298 lines
16 KiB
JSON
298 lines
16 KiB
JSON
{
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"dataType": "CVE_RECORD",
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"dataVersion": "5.2",
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"cveMetadata": {
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"cveId": "CVE-2025-40111",
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"assignerOrgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
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"state": "PUBLISHED",
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"assignerShortName": "Linux",
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"dateReserved": "2025-04-16T07:20:57.167Z",
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"datePublished": "2025-11-12T01:07:25.203Z",
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"dateUpdated": "2026-10-15T22:02:38.116Z"
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},
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"containers": {
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"cna": {
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"providerMetadata": {
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"orgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
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"shortName": "Linux",
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"dateUpdated": "2026-08-05T12:07:51.842Z"
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},
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"descriptions": [
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{
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"lang": "en",
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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."
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}
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],
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"metrics": [
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{
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"cvssV3_1": {
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"version": "3.1",
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"vectorString": "CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H",
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"baseScore": 7.8,
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"baseSeverity": "HIGH"
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},
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"scenarios": [
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{
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"lang": "en",
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"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 — one thread loops `vmw_execbuf_ioctl()` over a DX context with bound resources while another destroys a bound view/shader/surface — 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's 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->key` 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's `pprev`, and a sprayed fake node supplies attacker-controlled `res`, `ctx`, and binding-state pointers that the binding/validation code dereferences and writes through — 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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}
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]
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}
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],
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"affected": [
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{
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"product": "Linux",
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"vendor": "Linux",
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"defaultStatus": "unaffected",
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"repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
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"programFiles": [
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"drivers/gpu/drm/vmwgfx/vmwgfx_validation.c"
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],
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"versions": [
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{
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"version": "64ad2abfe9a628ce79859d072704bd1ef7682044",
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"lessThan": "1822e5287b7dfa59d0af966756ebf1dc652b60ee",
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"status": "affected",
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"versionType": "git"
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},
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{
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"version": "64ad2abfe9a628ce79859d072704bd1ef7682044",
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"lessThan": "fb7165e5f3b3b10721ff70553583ad12e90e447a",
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"status": "affected",
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"versionType": "git"
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},
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{
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"status": "affected",
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{
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"lessThan": "9a8eaca539708ca532747f606d231f70e684e8ca",
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"status": "affected",
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"versionType": "git"
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},
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{
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"version": "64ad2abfe9a628ce79859d072704bd1ef7682044",
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"lessThan": "867bda5d95d36f10da398fd4409e21c7002b2332",
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"status": "affected",
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"versionType": "git"
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},
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{
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"version": "64ad2abfe9a628ce79859d072704bd1ef7682044",
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"lessThan": "655a2f29bfc21105c80bf8a7d7aafa6eca8b4496",
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"status": "affected",
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"versionType": "git"
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},
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{
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"version": "64ad2abfe9a628ce79859d072704bd1ef7682044",
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"lessThan": "65608e991c2d771c13404e5c7ae122ac3c3357a4",
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"status": "affected",
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"versionType": "git"
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},
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{
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"version": "64ad2abfe9a628ce79859d072704bd1ef7682044",
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"lessThan": "dfe1323ab3c8a4dd5625ebfdba44dc47df84512a",
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"status": "affected",
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"versionType": "git"
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}
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]
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},
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{
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"product": "Linux",
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"vendor": "Linux",
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"defaultStatus": "affected",
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"repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
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"programFiles": [
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"drivers/gpu/drm/vmwgfx/vmwgfx_validation.c"
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],
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"versions": [
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{
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"version": "4.20",
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"status": "affected"
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},
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{
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"version": "0",
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"lessThan": "4.20",
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"status": "unaffected",
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"versionType": "semver"
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},
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{
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"version": "5.4.301",
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"lessThanOrEqual": "5.4.*",
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"status": "unaffected",
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"versionType": "semver"
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},
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{
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"version": "5.10.246",
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"lessThanOrEqual": "5.10.*",
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"status": "unaffected",
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"versionType": "semver"
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},
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{
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"version": "5.15.195",
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"lessThanOrEqual": "5.15.*",
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"status": "unaffected",
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"versionType": "semver"
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},
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{
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"version": "6.1.157",
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"lessThanOrEqual": "6.1.*",
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"status": "unaffected",
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"versionType": "semver"
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},
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{
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"version": "6.6.113",
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"lessThanOrEqual": "6.6.*",
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"status": "unaffected",
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"versionType": "semver"
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},
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{
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"version": "6.12.54",
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"lessThanOrEqual": "6.12.*",
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"status": "unaffected",
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"versionType": "semver"
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},
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{
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"version": "6.17.4",
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"lessThanOrEqual": "6.17.*",
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"status": "unaffected",
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"versionType": "semver"
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},
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{
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"version": "6.18",
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"lessThanOrEqual": "*",
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"status": "unaffected",
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"versionType": "original_commit_for_fix"
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}
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]
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}
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],
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"cpeApplicability": [
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{
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"nodes": [
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{
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"operator": "OR",
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"negate": false,
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"cpeMatch": [
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"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
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"versionStartIncluding": "4.20",
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"references": [
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{
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"url": "https://git.kernel.org/stable/c/1822e5287b7dfa59d0af966756ebf1dc652b60ee"
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},
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{
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"url": "https://git.kernel.org/stable/c/fb7165e5f3b3b10721ff70553583ad12e90e447a"
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},
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{
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"url": "https://git.kernel.org/stable/c/4c918f9d1ccccc0e092f43dcb2d8266f54d7340b"
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},
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{
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"url": "https://git.kernel.org/stable/c/9a8eaca539708ca532747f606d231f70e684e8ca"
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},
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{
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"url": "https://git.kernel.org/stable/c/867bda5d95d36f10da398fd4409e21c7002b2332"
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},
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{
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"url": "https://git.kernel.org/stable/c/655a2f29bfc21105c80bf8a7d7aafa6eca8b4496"
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},
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{
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"url": "https://git.kernel.org/stable/c/65608e991c2d771c13404e5c7ae122ac3c3357a4"
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},
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{
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"url": "https://git.kernel.org/stable/c/dfe1323ab3c8a4dd5625ebfdba44dc47df84512a"
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}
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],
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"title": "drm/vmwgfx: Fix Use-after-free in validation",
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"x_generator": {
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"engine": "bippy-1.2.0"
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}
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},
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"adp": [
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{
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"metrics": [
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{
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"other": {
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"type": "ssvc",
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"content": {
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"id": "CVE-2025-40111",
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"role": "CISA Coordinator",
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"options": [
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{
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"Exploitation": "none"
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},
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{
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"Automatable": "no"
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},
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{
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"Technical Impact": "total"
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}
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],
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"version": "2.0.3",
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"timestamp": "2026-10-15T21:57:01.164715Z"
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}
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}
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}
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],
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"title": "CISA ADP Vulnrichment",
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"providerMetadata": {
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"orgId": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
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"shortName": "CISA-ADP",
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"dateUpdated": "2026-10-15T22:02:38.116Z"
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}
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}
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]
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}
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} |