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-2026-80870",
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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": "2026-08-26T14:34:25.798Z",
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"datePublished": "2026-09-04T16:48:31.902Z",
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"dateUpdated": "2026-09-04T16:48:31.902Z"
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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": "2026-09-04T16:48:31.902Z"
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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: Validate CRIU-restored IDs before idr_alloc\n\nThe KFD CRIU restore flow restores previously saved object IDs from\nuserspace.\n\nFor event restore:\n\n kfd_criu_restore_event()\n -> create_signal_event() / create_other_event()\n -> allocate_event_notification_slot()\n -> idr_alloc(..., *restore_id, *restore_id + 1, ...)\n\nFor BO restore:\n\n criu_restore_memory_of_gpu()\n -> idr_alloc(..., bo_priv->idr_handle, ...)\n\nIn both cases, the restored ID comes from userspace-provided CRIU data.\n\nidr_alloc() expects the ID range values to fit within signed int\nlimits. If a restored ID is larger than INT_MAX, it can trigger a WARN\nin the IDR layer.\n\nA kernel WARN is undesirable because it prints a warning trace and may\ncause a panic or reboot on systems with panic_on_warn enabled.\n\nSmatch reported these paths as allowing unchecked userspace values to\nreach idr_alloc().\n\nAdd INT_MAX validation before using restored IDs in:\n\n- kfd_criu_restore_event()\n- criu_restore_memory_of_gpu()\n\nIf the restored ID is invalid, return -EINVAL.\n\nThis prevents invalid restore data from reaching the IDR layer and\navoids WARN-triggering paths, while keeping valid restore behavior\nunchanged."
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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/amdkfd/kfd_chardev.c",
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"drivers/gpu/drm/amd/amdkfd/kfd_events.c"
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],
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"versions": [
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{
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"version": "40e8a766a761f7fdc8530347527b344fddf6f1a8",
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"lessThan": "f8687018f24037056692c1e93c7d96cc72889d5b",
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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": "40e8a766a761f7fdc8530347527b344fddf6f1a8",
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"lessThan": "89a75e3349c4fae28cbedc711bc924cbc6293da2",
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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": "40e8a766a761f7fdc8530347527b344fddf6f1a8",
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"lessThan": "085ea93bda71fee600cc12a17026598eb10dd1f9",
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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": "40e8a766a761f7fdc8530347527b344fddf6f1a8",
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"lessThan": "543ed0f61d56501cc585162da600bbedd7c08c0f",
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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": "40e8a766a761f7fdc8530347527b344fddf6f1a8",
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"lessThan": "cb6311f25a096621ac7ffd91b50d1bb1cfb63a96",
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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": "40e8a766a761f7fdc8530347527b344fddf6f1a8",
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"lessThan": "85043dd49c2f51a37b22618168e3ae59ab92f0d6",
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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/amdkfd/kfd_chardev.c",
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"drivers/gpu/drm/amd/amdkfd/kfd_events.c"
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],
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"versions": [
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{
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"version": "5.18",
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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": "5.18",
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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": "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": "5.18",
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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": "5.18",
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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": "5.18",
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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": "5.18",
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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": "5.18",
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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": "5.18",
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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/f8687018f24037056692c1e93c7d96cc72889d5b"
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},
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{
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"url": "https://git.kernel.org/stable/c/89a75e3349c4fae28cbedc711bc924cbc6293da2"
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},
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{
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"url": "https://git.kernel.org/stable/c/085ea93bda71fee600cc12a17026598eb10dd1f9"
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},
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{
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"url": "https://git.kernel.org/stable/c/543ed0f61d56501cc585162da600bbedd7c08c0f"
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},
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{
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"url": "https://git.kernel.org/stable/c/cb6311f25a096621ac7ffd91b50d1bb1cfb63a96"
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},
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{
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"url": "https://git.kernel.org/stable/c/85043dd49c2f51a37b22618168e3ae59ab92f0d6"
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}
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],
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"title": "drm/amdkfd: Validate CRIU-restored IDs before idr_alloc",
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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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} |