cve-2024-26870
Vulnerability from cvelistv5
Published
2024-04-17 10:27
Modified
2024-08-02 00:21
Severity
Summary
NFSv4.2: fix nfs4_listxattr kernel BUG at mm/usercopy.c:102
References
SourceURLTags
416baaa9-dc9f-4396-8d5f-8c081fb06d67https://git.kernel.org/stable/c/06e828b3f1b206de08ef520fc46a40b22e1869cb
416baaa9-dc9f-4396-8d5f-8c081fb06d67https://git.kernel.org/stable/c/23bfecb4d852751d5e403557dd500bb563313baf
416baaa9-dc9f-4396-8d5f-8c081fb06d67https://git.kernel.org/stable/c/251a658bbfceafb4d58c76b77682c8bf7bcfad65
416baaa9-dc9f-4396-8d5f-8c081fb06d67https://git.kernel.org/stable/c/4403438eaca6e91f02d272211c4d6b045092396b
416baaa9-dc9f-4396-8d5f-8c081fb06d67https://git.kernel.org/stable/c/79cdcc765969d23f4e3d6ea115660c3333498768
416baaa9-dc9f-4396-8d5f-8c081fb06d67https://git.kernel.org/stable/c/80365c9f96015bbf048fdd6c8705d3f8770132bf
416baaa9-dc9f-4396-8d5f-8c081fb06d67https://git.kernel.org/stable/c/9d52865ff28245fc2134da9f99baff603a24407a
416baaa9-dc9f-4396-8d5f-8c081fb06d67https://lists.debian.org/debian-lts-announce/2024/06/msg00017.html
Impacted products
VendorProduct
LinuxLinux
LinuxLinux
Show details on NVD website

To clipboard 

{
  "containers": {
    "adp": [
      {
        "metrics": [
          {
            "other": {
              "content": {
                "id": "CVE-2024-26870",
                "options": [
                  {
                    "Exploitation": "none"
                  },
                  {
                    "Automatable": "no"
                  },
                  {
                    "Technical Impact": "partial"
                  }
                ],
                "role": "CISA Coordinator",
                "timestamp": "2024-05-28T19:56:13.503124Z",
                "version": "2.0.3"
              },
              "type": "ssvc"
            }
          }
        ],
        "providerMetadata": {
          "dateUpdated": "2024-06-04T17:49:37.605Z",
          "orgId": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
          "shortName": "CISA-ADP"
        },
        "title": "CISA ADP Vulnrichment"
      },
      {
        "providerMetadata": {
          "dateUpdated": "2024-08-02T00:21:04.235Z",
          "orgId": "af854a3a-2127-422b-91ae-364da2661108",
          "shortName": "CVE"
        },
        "references": [
          {
            "tags": [
              "x_transferred"
            ],
            "url": "https://git.kernel.org/stable/c/4403438eaca6e91f02d272211c4d6b045092396b"
          },
          {
            "tags": [
              "x_transferred"
            ],
            "url": "https://git.kernel.org/stable/c/9d52865ff28245fc2134da9f99baff603a24407a"
          },
          {
            "tags": [
              "x_transferred"
            ],
            "url": "https://git.kernel.org/stable/c/06e828b3f1b206de08ef520fc46a40b22e1869cb"
          },
          {
            "tags": [
              "x_transferred"
            ],
            "url": "https://git.kernel.org/stable/c/79cdcc765969d23f4e3d6ea115660c3333498768"
          },
          {
            "tags": [
              "x_transferred"
            ],
            "url": "https://git.kernel.org/stable/c/80365c9f96015bbf048fdd6c8705d3f8770132bf"
          },
          {
            "tags": [
              "x_transferred"
            ],
            "url": "https://git.kernel.org/stable/c/23bfecb4d852751d5e403557dd500bb563313baf"
          },
          {
            "tags": [
              "x_transferred"
            ],
            "url": "https://git.kernel.org/stable/c/251a658bbfceafb4d58c76b77682c8bf7bcfad65"
          },
          {
            "tags": [
              "x_transferred"
            ],
            "url": "https://lists.debian.org/debian-lts-announce/2024/06/msg00017.html"
          }
        ],
        "title": "CVE Program Container"
      }
    ],
    "cna": {
      "affected": [
        {
          "defaultStatus": "unaffected",
          "product": "Linux",
          "programFiles": [
            "fs/nfs/nfs4proc.c"
          ],
          "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
          "vendor": "Linux",
          "versions": [
            {
              "lessThan": "4403438eaca6",
              "status": "affected",
              "version": "012a211abd5d",
              "versionType": "git"
            },
            {
              "lessThan": "9d52865ff282",
              "status": "affected",
              "version": "012a211abd5d",
              "versionType": "git"
            },
            {
              "lessThan": "06e828b3f1b2",
