cve-2024-50133
Vulnerability from cvelistv5
Published
2024-11-05 17:10
Modified
2024-12-19 09:33
Severity ?
Summary
In the Linux kernel, the following vulnerability has been resolved: LoongArch: Don't crash in stack_top() for tasks without vDSO Not all tasks have a vDSO mapped, for example kthreads never do. If such a task ever ends up calling stack_top(), it will derefence the NULL vdso pointer and crash. This can for example happen when using kunit: [<9000000000203874>] stack_top+0x58/0xa8 [<90000000002956cc>] arch_pick_mmap_layout+0x164/0x220 [<90000000003c284c>] kunit_vm_mmap_init+0x108/0x12c [<90000000003c1fbc>] __kunit_add_resource+0x38/0x8c [<90000000003c2704>] kunit_vm_mmap+0x88/0xc8 [<9000000000410b14>] usercopy_test_init+0xbc/0x25c [<90000000003c1db4>] kunit_try_run_case+0x5c/0x184 [<90000000003c3d54>] kunit_generic_run_threadfn_adapter+0x24/0x48 [<900000000022e4bc>] kthread+0xc8/0xd4 [<9000000000200ce8>] ret_from_kernel_thread+0xc/0xa4
References
416baaa9-dc9f-4396-8d5f-8c081fb06d67https://git.kernel.org/stable/c/041cc3860b06770357876d1114d615333b0fbf31Patch
416baaa9-dc9f-4396-8d5f-8c081fb06d67https://git.kernel.org/stable/c/134475a9ab8487527238d270639a8cb74c10aab2Patch
416baaa9-dc9f-4396-8d5f-8c081fb06d67https://git.kernel.org/stable/c/a67d4a02bf43e15544179895ede7d5f97b84b550Patch
416baaa9-dc9f-4396-8d5f-8c081fb06d67https://git.kernel.org/stable/c/a94c197d4d749954dfaa37e907fcc8c04e4aad7ePatch
Impacted products
Vendor Product Version
Linux Linux Version: 5.19
Show details on NVD website

To clipboard 

{
  "containers": {
    "cna": {
      "affected": [
        {
          "defaultStatus": "unaffected",
          "product": "Linux",
          "programFiles": [
            "arch/loongarch/kernel/process.c"
          ],
          "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
          "vendor": "Linux",
          "versions": [
            {
              "lessThan": "a67d4a02bf43e15544179895ede7d5f97b84b550",
              "status": "affected",
              "version": "803b0fc5c3f2baa6e54978cd576407896f789b08",
              "versionType": "git"
            },
            {
              "lessThan": "a94c197d4d749954dfaa37e907fcc8c04e4aad7e",
              "status": "affected",
              "version": "803b0fc5c3f2baa6e54978cd576407896f789b08",
              "versionType": "git"
            },
            {
              "lessThan": "041cc3860b06770357876d1114d615333b0fbf31",
              "status": "affected",
              "version": "803b0fc5c3f2baa6e54978cd576407896f789b08",
              "versionType": "git"
            },
            {
              "lessThan": "134475a9ab8487527238d270639a8cb74c10aab2",
              "status": "affected",
              "version": "803b0fc5c3f2baa6e54978cd576407896f789b08",
              "versionType": "git"
            }
          ]
        },
        {
          "defaultStatus": "affected",
          "product": "Linux",
          "programFiles": [
            "arch/loongarch/kernel/process.c"
          ],
          "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
          "vendor": "Linux",
          "versions": [
            {
              "status": "affected",
              "version": "5.19"
            },
            {
              "lessThan": "5.19",
              "status": "unaffected",
              "version": "0",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "6.1.*",
              "status": "unaffected",
              "version": "6.1.115",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "6.6.*",
              "status": "unaffected",
