CVE-2023-52491 (GCVE-0-2023-52491)

Vulnerability from cvelistv5 – Published: 2024-02-29 15:52 – Updated: 2026-05-11 19:28
VLAI
Title
media: mtk-jpeg: Fix use after free bug due to error path handling in mtk_jpeg_dec_device_run
Summary
In the Linux kernel, the following vulnerability has been resolved: media: mtk-jpeg: Fix use after free bug due to error path handling in mtk_jpeg_dec_device_run In mtk_jpeg_probe, &jpeg->job_timeout_work is bound with mtk_jpeg_job_timeout_work. In mtk_jpeg_dec_device_run, if error happens in mtk_jpeg_set_dec_dst, it will finally start the worker while mark the job as finished by invoking v4l2_m2m_job_finish. There are two methods to trigger the bug. If we remove the module, it which will call mtk_jpeg_remove to make cleanup. The possible sequence is as follows, which will cause a use-after-free bug. CPU0 CPU1 mtk_jpeg_dec_... | start worker | |mtk_jpeg_job_timeout_work mtk_jpeg_remove | v4l2_m2m_release | kfree(m2m_dev); | | | v4l2_m2m_get_curr_priv | m2m_dev->curr_ctx //use If we close the file descriptor, which will call mtk_jpeg_release, it will have a similar sequence. Fix this bug by starting timeout worker only if started jpegdec worker successfully. Then v4l2_m2m_job_finish will only be called in either mtk_jpeg_job_timeout_work or mtk_jpeg_dec_device_run.
Severity
No CVSS data available.
SSVC
Exploitation: none Automatable: no Technical Impact: partial
CISA Coordinator (v2.0.3)
Assigner
References
Impacted products
Vendor Product Version
Linux Linux Affected: b2f0d2724ba477d326e9d654d4db1c93e98f8b93 , < 43872f44eee6c6781fea1348b38885d8e78face9 (git)
Affected: b2f0d2724ba477d326e9d654d4db1c93e98f8b93 , < 1b1036c60a37a30caf6759a90fe5ecd06ec35590 (git)
Affected: b2f0d2724ba477d326e9d654d4db1c93e98f8b93 , < 9fec4db7fff54d9b0306a332bab31eac47eeb5f6 (git)
Affected: b2f0d2724ba477d326e9d654d4db1c93e98f8b93 , < 8254d54d00eb6cdb8367399c7f912eb8d354ecd7 (git)
Affected: b2f0d2724ba477d326e9d654d4db1c93e98f8b93 , < 6e2f37022f0fc0893da4d85a0500c9d547fffd4c (git)
Affected: b2f0d2724ba477d326e9d654d4db1c93e98f8b93 , < 206c857dd17d4d026de85866f1b5f0969f2a109e (git)
Create a notification for this product.
Linux Linux Affected: 4.12
Unaffected: 0 , < 4.12 (semver)
Unaffected: 5.10.210 , ≤ 5.10.* (semver)
Unaffected: 5.15.149 , ≤ 5.15.* (semver)
Unaffected: 6.1.76 , ≤ 6.1.* (semver)
Unaffected: 6.6.15 , ≤ 6.6.* (semver)
Unaffected: 6.7.3 , ≤ 6.7.* (semver)
Unaffected: 6.8 , ≤ * (original_commit_for_fix)
Create a notification for this product.
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If we remove the\\nmodule, it which will call mtk_jpeg_remove to make cleanup.\\nThe possible sequence is as follows, which will cause a\\nuse-after-free bug.\\n\\nCPU0                  CPU1\\nmtk_jpeg_dec_...    |\\n  start worker\\t    |\\n                    |mtk_jpeg_job_timeout_work\\nmtk_jpeg_remove     |\\n  v4l2_m2m_release  |\\n    kfree(m2m_dev); |\\n                    |\\n                    | v4l2_m2m_get_curr_priv\\n                    |   m2m_dev-\u003ecurr_ctx //use\\n\\nIf we close the file descriptor, which will call mtk_jpeg_release,\\nit will have a similar sequence.\\n\\nFix this bug by starting timeout worker only if started jpegdec worker\\nsuccessfully. Then v4l2_m2m_job_finish will only be called in\\neither mtk_jpeg_job_timeout_work or mtk_jpeg_dec_device_run.