              "status": "affected",
              "version": "012a211abd5d",
              "versionType": "git"
            },
            {
              "lessThan": "79cdcc765969",
              "status": "affected",
              "version": "012a211abd5d",
              "versionType": "git"
            },
            {
              "lessThan": "80365c9f9601",
              "status": "affected",
              "version": "012a211abd5d",
              "versionType": "git"
            },
            {
              "lessThan": "23bfecb4d852",
              "status": "affected",
              "version": "012a211abd5d",
              "versionType": "git"
            },
            {
              "lessThan": "251a658bbfce",
              "status": "affected",
              "version": "012a211abd5d",
              "versionType": "git"
            }
          ]
        },
        {
          "defaultStatus": "affected",
          "product": "Linux",
          "programFiles": [
            "fs/nfs/nfs4proc.c"
          ],
          "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
          "vendor": "Linux",
          "versions": [
            {
              "status": "affected",
              "version": "5.9"
            },
            {
              "lessThan": "5.9",
              "status": "unaffected",
              "version": "0",
              "versionType": "custom"
            },
            {
              "lessThanOrEqual": "5.10.*",
              "status": "unaffected",
              "version": "5.10.214",
              "versionType": "custom"
            },
            {
              "lessThanOrEqual": "5.15.*",
              "status": "unaffected",
              "version": "5.15.153",
              "versionType": "custom"
            },
            {
              "lessThanOrEqual": "6.1.*",
              "status": "unaffected",
              "version": "6.1.83",
              "versionType": "custom"
            },
            {
              "lessThanOrEqual": "6.6.*",
              "status": "unaffected",
              "version": "6.6.23",
              "versionType": "custom"
            },
            {
              "lessThanOrEqual": "6.7.*",
              "status": "unaffected",
              "version": "6.7.11",
              "versionType": "custom"
            },
            {
              "lessThanOrEqual": "6.8.*",
              "status": "unaffected",
              "version": "6.8.2",
              "versionType": "custom"
            },
            {
              "lessThanOrEqual": "*",
              "status": "unaffected",
              "version": "6.9",
              "versionType": "original_commit_for_fix"
            }
          ]
        }
      ],
      "descriptions": [
        {
          "lang": "en",
          "value": "In the Linux kernel, the following vulnerability has been resolved:\n\nNFSv4.2: fix nfs4_listxattr kernel BUG at mm/usercopy.c:102\n\nA call to listxattr() with a buffer size = 0 returns the actual\nsize of the buffer needed for a subsequent call. When size \u003e 0,\nnfs4_listxattr() does not return an error because either\ngeneric_listxattr() or nfs4_listxattr_nfs4_label() consumes\nexactly all the bytes then size is 0 when calling\nnfs4_listxattr_nfs4_user() which then triggers the following\nkernel BUG:\n\n  [   99.403778] kernel BUG at mm/usercopy.c:102!\n  [   99.404063] Internal error: Oops - BUG: 00000000f2000800 [#1] SMP\n  [   99.408463] CPU: 0 PID: 3310 Comm: python3 Not tainted 6.6.0-61.fc40.aarch64 #1\n  [   99.415827] Call trace:\n  [   99.415985]  usercopy_abort+0x70/0xa0\n  [   99.416227]  __check_heap_object+0x134/0x158\n  [   99.416505]  check_heap_object+0x150/0x188\n  [   99.416696]  __check_object_size.part.0+0x78/0x168\n  [   99.416886]  __check_object_size+0x28/0x40\n  [   99.417078]  listxattr+0x8c/0x120\n  [   99.417252]  path_listxattr+0x78/0xe0\n  [   99.417476]  __arm64_sys_listxattr+0x28/0x40\n  [   99.417723]  invoke_syscall+0x78/0x100\n  [   99.417929]  el0_svc_common.constprop.0+0x48/0xf0\n  [   99.418186]  do_el0_svc+0x24/0x38\n  [   99.418376]  el0_svc+0x3c/0x110\n  [   99.418554]  el0t_64_sync_handler+0x120/0x130\n  [   99.418788]  el0t_64_sync+0x194/0x198\n  [   99.418994] Code: aa0003e3 d000a3e0 91310000 97f49bdb (d4210000)\n\nIssue is reproduced when generic_listxattr() returns \u0027system.nfs4_acl\u0027,\nthus calling lisxattr() with size = 16 will trigger the bug.\n\nAdd check on nfs4_listxattr() to return ERANGE error when it is\ncalled with size \u003e 0 and the return value is greater than size."
