cve-2024-39510
Vulnerability from cvelistv5
Published
2024-07-12 12:20
Modified
2024-11-05 09:32
Severity ?
Summary
cachefiles: fix slab-use-after-free in cachefiles_ondemand_daemon_read()
References
416baaa9-dc9f-4396-8d5f-8c081fb06d67https://git.kernel.org/stable/c/3958679c49152391209b32be3357193300a51abdPatch
416baaa9-dc9f-4396-8d5f-8c081fb06d67https://git.kernel.org/stable/c/93064676a2820420a2d37d7c8289f277fe20793dPatch
416baaa9-dc9f-4396-8d5f-8c081fb06d67https://git.kernel.org/stable/c/cb55625f8eb9d2de8be4da0c4580d48cbb32058ePatch
416baaa9-dc9f-4396-8d5f-8c081fb06d67https://git.kernel.org/stable/c/da4a827416066191aafeeccee50a8836a826ba10Patch
af854a3a-2127-422b-91ae-364da2661108https://git.kernel.org/stable/c/3958679c49152391209b32be3357193300a51abdPatch
af854a3a-2127-422b-91ae-364da2661108https://git.kernel.org/stable/c/93064676a2820420a2d37d7c8289f277fe20793dPatch
af854a3a-2127-422b-91ae-364da2661108https://git.kernel.org/stable/c/cb55625f8eb9d2de8be4da0c4580d48cbb32058ePatch
af854a3a-2127-422b-91ae-364da2661108https://git.kernel.org/stable/c/da4a827416066191aafeeccee50a8836a826ba10Patch
Impacted products
Vendor Product Version
Linux Linux Version: 6.8
Show details on NVD website

To clipboard 

{
  "containers": {
    "adp": [
      {
        "providerMetadata": {
          "dateUpdated": "2024-08-02T04:26:15.474Z",
          "orgId": "af854a3a-2127-422b-91ae-364da2661108",
          "shortName": "CVE"
        },
        "references": [
          {
            "tags": [
              "x_transferred"
            ],
            "url": "https://git.kernel.org/stable/c/cb55625f8eb9d2de8be4da0c4580d48cbb32058e"
          },
          {
            "tags": [
              "x_transferred"
            ],
            "url": "https://git.kernel.org/stable/c/3958679c49152391209b32be3357193300a51abd"
          },
          {
            "tags": [
              "x_transferred"
            ],
            "url": "https://git.kernel.org/stable/c/93064676a2820420a2d37d7c8289f277fe20793d"
          },
          {
            "tags": [
              "x_transferred"
            ],
            "url": "https://git.kernel.org/stable/c/da4a827416066191aafeeccee50a8836a826ba10"
          }
        ],
        "title": "CVE Program Container"
      },
      {
        "metrics": [
          {
            "other": {
              "content": {
                "id": "CVE-2024-39510",
                "options": [
                  {
                    "Exploitation": "none"
                  },
                  {
                    "Automatable": "no"
                  },
                  {
                    "Technical Impact": "partial"
                  }
                ],
                "role": "CISA Coordinator",
                "timestamp": "2024-09-10T17:06:40.868593Z",
                "version": "2.0.3"
              },
              "type": "ssvc"
            }
          }
        ],
        "providerMetadata": {
          "dateUpdated": "2024-09-11T17:34:38.916Z",
          "orgId": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
          "shortName": "CISA-ADP"
        },
        "title": "CISA ADP Vulnrichment"
      }
    ],
    "cna": {
      "affected": [
        {
          "defaultStatus": "unaffected",
          "product": "Linux",
          "programFiles": [
            "fs/cachefiles/ondemand.c",
            "include/trace/events/cachefiles.h"
          ],
          "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
          "vendor": "Linux",
          "versions": [
            {
              "lessThan": "cb55625f8eb9",
              "status": "affected",
              "version": "f17443d52d80",
              "versionType": "git"
            },
            {
              "lessThan": "3958679c4915",
              "status": "affected",
              "version": "f740fd943bb1",
              "versionType": "git"
            },
            {
              "lessThan": "93064676a282",
              "status": "affected",
