208 lines
10 KiB
JSON
208 lines
10 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-2026-68102",
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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": "2026-08-10T11:58:18.093Z",
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"dateUpdated": "2026-10-30T12:28:04.267Z"
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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": "2026-10-30T12:28:04.267Z"
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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: fix aperture mapping leak\n\namdgpu_pci_remove() calls drm_dev_unplug() before invoking the driver\nfini routines. This causes drm_dev_enter() in amdgpu_ttm_fini() to\nalways return false, so iounmap(aper_base_kaddr) never runs on normal\ndriver unload, leaving an orphaned entry in the x86 PAT interval tree.\n\nOn connected_to_cpu hardware, the aperture is mapped write-back (WB) via\nioremap_cache(). On reload, IP discovery calls memremap(..., MEMREMAP_WC)\nover the same range. The WC vs WB conflict causes:\n\n ioremap error for 0x..., requested 0x1, got 0x0\n amdgpu: discovery failed: -2\n\nFix by switching to devres-managed mappings so cleanup is guaranteed\nregardless of drm_dev_enter() state:\n\n- connected_to_cpu path: devm_memremap(MEMREMAP_WB). For\n IORESOURCE_SYSTEM_RAM ranges this takes the try_ram_remap() shortcut,\n returning __va(offset) from the existing kernel direct map. No new\n ioremap VA or PAT entry is created, so there is nothing to orphan.\n\n- dGPU path: devm_ioremap_wc() registers iounmap() as a devres action,\n guaranteeing cleanup at device_del() time.\n\nAlso remove iounmap(aper_base_kaddr) from amdgpu_device_unmap_mmio()\nsince the mapping is now devres-owned.\n\nv2: Remove redundant x86_64 guard (Lijo)\n\n(cherry picked from commit d871e99879cb5fd1fa798b006b4888887e63a17a)"
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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_device.c",
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"drivers/gpu/drm/amd/amdgpu/amdgpu_ttm.c"
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],
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"versions": [
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{
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"version": "9d0af8b4def0de6b734ec8db08e96da0458facb6",
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"lessThan": "8cf4724ea4f23c438af87a6cd0582a3372d30da9",
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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": "9d0af8b4def0de6b734ec8db08e96da0458facb6",
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"lessThan": "67bc3647e418e23dc0d17604bdba634a73de809f",
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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": "9d0af8b4def0de6b734ec8db08e96da0458facb6",
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"lessThan": "a343d028ad6c174da8dc6af560c51e6d140a6727",
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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": "9d0af8b4def0de6b734ec8db08e96da0458facb6",
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"lessThan": "6405c4e75b3bcf0e72bd7a0ff5f1ed0c475e23aa",
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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": "9d0af8b4def0de6b734ec8db08e96da0458facb6",
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"lessThan": "f5988b5c300a32ff751724ffd33d5a8d5873e4a7",
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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": "9d0af8b4def0de6b734ec8db08e96da0458facb6",
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"lessThan": "ea772a440d56b285f4d491affac50ecd41f6b402",
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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_device.c",
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"drivers/gpu/drm/amd/amdgpu/amdgpu_ttm.c"
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],
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"versions": [
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{
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"version": "5.13",
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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": "5.13",
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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": "6.1.191",
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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": "5.13",
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"versionEndExcluding": "6.1.191"
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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": "5.13",
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"versionEndExcluding": "6.6.148"
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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": "5.13",
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"versionEndExcluding": "6.12.101"
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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": "5.13",
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"versionEndExcluding": "6.18.42"
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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": "5.13",
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"versionEndExcluding": "7.1.6"
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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": "5.13",
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"versionEndExcluding": "7.2"
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}
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]
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}
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]
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}
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],
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"references": [
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{
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"url": "https://git.kernel.org/stable/c/8cf4724ea4f23c438af87a6cd0582a3372d30da9"
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},
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{
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"url": "https://git.kernel.org/stable/c/67bc3647e418e23dc0d17604bdba634a73de809f"
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},
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{
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"url": "https://git.kernel.org/stable/c/a343d028ad6c174da8dc6af560c51e6d140a6727"
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},
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{
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"url": "https://git.kernel.org/stable/c/6405c4e75b3bcf0e72bd7a0ff5f1ed0c475e23aa"
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},
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{
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"url": "https://git.kernel.org/stable/c/f5988b5c300a32ff751724ffd33d5a8d5873e4a7"
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},
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{
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"url": "https://git.kernel.org/stable/c/ea772a440d56b285f4d491affac50ecd41f6b402"
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}
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],
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"title": "drm/amdgpu: fix aperture mapping leak",
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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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} |