cve-2021-47535
Vulnerability from cvelistv5
Published
2024-05-24 15:09
Modified
2024-11-04 12:07
Severity ?
Summary
drm/msm/a6xx: Allocate enough space for GMU registers
References
416baaa9-dc9f-4396-8d5f-8c081fb06d67https://git.kernel.org/stable/c/83e54fcf0b14ca2d869dd37abe1bb6542805f538
416baaa9-dc9f-4396-8d5f-8c081fb06d67https://git.kernel.org/stable/c/b4d25abf9720b69a03465b09d0d62d1998ed6708
416baaa9-dc9f-4396-8d5f-8c081fb06d67https://git.kernel.org/stable/c/d646856a600e8635ba498f20b194219b158626e8
Impacted products
LinuxLinux
LinuxLinux
Show details on NVD website

To clipboard 

{
  "containers": {
    "adp": [
      {
        "metrics": [
          {
            "other": {
              "content": {
                "id": "CVE-2021-47535",
                "options": [
                  {
                    "Exploitation": "none"
                  },
                  {
                    "Automatable": "no"
                  },
                  {
                    "Technical Impact": "partial"
                  }
                ],
                "role": "CISA Coordinator",
                "timestamp": "2024-06-17T17:34:34.685290Z",
                "version": "2.0.3"
              },
              "type": "ssvc"
            }
          }
        ],
        "providerMetadata": {
          "dateUpdated": "2024-06-17T17:34:55.686Z",
          "orgId": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
          "shortName": "CISA-ADP"
        },
        "title": "CISA ADP Vulnrichment"
      },
      {
        "providerMetadata": {
          "dateUpdated": "2024-08-04T05:39:59.827Z",
          "orgId": "af854a3a-2127-422b-91ae-364da2661108",
          "shortName": "CVE"
        },
        "references": [
          {
            "tags": [
              "x_transferred"
            ],
            "url": "https://git.kernel.org/stable/c/d646856a600e8635ba498f20b194219b158626e8"
          },
          {
            "tags": [
              "x_transferred"
            ],
            "url": "https://git.kernel.org/stable/c/83e54fcf0b14ca2d869dd37abe1bb6542805f538"
          },
          {
            "tags": [
              "x_transferred"
            ],
            "url": "https://git.kernel.org/stable/c/b4d25abf9720b69a03465b09d0d62d1998ed6708"
          }
        ],
        "title": "CVE Program Container"
      }
    ],
    "cna": {
      "affected": [
        {
          "defaultStatus": "unaffected",
          "product": "Linux",
          "programFiles": [
            "drivers/gpu/drm/msm/adreno/a6xx_gpu_state.c"
          ],
          "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
          "vendor": "Linux",
          "versions": [
            {
              "lessThan": "d646856a600e",
              "status": "affected",
              "version": "142639a52a01",
              "versionType": "git"
            },
            {
              "lessThan": "83e54fcf0b14",
              "status": "affected",
              "version": "142639a52a01",
              "versionType": "git"
            },
            {
              "lessThan": "b4d25abf9720",
              "status": "affected",
              "version": "142639a52a01",
              "versionType": "git"
            }
          ]
        },
        {
          "defaultStatus": "affected",
          "product": "Linux",
          "programFiles": [
            "drivers/gpu/drm/msm/adreno/a6xx_gpu_state.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": "semver"
            },
            {
              "lessThanOrEqual": "5.10.*",