        }
      ],
      "providerMetadata": {
        "dateUpdated": "2024-05-29T05:24:12.327Z",
        "orgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
        "shortName": "Linux"
      },
      "references": [
        {
          "url": "https://git.kernel.org/stable/c/4403438eaca6e91f02d272211c4d6b045092396b"
        },
        {
          "url": "https://git.kernel.org/stable/c/9d52865ff28245fc2134da9f99baff603a24407a"
        },
        {
          "url": "https://git.kernel.org/stable/c/06e828b3f1b206de08ef520fc46a40b22e1869cb"
        },
        {
          "url": "https://git.kernel.org/stable/c/79cdcc765969d23f4e3d6ea115660c3333498768"
        },
        {
          "url": "https://git.kernel.org/stable/c/80365c9f96015bbf048fdd6c8705d3f8770132bf"
        },
        {
          "url": "https://git.kernel.org/stable/c/23bfecb4d852751d5e403557dd500bb563313baf"
        },
        {
          "url": "https://git.kernel.org/stable/c/251a658bbfceafb4d58c76b77682c8bf7bcfad65"
        },
        {
          "url": "https://lists.debian.org/debian-lts-announce/2024/06/msg00017.html"
        }
      ],
      "title": "NFSv4.2: fix nfs4_listxattr kernel BUG at mm/usercopy.c:102",
      "x_generator": {
        "engine": "bippy-a5840b7849dd"
      }
    }
  },
  "cveMetadata": {
    "assignerOrgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
    "assignerShortName": "Linux",
    "cveId": "CVE-2024-26870",
    "datePublished": "2024-04-17T10:27:30.756Z",
    "dateReserved": "2024-02-19T14:20:24.184Z",
    "dateUpdated": "2024-08-02T00:21:04.235Z",
    "state": "PUBLISHED"
  },
  "dataType": "CVE_RECORD",
  "dataVersion": "5.1",
  "meta": {
    "nvd": "{\"cve\":{\"id\":\"CVE-2024-26870\",\"sourceIdentifier\":\"416baaa9-dc9f-4396-8d5f-8c081fb06d67\",\"published\":\"2024-04-17T11:15:09.460\",\"lastModified\":\"2024-06-25T23:15:26.793\",\"vulnStatus\":\"Awaiting Analysis\",\"descriptions\":[{\"lang\":\"en\",\"value\":\"In the Linux kernel, the following vulnerability has been resolved:\\n\\nNFSv4.2: fix nfs4_listxattr kernel BUG at mm/usercopy.c:102\\n\\nA call to listxattr() with a buffer size = 0 returns the actual\\nsize of the buffer needed for a subsequent call. When size \u003e 0,\\nnfs4_listxattr() does not return an error because either\\ngeneric_listxattr() or nfs4_listxattr_nfs4_label() consumes\\nexactly all the bytes then size is 0 when calling\\nnfs4_listxattr_nfs4_user() which then triggers the following\\nkernel BUG:\\n\\n  [   99.403778] kernel BUG at mm/usercopy.c:102!\\n  [   99.404063] Internal error: Oops - BUG: 00000000f2000800 [#1] SMP\\n  [   99.408463] CPU: 0 PID: 3310 Comm: python3 Not tainted 6.6.0-61.fc40.aarch64 #1\\n  [   99.415827] Call trace:\\n  [   99.415985]  usercopy_abort+0x70/0xa0\\n  [   99.416227]  __check_heap_object+0x134/0x158\\n  [   99.416505]  check_heap_object+0x150/0x188\\n  [   99.416696]  __check_object_size.part.0+0x78/0x168\\n  [   99.416886]  __check_object_size+0x28/0x40\\n  [   99.417078]  listxattr+0x8c/0x120\\n  [   99.417252]  path_listxattr+0x78/0xe0\\n  [   99.417476]  __arm64_sys_listxattr+0x28/0x40\\n  [   99.417723]  invoke_syscall+0x78/0x100\\n  [   99.417929]  el0_svc_common.constprop.0+0x48/0xf0\\n  [   99.418186]  do_el0_svc+0x24/0x38\\n  [   99.418376]  el0_svc+0x3c/0x110\\n  [   99.418554]  el0t_64_sync_handler+0x120/0x130\\n  [   99.418788]  el0t_64_sync+0x194/0x198\\n  [   99.418994] Code: aa0003e3 d000a3e0 91310000 97f49bdb (d4210000)\\n\\nIssue is reproduced when generic_listxattr() returns \u0027system.nfs4_acl\u0027,\\nthus calling lisxattr() with size = 16 will trigger the bug.