              "version": "6.6.59",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "6.11.*",
              "status": "unaffected",
              "version": "6.11.6",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "*",
              "status": "unaffected",
              "version": "6.12",
              "versionType": "original_commit_for_fix"
            }
          ]
        }
      ],
      "descriptions": [
        {
          "lang": "en",
          "value": "In the Linux kernel, the following vulnerability has been resolved:\n\nLoongArch: Don\u0027t crash in stack_top() for tasks without vDSO\n\nNot all tasks have a vDSO mapped, for example kthreads never do. If such\na task ever ends up calling stack_top(), it will derefence the NULL vdso\npointer and crash.\n\nThis can for example happen when using kunit:\n\n\t[\u003c9000000000203874\u003e] stack_top+0x58/0xa8\n\t[\u003c90000000002956cc\u003e] arch_pick_mmap_layout+0x164/0x220\n\t[\u003c90000000003c284c\u003e] kunit_vm_mmap_init+0x108/0x12c\n\t[\u003c90000000003c1fbc\u003e] __kunit_add_resource+0x38/0x8c\n\t[\u003c90000000003c2704\u003e] kunit_vm_mmap+0x88/0xc8\n\t[\u003c9000000000410b14\u003e] usercopy_test_init+0xbc/0x25c\n\t[\u003c90000000003c1db4\u003e] kunit_try_run_case+0x5c/0x184\n\t[\u003c90000000003c3d54\u003e] kunit_generic_run_threadfn_adapter+0x24/0x48\n\t[\u003c900000000022e4bc\u003e] kthread+0xc8/0xd4\n\t[\u003c9000000000200ce8\u003e] ret_from_kernel_thread+0xc/0xa4"
        }
      ],
      "providerMetadata": {
        "dateUpdated": "2024-12-19T09:33:51.843Z",
        "orgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
        "shortName": "Linux"
      },
      "references": [
        {
          "url": "https://git.kernel.org/stable/c/a67d4a02bf43e15544179895ede7d5f97b84b550"
        },
        {
          "url": "https://git.kernel.org/stable/c/a94c197d4d749954dfaa37e907fcc8c04e4aad7e"
        },
        {
          "url": "https://git.kernel.org/stable/c/041cc3860b06770357876d1114d615333b0fbf31"
        },
        {
          "url": "https://git.kernel.org/stable/c/134475a9ab8487527238d270639a8cb74c10aab2"
        }
      ],
      "title": "LoongArch: Don\u0027t crash in stack_top() for tasks without vDSO",
      "x_generator": {
        "engine": "bippy-5f407fcff5a0"
      }
    }
  },
  "cveMetadata": {
    "assignerOrgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
    "assignerShortName": "Linux",
    "cveId": "CVE-2024-50133",
    "datePublished": "2024-11-05T17:10:58.264Z",
    "dateReserved": "2024-10-21T19:36:19.955Z",
    "dateUpdated": "2024-12-19T09:33:51.843Z",
    "state": "PUBLISHED"
  },
  "dataType": "CVE_RECORD",
  "dataVersion": "5.1",
  "meta": {
    "nvd": "{\"cve\":{\"id\":\"CVE-2024-50133\",\"sourceIdentifier\":\"416baaa9-dc9f-4396-8d5f-8c081fb06d67\",\"published\":\"2024-11-05T18:15:16.030\",\"lastModified\":\"2024-11-07T21:17:35.673\",\"vulnStatus\":\"Analyzed\",\"cveTags\":[],\"descriptions\":[{\"lang\":\"en\",\"value\":\"In the Linux kernel, the following vulnerability has been resolved:\\n\\nLoongArch: Don\u0027t crash in stack_top() for tasks without vDSO\\n\\nNot all tasks have a vDSO mapped, for example kthreads never do. If such\\na task ever ends up calling stack_top(), it will derefence the NULL vdso\\npointer and crash.