CVE-2021-47404 (GCVE-0-2021-47404)

Vulnerability from cvelistv5 – Published: 2024-05-21 15:03 – Updated: 2026-05-11 13:54
VLAI?
Title
HID: betop: fix slab-out-of-bounds Write in betop_probe
Summary
In the Linux kernel, the following vulnerability has been resolved: HID: betop: fix slab-out-of-bounds Write in betop_probe Syzbot reported slab-out-of-bounds Write bug in hid-betopff driver. The problem is the driver assumes the device must have an input report but some malicious devices violate this assumption. So this patch checks hid_device's input is non empty before it's been used.
Severity ?
No CVSS data available.
Assigner
References
Impacted products
Vendor Product Version
Linux Linux Affected: 52cd7785f3cdd2724f4efb5b21dbc75d6f9ccef4 , < a4faa7153b87fbcfe4be15f4278676f79ca6e019 (git)
Affected: 52cd7785f3cdd2724f4efb5b21dbc75d6f9ccef4 , < 6fc4476dda58f6c00097c7ddec3b772513f57525 (git)
Affected: 52cd7785f3cdd2724f4efb5b21dbc75d6f9ccef4 , < 1c83c38dec83d57bc18d0c01d82c413d3b34ccb9 (git)
Affected: 52cd7785f3cdd2724f4efb5b21dbc75d6f9ccef4 , < bb8b72374db69afa25a5b65cf1c092860c6fe914 (git)
Affected: 52cd7785f3cdd2724f4efb5b21dbc75d6f9ccef4 , < fe9bb925e7096509711660d39c0493a1546e9550 (git)
Affected: 52cd7785f3cdd2724f4efb5b21dbc75d6f9ccef4 , < dedfc35a2de2bae9fa3da8210a05bfd515f83fee (git)
Affected: 52cd7785f3cdd2724f4efb5b21dbc75d6f9ccef4 , < 708107b80aa616976d1c5fa60ac0c1390749db5e (git)
Affected: 52cd7785f3cdd2724f4efb5b21dbc75d6f9ccef4 , < 1e4ce418b1cb1a810256b5fb3fd33d22d1325993 (git)
Create a notification for this product.
Linux Linux Affected: 4.0
Unaffected: 0 , < 4.0 (semver)
Unaffected: 4.4.286 , ≤ 4.4.* (semver)
Unaffected: 4.9.285 , ≤ 4.9.* (semver)
Unaffected: 4.14.249 , ≤ 4.14.* (semver)
Unaffected: 4.19.209 , ≤ 4.19.* (semver)
Unaffected: 5.4.151 , ≤ 5.4.* (semver)
Unaffected: 5.10.71 , ≤ 5.10.* (semver)
Unaffected: 5.14.10 , ≤ 5.14.* (semver)
Unaffected: 5.15 , ≤ * (original_commit_for_fix)
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    "nvd": "{\"cve\":{\"id\":\"CVE-2021-47404\",\"sourceIdentifier\":\"416baaa9-dc9f-4396-8d5f-8c081fb06d67\",\"published\":\"2024-05-21T15:15:25.920\",\"lastModified\":\"2024-12-24T16:05:42.447\",\"vulnStatus\":\"Analyzed\",\"cveTags\":[],\"descriptions\":[{\"lang\":\"en\",\"value\":\"In the Linux kernel, the following vulnerability has been resolved:\\n\\nHID: betop: fix slab-out-of-bounds Write in betop_probe\\n\\nSyzbot reported slab-out-of-bounds Write bug in hid-betopff driver.\\nThe problem is the driver assumes the device must have an input report but\\nsome malicious devices violate this assumption.\\n\\nSo this patch checks hid_device\u0027s input is non empty before it\u0027s been used.\"},{\"lang\":\"es\",\"value\":\" En el kernel de Linux, se resolvi\u00f3 la siguiente vulnerabilidad: HID: betop: corrige escritura slab-out-of-bounds en betop_probe. Syzbot inform\u00f3 un error de escritura slab-out-of-bounds en el controlador hid-betopff. El problema es que el controlador supone que el dispositivo debe tener un informe de entrada, pero algunos dispositivos maliciosos violan esta suposici\u00f3n. Entonces, este parche verifica que la entrada de hid_device no est\u00e9 vac\u00eda antes de 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    "vulnrichment": {
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      "dataType": "CVE_RECORD",
      "dataVersion": "5.2"
    }
  }
}


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Taxonomy of the tags.




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.