\\n\\nAdd check on nfs4_listxattr() to return ERANGE error when it is\\ncalled with size \u003e 0 and the return value is greater than size.\"},{\"lang\":\"es\",\"value\":\"En el kernel de Linux, se ha resuelto la siguiente vulnerabilidad: NFSv4.2: corrige el ERROR del kernel nfs4_listxattr en mm/usercopy.c:102 Una llamada a listxattr() con un tama\u00f1o de b\u00fafer = 0 devuelve el tama\u00f1o real del b\u00fafer necesario para un convocatoria posterior. Cuando el tama\u00f1o \u0026gt; 0, nfs4_listxattr() no devuelve un error porque generic_listxattr() o nfs4_listxattr_nfs4_label() consume exactamente todos los bytes, entonces el tama\u00f1o es 0 al llamar a nfs4_listxattr_nfs4_user(), lo que luego activa el siguiente ERROR del kernel: [99.403778] ERROR del kernel en mm/usercopy.c:102! [99.404063] Error interno: Ups - ERROR: 00000000f2000800 [#1] SMP [99.408463] CPU: 0 PID: 3310 Comm: python3 No contaminado 6.6.0-61.fc40.aarch64 #1 [ 99.415827] Seguimiento de llamadas: [ 99.41 5985] usercopy_abort+0x70/0xa0 [ 99.416227] __check_heap_object+0x134/0x158 [ 99.416505] check_heap_object+0x150/0x188 [ 99.416696] __check_object_size.part.0+0x78/0x168 [ 99.416886 ] __check_object_size+0x28/0x40 [ 99.417078] listxattr+0x8c/0x120 [ 99.417252] path_listxattr+0x78/0xe0 [ 99.417476] __arm64_sys_listxattr+0x28/0x40 [ 99.417723] invoke_syscall+0x78/0x100 [ 99.417929] 48/0xf0 [ 99.418186] do_el0_svc+0x24/0x38 [ 99.418376] el0_svc+0x3c/ 0x110 [ 99.418554] el0t_64_sync_handler+0x120/0x130 [ 99.418788] el0t_64_sync+0x194/0x198 [ 99.418994] C\u00f3digo: aa0003e3 d000a3e0 91310000 97f49bdb (d42 10000) El problema se reproduce cuando generic_listxattr() devuelve \u0027system.nfs4_acl\u0027, llamando as\u00ed a lisxattr() con tama\u00f1o = 16 activar\u00e1 el error. Agregue verificaci\u00f3n en nfs4_listxattr() para devolver el error ERANGE cuando se llama con un tama\u00f1o \u0026gt; 0 y el valor de retorno es mayor que el tama\u00f1o.\"}],\"metrics\":{},\"references\":[{\"url\":\"https://git.kernel.org/stable/c/06e828b3f1b206de08ef520fc46a40b22e1869cb\",\"source\":\"416baaa9-dc9f-4396-8d5f-8c081fb06d67\"},{\"url\":\"https://git.kernel.org/stable/c/23bfecb4d852751d5e403557dd500bb563313baf\",\"source\":\"416baaa9-dc9f-4396-8d5f-8c081fb06d67\"},{\"url\":\"https://git.kernel.org/stable/c/251a658bbfceafb4d58c76b77682c8bf7bcfad65\",\"source\":\"416baaa9-dc9f-4396-8d5f-8c081fb06d67\"},{\"url\":\"https://git.kernel.org/stable/c/4403438eaca6e91f02d272211c4d6b045092396b\",\"source\":\"416baaa9-dc9f-4396-8d5f-8c081fb06d67\"},{\"url\":\"https://git.kernel.org/stable/c/79cdcc765969d23f4e3d6ea115660c3333498768\",\"source\":\"416baaa9-dc9f-4396-8d5f-8c081fb06d67\"},{\"url\":\"https://git.kernel.org/stable/c/80365c9f96015bbf048fdd6c8705d3f8770132bf\",\"source\":\"416baaa9-dc9f-4396-8d5f-8c081fb06d67\"},{\"url\":\"https://git.kernel.org/stable/c/9d52865ff28245fc2134da9f99baff603a24407a\",\"source\":\"416baaa9-dc9f-4396-8d5f-8c081fb06d67\"},{\"url\":\"https://lists.debian.org/debian-lts-announce/2024/06/msg00017.html\",\"source\":\"416baaa9-dc9f-4396-8d5f-8c081fb06d67\"}]}}"
  }
}


Log in or create an account to share your comment.




Tags
Taxonomy of the tags.