{ "dataType": "CVE_RECORD", "dataVersion": "5.2", "cveMetadata": { "cveId": "CVE-2023-53819", "assignerOrgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "state": "PUBLISHED", "assignerShortName": "Linux", "dateReserved": "2025-12-08T23:58:35.277Z", "datePublished": "2025-12-09T00:01:17.936Z", "dateUpdated": "2026-08-05T09:16:12.588Z" }, "containers": { "cna": { "providerMetadata": { "orgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "shortName": "Linux", "dateUpdated": "2026-08-05T09:16:12.588Z" }, "descriptions": [ { "lang": "en", "value": "In the Linux kernel, the following vulnerability has been resolved:\n\namdgpu: validate offset_in_bo of drm_amdgpu_gem_va\n\nThis is motivated by OOB access in amdgpu_vm_update_range when\noffset_in_bo+map_size overflows.\n\nv2: keep the validations in amdgpu_vm_bo_map\nv3: add the validations to amdgpu_vm_bo_map/amdgpu_vm_bo_replace_map\n rather than to amdgpu_gem_va_ioctl" } ], "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 vulnerability is reached through the `DRM_IOCTL_AMDGPU_GEM_VA` ioctl on a local DRM device node (`/dev/dri/renderD*` or `card*`), requiring local system access. There is no network-facing path to `amdgpu_vm_bo_map()`.\nAC:L - A single ioctl with an attacker-chosen page-aligned `offset_in_bo` near 2^64 deterministically wraps the `offset + size` bounds check; there is no race, no timing window, and no dependence on memory layout the attacker cannot influence. The OOB index is fully attacker-controlled, so the target of the wild access can be aimed rather than guessed.\nPR:L - The ioctl is registered `DRM_AUTH|DRM_RENDER_ALLOW`, so any unprivileged local user with access to the render node can invoke it — this includes members of the render/video group, any user with a logind graphical session, containers with GPU passthrough, and sandboxed processes such as browser GPU processes. No root or capability is required.\nUI:N - The attacker performs GEM object creation and the malicious `AMDGPU_VA_OP_MAP`/`AMDGPU_VA_OP_REPLACE` ioctl entirely on its own; no victim action or cooperation is needed.\nS:U - The vulnerable amdgpu driver code and the corrupted kernel memory are within the same security authority (the host kernel). This is standard local kernel compromise rather than a VM or IOMMU boundary escape.\nC:H - The overflowed offset produces an OOB read `pages_addr[cursor.start >> PAGE_SHIFT]` at an attacker-chosen index spanning up to 2^55 bytes past the DMA-address array, and the value read becomes the physical address in a GPU page table entry, letting the attacker's GPU context read arbitrary physical memory. The TT node-walk path additionally performs unbounded OOB reads of kernel heap data.\nI:H - Because the OOB-read value is installed as a GPU PTE physical address, the attacker's own GPU commands gain DMA write access to arbitrary physical memory, giving a full arbitrary-write primitive suitable for kernel code/credential modification. Attacker-controlled page table entries also corrupt the VM state itself.\nA:H - The same input reliably produces kernel crashes — wild pointer dereference in the `node++` mm_nodes walk, a reachable `BUG_ON(start + size > res->size)`, and an effectively unbounded VRAM block-walk loop executed while holding `vm->eviction_lock` with BOs reserved, causing a soft lockup/hang. Any of these panics or wedges the GPU and the system." } ] } ], "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/amdgpu_vm.c" ], "versions": [ { "version": "9f7eb5367d0001536c361bd1400e14521f854ff1", "lessThan": "82aace80cfaab778245bd2f9e31b67953725e4d0", "status": "affected", "versionType": "git" }, { "version": "9f7eb5367d0001536c361bd1400e14521f854ff1", "lessThan": "d83c337e654d58d3edd15a2ae76e87dc601c07d9", "status": "affected", "versionType": "git" }, { "version": "9f7eb5367d0001536c361bd1400e14521f854ff1", "lessThan": "968e27fd037ec4732068820a9b9836eccc0e0a12", "status": "affected", "versionType": "git" }, { "version": "9f7eb5367d0001536c361bd1400e14521f854ff1", "lessThan": "4300a47e4017c9febb60ffa7d39723eeaed00f2b", "status": "affected", "versionType": "git" }, { "version": "9f7eb5367d0001536c361bd1400e14521f854ff1", "lessThan": "b10db1d2137415e5e7f9706d96cfe77539c499d4", "status": "affected", "versionType": "git" }, { "version": "9f7eb5367d0001536c361bd1400e14521f854ff1", "lessThan": "f015aadc0d973047f49526a127e900c488d4e425", "status": "affected", "versionType": "git" }, { "version": "9f7eb5367d0001536c361bd1400e14521f854ff1", "lessThan": "bc6dbf34dc4fb639522f3e8e66ef05997c0441ee", "status": "affected", "versionType": "git" }, { "version": "9f7eb5367d0001536c361bd1400e14521f854ff1", "lessThan": "9f0bcf49e9895cb005d78b33a5eebfa11711b425", "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/amdgpu_vm.c" ], "versions": [ { "version": "4.2", "status": "affected" }, { "version": "0", "lessThan": "4.2", "status": "unaffected", "versionType": "semver" }, { "version": "4.19.313", "lessThanOrEqual": "4.19.*", "status": "unaffected", "versionType": "semver" }, { "version": "5.4.275", "lessThanOrEqual": "5.4.*", "status": "unaffected", "versionType": "semver" }, { "version": "5.10.188", "lessThanOrEqual": "5.10.*", "status": "unaffected", "versionType": "semver" }, { "version": "5.15.121", "lessThanOrEqual": "5.15.*", "status": "unaffected", "versionType": "semver" }, { "version": "6.1.39", "lessThanOrEqual": "6.1.*", "status": "unaffected", "versionType": "semver" }, { "version": "6.3.13", "lessThanOrEqual": "6.3.*", "status": "unaffected", "versionType": "semver" }, { "version": "6.4.4", "lessThanOrEqual": "6.4.*", "status": "unaffected", "versionType": "semver" }, { "version": "6.5", "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": "4.2", "versionEndExcluding": "4.19.313" }, { "vulnerable": true, "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "versionStartIncluding": "4.2", "versionEndExcluding": "5.4.275" }, { "vulnerable": true, "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "versionStartIncluding": "4.2", "versionEndExcluding": "5.10.188" }, { "vulnerable": true, "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "versionStartIncluding": "4.2", "versionEndExcluding": "5.15.121" }, { "vulnerable": true, "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "versionStartIncluding": "4.2", "versionEndExcluding": "6.1.39" }, { "vulnerable": true, "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "versionStartIncluding": "4.2", "versionEndExcluding": "6.3.13" }, { "vulnerable": true, "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "versionStartIncluding": "4.2", "versionEndExcluding": "6.4.4" }, { "vulnerable": true, "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "versionStartIncluding": "4.2", "versionEndExcluding": "6.5" } ] } ] } ], "references": [ { "url": "https://git.kernel.org/stable/c/82aace80cfaab778245bd2f9e31b67953725e4d0" }, { "url": "https://git.kernel.org/stable/c/d83c337e654d58d3edd15a2ae76e87dc601c07d9" }, { "url": "https://git.kernel.org/stable/c/968e27fd037ec4732068820a9b9836eccc0e0a12" }, { "url": "https://git.kernel.org/stable/c/4300a47e4017c9febb60ffa7d39723eeaed00f2b" }, { "url": "https://git.kernel.org/stable/c/b10db1d2137415e5e7f9706d96cfe77539c499d4" }, { "url": "https://git.kernel.org/stable/c/f015aadc0d973047f49526a127e900c488d4e425" }, { "url": "https://git.kernel.org/stable/c/bc6dbf34dc4fb639522f3e8e66ef05997c0441ee" }, { "url": "https://git.kernel.org/stable/c/9f0bcf49e9895cb005d78b33a5eebfa11711b425" } ], "title": "amdgpu: validate offset_in_bo of drm_amdgpu_gem_va", "x_generator": { "engine": "bippy-1.2.0" } } } }