\\n\\nThis can for example happen when using kunit:\\n\\n\\t[\u003c9000000000203874\u003e] stack_top+0x58/0xa8\\n\\t[\u003c90000000002956cc\u003e] arch_pick_mmap_layout+0x164/0x220\\n\\t[\u003c90000000003c284c\u003e] kunit_vm_mmap_init+0x108/0x12c\\n\\t[\u003c90000000003c1fbc\u003e] __kunit_add_resource+0x38/0x8c\\n\\t[\u003c90000000003c2704\u003e] kunit_vm_mmap+0x88/0xc8\\n\\t[\u003c9000000000410b14\u003e] usercopy_test_init+0xbc/0x25c\\n\\t[\u003c90000000003c1db4\u003e] kunit_try_run_case+0x5c/0x184\\n\\t[\u003c90000000003c3d54\u003e] kunit_generic_run_threadfn_adapter+0x24/0x48\\n\\t[\u003c900000000022e4bc\u003e] kthread+0xc8/0xd4\\n\\t[\u003c9000000000200ce8\u003e] ret_from_kernel_thread+0xc/0xa4\"},{\"lang\":\"es\",\"value\":\"En el kernel de Linux, se ha resuelto la siguiente vulnerabilidad: LoongArch: No se bloquea en stack_top() para tareas sin vDSO No todas las tareas tienen un vDSO asignado, por ejemplo, kthreads nunca lo tiene. Si alguna vez una tarea de este tipo termina llamando a stack_top(), desreferenciar\u00e1 el puntero vdso NULL y se bloquear\u00e1. Esto puede suceder, por ejemplo, al usar kunit: [\u0026lt;9000000000203874\u0026gt;] stack_top+0x58/0xa8 [\u0026lt;90000000002956cc\u0026gt;] arch_pick_mmap_layout+0x164/0x220 [\u0026lt;90000000003c284c\u0026gt;] kunit_vm_mmap_init+0x108/0x12c [\u0026lt;90000000003c1fbc\u0026gt;] __kunit_add_resource+0x38/0x8c [\u0026lt;90000000003c2704\u0026gt;] kunit_vm_mmap+0x88/0xc8 [\u0026lt;9000000000410b14\u0026gt;] usercopy_test_init+0xbc/0x25c [\u0026lt;90000000003c1db4\u0026gt;] kunit_try_run_case+0x5c/0x184 [\u0026lt;90000000003c3d54\u0026gt;] kunit_generic_run_threadfn_adapter+0x24/0x48 [\u0026lt;900000000022e4bc\u0026gt;] kthread+0xc8/0xd4 [\u0026lt;9000000000200ce8\u0026gt;] ret_from_kernel_thread+0xc/0xa4\"}],\"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-476\"}]}],\"configurations\":[{\"nodes\":[{\"operator\":\"OR\",\"negate\":false,\"cpeMatch\":[{\"vulnerable\":true,\"criteria\":\"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*\",\"versionStartIncluding\":\"5.19\",\"versionEndExcluding\":\"6.1.115\",\"matchCriteriaId\":\"B049DFAE-9BF4-40E0-BBF0-BF8F84C42A75\"},{\"vulnerable\":true,\"criteria\":\"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*\",\"versionStartIncluding\":\"6.2\",\"versionEndExcluding\":\"6.6.59\",\"matchCriteriaId\":\"5D15CA59-D15C-4ACD-8B03-A072DEAD2081\"},{\"vulnerable\":true,\"criteria\":\"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*\",\"versionStartIncluding\":\"6.7\",\"versionEndExcluding\":\"6.11.6\",\"matchCriteriaId\":\"E4486B12-007B-4794-9857-F07145637AA1\"},{\"vulnerable\":true,\"criteria\":\"cpe:2.3:o:linux:linux_kernel:6.12:rc1:*:*:*:*:*:*\",\"matchCriteriaId\":\"7F361E1D-580F-4A2D-A509-7615F73167A1\"},{\"vulnerable\":true,\"criteria\":\"cpe:2.3:o:linux:linux_kernel:6.12:rc2:*:*:*:*:*:*\",\"matchCriteriaId\":\"925478D0-3E3D-4E6F-ACD5-09F28D5DF82C\"},{\"vulnerable\":true,\"criteria\":\"cpe:2.3:o:linux:linux_kernel:6.12:rc3:*:*:*:*:*:*\",\"matchCriteriaId\":\"3C95E234-D335-4B6C-96BF-E2CEBD8654ED\"},{\"vulnerable\":true,\"criteria\":\"cpe:2.3:o:linux:linux_kernel:6.12:rc4:*:*:*:*:*:*\",\"matchCriteriaId\":\"E0F717D8-3014-4F84-8086-0124B2111379\"}]}]}],\"references\":[{\"url\":\"https://git.kernel.org/stable/c/041cc3860b06770357876d1114d615333b0fbf31\",\"source\":\"416baaa9-dc9f-4396-8d5f-8c081fb06d67\",\"tags\":[\"Patch\"]},{\"url\":\"https://git.kernel.org/stable/c/134475a9ab8487527238d270639a8cb74c10aab2\",\"source\":\"416baaa9-dc9f-4396-8d5f-8c081fb06d67\",\"tags\":[\"Patch\"]},{\"url\":\"https://git.kernel.org/stable/c/a67d4a02bf43e15544179895ede7d5f97b84b550\",\"source\":\"416baaa9-dc9f-4396-8d5f-8c081fb06d67\",\"tags\":[\"Patch\"]},{\"url\":\"https://git.kernel.org/stable/c/a94c197d4d749954dfaa37e907fcc8c04e4aad7e\",\"source\":\"416baaa9-dc9f-4396-8d5f-8c081fb06d67\",\"tags\":[\"Patch\"]}]}}"
  }
}


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