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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
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)
guessed Create a notification for this product.
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            "title": "CVE Program Container"
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            "metrics": [
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                "other": {
                  "content": {
                    "id": "CVE-2021-47056",
                    "options": [
                      {
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                      },
                      {
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              "value": "In the Linux kernel, the following vulnerability has been resolved:\n\ncrypto: qat - ADF_STATUS_PF_RUNNING should be set after adf_dev_init\n\nADF_STATUS_PF_RUNNING is (only) used and checked by adf_vf2pf_shutdown()\nbefore calling adf_iov_putmsg()-\u003emutex_lock(vf2pf_lock), however the\nvf2pf_lock is initialized in adf_dev_init(), which can fail and when it\nfail, the vf2pf_lock is either not initialized or destroyed, a subsequent\nuse of vf2pf_lock will cause issue.\nTo fix this issue, only set this flag if adf_dev_init() returns 0.\n\n[    7.178404] BUG: KASAN: user-memory-access in __mutex_lock.isra.0+0x1ac/0x7c0\n[    7.180345] Call Trace:\n[    7.182576]  mutex_lock+0xc9/0xd0\n[    7.183257]  adf_iov_putmsg+0x118/0x1a0 [intel_qat]\n[    7.183541]  adf_vf2pf_shutdown+0x4d/0x7b [intel_qat]\n[    7.183834]  adf_dev_shutdown+0x172/0x2b0 [intel_qat]\n[    7.184127]  adf_probe+0x5e9/0x600 [qat_dh895xccvf]"
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            "orgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
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            },
            {
              "url": "https://git.kernel.org/stable/c/8609f5cfdc872fc3a462efa6a3eca5cb1e2f6446"
            }
          ],
          "title": "crypto: qat - ADF_STATUS_PF_RUNNING should be set after adf_dev_init",
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        "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"
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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

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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.
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  • 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.


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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.