CVE-2021-46943 (GCVE-0-2021-46943)

Vulnerability from cvelistv5 – Published: 2024-02-27 18:40 – Updated: 2026-05-11 13:44
VLAI
Title
media: staging/intel-ipu3: Fix set_fmt error handling
Summary
In the Linux kernel, the following vulnerability has been resolved: media: staging/intel-ipu3: Fix set_fmt error handling If there in an error during a set_fmt, do not overwrite the previous sizes with the invalid config. Without this patch, v4l2-compliance ends up allocating 4GiB of RAM and causing the following OOPs [ 38.662975] ipu3-imgu 0000:00:05.0: swiotlb buffer is full (sz: 4096 bytes) [ 38.662980] DMA: Out of SW-IOMMU space for 4096 bytes at device 0000:00:05.0 [ 38.663010] general protection fault: 0000 [#1] PREEMPT SMP
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: 6d5f26f2e045f2377b524516194657c00efbbce8 , < a03fb1e8a110658215a4cefc3e2ad53279e496a6 (git)
Affected: 6d5f26f2e045f2377b524516194657c00efbbce8 , < c6b81b897f6f9445d57f8d47c4e060ec21556137 (git)
Affected: 6d5f26f2e045f2377b524516194657c00efbbce8 , < 34892ea938387d83ffcfb7775ec55f0f80767916 (git)
Affected: 6d5f26f2e045f2377b524516194657c00efbbce8 , < 6fb617e37a39db0a3eca4489431359d0bdf3b9bc (git)
Affected: 6d5f26f2e045f2377b524516194657c00efbbce8 , < ad91849996f9dd79741a961fd03585a683b08356 (git)
Create a notification for this product.
Linux Linux Affected: 5.2
Unaffected: 0 , < 5.2 (semver)
Unaffected: 5.4.118 , ≤ 5.4.* (semver)
Unaffected: 5.10.36 , ≤ 5.10.* (semver)
Unaffected: 5.11.20 , ≤ 5.11.* (semver)
Unaffected: 5.12.3 , ≤ 5.12.* (semver)
Unaffected: 5.13 , ≤ * (original_commit_for_fix)
Create a notification for this product.
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    "redhat_vex": {
      "aggregate_severity": "Moderate",
      "current_release_date": "2025-11-21T14:46:45+00:00",
      "cve": "CVE-2021-46943",
      "id": "CVE-2021-46943",
      "initial_release_date": "2021-01-01T00:00:00+00:00",
      "product_status:known_affected": "42",
      "product_status:known_not_affected": "156",
      "source": "Red Hat CSAF VEX",
      "status": "final",
      "title": "kernel: media: staging/intel-ipu3: Fix set_fmt error handling",
      "url": "https://security.access.redhat.com/data/csaf/v2/vex/2021/cve-2021-46943.json",
      "version": "3"
    },
    "suse_vex": {
      "aggregate_severity": "moderate",
      "current_release_date": "2026-06-06T06:09:14Z",
      "cve": "CVE-2021-46943",
      "id": "CVE-2021-46943",
      "initial_release_date": "2024-02-29T03:56:35Z",
      "product_status:known_affected": "376",
      "product_status:known_not_affected": "182",
      "product_status:recommended": "137",
      "source": "SUSE CSAF VEX",
      "status": "interim",
      "title": "SUSE CVE CVE-2021-46943",
      "url": "https://ftp.suse.com/pub/projects/security/csaf-vex/cve-2021-46943.json",
      "version": "37"
    },
    "vulnrichment": {
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      "cveMetadata": "{\"cveId\": \"CVE-2021-46943\", \"state\": \"PUBLISHED\", \"dateUpdated\": \"2026-05-11T13:44:54.460Z\", \"dateReserved\": \"2024-02-25T13:45:52.721Z\", \"assignerOrgId\": \"416baaa9-dc9f-4396-8d5f-8c081fb06d67\", \"datePublished\": \"2024-02-27T18:40:29.903Z\", \"assignerShortName\": \"Linux\"}",
      "dataType": "CVE_RECORD",
      "dataVersion": "5.2"
    }
  }
}



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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

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.