310 lines
16 KiB
JSON
310 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-2026-68104",
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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": "2026-07-30T09:28:09.368Z",
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"datePublished": "2026-08-10T11:58:20.614Z",
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"dateUpdated": "2026-10-19T20:58:50.663Z"
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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": "2026-08-19T16:29:17.502Z"
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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/amdgpu: invoke pm_genpd_remove() before freeing genpd\n\nCall pm_genpd_remove() to unregister from global list prior to releasing\nacp_genpd memory, and clear the pointer after free.\n\n(cherry picked from commit cd8650d7a91ee8b768e202354672553faa5cc1f2)"
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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 bug is in acp_hw_fini during amdgpu driver teardown (amdgpu_pci_remove/amdgpu_driver_unload_kms), reachable via local PCI unbind/module unload or a failed amdgpu init cleanup after opening a DRM render node; there is no network-facing entry point.\nAC:L - Once the AMDGPU ACP block has been initialized, calling acp_hw_fini deterministically frees acp_genpd without unregistering it from the global genpd list; no race or special memory layout is required to leave a dangling list entry.\nPR:L - Unprivileged users with access to /dev/dri/renderD* can autoload amdgpu and trigger the fini path if initialization fails after ACP setup; the same bug also fires on privileged driver unload/hot-unplug teardown of AMDGPU on ACP-capable APUs (Carrizo/Stoney).\nUI:N - Exploitation does not require any victim interaction such as clicking links or mounting filesystems; triggering driver teardown or a failed init cleanup is sufficient once the attacker can open the DRM device or unload the driver.\nS:U - The use-after-free corrupts kernel heap metadata/objects in the same kernel security domain during AMDGPU/ACP teardown; it does not by itself cross VM, container, or IOMMU boundaries to impact a separate authority.\nC:H - Freeing the generic_pm_domain while it remains linked on the global gpd_list is a kernel use-after-free; subsequent genpd list walks can read attacker-influenced freed memory, enabling information disclosure and kernel pointer leaks.\nI:H - The dangling genpd entry allows the power-domain core to perform reads/writes through a freed acp_pm_domain/generic_pm_domain object, providing a standard heap UAF primitive that can be developed into arbitrary kernel memory corruption or code execution.\nA:H - Dereferencing the freed genpd from the global list during later power-management operations can cause kernel oops/panic or hang, and the UAF can be leveraged for a reliable denial-of-service even when full exploitation is not attempted."
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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/amd/amdgpu/amdgpu_acp.c"
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],
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"versions": [
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{
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"version": "25030321ba2860c56651429a4f28d94a6483d952",
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"lessThan": "4d7c10b0bf09d90c81818752decbdb1966b62702",
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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": "25030321ba2860c56651429a4f28d94a6483d952",
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"lessThan": "493adf29d66f23888f0e29888b6bc9512acd0825",
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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": "25030321ba2860c56651429a4f28d94a6483d952",
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"lessThan": "2e406b86144c1f732eb344f1f1e09043856cfc33",
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"status": "affected",
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{
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"lessThan": "bdfc7f1e0900ef1361b828c4f69b72701f8a0a86",
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"status": "affected",
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},
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{
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"version": "25030321ba2860c56651429a4f28d94a6483d952",
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"lessThan": "5c0a82283271759fff445ac27182072f200a888c",
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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": "25030321ba2860c56651429a4f28d94a6483d952",
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"lessThan": "08fee493e0261f9e4120a5c8e7e42e8a723574e8",
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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": "25030321ba2860c56651429a4f28d94a6483d952",
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"lessThan": "930a5dc3df4aa5e10393134bd5313d616dbebaf6",
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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": "25030321ba2860c56651429a4f28d94a6483d952",
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"lessThan": "28c9b3c5dc35cc790d11e26ca3fc6e068be63998",
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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/amd/amdgpu/amdgpu_acp.c"
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],
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"versions": [
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{
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"version": "4.6",
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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": "4.6",
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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": "5.10.265",
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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": "5.15.216",
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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": "6.1.183",
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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": "6.6.148",
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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": "6.12.101",
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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": "6.18.42",
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"lessThanOrEqual": "6.18.*",
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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": "7.1.6",
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"lessThanOrEqual": "7.1.*",
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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": "7.2",
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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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{
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"vulnerable": true,
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"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
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"versionStartIncluding": "4.6",
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"versionEndExcluding": "5.10.265"
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},
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{
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"vulnerable": true,
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"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
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"versionStartIncluding": "4.6",
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"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
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"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
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"versionStartIncluding": "4.6",
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],
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"references": [
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{
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"url": "https://git.kernel.org/stable/c/4d7c10b0bf09d90c81818752decbdb1966b62702"
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},
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{
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"url": "https://git.kernel.org/stable/c/493adf29d66f23888f0e29888b6bc9512acd0825"
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},
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{
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"url": "https://git.kernel.org/stable/c/2e406b86144c1f732eb344f1f1e09043856cfc33"
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},
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{
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"url": "https://git.kernel.org/stable/c/bdfc7f1e0900ef1361b828c4f69b72701f8a0a86"
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},
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{
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"url": "https://git.kernel.org/stable/c/5c0a82283271759fff445ac27182072f200a888c"
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},
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{
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"url": "https://git.kernel.org/stable/c/08fee493e0261f9e4120a5c8e7e42e8a723574e8"
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},
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{
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"url": "https://git.kernel.org/stable/c/930a5dc3df4aa5e10393134bd5313d616dbebaf6"
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},
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{
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"url": "https://git.kernel.org/stable/c/28c9b3c5dc35cc790d11e26ca3fc6e068be63998"
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}
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],
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"title": "drm/amdgpu: invoke pm_genpd_remove() before freeing genpd",
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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-2026-68104",
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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": "2026-10-16T15:43:52.011582Z"
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}
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}
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}
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],
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"problemTypes": [
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{
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"descriptions": [
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{
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"lang": "en",
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"type": "CWE",
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"cweId": "CWE-416",
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"description": "CWE-416 Use After Free"
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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": "2026-10-19T20:58:50.663Z"
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}
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}
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]
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}
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} |