              "version": "0a7e54c1959c",
              "versionType": "git"
            },
            {
              "lessThan": "da4a82741606",
              "status": "affected",
              "version": "0a7e54c1959c",
              "versionType": "git"
            }
          ]
        },
        {
          "defaultStatus": "affected",
          "product": "Linux",
          "programFiles": [
            "fs/cachefiles/ondemand.c",
            "include/trace/events/cachefiles.h"
          ],
          "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
          "vendor": "Linux",
          "versions": [
            {
              "status": "affected",
              "version": "6.8"
            },
            {
              "lessThan": "6.8",
              "status": "unaffected",
              "version": "0",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "6.9.*",
              "status": "unaffected",
              "version": "6.9.6",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "*",
              "status": "unaffected",
              "version": "6.10",
              "versionType": "original_commit_for_fix"
            }
          ]
        }
      ],
      "descriptions": [
        {
          "lang": "en",
          "value": "In the Linux kernel, the following vulnerability has been resolved:\n\ncachefiles: fix slab-use-after-free in cachefiles_ondemand_daemon_read()\n\nWe got the following issue in a fuzz test of randomly issuing the restore\ncommand:\n\n==================================================================\nBUG: KASAN: slab-use-after-free in cachefiles_ondemand_daemon_read+0xb41/0xb60\nRead of size 8 at addr ffff888122e84088 by task ondemand-04-dae/963\n\nCPU: 13 PID: 963 Comm: ondemand-04-dae Not tainted 6.8.0-dirty #564\nCall Trace:\n kasan_report+0x93/0xc0\n cachefiles_ondemand_daemon_read+0xb41/0xb60\n vfs_read+0x169/0xb50\n ksys_read+0xf5/0x1e0\n\nAllocated by task 116:\n kmem_cache_alloc+0x140/0x3a0\n cachefiles_lookup_cookie+0x140/0xcd0\n fscache_cookie_state_machine+0x43c/0x1230\n [...]\n\nFreed by task 792:\n kmem_cache_free+0xfe/0x390\n cachefiles_put_object+0x241/0x480\n fscache_cookie_state_machine+0x5c8/0x1230\n [...]\n==================================================================\n\nFollowing is the process that triggers the issue:\n\n     mount  |   daemon_thread1    |    daemon_thread2\n------------------------------------------------------------\ncachefiles_withdraw_cookie\n cachefiles_ondemand_clean_object(object)\n  cachefiles_ondemand_send_req\n   REQ_A = kzalloc(sizeof(*req) + data_len)\n   wait_for_completion(\u0026REQ_A-\u003edone)\n\n            cachefiles_daemon_read\n             cachefiles_ondemand_daemon_read\n              REQ_A = cachefiles_ondemand_select_req\n              msg-\u003eobject_id = req-\u003eobject-\u003eondemand-\u003eondemand_id\n                                  ------ restore ------\n                                  cachefiles_ondemand_restore\n                                  xas_for_each(\u0026xas, req, ULONG_MAX)\n                                   xas_set_mark(\u0026xas, CACHEFILES_REQ_NEW)\n\n                                  cachefiles_daemon_read\n                                   cachefiles_ondemand_daemon_read\n                                    REQ_A = cachefiles_ondemand_select_req\n              copy_to_user(_buffer, msg, n)\n               xa_erase(\u0026cache-\u003ereqs, id)\n               complete(\u0026REQ_A-\u003edone)\n              ------ close(fd) ------\n              cachefiles_ondemand_fd_release\n               cachefiles_put_object\n cachefiles_put_object\n  kmem_cache_free(cachefiles_object_jar, object)\n                                    REQ_A-\u003eobject-\u003eondemand-\u003eondemand_id\n                                     // object UAF !!!\n\nWhen we see the request within xa_lock, req-\u003eobject must not have been\nfreed yet, so grab the reference count of object before xa_unlock to\navoid the above issue."