              "status": "unaffected",
              "version": "5.10.84",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "5.15.*",
              "status": "unaffected",
              "version": "5.15.7",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "*",
              "status": "unaffected",
              "version": "5.16",
              "versionType": "original_commit_for_fix"
            }
          ]
        }
      ],
      "descriptions": [
        {
          "lang": "en",
          "value": "In the Linux kernel, the following vulnerability has been resolved:\n\ndrm/msm/a6xx: Allocate enough space for GMU registers\n\nIn commit 142639a52a01 (\"drm/msm/a6xx: fix crashstate capture for\nA650\") we changed a6xx_get_gmu_registers() to read 3 sets of\nregisters. Unfortunately, we didn\u0027t change the memory allocation for\nthe array. That leads to a KASAN warning (this was on the chromeos-5.4\nkernel, which has the problematic commit backported to it):\n\n  BUG: KASAN: slab-out-of-bounds in _a6xx_get_gmu_registers+0x144/0x430\n  Write of size 8 at addr ffffff80c89432b0 by task A618-worker/209\n  CPU: 5 PID: 209 Comm: A618-worker Tainted: G        W         5.4.156-lockdep #22\n  Hardware name: Google Lazor Limozeen without Touchscreen (rev5 - rev8) (DT)\n  Call trace:\n   dump_backtrace+0x0/0x248\n   show_stack+0x20/0x2c\n   dump_stack+0x128/0x1ec\n   print_address_description+0x88/0x4a0\n   __kasan_report+0xfc/0x120\n   kasan_report+0x10/0x18\n   __asan_report_store8_noabort+0x1c/0x24\n   _a6xx_get_gmu_registers+0x144/0x430\n   a6xx_gpu_state_get+0x330/0x25d4\n   msm_gpu_crashstate_capture+0xa0/0x84c\n   recover_worker+0x328/0x838\n   kthread_worker_fn+0x32c/0x574\n   kthread+0x2dc/0x39c\n   ret_from_fork+0x10/0x18\n\n  Allocated by task 209:\n   __kasan_kmalloc+0xfc/0x1c4\n   kasan_kmalloc+0xc/0x14\n   kmem_cache_alloc_trace+0x1f0/0x2a0\n   a6xx_gpu_state_get+0x164/0x25d4\n   msm_gpu_crashstate_capture+0xa0/0x84c\n   recover_worker+0x328/0x838\n   kthread_worker_fn+0x32c/0x574\n   kthread+0x2dc/0x39c\n   ret_from_fork+0x10/0x18"
        }
      ],
      "providerMetadata": {
        "dateUpdated": "2024-11-04T12:07:48.679Z",
        "orgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
        "shortName": "Linux"
      },
      "references": [
        {
          "url": "https://git.kernel.org/stable/c/d646856a600e8635ba498f20b194219b158626e8"
        },
        {
          "url": "https://git.kernel.org/stable/c/83e54fcf0b14ca2d869dd37abe1bb6542805f538"
        },
        {
          "url": "https://git.kernel.org/stable/c/b4d25abf9720b69a03465b09d0d62d1998ed6708"
        }
      ],
      "title": "drm/msm/a6xx: Allocate enough space for GMU registers",
      "x_generator": {
        "engine": "bippy-9e1c9544281a"
      }
    }
  },
  "cveMetadata": {
    "assignerOrgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
    "assignerShortName": "Linux",
    "cveId": "CVE-2021-47535",
    "datePublished": "2024-05-24T15:09:43.994Z",
    "dateReserved": "2024-05-24T15:02:54.826Z",
    "dateUpdated": "2024-11-04T12:07:48.679Z",
    "state": "PUBLISHED"
  },
  "dataType": "CVE_RECORD",
  "dataVersion": "5.1",
  "meta": {
