CVE-2026-93192 (GCVE-0-2026-93192)
Vulnerability from cvelistv5 – Published: 2026-09-17 16:12 – Updated: 2026-10-30 12:36
VLAI
EPSS
VEX
Title
drm/v3d: Clear queue->active_job when v3d_fence_create() fails
Summary
In the Linux kernel, the following vulnerability has been resolved:
drm/v3d: Clear queue->active_job when v3d_fence_create() fails
The run_job() callbacks for BIN, RENDER, TFU and CSD assign the incoming
job to queue->active_job before calling v3d_fence_create(). If
v3d_fence_create() fails, the callback returns NULL without clearing
active_job, leaving a dangling pointer.
Create a failure path in all run_job() callbacks that clears the active
job before returning NULL. The BIN path takes queue->queue_lock around the
clear as it races against v3d_overflow_mem_work(); RENDER, TFU and CSD
paths have no concurrent reader, so the clear is lock-free.
Severity
7.8 (High)
Assigner
References
6 references
Impacted products
2 products
| Vendor | Product | Version | CPE status | |
|---|---|---|---|---|
| Linux | Linux |
Affected:
a783a09ee76d6259296dc6aeea2b6884fa526980 , < dc0fba19ef518920073d1d639317b2dd8266fe5e
(git)
Affected: a783a09ee76d6259296dc6aeea2b6884fa526980 , < 1f661f42beb558b2d21882f0cd527ed6c8e7e749 (git) Affected: a783a09ee76d6259296dc6aeea2b6884fa526980 , < bdeb73d7312100e00c3e643ff233f09b6ec114aa (git) Affected: a783a09ee76d6259296dc6aeea2b6884fa526980 , < 3a8aa74859dd73eaa76c55eb74da708e56ef51c5 (git) Affected: a783a09ee76d6259296dc6aeea2b6884fa526980 , < 0b9878aba5cf93bc2b55ba9eb807757ce3239bec (git) Affected: a783a09ee76d6259296dc6aeea2b6884fa526980 , < 25a1669907512e927fab9ad4d4fb74ff57f63cd9 (git) |
guessed | |
| Linux | Linux |
Affected:
5.3
Unaffected: 0 , < 5.3 (semver) Unaffected: 6.1.191 , ≤ 6.1.* (semver) Unaffected: 6.6.160 , ≤ 6.6.* (semver) Unaffected: 6.12.110 , ≤ 6.12.* (semver) Unaffected: 6.18.52 , ≤ 6.18.* (semver) Unaffected: 7.2.6 , ≤ 7.2.* (semver) Unaffected: 7.3 , ≤ * (original_commit_for_fix) |
guessed |
{
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{
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{
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"version": "6.18.52",
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{
"lessThanOrEqual": "7.2.*",
"status": "unaffected",
"version": "7.2.6",
"versionType": "semver"
},
{
"lessThanOrEqual": "*",
"status": "unaffected",
"version": "7.3",
"versionType": "original_commit_for_fix"
}
]
}
],
"cpeApplicability": [
{
"nodes": [
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"cpeMatch": [
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],
"descriptions": [
{
"lang": "en",
"value": "In the Linux kernel, the following vulnerability has been resolved:\n\ndrm/v3d: Clear queue-\u003eactive_job when v3d_fence_create() fails\n\nThe run_job() callbacks for BIN, RENDER, TFU and CSD assign the incoming\njob to queue-\u003eactive_job before calling v3d_fence_create(). If\nv3d_fence_create() fails, the callback returns NULL without clearing\nactive_job, leaving a dangling pointer.\n\nCreate a failure path in all run_job() callbacks that clears the active\njob before returning NULL. The BIN path takes queue-\u003equeue_lock around the\nclear as it races against v3d_overflow_mem_work(); RENDER, TFU and CSD\npaths have no concurrent reader, so the clear is lock-free."