        }
      ],
      "providerMetadata": {
        "dateUpdated": "2024-11-05T09:32:42.248Z",
        "orgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
        "shortName": "Linux"
      },
      "references": [
        {
          "url": "https://git.kernel.org/stable/c/cb55625f8eb9d2de8be4da0c4580d48cbb32058e"
        },
        {
          "url": "https://git.kernel.org/stable/c/3958679c49152391209b32be3357193300a51abd"
        },
        {
          "url": "https://git.kernel.org/stable/c/93064676a2820420a2d37d7c8289f277fe20793d"
        },
        {
          "url": "https://git.kernel.org/stable/c/da4a827416066191aafeeccee50a8836a826ba10"
        }
      ],
      "title": "cachefiles: fix slab-use-after-free in cachefiles_ondemand_daemon_read()",
      "x_generator": {
        "engine": "bippy-9e1c9544281a"
      }
    }
  },
  "cveMetadata": {
    "assignerOrgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
    "assignerShortName": "Linux",
    "cveId": "CVE-2024-39510",
    "datePublished": "2024-07-12T12:20:40.901Z",
    "dateReserved": "2024-06-25T14:23:23.753Z",
    "dateUpdated": "2024-11-05T09:32:42.248Z",
    "state": "PUBLISHED"
  },
  "dataType": "CVE_RECORD",
  "dataVersion": "5.1",
  "meta": {
    "nvd": "{\"cve\":{\"id\":\"CVE-2024-39510\",\"sourceIdentifier\":\"416baaa9-dc9f-4396-8d5f-8c081fb06d67\",\"published\":\"2024-07-12T13:15:13.283\",\"lastModified\":\"2024-11-21T09:27:52.917\",\"vulnStatus\":\"Modified\",\"cveTags\":[],\"descriptions\":[{\"lang\":\"en\",\"value\":\"In the Linux kernel, the following vulnerability has been resolved:\\n\\ncachefiles: fix slab-use-after-free in cachefiles_ondemand_daemon_read()\\n\\nWe got the following issue in a fuzz test of randomly issuing the restore\\ncommand:\\n\\n==================================================================\\nBUG: KASAN: slab-use-after-free in cachefiles_ondemand_daemon_read+0xb41/0xb60\\nRead of size 8 at addr ffff888122e84088 by task ondemand-04-dae/963\\n\\nCPU: 13 PID: 963 Comm: ondemand-04-dae Not tainted 6.8.0-dirty #564\\nCall Trace:\\n kasan_report+0x93/0xc0\\n cachefiles_ondemand_daemon_read+0xb41/0xb60\\n vfs_read+0x169/0xb50\\n ksys_read+0xf5/0x1e0\\n\\nAllocated by task 116:\\n kmem_cache_alloc+0x140/0x3a0\\n cachefiles_lookup_cookie+0x140/0xcd0\\n fscache_cookie_state_machine+0x43c/0x1230\\n [...]\\n\\nFreed by task 792:\\n kmem_cache_free+0xfe/0x390\\n cachefiles_put_object+0x241/0x480\\n fscache_cookie_state_machine+0x5c8/0x1230\\n [...]\\n==================================================================\\n\\nFollowing is the process that triggers the issue:\\n\\n     mount  |   daemon_thread1    |    daemon_thread2\\n------------------------------------------------------------\\ncachefiles_withdraw_cookie\\n cachefiles_ondemand_clean_object(object)\\n  cachefiles_ondemand_send_req\\n   REQ_A = kzalloc(sizeof(*req) + data_len)\\n   wait_for_completion(\u0026REQ_A-\u003edone)\\n\\n            cachefiles_daemon_read\\n             cachefiles_ondemand_daemon_read\\n              REQ_A = cachefiles_ondemand_select_req\\n              msg-\u003eobject_id = req-\u003eobject-\u003eondemand-\u003eondemand_id\\n                                  ------ restore ------\\n                                  cachefiles_ondemand_restore\\n                                  