CVE-2025-40111 (GCVE-0-2025-40111)
Vulnerability from cvelistv5 – Published: 2025-11-12 01:07 – Updated: 2026-10-15 22:02
VLAI
EPSS
VEX
Title
drm/vmwgfx: Fix Use-after-free in validation
Summary
In the Linux kernel, the following vulnerability has been resolved:
drm/vmwgfx: Fix Use-after-free in validation
Nodes stored in the validation duplicates hashtable come from an arena
allocator that is cleared at the end of vmw_execbuf_process. All nodes
are expected to be cleared in vmw_validation_drop_ht but this node escaped
because its resource was destroyed prematurely.
Severity
7.8 (High)
SSVC
Exploitation: none
Automatable: no
Technical Impact: total
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2026-10-15 21:57 UTC
Assigner
References
8 references
Impacted products
2 products
| Vendor | Product | Version | CPE status | |
|---|---|---|---|---|
| Linux | Linux |
Affected:
64ad2abfe9a628ce79859d072704bd1ef7682044 , < 1822e5287b7dfa59d0af966756ebf1dc652b60ee
(git)
Affected: 64ad2abfe9a628ce79859d072704bd1ef7682044 , < fb7165e5f3b3b10721ff70553583ad12e90e447a (git) Affected: 64ad2abfe9a628ce79859d072704bd1ef7682044 , < 4c918f9d1ccccc0e092f43dcb2d8266f54d7340b (git) Affected: 64ad2abfe9a628ce79859d072704bd1ef7682044 , < 9a8eaca539708ca532747f606d231f70e684e8ca (git) Affected: 64ad2abfe9a628ce79859d072704bd1ef7682044 , < 867bda5d95d36f10da398fd4409e21c7002b2332 (git) Affected: 64ad2abfe9a628ce79859d072704bd1ef7682044 , < 655a2f29bfc21105c80bf8a7d7aafa6eca8b4496 (git) Affected: 64ad2abfe9a628ce79859d072704bd1ef7682044 , < 65608e991c2d771c13404e5c7ae122ac3c3357a4 (git) Affected: 64ad2abfe9a628ce79859d072704bd1ef7682044 , < dfe1323ab3c8a4dd5625ebfdba44dc47df84512a (git) |
guessed | |
| Linux | Linux |
Affected:
4.20
Unaffected: 0 , < 4.20 (semver) Unaffected: 5.4.301 , ≤ 5.4.* (semver) Unaffected: 5.10.246 , ≤ 5.10.* (semver) Unaffected: 5.15.195 , ≤ 5.15.* (semver) Unaffected: 6.1.157 , ≤ 6.1.* (semver) Unaffected: 6.6.113 , ≤ 6.6.* (semver) Unaffected: 6.12.54 , ≤ 6.12.* (semver) Unaffected: 6.17.4 , ≤ 6.17.* (semver) Unaffected: 6.18 , ≤ * (original_commit_for_fix) |
guessed |
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}
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"product_status:known_affected": "110",
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"source": "Red Hat CSAF VEX",
"status": "final",
"title": "kernel: drm/vmwgfx: Fix Use-after-free in validation",
"url": "https://security.access.redhat.com/data/csaf/v2/vex/2025/cve-2025-40111.json",
"version": "3"
},
"vulnrichment": {
"containers": {
"adp": [
{
"metrics": [
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"other": {
"content": {
"id": "CVE-2025-40111",
"options": [
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},
{
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},
{
"Technical Impact": "total"
}
],
"role": "CISA Coordinator",
"timestamp": "2026-10-15T21:57:01.164715Z",
"version": "2.0.3"
},
"type": "ssvc"
}
}
],
"providerMetadata": {
"dateUpdated": "2026-10-15T21:57:02.742Z",
"orgId": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
"shortName": "CISA-ADP"
},
"title": "CISA ADP Vulnrichment"
}
],
"cna": {
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{
"defaultStatus": "unaffected",
"product": "Linux",
"programFiles": [
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],
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"versions": [
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{
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"status": "unaffected",
"version": "5.10.246",
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"status": "unaffected",
"version": "5.15.195",
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{
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"status": "unaffected",
"version": "6.1.157",
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{
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"version": "6.6.113",
"versionType": "semver"
},
{
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"status": "unaffected",
"version": "6.12.54",
"versionType": "semver"
},
{
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"status": "unaffected",
"version": "6.17.4",
"versionType": "semver"
},
{
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"status": "unaffected",
"version": "6.18",
"versionType": "original_commit_for_fix"
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}
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"cpeApplicability": [
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"value": "In the Linux kernel, the following vulnerability has been resolved:\n\ndrm/vmwgfx: Fix Use-after-free in validation\n\nNodes stored in the validation duplicates hashtable come from an arena\nallocator that is cleared at the end of vmw_execbuf_process. All nodes\nare expected to be cleared in vmw_validation_drop_ht but this node escaped\nbecause its resource was destroyed prematurely."
