206 lines
10 KiB
JSON
206 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-2026-80618",
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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": "2026-08-26T14:34:25.774Z",
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"datePublished": "2026-08-28T06:48:38.112Z",
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"dateUpdated": "2026-08-28T06:48:38.112Z"
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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": "2026-08-28T06:48:38.112Z"
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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/amdkfd: Avoid double-unpin of DOORBELL/MMIO BOs on free\n\namdgpu_amdkfd_gpuvm_free_memory_of_gpu() unpinned DOORBELL and MMIO\nremap BOs (which are pinned at allocation time) before checking whether\nthe BO is still mapped to the GPU. When the BO is still mapped, the\nfunction returns -EBUSY and leaves the BO alive, but it has already\nbeen unpinned. The BO is then unpinned again when it is finally freed\nduring process teardown, triggering a ttm_bo_unpin() underflow warning:\n\n WARNING: CPU: 18 PID: 15066 at ttm/ttm_bo.c:650 amdttm_bo_unpin+0x6d/0x80 [amdttm]\n Workqueue: kfd_process_wq kfd_process_wq_release [amdgpu]\n RIP: 0010:amdttm_bo_unpin+0x6d/0x80 [amdttm]\n Call Trace:\n amdgpu_bo_unpin+0x1a/0x90 [amdgpu]\n amdgpu_amdkfd_gpuvm_unpin_bo+0x31/0xb0 [amdgpu]\n amdgpu_amdkfd_gpuvm_free_memory_of_gpu+0x3bf/0x460 [amdgpu]\n kfd_process_free_outstanding_kfd_bos+0xd4/0x170 [amdgpu]\n kfd_process_wq_release+0x109/0x1b0 [amdgpu]\n process_one_work+0x1e2/0x3b0\n worker_thread+0x50/0x3a0\n kthread+0xdd/0x100\n ret_from_fork+0x29/0x50\n\nMove the unpin after the mapped_to_gpu_memory check so it only happens\nonce we are committed to freeing the BO.\n\n(cherry picked from commit 927c5b2defb9b09856444d94bebfd056a002bd75)"
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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_amdkfd_gpuvm.c"
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],
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"versions": [
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{
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"version": "d25e35bc26c3ca8cd728101545cfb3e86a5d7431",
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"lessThan": "461ae406ae12107ebb321cabe561434c27aaea58",
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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": "d25e35bc26c3ca8cd728101545cfb3e86a5d7431",
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"lessThan": "283e77af49fda96aaa57709fc5408b55ffec075e",
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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": "d25e35bc26c3ca8cd728101545cfb3e86a5d7431",
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"lessThan": "c055a2088b719e9a4b580685e0ca97f9554a41a8",
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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": "d25e35bc26c3ca8cd728101545cfb3e86a5d7431",
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"lessThan": "0e27d92f69b8e4c750a4b181cc05a86b9338c4f5",
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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": "d25e35bc26c3ca8cd728101545cfb3e86a5d7431",
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"lessThan": "1d12ae8b079e173107abec0e5817332954c8e95f",
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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": "d25e35bc26c3ca8cd728101545cfb3e86a5d7431",
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"lessThan": "3f0cc1735273a57c5116710cf0202e12152f59cc",
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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_amdkfd_gpuvm.c"
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],
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"versions": [
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{
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"version": "5.17",
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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": "5.17",
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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": "6.1.178",
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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": "6.6.145",
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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": "6.12.97",
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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": "6.18.40",
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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": "7.1.5",
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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": "5.17",
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"versionEndExcluding": "6.1.178"
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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": "5.17",
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"versionEndExcluding": "6.6.145"
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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": "5.17",
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"versionEndExcluding": "6.12.97"
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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": "5.17",
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"versionEndExcluding": "6.18.40"
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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": "5.17",
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"versionEndExcluding": "7.1.5"
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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": "5.17",
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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/461ae406ae12107ebb321cabe561434c27aaea58"
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},
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{
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"url": "https://git.kernel.org/stable/c/283e77af49fda96aaa57709fc5408b55ffec075e"
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},
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{
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"url": "https://git.kernel.org/stable/c/c055a2088b719e9a4b580685e0ca97f9554a41a8"
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},
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{
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"url": "https://git.kernel.org/stable/c/0e27d92f69b8e4c750a4b181cc05a86b9338c4f5"
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},
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{
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"url": "https://git.kernel.org/stable/c/1d12ae8b079e173107abec0e5817332954c8e95f"
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},
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{
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"url": "https://git.kernel.org/stable/c/3f0cc1735273a57c5116710cf0202e12152f59cc"
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}
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],
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"title": "drm/amdkfd: Avoid double-unpin of DOORBELL/MMIO BOs on free",
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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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}
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} |