xas_for_each(\u0026xas, req, ULONG_MAX)\\n                                   xas_set_mark(\u0026xas, CACHEFILES_REQ_NEW)\\n\\n                                  cachefiles_daemon_read\\n                                   cachefiles_ondemand_daemon_read\\n                                    REQ_A = cachefiles_ondemand_select_req\\n              copy_to_user(_buffer, msg, n)\\n               xa_erase(\u0026cache-\u003ereqs, id)\\n               complete(\u0026REQ_A-\u003edone)\\n              ------ close(fd) ------\\n              cachefiles_ondemand_fd_release\\n               cachefiles_put_object\\n cachefiles_put_object\\n  kmem_cache_free(cachefiles_object_jar, object)\\n                                    REQ_A-\u003eobject-\u003eondemand-\u003eondemand_id\\n                                     // object UAF !!!\\n\\nWhen we see the request within xa_lock, req-\u003eobject must not have been\\nfreed yet, so grab the reference count of object before xa_unlock to\\navoid the above issue.\"},{\"lang\":\"es\",\"value\":\"En el kernel de Linux, se resolvi\u00f3 la siguiente vulnerabilidad: cachefiles: fix slab-use-after-free in cachefiles_ondemand_daemon_read() Obtuvimos el siguiente problema en una prueba de ejecuci\u00f3n aleatoria del comando de restauraci\u00f3n: ======== ==================================================== ======== ERROR: KASAN: slab-use-after-free en cachefiles_ondemand_daemon_read+0xb41/0xb60 Lectura de tama\u00f1o 8 en la direcci\u00f3n ffff888122e84088 por tarea ondemand-04-dae/963 CPU: 13 PID: 963 Comm: ondemand -04-dae Not tainted 6.8.0-dirty #564 Seguimiento de llamadas: kasan_report+0x93/0xc0 cachefiles_ondemand_daemon_read+0xb41/0xb60 vfs_read+0x169/0xb50 ksys_read+0xf5/0x1e0 Asignado por tarea 116: kmem_cache_alloc+0x14 0/0x3a0 cachefiles_lookup_cookie+0x140/ 0xcd0 fscache_cookie_state_machine+0x43c/0x1230 [...] Liberado por la tarea 792: kmem_cache_free+0xfe/0x390 cachefiles_put_object+0x241/0x480 fscache_cookie_state_machine+0x5c8/0x1230 [...] =============== ==================================================== == El siguiente es el proceso que desencadena el problema: montar | daemon_thread1 | daemon_thread2 ------------------------------------------------- ----------- cachefiles_withdraw_cookie cachefiles_ondemand_clean_object(object) cachefiles_ondemand_send_req REQ_A = kzalloc(sizeof(*req) + data_len) wait_for_completion(\u0026amp;REQ_A-\u0026gt;done) cachefiles_daemon_read cachefiles_ondemand_daemon_read REQ_A = cachefiles_ondemand_select_req- \u0026gt;object_id = solicitud-\u0026gt;objeto -\u0026gt;ondemand-\u0026gt;ondemand_id ------ restaurar ------ cachefiles_ondemand_restore xas_for_each(\u0026amp;xas, req, ULONG_MAX) xas_set_mark(\u0026amp;xas, CACHEFILES_REQ_NEW) cachefiles_daemon_read cachefiles_ondemand_daemon_read REQ_A = cachefiles_ondemand_select_req er, mensaje, n) xa_erase(\u0026amp;cache -\u0026gt;reqs, id) complete(\u0026amp;REQ_A-\u0026gt;done) ------ close(fd) ------ cachefiles_ondemand_fd_release cachefiles_put_object cachefiles_put_object kmem_cache_free(cachefiles_object_jar, object) REQ_A-\u0026gt;object-\u0026gt;ondemand-\u0026gt;ondemand_id // objeto UAF !!! Cuando vemos la solicitud dentro de xa_lock, req-\u0026gt;object no debe haberse liberado a\u00fan, as\u00ed que tome el recuento de referencia del objeto antes de xa_unlock para evitar el problema anterior.