CVE-2021-47003 (GCVE-0-2021-47003)

Vulnerability from cvelistv5 – Published: 2024-02-28 08:13 – Updated: 2026-05-23 15:19
VLAI
Title
dmaengine: idxd: Fix potential null dereference on pointer status
Summary
In the Linux kernel, the following vulnerability has been resolved: dmaengine: idxd: Fix potential null dereference on pointer status There are calls to idxd_cmd_exec that pass a null status pointer however a recent commit has added an assignment to *status that can end up with a null pointer dereference. The function expects a null status pointer sometimes as there is a later assignment to *status where status is first null checked. Fix the issue by null checking status before making the assignment. Addresses-Coverity: ("Explicit null dereferenced")
Severity
No CVSS data available.
SSVC
Exploitation: none Automatable: no Technical Impact: partial
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2024-02-28 19:56 UTC
Assigner
References
Impacted products
Vendor Product Version CPE status
Linux Linux Affected: 40e3b5c128645d2ddad12310c7be98758cafb2b0 , < 5756f757c72501ef1a16f5f63f940623044180e9 (git)
Affected: 89e3becd8f821e507052e012d2559dcda59f538e , < 2280b4cc29d8cdd2be3d1b2d1ea4f958e2131c97 (git)
Affected: 89e3becd8f821e507052e012d2559dcda59f538e , < 7bc402f843e7817a4a808e7b9ab0bcd7ffd55bfa (git)
Affected: 89e3becd8f821e507052e012d2559dcda59f538e , < 28ac8e03c43dfc6a703aa420d18222540b801120 (git)
Affected: 5.10.17 , < 5.10.38 (semver)
guessed Create a notification for this product.
Linux Linux Affected: 5.11
Unaffected: 0 , < 5.11 (semver)
Unaffected: 5.10.38 , ≤ 5.10.* (semver)
Unaffected: 5.11.22 , ≤ 5.11.* (semver)
Unaffected: 5.12.5 , ≤ 5.12.* (semver)
Unaffected: 5.13 , ≤ * (original_commit_for_fix)
guessed Create a notification for this product.
Show details on NVD website
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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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  • 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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  • 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.



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.