CVE-2021-47138 (GCVE-0-2021-47138)

Vulnerability from cvelistv5 – Published: 2024-03-25 09:07 – Updated: 2026-05-11 13:48
VLAI
Title
cxgb4: avoid accessing registers when clearing filters
Summary
In the Linux kernel, the following vulnerability has been resolved: cxgb4: avoid accessing registers when clearing filters Hardware register having the server TID base can contain invalid values when adapter is in bad state (for example, due to AER fatal error). Reading these invalid values in the register can lead to out-of-bound memory access. So, fix by using the saved server TID base when clearing filters.
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: b1a79360ee862f8ada4798ad2346fa45bb41b527 , < 0bf49b3c8d8b3a43ce09f1b2db70e5484d31fcdf (git)
Affected: b1a79360ee862f8ada4798ad2346fa45bb41b527 , < 02f03883fdb10ad7e66717c70ea163a8d27ae6e7 (git)
Affected: b1a79360ee862f8ada4798ad2346fa45bb41b527 , < 285207a558ab456aa7d8aa877ecc7e91fcc51710 (git)
Affected: b1a79360ee862f8ada4798ad2346fa45bb41b527 , < 88c380df84fbd03f9b137c2b9d0a44b9f2f553b0 (git)
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Linux Linux Affected: 5.2
Unaffected: 0 , < 5.2 (semver)
Unaffected: 5.4.124 , ≤ 5.4.* (semver)
Unaffected: 5.10.42 , ≤ 5.10.* (semver)
Unaffected: 5.12.9 , ≤ 5.12.* (semver)
Unaffected: 5.13 , ≤ * (original_commit_for_fix)
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      "cveMetadata": "{\"cveId\": \"CVE-2021-47138\", \"state\": \"PUBLISHED\", \"dateUpdated\": \"2025-05-04T07:04:52.812Z\", \"dateReserved\": \"2024-03-04T18:12:48.841Z\", \"assignerOrgId\": \"416baaa9-dc9f-4396-8d5f-8c081fb06d67\", \"datePublished\": \"2024-03-25T09:07:37.414Z\", \"assignerShortName\": \"Linux\"}",
      "dataType": "CVE_RECORD",
      "dataVersion": "5.1"
    }
  }
}



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Tags
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.