CVE-2022-50367 (GCVE-0-2022-50367)
Vulnerability from cvelistv5 – Published: 2025-09-17 14:56 – Updated: 2026-08-05 08:58
VLAI
EPSS
VEX
Title
fs: fix UAF/GPF bug in nilfs_mdt_destroy
Summary
In the Linux kernel, the following vulnerability has been resolved:
fs: fix UAF/GPF bug in nilfs_mdt_destroy
In alloc_inode, inode_init_always() could return -ENOMEM if
security_inode_alloc() fails, which causes inode->i_private
uninitialized. Then nilfs_is_metadata_file_inode() returns
true and nilfs_free_inode() wrongly calls nilfs_mdt_destroy(),
which frees the uninitialized inode->i_private
and leads to crashes(e.g., UAF/GPF).
Fix this by moving security_inode_alloc just prior to
this_cpu_inc(nr_inodes)
Severity
7.8 (High)
SSVC
Exploitation: none
Automatable: no
Technical Impact: total
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2026-01-14 18:35 UTC
CWE
- CWE-416 - Use After Free
Assigner
References
9 references
Impacted products
2 products
| Vendor | Product | Version | CPE status | |
|---|---|---|---|---|
| Linux | Linux |
Affected:
1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 , < d1ff475d7c83289d0a7faef346ea3bbf90818bad
(git)
Affected: 1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 , < c0aa76b0f17f59dd9c9d3463550a2986a1d592e4 (git) Affected: 1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 , < ec2aab115eb38ac4992ea2fcc2a02fbe7af5cf48 (git) Affected: 1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 , < 70e4f70d54e0225f91814e8610477d65f33cefe4 (git) Affected: 1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 , < 1e555c3ed1fce4b278aaebe18a64a934cece57d8 (git) Affected: 1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 , < 64b79e632869ad3ef6c098a4731d559381da1115 (git) Affected: 1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 , < 81de80330fa6907aec32eb54c5619059e6e36452 (git) Affected: 1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 , < 2a96b532098284ecf8e4849b8b9e5fc7a28bdee9 (git) Affected: 1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 , < 2e488f13755ffbb60f307e991b27024716a33b29 (git) |
guessed | |
| Linux | Linux |
Affected:
2.6.12
Unaffected: 0 , < 2.6.12 (semver) Unaffected: 4.9.331 , ≤ 4.9.* (semver) Unaffected: 4.14.296 , ≤ 4.14.* (semver) Unaffected: 4.19.262 , ≤ 4.19.* (semver) Unaffected: 5.4.218 , ≤ 5.4.* (semver) Unaffected: 5.10.148 , ≤ 5.10.* (semver) Unaffected: 5.15.73 , ≤ 5.15.* (semver) Unaffected: 5.19.15 , ≤ 5.19.* (semver) Unaffected: 6.0.1 , ≤ 6.0.* (semver) Unaffected: 6.1 , ≤ * (original_commit_for_fix) |
guessed |
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}
],
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{
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"value": "CWE-416"
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}
],
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}
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"id": "CVE-2022-50367",
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"product_status:fixed": "1800",
"product_status:known_affected": "36",
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"source": "Red Hat CSAF VEX",
"status": "final",
"title": "kernel: fs: fix UAF/GPF bug in nilfs_mdt_destroy",
"url": "https://security.access.redhat.com/data/csaf/v2/vex/2022/cve-2022-50367.json",
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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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