CVE-2022-50417 (GCVE-0-2022-50417)
Vulnerability from cvelistv5 – Published: 2025-09-18 16:04 – Updated: 2026-08-05 08:58
VLAI
EPSS
VEX
Title
drm/panfrost: Fix GEM handle creation ref-counting
Summary
In the Linux kernel, the following vulnerability has been resolved:
drm/panfrost: Fix GEM handle creation ref-counting
panfrost_gem_create_with_handle() previously returned a BO but with the
only reference being from the handle, which user space could in theory
guess and release, causing a use-after-free. Additionally if the call to
panfrost_gem_mapping_get() in panfrost_ioctl_create_bo() failed then
a(nother) reference on the BO was dropped.
The _create_with_handle() is a problematic pattern, so ditch it and
instead create the handle in panfrost_ioctl_create_bo(). If the call to
panfrost_gem_mapping_get() fails then this means that user space has
indeed gone behind our back and freed the handle. In which case just
return an error code.
Severity
7.8 (High)
SSVC
Exploitation: none
Automatable: no
Technical Impact: total
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2026-01-14 19:10 UTC
CWE
- CWE-416 - Use After Free
Assigner
References
Impacted products
2 products
| Vendor | Product | Version | CPE status | |
|---|---|---|---|---|
| Linux | Linux |
Affected:
f3ba91228e8e917e5bd6c4b72bfe846933d17370 , < 0b70f6ea4d4f2b4d4b291d86ab76b4d07394932c
(git)
Affected: f3ba91228e8e917e5bd6c4b72bfe846933d17370 , < 4f1105ee72d8c7c35d90e3491b31b2d9d6b7e33a (git) Affected: f3ba91228e8e917e5bd6c4b72bfe846933d17370 , < 3f9feffa8a5ab08b4e298a27b1aa7204a7d42ca2 (git) Affected: f3ba91228e8e917e5bd6c4b72bfe846933d17370 , < ba3d2c2380e7129b525a787489c0b7e819a3b898 (git) Affected: f3ba91228e8e917e5bd6c4b72bfe846933d17370 , < 4217c6ac817451d5116687f3cc6286220dc43d49 (git) |
guessed | |
| Linux | Linux |
Affected:
5.2
Unaffected: 0 , < 5.2 (semver) Unaffected: 5.10.163 , ≤ 5.10.* (semver) Unaffected: 5.15.87 , ≤ 5.15.* (semver) Unaffected: 6.0.19 , ≤ 6.0.* (semver) Unaffected: 6.1.5 , ≤ 6.1.* (semver) Unaffected: 6.2 , ≤ * (original_commit_for_fix) |
guessed |
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"baseSeverity": "HIGH",
"confidentialityImpact": "HIGH",
"integrityImpact": "HIGH",
"privilegesRequired": "LOW",
"scope": "UNCHANGED",
"userInteraction": "NONE",
"vectorString": "CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H",
"version": "3.1"
}
},
{
"other": {
"content": {
"id": "CVE-2022-50417",
"options": [
{
"Exploitation": "none"
},
{
"Automatable": "no"
},
{
"Technical Impact": "total"
}
],
"role": "CISA Coordinator",
"timestamp": "2026-01-14T19:10:45.262200Z",
"version": "2.0.3"
},
"type": "ssvc"
}
}
],
"problemTypes": [
{
"descriptions": [
{
"cweId": "CWE-416",
"description": "CWE-416 Use After Free",
"lang": "en",
"type": "CWE"
}
]
}
],
"providerMetadata": {
"dateUpdated": "2026-01-14T19:10:40.031Z",
"orgId": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
"shortName": "CISA-ADP"
},
"title": "CISA ADP Vulnrichment"
}
],
"cna": {
"affected": [
{
"defaultStatus": "unaffected",
"product": "Linux",
"programFiles": [
"drivers/gpu/drm/panfrost/panfrost_drv.c",
"drivers/gpu/drm/panfrost/panfrost_gem.c",
"drivers/gpu/drm/panfrost/panfrost_gem.h"
],
"repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
"vendor": "Linux",
"versions": [
{
"lessThan": "0b70f6ea4d4f2b4d4b291d86ab76b4d07394932c",
"status": "affected",
"version": "f3ba91228e8e917e5bd6c4b72bfe846933d17370",
"versionType": "git"
},
{
"lessThan": "4f1105ee72d8c7c35d90e3491b31b2d9d6b7e33a",
"status": "affected",
"version": "f3ba91228e8e917e5bd6c4b72bfe846933d17370",
"versionType": "git"
},
{
"lessThan": "3f9feffa8a5ab08b4e298a27b1aa7204a7d42ca2",
"status": "affected",
"version": "f3ba91228e8e917e5bd6c4b72bfe846933d17370",
"versionType": "git"
},
{
"lessThan": "ba3d2c2380e7129b525a787489c0b7e819a3b898",
"status": "affected",
"version": "f3ba91228e8e917e5bd6c4b72bfe846933d17370",
"versionType": "git"
},
{
