{ "dataType": "CVE_RECORD", "dataVersion": "5.2", "cveMetadata": { "cveId": "CVE-2026-93192", "assignerOrgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "state": "PUBLISHED", "assignerShortName": "Linux", "dateReserved": "2026-09-17T16:02:15.092Z", "datePublished": "2026-09-17T16:12:16.428Z", "dateUpdated": "2026-10-21T12:52:15.181Z" }, "containers": { "cna": { "providerMetadata": { "orgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "shortName": "Linux", "dateUpdated": "2026-10-21T12:52:15.181Z" }, "descriptions": [ { "lang": "en", "value": "In the Linux kernel, the following vulnerability has been resolved:\n\ndrm/v3d: Clear queue->active_job when v3d_fence_create() fails\n\nThe run_job() callbacks for BIN, RENDER, TFU and CSD assign the incoming\njob to queue->active_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->queue_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": { "version": "3.1", "vectorString": "CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H", "baseScore": 7.8, "baseSeverity": "HIGH" }, "scenarios": [ { "lang": "en", "value": "AV:L - The dangling queue->active_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->active_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's the job, v3d_overflow_mem_work still reads bin_job->render and v3d_irq_signal_fence reads active_job->irq_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(&bo->unref_head, &bin_job->render->unref_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->active_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()." } ] } ], "affected": [ { "product": "Linux", "vendor": "Linux", "defaultStatus": "unaffected", "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git", "programFiles": [ "drivers/gpu/drm/v3d/v3d_sched.c" ], "versions": [ { "version": "a783a09ee76d6259296dc6aeea2b6884fa526980", "lessThan": "1f661f42beb558b2d21882f0cd527ed6c8e7e749", "status": "affected", "versionType": "git" }, { "version": "a783a09ee76d6259296dc6aeea2b6884fa526980", "lessThan": "bdeb73d7312100e00c3e643ff233f09b6ec114aa", "status": "affected", "versionType": "git" }, { "version": "a783a09ee76d6259296dc6aeea2b6884fa526980", "lessThan": "3a8aa74859dd73eaa76c55eb74da708e56ef51c5", "status": "affected", "versionType": "git" }, { "version": "a783a09ee76d6259296dc6aeea2b6884fa526980", "lessThan": "0b9878aba5cf93bc2b55ba9eb807757ce3239bec", "status": "affected", "versionType": "git" }, { "version": "a783a09ee76d6259296dc6aeea2b6884fa526980", "lessThan": "25a1669907512e927fab9ad4d4fb74ff57f63cd9", "status": "affected", "versionType": "git" } ] }, { "product": "Linux", "vendor": "Linux", "defaultStatus": "affected", "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git", "programFiles": [ "drivers/gpu/drm/v3d/v3d_sched.c" ], "versions": [ { "version": "5.3", "status": "affected" }, { "version": "0", "lessThan": "5.3", "status": "unaffected", "versionType": "semver" }, { "version": "6.6.160", "lessThanOrEqual": "6.6.*", "status": "unaffected", "versionType": "semver" }, { "version": "6.12.110", "lessThanOrEqual": "6.12.*", "status": "unaffected", "versionType": "semver" }, { "version": "6.18.52", "lessThanOrEqual": "6.18.*", "status": "unaffected", "versionType": "semver" }, { "version": "7.2.6", "lessThanOrEqual": "7.2.*", "status": "unaffected", "versionType": "semver" }, { "version": "7.3", "lessThanOrEqual": "*", "status": "unaffected", "versionType": "original_commit_for_fix" } ] } ], "cpeApplicability": [ { "nodes": [ { "operator": "OR", "negate": false, "cpeMatch": [ { "vulnerable": true, "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "versionStartIncluding": "5.3", "versionEndExcluding": "6.6.160" }, { "vulnerable": true, "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "versionStartIncluding": "5.3", "versionEndExcluding": "6.12.110" }, { "vulnerable": true, "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "versionStartIncluding": "5.3", "versionEndExcluding": "6.18.52" }, { "vulnerable": true, "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "versionStartIncluding": "5.3", "versionEndExcluding": "7.2.6" }, { "vulnerable": true, "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "versionStartIncluding": "5.3", "versionEndExcluding": "7.3" } ] } ] } ], "references": [ { "url": "https://git.kernel.org/stable/c/1f661f42beb558b2d21882f0cd527ed6c8e7e749" }, { "url": "https://git.kernel.org/stable/c/bdeb73d7312100e00c3e643ff233f09b6ec114aa" }, { "url": "https://git.kernel.org/stable/c/3a8aa74859dd73eaa76c55eb74da708e56ef51c5" }, { "url": "https://git.kernel.org/stable/c/0b9878aba5cf93bc2b55ba9eb807757ce3239bec" }, { "url": "https://git.kernel.org/stable/c/25a1669907512e927fab9ad4d4fb74ff57f63cd9" } ], "title": "drm/v3d: Clear queue->active_job when v3d_fence_create() fails", "x_generator": { "engine": "bippy-1.2.0" } } } }