CVE-2022-50301 (GCVE-0-2022-50301)
Vulnerability from cvelistv5 – Published: 2025-09-15 14:45 – Updated: 2026-05-11 19:16
VLAI
EPSS
VEX
Title
iommu/omap: Fix buffer overflow in debugfs
Summary
In the Linux kernel, the following vulnerability has been resolved:
iommu/omap: Fix buffer overflow in debugfs
There are two issues here:
1) The "len" variable needs to be checked before the very first write.
Otherwise if omap2_iommu_dump_ctx() with "bytes" less than 32 it is a
buffer overflow.
2) The snprintf() function returns the number of bytes that *would* have
been copied if there were enough space. But we want to know the
number of bytes which were *actually* copied so use scnprintf()
instead.
Severity
7.8 (High)
Assigner
References
9 references
Impacted products
2 products
| Vendor | Product | Version | |
|---|---|---|---|
| Linux | Linux |
Affected:
bd4396f09a4a9e77423e92ec9448217ab46f6edf , < 706e359cf046c142db290244c3f4938b20fbe805
(git)
Affected: bd4396f09a4a9e77423e92ec9448217ab46f6edf , < ec53b99b6b9da8b501f001595a6260c03b42d5b7 (git) Affected: bd4396f09a4a9e77423e92ec9448217ab46f6edf , < 648472df221f2bbffb433b964bcb87baccc586d8 (git) Affected: bd4396f09a4a9e77423e92ec9448217ab46f6edf , < 4010a1afaae1c0fb9c2cac5de703bed29b1f1782 (git) Affected: bd4396f09a4a9e77423e92ec9448217ab46f6edf , < 2fee0dbfaeaaa4bda04279ce772c4572b1429d04 (git) Affected: bd4396f09a4a9e77423e92ec9448217ab46f6edf , < 0c7043a5b5c3b35f5dc8875757f71e7f491d64d4 (git) Affected: bd4396f09a4a9e77423e92ec9448217ab46f6edf , < bd0438f534b2e31b12f0b39b355c5dc2bbdaf854 (git) Affected: bd4396f09a4a9e77423e92ec9448217ab46f6edf , < 9814cc350e0765ce69244bf55ae4c8b29facd27e (git) Affected: bd4396f09a4a9e77423e92ec9448217ab46f6edf , < 184233a5202786b20220acd2d04ddf909ef18f29 (git) |
|
| Linux | Linux |
Affected:
3.19
Unaffected: 0 , < 3.19 (semver) Unaffected: 4.9.331 , ≤ 4.9.* (semver) Unaffected: 4.14.296 , ≤ 4.14.* (semver) Unaffected: 4.19.262 , ≤ 4.19.* (semver) Unaffected: 5.4.220 , ≤ 5.4.* (semver) Unaffected: 5.10.150 , ≤ 5.10.* (semver) Unaffected: 5.15.75 , ≤ 5.15.* (semver) Unaffected: 5.19.17 , ≤ 5.19.* (semver) Unaffected: 6.0.3 , ≤ 6.0.* (semver) Unaffected: 6.1 , ≤ * (original_commit_for_fix) |
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}
],
"source": "nvd@nist.gov",
"type": "Primary"
}
]
}
},
"redhat_vex": {
"aggregate_severity": "None",
"current_release_date": "2026-06-30T10:27:04+00:00",
"cve": "CVE-2022-50301",
"id": "CVE-2022-50301",
"initial_release_date": "2022-01-01T00:00:00+00:00",
"product_status:known_not_affected": "274",
"source": "Red Hat CSAF VEX",
"status": "final",
"title": "kernel: iommu/omap: Fix buffer overflow in debugfs",
"url": "https://security.access.redhat.com/data/csaf/v2/vex/2022/cve-2022-50301.json",
"version": "3"
},
"suse_vex": {
"aggregate_severity": "moderate",
"current_release_date": "2026-10-12T00:41:34Z",
"cve": "CVE-2022-50301",
"id": "CVE-2022-50301",
"initial_release_date": "2025-09-15T23:29:31Z",
"product_status:known_affected": "465",
"product_status:known_not_affected": "274",
"product_status:recommended": "206",
"source": "SUSE CSAF VEX",
"status": "interim",
"title": "SUSE CVE CVE-2022-50301",
"url": "https://ftp.suse.com/pub/projects/security/csaf-vex/cve-2022-50301.json",
"version": "34"
}
}
}
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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.
Browse all ATT&CK techniques and the vulnerabilities related to each.
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.
Browse all ATT&CK techniques and the vulnerabilities related to each.
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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.
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