}
],
"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 - The dangling queue-\u003eactive_job is created in v3d_bin_job_run/v3d_render_job_run/v3d_tfu_job_run/v3d_csd_job_run after DRM_IOCTL_V3D_SUBMIT_CL (v3d_submit_cl_ioctl), DRM_IOCTL_V3D_SUBMIT_TFU, or DRM_IOCTL_V3D_SUBMIT_CSD on /dev/dri/renderD* queues a job through v3d_push_job; the trigger is that local ioctl, not a remote protocol message.\nAC:L - v3d_fence_create() fails only on kzalloc of struct v3d_fence; the attacker submits the job first so ioctl-time allocations succeed, then applies memory pressure so the scheduler worker hits GFP_KERNEL ENOMEM, and can also drive v3d_overflow_mem_work via a BCL that raises V3D_INT_OUTOMEM, controlling both the failure and the UAF consumer.\nPR:L - v3d_submit_cl_ioctl/v3d_submit_tfu_ioctl/v3d_submit_csd_ioctl are DRM_RENDER_ALLOW|DRM_AUTH with no capable() check; drm_ioctl_permit() treats render-node clients as authenticated, so an unprivileged Raspberry Pi/video-group user (or GPU-passthrough container) with /dev/dri/renderD* can reach the run_job callbacks.\nUI:N - The attacker opens the render node and issues their own SUBMIT_CL/SUBMIT_TFU/SUBMIT_CSD ioctls plus memory pressure; no other user must mount media, open a file, or otherwise interact.\nS:U - The use-after-free is of a host-kernel v3d_job left in queue-\u003eactive_job and later used by v3d_overflow_mem_work/v3d_irq_signal_fence, which is local kernel heap corruption/privilege escalation, not a KVM/Xen escape or IOMMU/DMA boundary bypass.\nC:H - After drm_sched_job_done/v3d_sched_job_free kfree\u0027s the job, v3d_overflow_mem_work still reads bin_job-\u003erender and v3d_irq_signal_fence reads active_job-\u003eirq_fence and stats from the freed slab, so heap reuse of the v3d_job yields an arbitrary kernel read.\nI:H - v3d_overflow_mem_work does list_add_tail(\u0026bo-\u003eunref_head, \u0026bin_job-\u003erender-\u003eunref_list) through the freed job, so spraying a replacement v3d_bin_job with a chosen render pointer is an arbitrary list-write; v3d_job_update_stats() likewise writes into the freed object.\nA:H - Dereferencing the dangling queue-\u003eactive_job in v3d_irq_signal_fence (IRQ context) or v3d_overflow_mem_work after v3d_job_free() oopses or panics the kernel, matching other v3d active-job UAFs that produced fatal exceptions in v3d_irq()."
}
]
}
],
"providerMetadata": {
"dateUpdated": "2026-10-30T12:36:19.527Z",
"orgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
"shortName": "Linux"
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"references": [
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"url": "https://git.kernel.org/stable/c/dc0fba19ef518920073d1d639317b2dd8266fe5e"
},
{
"url": "https://git.kernel.org/stable/c/1f661f42beb558b2d21882f0cd527ed6c8e7e749"
},
{
"url": "https://git.kernel.org/stable/c/bdeb73d7312100e00c3e643ff233f09b6ec114aa"
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},
{
"url": "https://git.kernel.org/stable/c/25a1669907512e927fab9ad4d4fb74ff57f63cd9"
}
],
"title": "drm/v3d: Clear queue-\u003eactive_job when v3d_fence_create() fails",
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"cveId": "CVE-2026-93192",
"datePublished": "2026-09-17T16:12:16.428Z",
"dateReserved": "2026-09-17T16:02:15.092Z",
"dateUpdated": "2026-10-30T12:36:19.527Z",
"state": "PUBLISHED"
},
"dataType": "CVE_RECORD",
"dataVersion": "5.2",
"vulnerability-lookup:meta": {
"epss": {
"cve": "CVE-2026-93192",
"date": "2026-11-09",
"epss": "0.00176",
"percentile": "0.07118"
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"product_status:fixed": "1",
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"source": "Microsoft CSAF VEX",
"status": "final",
"title": "drm/v3d: Clear queue-\u003eactive_job when v3d_fence_create() fails",
"url": "https://msrc.microsoft.com/csaf/vex/2026/msrc_cve-2026-93192.json",
"version": "8"
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"cveTags": [],
"descriptions": [
{
"lang": "en",
"value": "In the Linux kernel, the following vulnerability has been resolved:\n\ndrm/v3d: Clear queue-\u003eactive_job when v3d_fence_create() fails\n\nThe run_job() callbacks for BIN, RENDER, TFU and CSD assign the incoming\njob to queue-\u003eactive_job before calling v3d_fence_create(). If\nv3d_fence_create() fails, the callback returns NULL without clearing\nactive_job, leaving a dangling pointer.\n\nCreate a failure path in all run_job() callbacks that clears the active\njob before returning NULL. The BIN path takes queue-\u003equeue_lock around the\nclear as it races against v3d_overflow_mem_work(); RENDER, TFU and CSD\npaths have no concurrent reader, so the clear is lock-free."
}
],
"id": "CVE-2026-93192",
"lastModified": "2026-10-30T13:20:59.663",
"metrics": {
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{
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"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": "2026-09-17T17:18:15.447",
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},
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"url": "https://git.kernel.org/stable/c/1f661f42beb558b2d21882f0cd527ed6c8e7e749"
},
{
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},
{
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"url": "https://git.kernel.org/stable/c/dc0fba19ef518920073d1d639317b2dd8266fe5e"
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],
"sourceIdentifier": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
"vulnStatus": "Received"
}
},
"redhat_vex": {
"aggregate_severity": "Moderate",
"current_release_date": "2026-11-06T02:05:04+00:00",
"cve": "CVE-2026-93192",
"id": "CVE-2026-93192",
"initial_release_date": "2026-09-17T00:00:00+00:00",
"product_status:known_not_affected": "203",
"source": "Red Hat CSAF VEX",
"status": "final",
"title": "kernel: drm/v3d: Clear queue-\u003eactive_job when v3d_fence_create() fails",
"url": "https://security.access.redhat.com/data/csaf/v2/vex/2026/cve-2026-93192.json",
"version": "3"
}
}
}
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vulnerability by the CIRCL/vulnerability-attack-technique-classification-roberta-base
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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.