{ "dataType": "CVE_RECORD", "dataVersion": "5.2", "cveMetadata": { "cveId": "CVE-2023-53707", "assignerOrgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "state": "PUBLISHED", "assignerShortName": "Linux", "dateReserved": "2025-10-22T13:21:37.346Z", "datePublished": "2025-10-22T13:23:43.822Z", "dateUpdated": "2026-08-05T09:15:38.286Z" }, "containers": { "cna": { "providerMetadata": { "orgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "shortName": "Linux", "dateUpdated": "2026-08-05T09:15:38.286Z" }, "descriptions": [ { "lang": "en", "value": "In the Linux kernel, the following vulnerability has been resolved:\n\ndrm/amdgpu: Fix integer overflow in amdgpu_cs_pass1\n\nThe type of size is unsigned int, if size is 0x40000000, there will\nbe an integer overflow, size will be zero after size *= sizeof(uint32_t),\nwill cause uninitialized memory to be referenced later." } ], "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 only through the DRM_IOCTL_AMDGPU_CS ioctl on a local amdgpu device node (/dev/dri/renderD* or card*), requiring local access to the machine. There is no network or remote-peer path into amdgpu_cs_pass1().\nAC:L - The attacker directly supplies the overflowing value (length_dw >= 0x40000000) in a single ioctl call with no race, timing, or memory-layout condition to win, and can free memory and retry to make the large allocation succeed. On the multi-GiB systems where AMD GPUs are deployed (workstations, Steam Deck, cloud GPU nodes) the allocation reliably succeeds.\nPR:L - AMDGPU_CS is registered with DRM_RENDER_ALLOW, so no DRM master, authentication, or capability is required — any unprivileged local user or sandboxed app holding an fd on the render node can invoke it, which is standard for desktop sessions, Android apps, and GPU-enabled containers.\nUI:N - Exploitation is a self-contained sequence of ioctls issued by the attacker's own process; no victim action, file open, or mount is needed.\nS:U - The corrupted state and the uninitialized data consumed all live within the kernel's own security authority on the same host; no VM, IOMMU, or sandbox boundary is crossed.\nC:H - A multi-gigabyte kvmalloc/vmalloc buffer is left completely uninitialized and then consumed as GEM handles, BO-list descriptors, user pointers and fence offsets, exposing stale kernel/page contents; the resulting lookup success/failure and the observable fence write offset form oracles that let an attacker read back that uninitialized kernel memory.\nI:H - Uninitialized kernel memory — attacker-groomable via page spraying — is used as GPU virtual addresses, IB sizes, flags, buffer-object handles and __user pointers that drive command submission, BO list construction and the user-fence write target, giving control-relevant fields that can be steered toward memory corruption.\nA:H - An unprivileged caller can force repeated 4 GiB kernel allocations causing reclaim storms and OOM kills, trips a WARN_ON_ONCE() in kvmalloc_node() (a panic under panic_on_warn), and drives the CS parser through uninitialized state, producing kernel crashes and denial of service." } ] } ], "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_cs.c" ], "versions": [ { "version": "d38ceaf99ed015f2a0b9af3499791bd3a3daae21", "lessThan": "9f55d300541cb5b435984d269087810581580b00", "status": "affected", "versionType": "git" }, { "version": "d38ceaf99ed015f2a0b9af3499791bd3a3daae21", "lessThan": "c3deb091398e9e469d08dd1599b6d76fd6b29df8", "status": "affected", "versionType": "git" }, { "version": "d38ceaf99ed015f2a0b9af3499791bd3a3daae21", "lessThan": "87c2213e85bd81e4a9a4d0880c256568794ae388", "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_cs.c" ], "versions": [ { "version": "4.2", "status": "affected" }, { "version": "0", "lessThan": "4.2", "status": "unaffected", "versionType": "semver" }, { "version": "6.1.47", "lessThanOrEqual": "6.1.*", "status": "unaffected", "versionType": "semver" }, { "version": "6.4.12", "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": "6.1.47" }, { "vulnerable": true, "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "versionStartIncluding": "4.2", "versionEndExcluding": "6.4.12" }, { "vulnerable": true, "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "versionStartIncluding": "4.2", "versionEndExcluding": "6.5" } ] } ] } ], "references": [ { "url": "https://git.kernel.org/stable/c/9f55d300541cb5b435984d269087810581580b00" }, { "url": "https://git.kernel.org/stable/c/c3deb091398e9e469d08dd1599b6d76fd6b29df8" }, { "url": "https://git.kernel.org/stable/c/87c2213e85bd81e4a9a4d0880c256568794ae388" } ], "title": "drm/amdgpu: Fix integer overflow in amdgpu_cs_pass1", "x_generator": { "engine": "bippy-1.2.0" } } } }