CVE-2021-47501 (GCVE-0-2021-47501)
Vulnerability from cvelistv5 – Published: 2024-05-24 15:01 – Updated: 2026-05-11 13:55
VLAI
EPSS
VEX
Title
i40e: Fix NULL pointer dereference in i40e_dbg_dump_desc
Summary
In the Linux kernel, the following vulnerability has been resolved:
i40e: Fix NULL pointer dereference in i40e_dbg_dump_desc
When trying to dump VFs VSI RX/TX descriptors
using debugfs there was a crash
due to NULL pointer dereference in i40e_dbg_dump_desc.
Added a check to i40e_dbg_dump_desc that checks if
VSI type is correct for dumping RX/TX descriptors.
Severity
No CVSS data available.
SSVC
Exploitation: none
Automatable: no
Technical Impact: partial
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2024-06-10 18:53 UTC
Assigner
References
Impacted products
2 products
| Vendor | Product | Version | CPE status | |
|---|---|---|---|---|
| Linux | Linux |
Affected:
02e9c290814cc143ceccecb14eac3e7a05da745e , < e5b7fb2198abc50058f1a29c395b004f76ab1c83
(git)
Affected: 02e9c290814cc143ceccecb14eac3e7a05da745e , < 16431e442db248ecd8aa9457cf0a656f1885f56e (git) Affected: 02e9c290814cc143ceccecb14eac3e7a05da745e , < 23ec111bf3549aae37140330c31a16abfc172421 (git) |
guessed | |
| Linux | Linux |
Affected:
3.12
Unaffected: 0 , < 3.12 (semver) Unaffected: 5.10.85 , ≤ 5.10.* (semver) Unaffected: 5.15.8 , ≤ 5.15.* (semver) Unaffected: 5.16 , ≤ * (original_commit_for_fix) |
guessed |
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"containers": "{\"adp\": [{\"title\": \"CVE Program Container\", \"references\": [{\"url\": \"https://git.kernel.org/stable/c/e5b7fb2198abc50058f1a29c395b004f76ab1c83\", \"tags\": [\"x_transferred\"]}, {\"url\": \"https://git.kernel.org/stable/c/16431e442db248ecd8aa9457cf0a656f1885f56e\", \"tags\": [\"x_transferred\"]}, {\"url\": \"https://git.kernel.org/stable/c/23ec111bf3549aae37140330c31a16abfc172421\", \"tags\": [\"x_transferred\"]}], \"providerMetadata\": {\"orgId\": \"af854a3a-2127-422b-91ae-364da2661108\", \"shortName\": \"CVE\", \"dateUpdated\": \"2024-08-04T05:39:59.819Z\"}}, {\"title\": \"CISA ADP Vulnrichment\", \"metrics\": [{\"other\": {\"type\": \"ssvc\", \"content\": {\"id\": \"CVE-2021-47501\", \"role\": \"CISA Coordinator\", \"options\": [{\"Exploitation\": \"none\"}, {\"Automatable\": \"no\"}, {\"Technical Impact\": \"partial\"}], \"version\": \"2.0.3\", \"timestamp\": \"2024-06-10T18:53:53.614307Z\"}}}], \"providerMetadata\": {\"orgId\": \"134c704f-9b21-4f2e-91b3-4a467353bcc0\", \"shortName\": \"CISA-ADP\", \"dateUpdated\": \"2024-06-10T18:54:00.536Z\"}}], \"cna\": {\"title\": \"i40e: Fix NULL pointer dereference in i40e_dbg_dump_desc\", \"affected\": [{\"repo\": \"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git\", \"vendor\": \"Linux\", \"product\": \"Linux\", \"versions\": [{\"status\": \"affected\", \"version\": \"02e9c290814cc143ceccecb14eac3e7a05da745e\", \"lessThan\": \"e5b7fb2198abc50058f1a29c395b004f76ab1c83\", \"versionType\": \"git\"}, {\"status\": \"affected\", \"version\": \"02e9c290814cc143ceccecb14eac3e7a05da745e\", \"lessThan\": \"16431e442db248ecd8aa9457cf0a656f1885f56e\", \"versionType\": \"git\"}, {\"status\": \"affected\", \"version\": \"02e9c290814cc143ceccecb14eac3e7a05da745e\", \"lessThan\": \"23ec111bf3549aae37140330c31a16abfc172421\", \"versionType\": \"git\"}], \"programFiles\": [\"drivers/net/ethernet/intel/i40e/i40e_debugfs.c\"], \"defaultStatus\": \"unaffected\"}, {\"repo\": \"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git\", \"vendor\": \"Linux\", \"product\": \"Linux\", \"versions\": [{\"status\": \"affected\", \"version\": \"3.12\"}, {\"status\": \"unaffected\", \"version\": \"0\", \"lessThan\": \"3.12\", \"versionType\": \"semver\"}, {\"status\": \"unaffected\", \"version\": \"5.10.85\", \"versionType\": \"semver\", \"lessThanOrEqual\": \"5.10.