CVE-2021-47056 (GCVE-0-2021-47056)

Vulnerability from cvelistv5 – Published: 2024-02-29 22:37 – Updated: 2026-05-11 13:47
VLAI
Title
crypto: qat - ADF_STATUS_PF_RUNNING should be set after adf_dev_init
Summary
In the Linux kernel, the following vulnerability has been resolved: crypto: qat - ADF_STATUS_PF_RUNNING should be set after adf_dev_init ADF_STATUS_PF_RUNNING is (only) used and checked by adf_vf2pf_shutdown() before calling adf_iov_putmsg()->mutex_lock(vf2pf_lock), however the vf2pf_lock is initialized in adf_dev_init(), which can fail and when it fail, the vf2pf_lock is either not initialized or destroyed, a subsequent use of vf2pf_lock will cause issue. To fix this issue, only set this flag if adf_dev_init() returns 0. [ 7.178404] BUG: KASAN: user-memory-access in __mutex_lock.isra.0+0x1ac/0x7c0 [ 7.180345] Call Trace: [ 7.182576] mutex_lock+0xc9/0xd0 [ 7.183257] adf_iov_putmsg+0x118/0x1a0 [intel_qat] [ 7.183541] adf_vf2pf_shutdown+0x4d/0x7b [intel_qat] [ 7.183834] adf_dev_shutdown+0x172/0x2b0 [intel_qat] [ 7.184127] adf_probe+0x5e9/0x600 [qat_dh895xccvf]
Severity
No CVSS data available.
SSVC
Exploitation: none Automatable: no Technical Impact: partial
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2024-09-10 15:57 UTC
Assigner
Linux CNA under the mitre root
CNA scorecard D 53/100 over 6843 records in the last 180 days details
References
Impacted products
Vendor Product Version CPE status
Linux Linux Affected: 25c6ffb249f612c56a48ce48a3887adf57b8f4bd , < f4c4e07140687f42bfa40e091bb4a55d7960ce4d (git)
Affected: 25c6ffb249f612c56a48ce48a3887adf57b8f4bd , < 446045cf682af12d9294765f6c46084b374b5654 (git)
Affected: 25c6ffb249f612c56a48ce48a3887adf57b8f4bd , < 09d16cee6285d37cc76311c29add6d97a7e4acda (git)
Affected: 25c6ffb249f612c56a48ce48a3887adf57b8f4bd , < 05ec8192ee4bfdf2a8894a68350dac9f1a155fa6 (git)
Affected: 25c6ffb249f612c56a48ce48a3887adf57b8f4bd , < 1f50392650ae794a1aea41c213c6a3e1c824413c (git)
Affected: 25c6ffb249f612c56a48ce48a3887adf57b8f4bd , < 20fd40fc6f2c2b41dc6f637f88d494b14e9c21f1 (git)
Affected: 25c6ffb249f612c56a48ce48a3887adf57b8f4bd , < 1ea500ce6f7c9106e4a561d28e69215f3d451818 (git)
Affected: 25c6ffb249f612c56a48ce48a3887adf57b8f4bd , < 8609f5cfdc872fc3a462efa6a3eca5cb1e2f6446 (git)
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Linux Linux Affected: 4.7
Unaffected: 0 , < 4.7 (semver)
Unaffected: 4.9.269 , ≤ 4.9.* (semver)
Unaffected: 4.14.233 , ≤ 4.14.* (semver)
Unaffected: 4.19.191 , ≤ 4.19.* (semver)
Unaffected: 5.4.119 , ≤ 5.4.* (semver)
Unaffected: 5.10.37 , ≤ 5.10.* (semver)
Unaffected: 5.11.21 , ≤ 5.11.* (semver)
Unaffected: 5.12.4 , ≤ 5.12.* (semver)
Unaffected: 5.13 , ≤ * (original_commit_for_fix)
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        "assignerOrgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
        "assignerShortName": "Linux",
        "cveId": "CVE-2021-47056",
        "datePublished": "2024-02-29T22:37:31.086Z",
        "dateReserved": "2024-02-29T22:33:44.294Z",
        "dateUpdated": "2025-05-04T07:03:18.175Z",
        "state": "PUBLISHED"
      },
      "dataType": "CVE_RECORD",
      "dataVersion": "5.1"
    }
  }
}



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Drag nodes to arrange them. Double-click a related vulnerability to open it, or a source to visit its link. The Physics button on the left tunes the layout and the simulation; the legend at the bottom left hides or shows nodes by kind and by sighting type.

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.
Vulnerability timeline

Sightings and recorded dates, grouped by day · UTC

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    Related by attack behaviour

    Vulnerabilities whose description is nearest to this one in the vector space of the CIRCL/vulnerability-attack-technique-biencoder model. This is a similarity search over the bi-encoder space (plain cosine), not a classification, and it has no measured accuracy.