\"},{\"lang\":\"es\",\"value\":\"En el kernel de Linux, se resolvi\u00f3 la siguiente vulnerabilidad: medio: mtk-jpeg: Se corrigi\u00f3 el error de use-after-free debido al manejo de la ruta de error en mtk_jpeg_dec_device_run En mtk_jpeg_probe, \u0026amp;jpeg-\u0026gt;job_timeout_work est\u00e1 vinculado con mtk_jpeg_job_timeout_work. En mtk_jpeg_dec_device_run, si ocurre un error en mtk_jpeg_set_dec_dst, finalmente iniciar\u00e1 el trabajador mientras marca el trabajo como finalizado invocando v4l2_m2m_job_finish. Hay dos m\u00e9todos para activar el error. Si eliminamos el m\u00f3dulo, llamar\u00e1 a mtk_jpeg_remove para realizar la limpieza. La secuencia posible es la siguiente, lo que provocar\u00e1 un error de use-after-free. CPU0 CPU1 mtk_jpeg_dec_... | empezar trabajador | |mtk_jpeg_job_timeout_work mtk_jpeg_remove | v4l2_m2m_release | kfree(m2m_dev); | | | v4l2_m2m_get_curr_priv | m2m_dev-\u0026gt;curr_ctx //use Si cerramos el descriptor de archivo, que llamar\u00e1 a mtk_jpeg_release, tendr\u00e1 una secuencia similar. Corrija este error iniciando el trabajador de tiempo de espera solo si inici\u00f3 el trabajador jpegdec exitosamente. 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    "redhat_vex": {
      "aggregate_severity": "Low",
      "current_release_date": "2025-11-21T14:15:35+00:00",
      "cve": "CVE-2023-52491",
      "id": "CVE-2023-52491",
      "initial_release_date": "2023-01-01T00:00:00+00:00",
      "product_status:known_not_affected": "198",
      "source": "Red Hat CSAF VEX",
      "status": "final",
      "title": "kernel: media: mtk-jpeg: Fix use after free bug due to error path handling in mtk_jpeg_dec_device_run",
      "url": "https://security.access.redhat.com/data/csaf/v2/vex/2023/cve-2023-52491.json",
      "version": "3"
    },
    "suse_vex": {
      "aggregate_severity": "moderate",
      "current_release_date": "2026-07-17T13:43:31Z",
      "cve": "CVE-2023-52491",
      "id": "CVE-2023-52491",
      "initial_release_date": "2024-03-13T04:24:44Z",
      "product_status:known_affected": "138",
      "product_status:known_not_affected": "283",
      "product_status:recommended": "206",
      "source": "SUSE CSAF VEX",
      "status": "interim",
      "title": "SUSE CVE CVE-2023-52491",
      "url": "https://ftp.suse.com/pub/projects/security/csaf-vex/cve-2023-52491.json",
      "version": "37"
    },
    "vulnrichment": {
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      "cveMetadata": "{\"cveId\": \"CVE-2023-52491\", \"state\": \"PUBLISHED\", \"dateUpdated\": \"2025-05-04T07:37:54.249Z\", \"dateReserved\": \"2024-02-20T12:30:33.303Z\", \"assignerOrgId\": \"416baaa9-dc9f-4396-8d5f-8c081fb06d67\", \"datePublished\": \"2024-02-29T15:52:09.891Z\", \"assignerShortName\": \"Linux\"}",
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  }
}



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Forecast uses a logistic model when the trend is rising, or an exponential decay model when the trend is falling. Fitted via linearized least squares.

Sightings

Author Source Type Date Other

Nomenclature

  • Seen: The vulnerability was mentioned, discussed, or observed by the user.
  • Confirmed: The vulnerability has been validated from an analyst's perspective.
  • Published Proof of Concept: A public proof of concept is available for this vulnerability.
  • Exploited: The vulnerability was observed as exploited by the user who reported the sighting.
  • Patched: The vulnerability was observed as successfully patched by the user who reported the sighting.
  • Not exploited: The vulnerability was not observed as exploited by the user who reported the sighting.
  • Not confirmed: The user expressed doubt about the validity of the vulnerability.
  • Not patched: The vulnerability was not observed as successfully patched by the user who reported the sighting.


Detection rules are retrieved from Rulezet.