{ "dataType": "CVE_RECORD", "dataVersion": "5.2", "cveMetadata": { "cveId": "CVE-2024-39471", "assignerOrgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "state": "PUBLISHED", "assignerShortName": "Linux", "dateReserved": "2024-06-25T14:23:23.745Z", "datePublished": "2024-06-25T14:28:56.906Z", "dateUpdated": "2026-08-05T11:33:28.594Z" }, "containers": { "cna": { "providerMetadata": { "orgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "shortName": "Linux", "dateUpdated": "2026-08-05T11:33:28.594Z" }, "descriptions": [ { "lang": "en", "value": "In the Linux kernel, the following vulnerability has been resolved:\n\ndrm/amdgpu: add error handle to avoid out-of-bounds\n\nif the sdma_v4_0_irq_id_to_seq return -EINVAL, the process should\nbe stop to avoid out-of-bounds read, so directly return -EINVAL." } ], "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 amdgpu SDMA trap interrupt handler is only reachable on a machine with a local AMD GPU, driven through the DRM device/render nodes (`/dev/dri/renderD*`) and the GPU interrupt ring. There is no network or adjacent-network path to this code.\nAC:L - The out-of-bounds index is fully deterministic — once an interrupt vector with an unmatched SDMA client ID is processed, `-EINVAL` is used as the array index every time, with no race window, no memory-layout guessing, and no state the attacker must wait for. A local user with render-node access can keep the SDMA engines and their trap/error interrupts firing continuously to reach the handler repeatedly.\nPR:L - Exercising SDMA queues and provoking trap interrupts only requires opening the unprivileged DRM render node, which is group-readable to ordinary logged-in users on desktops, Android devices, and GPU cloud/container instances. No CAP_SYS_ADMIN or root in the initial namespace is needed.\nUI:N - The interrupt handler runs asynchronously from GPU activity the attacker's own process generates; no victim must open a file, mount anything, or take any action.\nS:U - The corruption is confined to kernel memory within the same security authority as the host kernel; no VM, IOMMU, or sandbox boundary is crossed.\nC:H - `adev->sdma.instance[0xFFFFFFEA]` is an unbounded out-of-bounds read many gigabytes beyond the array, and `amdgpu_fence_process()` then dereferences the resulting `struct amdgpu_ring`, reading `fence_drv.last_seq`, `sync_seq`, `num_fences_mask`, `adev`, and the `fences[]` pointer array from that location — arbitrary kernel memory read, not a bounded few-byte overread.\nI:H - The wild pointer is not merely read: `amdgpu_fence_process()` performs `atomic_cmpxchg()` on `drv->last_seq`, `timer_delete()` on `fence_drv.fallback_timer`, `RCU_INIT_POINTER(*ptr, NULL)` stores into `drv->fences[]`, and `dma_fence_put()` (a refcount decrement plus potential release callback) on the garbage pointer — out-of-bounds writes and a refcount-decrement primitive that are the classic building blocks for control-flow hijacking.\nA:H - Dereferencing a pointer several terabytes out of range in hard-interrupt context faults on unmapped kernel memory, producing an oops/panic that cannot be recovered from in IRQ context, and the corrupting writes and bogus `dma_fence_put()` release paths add further crash modes." } ] } ], "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/amdgpu/sdma_v4_0.c" ], "versions": [ { "version": "7d0e6329dfdcfe48311f8888d6a8dfa73bee00a9", "lessThan": "5594971e02764aa1c8210ffb838cb4e7897716e8", "status": "affected", "versionType": "git" }, { "version": "7d0e6329dfdcfe48311f8888d6a8dfa73bee00a9", "lessThan": "8112fa72b7f139052843ff484130d6f97e9f052f", "status": "affected", "versionType": "git" }, { "version": "7d0e6329dfdcfe48311f8888d6a8dfa73bee00a9", "lessThan": "ea906e9ac61e3152bef63597f2d9f4a812fc346a", "status": "affected", "versionType": "git" }, { "version": "7d0e6329dfdcfe48311f8888d6a8dfa73bee00a9", "lessThan": "011552f29f20842c9a7a21bffe1f6a2d6457ba46", "status": "affected", "versionType": "git" }, { "version": "7d0e6329dfdcfe48311f8888d6a8dfa73bee00a9", "lessThan": "5b0a3dc3e87821acb80e841b464d335aff242691", "status": "affected", "versionType": "git" }, { "version": "7d0e6329dfdcfe48311f8888d6a8dfa73bee00a9", "lessThan": "0964c84b93db7fbf74f357c1e20957850e092db3", "status": "affected", "versionType": "git" }, { "version": "7d0e6329dfdcfe48311f8888d6a8dfa73bee00a9", "lessThan": "8b2faf1a4f3b6c748c0da36cda865a226534d520", "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/amdgpu/sdma_v4_0.c" ], "versions": [ { "version": "5.4", "status": "affected" }, { "version": "0", "lessThan": "5.4", "status": "unaffected", "versionType": "semver" }, { "version": "5.4.278", "lessThanOrEqual": "5.4.*", "status": "unaffected", "versionType": "semver" }, { "version": "5.10.219", "lessThanOrEqual": "5.10.*", "status": "unaffected", "versionType": "semver" }, { "version": "5.15.161", "lessThanOrEqual": "5.15.*", "status": "unaffected", "versionType": "semver" }, { "version": "6.1.94", "lessThanOrEqual": "6.1.*", "status": "unaffected", "versionType": "semver" }, { "version": "6.6.34", "lessThanOrEqual": "6.6.*", "status": "unaffected", "versionType": "semver" }, { "version": "6.9.5", "lessThanOrEqual": "6.9.*", "status": "unaffected", "versionType": "semver" }, { "version": "6.10", "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": "5.4", "versionEndExcluding": "5.4.278" }, { "vulnerable": true, "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "versionStartIncluding": "5.4", "versionEndExcluding": "5.10.219" }, { "vulnerable": true, "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "versionStartIncluding": "5.4", "versionEndExcluding": "5.15.161" }, { "vulnerable": true, "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "versionStartIncluding": "5.4", "versionEndExcluding": "6.1.94" }, { "vulnerable": true, "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "versionStartIncluding": "5.4", "versionEndExcluding": "6.6.34" }, { "vulnerable": true, "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "versionStartIncluding": "5.4", "versionEndExcluding": "6.9.5" }, { "vulnerable": true, "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "versionStartIncluding": "5.4", "versionEndExcluding": "6.10" } ] } ] } ], "references": [ { "url": "https://git.kernel.org/stable/c/5594971e02764aa1c8210ffb838cb4e7897716e8" }, { "url": "https://git.kernel.org/stable/c/8112fa72b7f139052843ff484130d6f97e9f052f" }, { "url": "https://git.kernel.org/stable/c/ea906e9ac61e3152bef63597f2d9f4a812fc346a" }, { "url": "https://git.kernel.org/stable/c/011552f29f20842c9a7a21bffe1f6a2d6457ba46" }, { "url": "https://git.kernel.org/stable/c/5b0a3dc3e87821acb80e841b464d335aff242691" }, { "url": "https://git.kernel.org/stable/c/0964c84b93db7fbf74f357c1e20957850e092db3" }, { "url": "https://git.kernel.org/stable/c/8b2faf1a4f3b6c748c0da36cda865a226534d520" } ], "title": "drm/amdgpu: add error handle to avoid out-of-bounds", "x_generator": { "engine": "bippy-1.2.0" } }, "adp": [ { "providerMetadata": { "orgId": 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