"lessThan": "4217c6ac817451d5116687f3cc6286220dc43d49",
"status": "affected",
"version": "f3ba91228e8e917e5bd6c4b72bfe846933d17370",
"versionType": "git"
}
]
},
{
"defaultStatus": "affected",
"product": "Linux",
"programFiles": [
"drivers/gpu/drm/panfrost/panfrost_drv.c",
"drivers/gpu/drm/panfrost/panfrost_gem.c",
"drivers/gpu/drm/panfrost/panfrost_gem.h"
],
"repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
"vendor": "Linux",
"versions": [
{
"status": "affected",
"version": "5.2"
},
{
"lessThan": "5.2",
"status": "unaffected",
"version": "0",
"versionType": "semver"
},
{
"lessThanOrEqual": "5.10.*",
"status": "unaffected",
"version": "5.10.163",
"versionType": "semver"
},
{
"lessThanOrEqual": "5.15.*",
"status": "unaffected",
"version": "5.15.87",
"versionType": "semver"
},
{
"lessThanOrEqual": "6.0.*",
"status": "unaffected",
"version": "6.0.19",
"versionType": "semver"
},
{
"lessThanOrEqual": "6.1.*",
"status": "unaffected",
"version": "6.1.5",
"versionType": "semver"
},
{
"lessThanOrEqual": "*",
"status": "unaffected",
"version": "6.2",
"versionType": "original_commit_for_fix"
}
]
}
],
"cpeApplicability": [
{
"nodes": [
{
"cpeMatch": [
{
"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
"versionEndExcluding": "5.10.163",
"versionStartIncluding": "5.2",
"vulnerable": true
},
{
"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
"versionEndExcluding": "5.15.87",
"versionStartIncluding": "5.2",
"vulnerable": true
},
{
"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
"versionEndExcluding": "6.0.19",
"versionStartIncluding": "5.2",
"vulnerable": true
},
{
"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
"versionEndExcluding": "6.1.5",
"versionStartIncluding": "5.2",
"vulnerable": true
},
{
"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
"versionEndExcluding": "6.2",
"versionStartIncluding": "5.2",
"vulnerable": true
}
],
"negate": false,
"operator": "OR"
}
]
}
],
"descriptions": [
{
"lang": "en",
"value": "In the Linux kernel, the following vulnerability has been resolved:\n\ndrm/panfrost: Fix GEM handle creation ref-counting\n\npanfrost_gem_create_with_handle() previously returned a BO but with the\nonly reference being from the handle, which user space could in theory\nguess and release, causing a use-after-free. Additionally if the call to\npanfrost_gem_mapping_get() in panfrost_ioctl_create_bo() failed then\na(nother) reference on the BO was dropped.\n\nThe _create_with_handle() is a problematic pattern, so ditch it and\ninstead create the handle in panfrost_ioctl_create_bo(). If the call to\npanfrost_gem_mapping_get() fails then this means that user space has\nindeed gone behind our back and freed the handle. In which case just\nreturn an error code."
}
],
"providerMetadata": {
"dateUpdated": "2026-05-11T19:19:05.512Z",
"orgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
"shortName": "Linux"
},
"references": [
{
"url": "https://git.kernel.org/stable/c/0b70f6ea4d4f2b4d4b291d86ab76b4d07394932c"
},
{
"url": "https://git.kernel.org/stable/c/4f1105ee72d8c7c35d90e3491b31b2d9d6b7e33a"
},
{
"url": "https://git.kernel.org/stable/c/3f9feffa8a5ab08b4e298a27b1aa7204a7d42ca2"
},
{
"url": "https://git.kernel.org/stable/c/ba3d2c2380e7129b525a787489c0b7e819a3b898"
},
{
"url": "https://git.kernel.org/stable/c/4217c6ac817451d5116687f3cc6286220dc43d49"
}
],
"title": "drm/panfrost: Fix GEM handle creation ref-counting",
"x_generator": {
"engine": "bippy-1.2.0"
}
}
},
"cveMetadata": {
"assignerOrgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
"assignerShortName": "Linux",
"cveId": "CVE-2022-50417",
"datePublished": "2025-09-18T16:04:00.512Z",
"dateReserved": "2025-09-17T14:53:07.003Z",
"dateUpdated": "2026-05-11T19:19:05.512Z",
"state": "PUBLISHED"
},
"dataType": "CVE_RECORD",
"dataVersion": "5.2"
}
}
}
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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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