CVE-2022-26356 (GCVE-0-2022-26356)
Vulnerability from cvelistv5 – Published: 2022-04-05 00:00 – Updated: 2024-08-03 05:03
VLAI
EPSS
VEX
Summary
Racy interactions between dirty vram tracking and paging log dirty hypercalls Activation of log dirty mode done by XEN_DMOP_track_dirty_vram (was named HVMOP_track_dirty_vram before Xen 4.9) is racy with ongoing log dirty hypercalls. A suitably timed call to XEN_DMOP_track_dirty_vram can enable log dirty while another CPU is still in the process of tearing down the structures related to a previously enabled log dirty mode (XEN_DOMCTL_SHADOW_OP_OFF). This is due to lack of mutually exclusive locking between both operations and can lead to entries being added in already freed slots, resulting in a memory leak.
Severity
No CVSS data available.
CWE
- unknown
Assigner
References
7 references
| URL | Tags |
|---|---|
| https://xenbits.xenproject.org/xsa/advisory-397.txt | |
| http://xenbits.xen.org/xsa/advisory-397.html | |
| http://www.openwall.com/lists/oss-security/2022/04/05/1 | mailing-list |
| https://www.debian.org/security/2022/dsa-5117 | vendor-advisory |
| https://lists.fedoraproject.org/archives/list/pac… | vendor-advisory |
| https://lists.fedoraproject.org/archives/list/pac… | vendor-advisory |
| https://security.gentoo.org/glsa/202402-07 | vendor-advisory |
Impacted products
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"id": "CVE-2022-26356",
"lastModified": "2024-11-21T06:53:49.023",
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"published": "2022-04-05T13:15:07.727",
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"redhat_vex": {
"current_release_date": "2026-03-27T12:39:34+00:00",
"cve": "CVE-2022-26356",
"id": "CVE-2022-26356",
"initial_release_date": "2022-01-01T00:00:00+00:00",
"product_status:known_not_affected": "1",
"source": "Red Hat CSAF VEX",
"status": "final",
"title": "CVE-2022-26356",
"url": "https://security.access.redhat.com/data/csaf/v2/vex/2022/cve-2022-26356.json",
"version": "3"
},
"suse_vex": {
"aggregate_severity": "moderate",
"current_release_date": "2026-08-31T01:45:23Z",
"cve": "CVE-2022-26356",
"id": "CVE-2022-26356",
"initial_release_date": "2023-02-15T03:27:14Z",
"product_status:known_affected": "349",
"product_status:known_not_affected": "46",
"product_status:recommended": "445",
"source": "SUSE CSAF VEX",
"status": "interim",
"title": "SUSE CVE CVE-2022-26356",
"url": "https://ftp.suse.com/pub/projects/security/csaf-vex/cve-2022-26356.json",
"version": "38"
}
}
}
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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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