CVE-2022-49015 (GCVE-0-2022-49015)
Vulnerability from cvelistv5 – Published: 2024-10-21 20:06 – Updated: 2026-08-05 08:53
VLAI
EPSS
VEX
Title
net: hsr: Fix potential use-after-free
Summary
In the Linux kernel, the following vulnerability has been resolved:
net: hsr: Fix potential use-after-free
The skb is delivered to netif_rx() which may free it, after calling this,
dereferencing skb may trigger use-after-free.
Severity
8.8 (High)
SSVC
Exploitation: none
Automatable: no
Technical Impact: partial
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2024-10-22 13:13 UTC
Assigner
References
8 references
Impacted products
2 products
| Vendor | Product | Version | CPE status | |
|---|---|---|---|---|
| Linux | Linux |
Affected:
f421436a591d34fa5279b54a96ac07d70250cc8d , < 8393ce5040803666bfa26a3a7bf41e44fab0ace9
(git)
Affected: f421436a591d34fa5279b54a96ac07d70250cc8d , < 4b351609af4fdbc23f79ab2b12748f4403ea9af4 (git) Affected: f421436a591d34fa5279b54a96ac07d70250cc8d , < b35d899854d5d5d58eb7d7e7c0f61afc60d3a9e9 (git) Affected: f421436a591d34fa5279b54a96ac07d70250cc8d , < 53a62c5efe91665f7a41fad0f888a96f94dc59eb (git) Affected: f421436a591d34fa5279b54a96ac07d70250cc8d , < 7ca81a161e406834a1fdc405fc83a572bd14b8d9 (git) Affected: f421436a591d34fa5279b54a96ac07d70250cc8d , < dca370e575d9b6c983f5015e8dc035e23e219ee6 (git) Affected: f421436a591d34fa5279b54a96ac07d70250cc8d , < f3add2b8cf620966de3ebfa07679ca12d33ec26f (git) Affected: f421436a591d34fa5279b54a96ac07d70250cc8d , < 7e177d32442b7ed08a9fa61b61724abc548cb248 (git) |
guessed | |
| Linux | Linux |
Affected:
3.13
Unaffected: 0 , < 3.13 (semver) Unaffected: 4.9.335 , ≤ 4.9.* (semver) Unaffected: 4.14.301 , ≤ 4.14.* (semver) Unaffected: 4.19.268 , ≤ 4.19.* (semver) Unaffected: 5.4.226 , ≤ 5.4.* (semver) Unaffected: 5.10.158 , ≤ 5.10.* (semver) Unaffected: 5.15.82 , ≤ 5.15.* (semver) Unaffected: 6.0.12 , ≤ 6.0.* (semver) Unaffected: 6.1 , ≤ * (original_commit_for_fix) |
guessed |
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"redhat_vex": {
"aggregate_severity": "Moderate",
"current_release_date": "2026-09-13T18:28:03+00:00",
"cve": "CVE-2022-49015",
"id": "CVE-2022-49015",
"initial_release_date": "2022-01-01T00:00:00+00:00",
"product_status:known_affected": "108",
"product_status:known_not_affected": "90",
"source": "Red Hat CSAF VEX",
"status": "final",
"title": "kernel: net: hsr: Fix potential use-after-free",
"url": "https://security.access.redhat.com/data/csaf/v2/vex/2022/cve-2022-49015.json",
"version": "3"
},
"vulnrichment": {
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the attacker to be on the same LAN/ring segment as the HSR interfaces.\\nAC:L - An adjacent attacker can reliably deliver frames addressed to the HSR node (or multicast/broadcast) into the vulnerable deliver path; use-after-free triggering does not depend on conditions outside the attacker\u0027s ability to send traffic.\\nPR:N - Exploitation is on the unauthenticated packet-receive path of an already-configured HSR device; no credentials or privileges are required of the remote adjacent attacker.\\nUI:N - Frames are processed automatically by the kernel HSR rx_handler with no user action required.\\nS:U - Impact is confined to the host kernel that runs the HSR stack; there is no cross-authority boundary such as a VM or IOMMU escape.\\nC:H - This is a use-after-free on an sk_buff; UAF on freed heap objects can be leveraged for arbitrary kernel memory disclosure.\\nI:H - sk_buff use-after-free enables heap reuse/spraying and control-flow hijacking primitives, so integrity impact is 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"dataType": "CVE_RECORD",
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}
}
}
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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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