*\"}, {\"status\": \"unaffected\", \"version\": \"5.15.8\", \"versionType\": \"semver\", \"lessThanOrEqual\": \"5.15.*\"}, {\"status\": \"unaffected\", \"version\": \"5.16\", \"versionType\": \"original_commit_for_fix\", \"lessThanOrEqual\": \"*\"}], \"programFiles\": [\"drivers/net/ethernet/intel/i40e/i40e_debugfs.c\"], \"defaultStatus\": \"affected\"}], \"references\": [{\"url\": \"https://git.kernel.org/stable/c/e5b7fb2198abc50058f1a29c395b004f76ab1c83\"}, {\"url\": \"https://git.kernel.org/stable/c/16431e442db248ecd8aa9457cf0a656f1885f56e\"}, {\"url\": \"https://git.kernel.org/stable/c/23ec111bf3549aae37140330c31a16abfc172421\"}], \"x_generator\": {\"engine\": \"bippy-1.2.0\"}, \"descriptions\": [{\"lang\": \"en\", \"value\": \"In the Linux kernel, the following vulnerability has been resolved:\\n\\ni40e: Fix NULL pointer dereference in i40e_dbg_dump_desc\\n\\nWhen trying to dump VFs VSI RX/TX descriptors\\nusing debugfs there was a crash\\ndue to NULL pointer dereference in i40e_dbg_dump_desc.\\nAdded a check to i40e_dbg_dump_desc that checks if\\nVSI type is correct for dumping RX/TX descriptors.\"}], \"cpeApplicability\": [{\"nodes\": [{\"negate\": false, \"cpeMatch\": [{\"criteria\": \"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*\", \"vulnerable\": true, \"versionEndExcluding\": \"5.10.85\", \"versionStartIncluding\": \"3.12\"}, {\"criteria\": \"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*\", \"vulnerable\": true, \"versionEndExcluding\": \"5.15.8\", \"versionStartIncluding\": \"3.12\"}, {\"criteria\": \"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*\", \"vulnerable\": true, \"versionEndExcluding\": \"5.16\", \"versionStartIncluding\": \"3.12\"}], \"operator\": \"OR\"}]}], \"providerMetadata\": {\"orgId\": \"416baaa9-dc9f-4396-8d5f-8c081fb06d67\", \"shortName\": \"Linux\", \"dateUpdated\": \"2025-05-04T07:12:23.634Z\"}}}",
"cveMetadata": "{\"cveId\": \"CVE-2021-47501\", \"state\": \"PUBLISHED\", \"dateUpdated\": \"2025-05-04T07:12:23.634Z\", \"dateReserved\": \"2024-05-22T06:20:56.204Z\", \"assignerOrgId\": \"416baaa9-dc9f-4396-8d5f-8c081fb06d67\", \"datePublished\": \"2024-05-24T15:01:49.040Z\", \"assignerShortName\": \"Linux\"}",
"dataType": "CVE_RECORD",
"dataVersion": "5.1"
}
}
}
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Experimental. This forecast is provided for visualization only and may change without notice. Do not use it for operational decisions.
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.
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The MITRE ATT&CK techniques below are AI-generated suggestions, inferred from the description of the
vulnerability by the CIRCL/vulnerability-attack-technique-classification-roberta-base
model, served locally by ML-Gateway.
They have not been verified by an analyst and are provided for guidance only.
The approach is described in our paper Mapping CVEs to MITRE ATT&CK Techniques: A Curated Gold-Set Classifier and the Limits of LLM-Assisted Label Expansion.
The approach is described in our paper Mapping CVEs to MITRE ATT&CK Techniques: A Curated Gold-Set Classifier and the Limits of LLM-Assisted Label Expansion.
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