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000\n DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400\n Call Trace:\n  ? ib_uverbs_handler_UVERBS_METHOD_INFO_HANDLES+0x4b0/0x4b0\n  ib_uverbs_cmd_verbs+0x1546/0x1940\n  ib_uverbs_ioctl+0x186/0x240\n  __x64_sys_ioctl+0x38a/0x1220\n  do_syscall_64+0x3f/0x80\n  entry_SYSCALL_64_after_hwframe+0x44/0xae"
          }
        ],
        "id": "CVE-2021-47080",
        "lastModified": "2024-03-01T22:22:25.913",
        "metrics": {},
        "published": "2024-03-01T22:15:47.433",
        "references": [
          {
            "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
            "url": "https://git.kernel.org/stable/c/54d87913f147a983589923c7f651f97de9af5be1"
          },
          {
            "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
            "url": "https://git.kernel.org/stable/c/66ab7fcdac34b890017f04f391507ef5b2b89a13"
          },
          {
            "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
            "url": "https://git.kernel.org/stable/c/e6871b4270c05f8b212e7d98aee82b357972c80a"
          }
        ],
        "sourceIdentifier": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
        "vulnStatus": "Awaiting Analysis"
      }
    }
  }
}


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