{ "dataType": "CVE_RECORD", "dataVersion": "5.2", "cveMetadata": { "cveId": "CVE-2023-52678", "assignerOrgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "state": "PUBLISHED", "assignerShortName": "Linux", "dateReserved": "2024-03-07T14:49:46.887Z", "datePublished": "2024-05-17T14:24:42.715Z", "dateUpdated": "2026-08-05T09:10:59.732Z" }, "containers": { "cna": { "providerMetadata": { "orgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "shortName": "Linux", "dateUpdated": "2026-08-05T09:10:59.732Z" }, "descriptions": [ { "lang": "en", "value": "In the Linux kernel, the following vulnerability has been resolved:\n\ndrm/amdkfd: Confirm list is non-empty before utilizing list_first_entry in kfd_topology.c\n\nBefore using list_first_entry, make sure to check that list is not\nempty, if list is empty return -ENODATA.\n\nFixes the below:\ndrivers/gpu/drm/amd/amdgpu/../amdkfd/kfd_topology.c:1347 kfd_create_indirect_link_prop() warn: can 'gpu_link' even be NULL?\ndrivers/gpu/drm/amd/amdgpu/../amdkfd/kfd_topology.c:1428 kfd_add_peer_prop() warn: can 'iolink1' even be NULL?\ndrivers/gpu/drm/amd/amdgpu/../amdkfd/kfd_topology.c:1433 kfd_add_peer_prop() warn: can 'iolink2' even be NULL?" } ], "metrics": [ { "cvssV3_1": { "version": "3.1", "vectorString": "CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H", "baseScore": 7.8, "baseSeverity": "HIGH" }, "scenarios": [ { "lang": "en", "value": "AV:L - The bug is in drm/amdkfd topology setup (`kfd_create_indirect_link_prop` / `kfd_add_peer_prop`) reached during local AMD GPU device initialization and exposed via local sysfs under `/sys/class/kfd/`; it is not reachable from the network stack.\nAC:L - Once a device with an empty `io_link_props` list is present (e.g., multi-GPU/P2P topology build), `list_first_entry` reliably returns a type-confused pointer with no race or other attacker-uncontrollable timing requirement.\nPR:L - Exploitation requires only an unprivileged local account; world-readable KFD topology sysfs (mode 0444) can be read without capabilities or `/dev/kfd` render-group membership.\nUI:N - No victim interaction is required; topology construction runs during device init and a local attacker can read the resulting sysfs properties directly.\nS:U - Impact remains within the host kernel’s security authority; this is not a VM escape, IOMMU bypass, or other cross-boundary scope change.\nC:H - On an empty list, `list_first_entry` type-confuses the list head as `kfd_iolink_properties`, and `memcpy` copies adjacent `kfd_topology_device` fields (including kernel pointers) into heap objects later exposed through sysfs properties.\nI:H - This is type confusion that fabricates and links corrupted iolink objects into kernel topology lists; per CVSS kernel guidance, type confusion is scored as High integrity impact.\nA:H - The corrupted `gpu` pointer (mapped from adjacent kobject storage) is later passed to `kfd_devcgroup_check_permission()`, which dereferences it as a `kfd_dev` and can oops/panic the kernel on sysfs read." } ] } ], "affected": [ { "product": "Linux", "vendor": "Linux", "defaultStatus": "unaffected", "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git", "programFiles": [ "drivers/gpu/drm/amd/amdkfd/kfd_topology.c" ], "versions": [ { "version": "0f28cca87e9afc22280c44d378d2a6e249933977", "lessThan": "4525525cb7161d08f95d0e47025323dd10214313", "status": "affected", "versionType": "git" }, { "version": "0f28cca87e9afc22280c44d378d2a6e249933977", "lessThan": "5024cce888e11e5688f77df81db9e14828495d64", "status": "affected", "versionType": "git" }, { "version": "0f28cca87e9afc22280c44d378d2a6e249933977", "lessThan": "4ac4e023ed7ab1c7c67d2d12b7b6198fcd099e5c", "status": "affected", "versionType": "git" }, { "version": "0f28cca87e9afc22280c44d378d2a6e249933977", "lessThan": "499839eca34ad62d43025ec0b46b80e77065f6d8", "status": "affected", "versionType": "git" } ] }, { "product": "Linux", "vendor": "Linux", "defaultStatus": "affected", "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git", "programFiles": [ "drivers/gpu/drm/amd/amdkfd/kfd_topology.c" ], "versions": [ { "version": "6.0", "status": "affected" }, { "version": "0", "lessThan": "6.0", "status": "unaffected", "versionType": "semver" }, { "version": "6.1.75", "lessThanOrEqual": "6.1.