{ "dataType": "CVE_RECORD", "dataVersion": "5.2", "cveMetadata": { "cveId": "CVE-2024-42066", "assignerOrgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "state": "PUBLISHED", "assignerShortName": "Linux", "dateReserved": "2024-07-29T15:50:41.167Z", "datePublished": "2024-07-29T15:52:30.984Z", "dateUpdated": "2026-08-05T11:35:24.979Z" }, "containers": { "cna": { "providerMetadata": { "orgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "shortName": "Linux", "dateUpdated": "2026-08-05T11:35:24.979Z" }, "descriptions": [ { "lang": "en", "value": "In the Linux kernel, the following vulnerability has been resolved:\n\ndrm/xe: Fix potential integer overflow in page size calculation\n\nExplicitly cast tbo->page_alignment to u64 before bit-shifting to\nprevent overflow when assigning to min_page_size." } ], "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 code is reached only through the DRM_IOCTL_XE_GEM_CREATE ioctl on the local /dev/dri/renderD* node, which drives TTM BO validation into xe_ttm_vram_mgr_new(). There is no remote or network-facing path into the xe VRAM manager.\nAC:L - The triggering sequence is a single deterministic ioctl with no race window, no memory-layout dependency, and no reliance on victim state. Per the guidance, the absence of any attacker-controlled race or unpredictable precondition in the call sequence makes this Low.\nPR:L - The ioctl is DRM_RENDER_ALLOW, so it needs neither DRM master nor any capability — an ordinary local account with render-node access (default for desktop sessions via logind, and for apps on Android/embedded GPU stacks) suffices. Real root is not required.\nUI:N - The attacker performs the GEM create ioctl entirely on their own; no victim must open a file, mount a filesystem, or take any other action.\nS:U - The truncated min_page_size affects VRAM buddy allocation inside the same kernel security authority that already manages the requesting process's buffers. No IOMMU, hypervisor, or sandbox boundary is crossed.\nC:H - A nonzero truncated min_page_size yields a VRAM allocation under-aligned relative to the hardware's 64K page requirement, so GPU page-table entries can cover VRAM belonging to other buffer objects, exposing another client's GPU memory contents. Treated as High per the guidance that memory-safety defects leveragable for disclosure score H.\nI:H - The same under-aligned mapping is writable by the GPU, allowing writes past the intended buffer into neighbouring VRAM belonging to other contexts, which is an out-of-bounds write primitive in device memory. Out-of-bounds writes score High.\nA:H - Truncation of the shift to exactly zero lands in WARN_ON(min_page_size < mm->chunk_size), producing a kernel warning that panics outright on the panic_on_warn configurations common in hardened, CI, and cloud kernels; corrupted VRAM mappings also produce GPU hangs and resets. Any kernel crash or hang scores High." } ] } ], "affected": [ { "product": "Linux", "vendor": "Linux", "defaultStatus": "unaffected", "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git", "programFiles": [ "drivers/gpu/drm/xe/xe_ttm_vram_mgr.c" ], "versions": [ { "version": "dd08ebf6c3525a7ea2186e636df064ea47281987", "lessThan": "79d54ddf0e292b810887994bb04709c5ac0e1531", "status": "affected", "versionType": "git" }, { "version": "dd08ebf6c3525a7ea2186e636df064ea47281987", "lessThan": "4f4fcafde343a54465f85a2909fc684918507a4b", "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/xe/xe_ttm_vram_mgr.c" ], "versions": [ { "version": "6.8", "status": "affected" }, { "version": "0", "lessThan": "6.8", "status": "unaffected", "versionType": "semver" }, { "version": "6.9.8", "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": "6.8", "versionEndExcluding": "6.9.8" }, { "vulnerable": true, "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "versionStartIncluding": "6.8", "versionEndExcluding": "6.10" } ] } ] } ], "references": [ { "url": "https://git.kernel.org/stable/c/79d54ddf0e292b810887994bb04709c5ac0e1531" }, { "url": "https://git.kernel.org/stable/c/4f4fcafde343a54465f85a2909fc684918507a4b" } ], "title": "drm/xe: Fix potential integer overflow in page size calculation", "x_generator": { "engine": "bippy-1.2.0" } }, "adp": [ { "providerMetadata": { "orgId": "af854a3a-2127-422b-91ae-364da2661108", "shortName": "CVE", "dateUpdated": "2024-08-02T04:54:31.373Z" }, "title": "CVE Program Container", "references": [ { "url": "https://git.kernel.org/stable/c/79d54ddf0e292b810887994bb04709c5ac0e1531", "tags": [ "x_transferred" ] }, { "url": "https://git.kernel.org/stable/c/4f4fcafde343a54465f85a2909fc684918507a4b", "tags": [ "x_transferred" ] } ] }, { "metrics": [ { "other": { "type": "ssvc", "content": { "id": "CVE-2024-42066", "role": "CISA Coordinator", "options": [ { "Exploitation": "none" }, { "Automatable": "no" }, { "Technical Impact": "partial" } ], "version": "2.0.3", "timestamp": "2024-09-10T16:19:59.323646Z" } } } ], "title": "CISA ADP Vulnrichment", "providerMetadata": { "orgId": "134c704f-9b21-4f2e-91b3-4a467353bcc0", "shortName": "CISA-ADP", "dateUpdated": "2024-09-11T17:32:55.779Z" } } ] } }