CVE-2022-3910 (GCVE-0-2022-3910)
Vulnerability from cvelistv5 – Published: 2022-11-22 12:12 – Updated: 2025-04-21 13:46
VLAI
EPSS
VEX
Title
Use after free in IO_uring in the Linux Kernel
Summary
Use After Free vulnerability in Linux Kernel allows Privilege Escalation. An improper Update of Reference Count in io_uring leads to Use-After-Free and Local Privilege Escalation.
When io_msg_ring was invoked with a fixed file, it called io_fput_file() which improperly decreased its reference count (leading to Use-After-Free and Local Privilege Escalation). Fixed files are permanently registered to the ring, and should not be put separately.
We recommend upgrading past commit https://github.com/torvalds/linux/commit/fc7222c3a9f56271fba02aabbfbae999042f1679 https://github.com/torvalds/linux/commit/fc7222c3a9f56271fba02aabbfbae999042f1679
Severity
7.8 (High)
SSVC
Exploitation: none
Automatable: no
Technical Impact: total
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2025-04-21 13:37 UTC
CWE
- CWE-416 - Use After Free
Assigner
References
Impacted products
1 product
| Vendor | Product | Version | CPE status | |
|---|---|---|---|---|
| Linux | Linux Kernel |
Affected:
5.18.0 , ≤ 5.19.10
(custom)
|
guessed |
Date Public
2022-05-16 22:00
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"title": "CVE Program Container"
},
{
"metrics": [
{
"other": {
"content": {
"id": "CVE-2022-3910",
"options": [
{
"Exploitation": "none"
},
{
"Automatable": "no"
},
{
"Technical Impact": "total"
}
],
"role": "CISA Coordinator",
"timestamp": "2025-04-21T13:37:05.356078Z",
"version": "2.0.3"
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"providerMetadata": {
"dateUpdated": "2025-04-21T13:37:06.651Z",
"orgId": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
"shortName": "CISA-ADP"
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"title": "CISA ADP Vulnrichment"
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],
"cna": {
"affected": [
{
"defaultStatus": "unaffected",
"packageName": "kernel",
"product": "Linux Kernel",
"repo": "https://git.kernel.org",
"vendor": "Linux",
"versions": [
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"lessThanOrEqual": "5.19.10",
"status": "affected",
"version": "5.18.0",
"versionType": "custom"
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"credits": [
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"lang": "en",
"type": "finder",
"user": "00000000-0000-4000-9000-000000000000",
"value": "Bing-Jhong Billy Jheng of Starlabs"
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"datePublic": "2022-05-16T22:00:00.000Z",
"descriptions": [
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"metrics": [
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"attackVector": "LOCAL",
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"userInteraction": "NONE",
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"format": "CVSS",
"scenarios": [
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"problemTypes": [
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"descriptions": [
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"cweId": "CWE-416",
"description": "CWE-416 Use After Free",
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"type": "CWE"
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"providerMetadata": {
"dateUpdated": "2022-11-22T12:26:26.702Z",
"orgId": "14ed7db2-1595-443d-9d34-6215bf890778",
"shortName": "Google"
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"references": [
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"url": "https://github.com/torvalds/linux/commit/fc7222c3a9f56271fba02aabbfbae999042f1679"
},
{
"url": "https://kernel.dance/#fc7222c3a9f56271fba02aabbfbae999042f1679"
}
],
"source": {
"discovery": "EXTERNAL"
},
"title": "Use after free in IO_uring in the Linux Kernel",
"x_generator": {
"engine": "Vulnogram 0.1.0-dev"
}
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},
"cveMetadata": {
"assignerOrgId": "14ed7db2-1595-443d-9d34-6215bf890778",
"assignerShortName": "Google",
"cveId": "CVE-2022-3910",
"datePublished": "2022-11-22T12:12:16.700Z",
"dateReserved": "2022-11-09T12:57:22.704Z",
"dateUpdated": "2025-04-21T13:46:13.836Z",
"requesterUserId": "ed9b5bb2-2df1-4aa3-9791-5fb260d88e62",
"state": "PUBLISHED"
},
"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.
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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