CVE-2026-63847 (GCVE-0-2026-63847)
Vulnerability from cvelistv5 – Published: 2026-07-19 14:04 – Updated: 2026-08-05 12:36
VLAI
EPSS
VEX
Title
drm/amdgpu/jpeg: set no_user_fence for JPEG v2.5 ring
Summary
In the Linux kernel, the following vulnerability has been resolved:
drm/amdgpu/jpeg: set no_user_fence for JPEG v2.5 ring
JPEG rings do not support 64-bit user fence writes, reject CS
submissions with user fences.
(cherry picked from commit 3216a7f4e2642bda5fd14f57586e835ae9202587)
Severity
7.8 (High)
Assigner
References
Impacted products
2 products
| Vendor | Product | Version | CPE status | |
|---|---|---|---|---|
| Linux | Linux |
Affected:
14f43e8f88c57bbeaed3d05f13efab733f5e2338 , < 63691e396105611173072ad548fc2b68831ecf23
(git)
Affected: 14f43e8f88c57bbeaed3d05f13efab733f5e2338 , < 4d96e3cbfc66e4d66ea0096bde858e28ab62da00 (git) Affected: 14f43e8f88c57bbeaed3d05f13efab733f5e2338 , < 3a96fee676fc0caf08f03ad915bec6fcd144d551 (git) Affected: 14f43e8f88c57bbeaed3d05f13efab733f5e2338 , < 694fe016969c5e5a24b9e0ef7c1307eedec8ddf8 (git) Affected: 14f43e8f88c57bbeaed3d05f13efab733f5e2338 , < 79405e774ede411c6b47ed41c651e40b92de64a2 (git) |
guessed | |
| Linux | Linux |
Affected:
5.6
Unaffected: 0 , < 5.6 (semver) Unaffected: 6.6.141 , ≤ 6.6.* (semver) Unaffected: 6.12.91 , ≤ 6.12.* (semver) Unaffected: 6.18.33 , ≤ 6.18.* (semver) Unaffected: 7.0.10 , ≤ 7.0.* (semver) Unaffected: 7.1 , ≤ * (original_commit_for_fix) |
guessed |
{
"containers": {
"cna": {
"affected": [
{
"defaultStatus": "unaffected",
"product": "Linux",
"programFiles": [
"drivers/gpu/drm/amd/amdgpu/jpeg_v2_5.c"
],
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"vendor": "Linux",
"versions": [
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"status": "affected",
"version": "14f43e8f88c57bbeaed3d05f13efab733f5e2338",
"versionType": "git"
},
{
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"status": "affected",
"version": "14f43e8f88c57bbeaed3d05f13efab733f5e2338",
"versionType": "git"
},
{
"lessThan": "3a96fee676fc0caf08f03ad915bec6fcd144d551",
"status": "affected",
"version": "14f43e8f88c57bbeaed3d05f13efab733f5e2338",
"versionType": "git"
},
{
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"status": "affected",
"version": "14f43e8f88c57bbeaed3d05f13efab733f5e2338",
"versionType": "git"
},
{
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"versionType": "git"
}
]
},
{
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"product": "Linux",
"programFiles": [
"drivers/gpu/drm/amd/amdgpu/jpeg_v2_5.c"
],
"repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
"vendor": "Linux",
"versions": [
{
"status": "affected",
"version": "5.6"
},
{
"lessThan": "5.6",
"status": "unaffected",
"version": "0",
"versionType": "semver"
},
{
"lessThanOrEqual": "6.6.*",
"status": "unaffected",
"version": "6.6.141",
"versionType": "semver"
},
{
"lessThanOrEqual": "6.12.*",
"status": "unaffected",
"version": "6.12.91",
"versionType": "semver"
},
{
"lessThanOrEqual": "6.18.*",
"status": "unaffected",
"version": "6.18.33",
"versionType": "semver"
},
{
"lessThanOrEqual": "7.0.*",
"status": "unaffected",
"version": "7.0.10",
"versionType": "semver"
},
{
"lessThanOrEqual": "*",
"status": "unaffected",
"version": "7.1",
"versionType": "original_commit_for_fix"
}
]
}
],
"cpeApplicability": [
{
"nodes": [
{
"cpeMatch": [
{
"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
"versionEndExcluding": "6.6.141",
"versionStartIncluding": "5.6",
"vulnerable": true
},
{
"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
"versionEndExcluding": "6.12.91",
"versionStartIncluding": "5.6",
"vulnerable": true
},
{
"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
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"versionStartIncluding": "5.6",
"vulnerable": true
},
{
"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
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"versionStartIncluding": "5.6",
"vulnerable": true
},
{
"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
"versionEndExcluding": "7.1",
"versionStartIncluding": "5.6",