    "nvd": "{\"cve\":{\"id\":\"CVE-2021-47535\",\"sourceIdentifier\":\"416baaa9-dc9f-4396-8d5f-8c081fb06d67\",\"published\":\"2024-05-24T15:15:17.120\",\"lastModified\":\"2024-05-24T18:09:20.027\",\"vulnStatus\":\"Awaiting Analysis\",\"descriptions\":[{\"lang\":\"en\",\"value\":\"In the Linux kernel, the following vulnerability has been resolved:\\n\\ndrm/msm/a6xx: Allocate enough space for GMU registers\\n\\nIn commit 142639a52a01 (\\\"drm/msm/a6xx: fix crashstate capture for\\nA650\\\") we changed a6xx_get_gmu_registers() to read 3 sets of\\nregisters. Unfortunately, we didn\u0027t change the memory allocation for\\nthe array. That leads to a KASAN warning (this was on the chromeos-5.4\\nkernel, which has the problematic commit backported to it):\\n\\n  BUG: KASAN: slab-out-of-bounds in _a6xx_get_gmu_registers+0x144/0x430\\n  Write of size 8 at addr ffffff80c89432b0 by task A618-worker/209\\n  CPU: 5 PID: 209 Comm: A618-worker Tainted: G        W         5.4.156-lockdep #22\\n  Hardware name: Google Lazor Limozeen without Touchscreen (rev5 - rev8) (DT)\\n  Call trace:\\n   dump_backtrace+0x0/0x248\\n   show_stack+0x20/0x2c\\n   dump_stack+0x128/0x1ec\\n   print_address_description+0x88/0x4a0\\n   __kasan_report+0xfc/0x120\\n   kasan_report+0x10/0x18\\n   __asan_report_store8_noabort+0x1c/0x24\\n   _a6xx_get_gmu_registers+0x144/0x430\\n   a6xx_gpu_state_get+0x330/0x25d4\\n   msm_gpu_crashstate_capture+0xa0/0x84c\\n   recover_worker+0x328/0x838\\n   kthread_worker_fn+0x32c/0x574\\n   kthread+0x2dc/0x39c\\n   ret_from_fork+0x10/0x18\\n\\n  Allocated by task 209:\\n   __kasan_kmalloc+0xfc/0x1c4\\n   kasan_kmalloc+0xc/0x14\\n   kmem_cache_alloc_trace+0x1f0/0x2a0\\n   a6xx_gpu_state_get+0x164/0x25d4\\n   msm_gpu_crashstate_capture+0xa0/0x84c\\n   recover_worker+0x328/0x838\\n   kthread_worker_fn+0x32c/0x574\\n   kthread+0x2dc/0x39c\\n   ret_from_fork+0x10/0x18\"},{\"lang\":\"es\",\"value\":\"En el kernel de Linux, se resolvi\u00f3 la siguiente vulnerabilidad: drm/msm/a6xx: asigne suficiente espacio para los registros GMU. En el commit 142639a52a01 (\\\"drm/msm/a6xx: corrija la captura del estado de falla para A650\\\") cambiamos a6xx_get_gmu_registers() para que diga 3 conjuntos de registros. Desafortunadamente, no cambiamos la asignaci\u00f3n de memoria para la matriz. Eso conduce a una advertencia de KASAN (esto estaba en el kernel chromeos-5.4, que tiene el commit problem\u00e1tica respaldada): ERROR: KASAN: slab-out-of-bounds in _a6xx_get_gmu_registers+0x144/0x430 Escritura de tama\u00f1o 8 en addr ffffff80c89432b0 por tarea A618-worker/209 CPU: 5 PID: 209 Comm: A618-worker Contaminado: GW 5.4.156-lockdep #22 Nombre del hardware: Google Lazor Limozeen sin pantalla t\u00e1ctil (rev5 - rev8) (DT) Rastreo de llamadas: dump_backtrace+0x0 /0x248 show_stack+0x20/0x2c dump_stack+0x128/0x1ec print_address_description+0x88/0x4a0 __kasan_report+0xfc/0x120 kasan_report+0x10/0x18 __asan_report_store8_noabort+0x1c/0x24 _a6xx_get_gmu_registers +0x144/0x430 a6xx_gpu_state_get+0x330/0x25d4 msm_gpu_crashstate_capture+0xa0/0x84c recovery_worker+0x328 /0x838 kthread_worker_fn+0x32c/0x574 kthread+0x2dc/0x39c ret_from_fork+0x10/0x18 Asignado por la tarea 209: __kasan_kmalloc+0xfc/0x1c4 kasan_kmalloc+0xc/0x14 kmem_cache_alloc_trace+0x1f0/0x 2a0 a6xx_gpu_state_get+0x164/0x25d4 msm_gpu_crashstate_capture+0xa0/0x84c recovery_worker+0x328 /0x838 kthread_worker_fn+0x32c/0x574 kthread+0x2dc/0x39c ret_from_fork+0x10/0x18\"}],\"metrics\":{},\"references\":[{\"url\":\"https://git.kernel.org/stable/c/83e54fcf0b14ca2d869dd37abe1bb6542805f538\",\"source\":\"416baaa9-dc9f-4396-8d5f-8c081fb06d67\"},{\"url\":\"https://git.kernel.org/stable/c/b4d25abf9720b69a03465b09d0d62d1998ed6708\",\"source\":\"416baaa9-dc9f-4396-8d5f-8c081fb06d67\"},{\"url\":\"https://git.kernel.org/stable/c/d646856a600e8635ba498f20b194219b158626e8\",\"source\":\"416baaa9-dc9f-4396-8d5f-8c081fb06d67\"}]}}"
  }
}


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.