*", "status": "unaffected", "versionType": "semver" }, { "version": "6.6.14", "lessThanOrEqual": "6.6.*", "status": "unaffected", "versionType": "semver" }, { "version": "6.7.2", "lessThanOrEqual": "6.7.*", "status": "unaffected", "versionType": "semver" }, { "version": "6.8", "lessThanOrEqual": "*", "status": "unaffected", "versionType": "original_commit_for_fix" } ] } ], "cpeApplicability": [ { "nodes": [ { "operator": "OR", "negate": false, "cpeMatch": [ { "vulnerable": true, "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "versionStartIncluding": "6.0", "versionEndExcluding": "6.1.75" }, { "vulnerable": true, "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "versionStartIncluding": "6.0", "versionEndExcluding": "6.6.14" }, { "vulnerable": true, "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "versionStartIncluding": "6.0", "versionEndExcluding": "6.7.2" }, { "vulnerable": true, "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "versionStartIncluding": "6.0", "versionEndExcluding": "6.8" } ] } ] } ], "references": [ { "url": "https://git.kernel.org/stable/c/4525525cb7161d08f95d0e47025323dd10214313" }, { "url": "https://git.kernel.org/stable/c/5024cce888e11e5688f77df81db9e14828495d64" }, { "url": "https://git.kernel.org/stable/c/4ac4e023ed7ab1c7c67d2d12b7b6198fcd099e5c" }, { "url": "https://git.kernel.org/stable/c/499839eca34ad62d43025ec0b46b80e77065f6d8" } ], "title": "drm/amdkfd: Confirm list is non-empty before utilizing list_first_entry in kfd_topology.c", "x_generator": { "engine": "bippy-1.2.0" } }, "adp": [ { "problemTypes": [ { "descriptions": [ { "type": "CWE", "lang": "en", "description": "CWE-noinfo Not enough information" } ] } ], "metrics": [ { "cvssV3_1": { "scope": "UNCHANGED", "version": "3.1", "baseScore": 5.5, "attackVector": "LOCAL", "baseSeverity": "MEDIUM", "vectorString": "CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H", "integrityImpact": "NONE", "userInteraction": "NONE", "attackComplexity": "LOW", "availabilityImpact": "HIGH", "privilegesRequired": "LOW", "confidentialityImpact": "NONE" } }, { "other": { "type": "ssvc", "content": { "timestamp": "2024-05-31T18:44:29.957691Z", "id": "CVE-2023-52678", "options": [ { "Exploitation": "none" }, { "Automatable": "no" }, { "Technical Impact": "partial" } ], "role": "CISA Coordinator", "version": "2.0.3" } } } ], "title": "CISA ADP Vulnrichment", "providerMetadata": { "orgId": "134c704f-9b21-4f2e-91b3-4a467353bcc0", "shortName": "CISA-ADP", "dateUpdated": "2024-11-07T17:27:53.284Z" } }, { "providerMetadata": { "orgId": "af854a3a-2127-422b-91ae-364da2661108", "shortName": "CVE", "dateUpdated": "2024-08-02T23:11:34.502Z" }, "title": "CVE Program Container", "references": [ { "url": "https://git.kernel.org/stable/c/4525525cb7161d08f95d0e47025323dd10214313", "tags": [ "x_transferred" ] }, { "url": "https://git.kernel.org/stable/c/5024cce888e11e5688f77df81db9e14828495d64", "tags": [ "x_transferred" ] }, { "url": "https://git.kernel.org/stable/c/4ac4e023ed7ab1c7c67d2d12b7b6198fcd099e5c", "tags": [ "x_transferred" ] }, { "url": "https://git.kernel.org/stable/c/499839eca34ad62d43025ec0b46b80e77065f6d8", "tags": [ "x_transferred" ] } ] } ] } }