"vulnerable": true
}
],
"negate": false,
"operator": "OR"
}
]
}
],
"descriptions": [
{
"lang": "en",
"value": "In the Linux kernel, the following vulnerability has been resolved:\n\ndrm/amdgpu/jpeg: set no_user_fence for JPEG v2.5 ring\n\nJPEG rings do not support 64-bit user fence writes, reject CS\nsubmissions with user fences.\n\n(cherry picked from commit 3216a7f4e2642bda5fd14f57586e835ae9202587)"
}
],
"metrics": [
{
"cvssV3_1": {
"baseScore": 7.8,
"baseSeverity": "HIGH",
"vectorString": "CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H",
"version": "3.1"
},
"scenarios": [
{
"lang": "en",
"value": "AV:L - Exploitation requires issuing DRM_IOCTL_AMDGPU_CS against /dev/dri/renderD* on a system with an affected AMD Instinct GPU (MI100/MI200); this is a local ioctl path, not reachable over the network.\nAC:L - An attacker with render-node access can deterministically submit a JPEG-ring command buffer (AMDGPU_HW_IP_VCN_JPEG) with an AMDGPU_CHUNK_ID_FENCE chunk; no race or special system state is required beyond the vulnerable hardware being present.\nPR:L - The amdgpu_cs_ioctl entry point requires only DRM render-client access (DRM_AUTH|DRM_RENDER_ALLOW), which is granted to unprivileged local users in the render/video group or cloud GPU tenants with device access\u2014not root or CAP_SYS_ADMIN.\nUI:N - Exploitation is fully programmatic via ioctl submission and does not require any action from another user or administrator.\nS:U - The corrupting GPU fence write is issued within the attacker\u0027s own DRM/GPU context and VM; impact remains within the same security authority and does not constitute a demonstrated VM escape or IOMMU boundary bypass.\nC:H - The malformed 64-bit user fence write on unsupported JPEG hardware causes GPU-initiated memory corruption at an attacker-chosen address, which can be leveraged for arbitrary memory disclosure beyond a bounded leak.\nI:H - The vulnerability gives the attacker a GPU DMA write primitive to user-specified GPU-mapped memory, enabling arbitrary data modification and potential further exploitation such as privilege escalation.\nA:H - Triggering an unsupported 64-bit fence operation on the JPEG engine can cause GPU faults, driver hangs, or kernel oops/panic, impacting system availability."
}
]
}
],
"providerMetadata": {
"dateUpdated": "2026-08-05T12:36:25.201Z",
"orgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
"shortName": "Linux"
},
"references": [
{
"url": "https://git.kernel.org/stable/c/63691e396105611173072ad548fc2b68831ecf23"
},
{
"url": "https://git.kernel.org/stable/c/4d96e3cbfc66e4d66ea0096bde858e28ab62da00"
},
{
"url": "https://git.kernel.org/stable/c/3a96fee676fc0caf08f03ad915bec6fcd144d551"
},
{
"url": "https://git.kernel.org/stable/c/694fe016969c5e5a24b9e0ef7c1307eedec8ddf8"
},
{
"url": "https://git.kernel.org/stable/c/79405e774ede411c6b47ed41c651e40b92de64a2"
}
],
"title": "drm/amdgpu/jpeg: set no_user_fence for JPEG v2.5 ring",
"x_generator": {
"engine": "bippy-1.2.0"
}
}
},
"cveMetadata": {
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"assignerShortName": "Linux",
"cveId": "CVE-2026-63847",
"datePublished": "2026-07-19T14:04:40.248Z",
"dateReserved": "2026-07-19T07:54:57.016Z",
"dateUpdated": "2026-08-05T12:36:25.201Z",
"state": "PUBLISHED"
},
"dataType": "CVE_RECORD",
"dataVersion": "5.2",
"vulnerability-lookup:meta": {
"epss": {
"cve": "CVE-2026-63847",
"date": "2026-09-21",
"epss": "0.00141",
"percentile": "0.03801"
},
"nvd": {
"cve": {
"affected": [
{
"affectedData": [
{
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"product": "Linux",
"programFiles": [
"drivers/gpu/drm/amd/amdgpu/jpeg_v2_5.c"
],
"repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
"vendor": "Linux",
"versions": [
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"status": "affected",
"version": "14f43e8f88c57bbeaed3d05f13efab733f5e2338",
"versionType": "git"
},
{
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"status": "affected",
"version": "14f43e8f88c57bbeaed3d05f13efab733f5e2338",
"versionType": "git"
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{