}
],
"metrics": [
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"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"
},
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"lang": "en",
"value": "AV:L - The vulnerability is reached only through `DRM_IOCTL_VMW_EXECBUF` on the vmwgfx DRM device node, which requires local execution to issue ioctls. There is no network or adjacent-network path into the command-submission validation code.\nAC:L - The attacker controls both sides of the race \u2014 one thread loops `vmw_execbuf_ioctl()` over a DX context with bound resources while another destroys a bound view/shader/surface \u2014 and the window is widened because `vmw_resource_release()` drops the kref and then blocks on `binding_mutex` that the execbuf walker already holds. The attempt is infinitely repeatable, and a single success permanently poisons the device-global `res_ht`.\nPR:L - `DRM_IOCTL_VMW_EXECBUF` is marked `DRM_RENDER_ALLOW`, so any unprivileged local user holding an fd on `/dev/dri/renderD*` (the default for logged-in desktop users, GPU-enabled containers, and sandboxed GPU processes in VMware guests) can reach it. No capability, DRM master status, or authentication is needed.\nUI:N - The attacking process drives both the execbuf submission and the concurrent resource destruction entirely on its own via ioctls. No action by another user or administrator is required.\nS:U - The corruption is confined to the guest kernel\u0027s own memory within the same security authority; no hypervisor, IOMMU, or VM boundary is crossed even though vmwgfx is a paravirtual GPU driver.\nC:H - The stale hlist entry points into a page freed to the buddy allocator, so subsequent `hash_for_each_possible_rcu()` walks read attacker-groomed memory; a matching sprayed `hash-\u003ekey` yields a fully fabricated `vmw_validation_res_node` whose `private` data is consumed as `struct vmw_ctx_validation_info` pointers, enabling arbitrary kernel memory disclosure.\nI:H - `hash_add_rcu()` writes a kernel pointer into the freed page through the dangling node\u0027s `pprev`, and a sprayed fake node supplies attacker-controlled `res`, `ctx`, and binding-state pointers that the binding/validation code dereferences and writes through \u2014 a use-after-free with both write and control-flow-hijack primitives.\nA:H - The dangling hash entry survives in the device-global `res_ht` and is traversed by every later execbuf from any process on that device, so a single trigger reliably produces list corruption and oopses/panics affecting the whole system."
}
]
}
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"cveId": "CVE-2025-40111",
"datePublished": "2025-11-12T01:07:25.203Z",
"dateReserved": "2025-04-16T07:20:57.167Z",
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}
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Drag nodes to arrange them. Double-click a related vulnerability to open it, or a source to visit its link. The Physics button on the left tunes the layout and the simulation; the legend at the bottom left hides or shows nodes by kind and by sighting type.
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.
Vulnerability timeline
Sightings and recorded dates, grouped by day · UTC
How durations are calculated
Following the VTEM framework (Black Hat USA 2015), time to patch starts when the vendor or a coordinator was informed, total time to patch at discovery, and disclosure to patch at public disclosure; vendor response time runs from the report to its acknowledgement. Time to exploit and time unpatched start at the earliest discovery or report, falling back to public disclosure. Unpatched time ends at the first recorded patch, or the calculation time when no patch is recorded. Exploitation to patch shows the interval between those two events; a published proof of concept is a public exploit, not exploitation.
Each result shows its source dates. A negative interval means the end event came first; when date-only inputs leave the order open, the result says so. Date-only inputs are approximate. The earliest evidence wins: KEV report dates and sightings are labelled as such. Records describing another vulnerability are listed but never calculated from, and a PoC alone does not establish exploitation. Missing patch evidence does not prove that no patch exists. Filters below change the event list only.
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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.