\"}],\"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:H/I:H/A:H\",\"baseScore\":7.8,\"baseSeverity\":\"HIGH\",\"attackVector\":\"LOCAL\",\"attackComplexity\":\"LOW\",\"privilegesRequired\":\"LOW\",\"userInteraction\":\"NONE\",\"scope\":\"UNCHANGED\",\"confidentialityImpact\":\"HIGH\",\"integrityImpact\":\"HIGH\",\"availabilityImpact\":\"HIGH\"},\"exploitabilityScore\":1.8,\"impactScore\":5.9}]},\"weaknesses\":[{\"source\":\"nvd@nist.gov\",\"type\":\"Primary\",\"description\":[{\"lang\":\"en\",\"value\":\"CWE-416\"}]}],\"configurations\":[{\"nodes\":[{\"operator\":\"OR\",\"negate\":false,\"cpeMatch\":[{\"vulnerable\":true,\"criteria\":\"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*\",\"versionStartIncluding\":\"6.8\",\"versionEndExcluding\":\"6.9.6\",\"matchCriteriaId\":\"5A16B675-D12F-49F9-AB96-23E6074FF336\"},{\"vulnerable\":true,\"criteria\":\"cpe:2.3:o:linux:linux_kernel:6.10:rc1:*:*:*:*:*:*\",\"matchCriteriaId\":\"2EBB4392-5FA6-4DA9-9772-8F9C750109FA\"},{\"vulnerable\":true,\"criteria\":\"cpe:2.3:o:linux:linux_kernel:6.10:rc2:*:*:*:*:*:*\",\"matchCriteriaId\":\"331C2F14-12C7-45D5-893D-8C52EE38EA10\"},{\"vulnerable\":true,\"criteria\":\"cpe:2.3:o:linux:linux_kernel:6.10:rc3:*:*:*:*:*:*\",\"matchCriteriaId\":\"3173713D-909A-4DD3-9DD4-1E171EB057EE\"}]}]}],\"references\":[{\"url\":\"https://git.kernel.org/stable/c/3958679c49152391209b32be3357193300a51abd\",\"source\":\"416baaa9-dc9f-4396-8d5f-8c081fb06d67\",\"tags\":[\"Patch\"]},{\"url\":\"https://git.kernel.org/stable/c/93064676a2820420a2d37d7c8289f277fe20793d\",\"source\":\"416baaa9-dc9f-4396-8d5f-8c081fb06d67\",\"tags\":[\"Patch\"]},{\"url\":\"https://git.kernel.org/stable/c/cb55625f8eb9d2de8be4da0c4580d48cbb32058e\",\"source\":\"416baaa9-dc9f-4396-8d5f-8c081fb06d67\",\"tags\":[\"Patch\"]},{\"url\":\"https://git.kernel.org/stable/c/da4a827416066191aafeeccee50a8836a826ba10\",\"source\":\"416baaa9-dc9f-4396-8d5f-8c081fb06d67\",\"tags\":[\"Patch\"]},{\"url\":\"https://git.kernel.org/stable/c/3958679c49152391209b32be3357193300a51abd\",\"source\":\"af854a3a-2127-422b-91ae-364da2661108\",\"tags\":[\"Patch\"]},{\"url\":\"https://git.kernel.org/stable/c/93064676a2820420a2d37d7c8289f277fe20793d\",\"source\":\"af854a3a-2127-422b-91ae-364da2661108\",\"tags\":[\"Patch\"]},{\"url\":\"https://git.kernel.org/stable/c/cb55625f8eb9d2de8be4da0c4580d48cbb32058e\",\"source\":\"af854a3a-2127-422b-91ae-364da2661108\",\"tags\":[\"Patch\"]},{\"url\":\"https://git.kernel.org/stable/c/da4a827416066191aafeeccee50a8836a826ba10\",\"source\":\"af854a3a-2127-422b-91ae-364da2661108\",\"tags\":[\"Patch\"]}]}}"
  }
}


Log in or create an account to share your comment.




Tags
Taxonomy of the tags.




Sightings

Author Source Type Date

Nomenclature

  • Seen: The vulnerability was mentioned, discussed, or seen somewhere by the user.
  • Confirmed: The vulnerability is confirmed from an analyst perspective.
  • Exploited: This vulnerability was exploited and seen by the user reporting the sighting.
  • Patched: This vulnerability was successfully patched by the user reporting the sighting.
  • Not exploited: This vulnerability was not exploited or seen by the user reporting the sighting.
  • Not confirmed: The user expresses doubt about the veracity of the vulnerability.
  • Not patched: This vulnerability was not successfully patched by the user reporting the sighting.