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"status": "affected",
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"versionType": "git"
},
{
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},
{
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"status": "affected",
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"versionType": "git"
}
]
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"product": "Linux",
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],
"repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
"vendor": "Linux",
"versions": [
{
"status": "affected",
"version": "5.6"
},
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"status": "unaffected",
"version": "0",
"versionType": "semver"
},
{
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"status": "unaffected",
"version": "6.6.141",
"versionType": "semver"
},
{
"lessThanOrEqual": "6.12.*",
"status": "unaffected",
"version": "6.12.91",
"versionType": "semver"
},
{
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"status": "unaffected",
"version": "6.18.33",
"versionType": "semver"
},
{
"lessThanOrEqual": "7.0.*",
"status": "unaffected",
"version": "7.0.10",
"versionType": "semver"
},
{
"lessThanOrEqual": "*",
"status": "unaffected",
"version": "7.1",
"versionType": "original_commit_for_fix"
}
]
}
],
"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67"
}
],
"cveTags": [],
"descriptions": [
{
"lang": "en",
"value": "In the Linux kernel, the following vulnerability has been resolved:\n\ndrm/amdgpu/jpeg: set no_user_fence for JPEG v2.5 ring\n\nJPEG rings do not support 64-bit user fence writes, reject CS\nsubmissions with user fences.\n\n(cherry picked from commit 3216a7f4e2642bda5fd14f57586e835ae9202587)"
}
],
"id": "CVE-2026-63847",
"lastModified": "2026-07-27T17:44:23.777",
"metrics": {
"cvssMetricV31": [
{
"cvssData": {
"attackComplexity": "LOW",
"attackVector": "LOCAL",
"availabilityImpact": "HIGH",
"baseScore": 7.8,
"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"
},
"exploitabilityScore": 1.8,
"impactScore": 5.9,
"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
"type": "Secondary"
}
]
},
"published": "2026-07-19T15:16:51.497",
"references": [
{
"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
"url": "https://git.kernel.org/stable/c/3a96fee676fc0caf08f03ad915bec6fcd144d551"
},
{
"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
"url": "https://git.kernel.org/stable/c/4d96e3cbfc66e4d66ea0096bde858e28ab62da00"
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{
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{
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"url": "https://git.kernel.org/stable/c/79405e774ede411c6b47ed41c651e40b92de64a2"
}
],
"sourceIdentifier": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
"vulnStatus": "Awaiting Analysis"
}
},
"redhat_vex": {
"aggregate_severity": "Moderate",
"current_release_date": "2026-07-31T19:39:09+00:00",
"cve": "CVE-2026-63847",
"id": "CVE-2026-63847",
"initial_release_date": "2026-07-19T00:00:00+00:00",
"product_status:known_affected": "198",
"product_status:known_not_affected": "76",
"source": "Red Hat CSAF VEX",
"status": "final",
"title": "kernel: drm/amdgpu/jpeg: set no_user_fence for JPEG v2.5 ring",
"url": "https://security.access.redhat.com/data/csaf/v2/vex/2026/cve-2026-63847.json",
"version": "3"
},
"suse_vex": {
"aggregate_severity": "moderate",
"current_release_date": "2026-09-18T00:47:38Z",
"cve": "CVE-2026-63847",
"id": "CVE-2026-63847",
"initial_release_date": "2026-07-24T02:13:49Z",
"product_status:first_fixed": "2",
"product_status:known_affected": "554",
"product_status:known_not_affected": "157",
"product_status:recommended": "250",
"source": "SUSE CSAF VEX",
"status": "interim",
"title": "SUSE CVE CVE-2026-63847",
"url": "https://ftp.suse.com/pub/projects/security/csaf-vex/cve-2026-63847.json",
"version": "9"
}
}
}
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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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