CVE-2024-46811

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But array range of bw_params->clk_table.entries is 8.\n\n[How]\nAssert if soc.num_states greater than 8."}], "metrics": [{"cvssV3_1": {"version": "3.1", "vectorString": "CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:L/A:H", "baseScore": 7.3, "baseSeverity": "HIGH"}, "scenarios": [{"lang": "en", "value": "AV:L - The vulnerable code is reached only through amdgpu DC initialization paths on the local machine \u2014 `dc_construct()`, `dcn32_init_hw()`, and `get_memclk_states_from_smu()` during hardware init and suspend/resume. There is no network, adjacent-network, or physical-device vector.\nAC:L - On affected hardware the overrun happens deterministically whenever the firmware-reported DPM level count plus the hardcoded DCFCLK STA targets exceeds 8 \u2014 no race to win, no memory layout to groom, and no unlikely precondition. The vulnerable path in dcn302/dcn303 is entirely ungated.\nPR:L - The trigger points (DC hardware init and resume of the DRM device) are reachable in an ordinary unprivileged desktop session via logind-mediated suspend/resume of the GPU, without root in the init namespace. No pre-authentication or remote path exists, so PR:N is not supportable.\nUI:N - The bounding-box update runs automatically during driver hardware init and resume; no victim action such as opening a file or plugging in a display is required.\nS:U - The out-of-bounds read and the resulting corrupted DML bounding box are both entirely within the kernel's own security authority \u2014 there is no VM, IOMMU, or sandbox boundary crossed.\nC:H - With `num_states` able to reach `DC__VOLTAGE_STATES` (40) against an 8-element `entries[]`, the read runs up to ~1.3 KB past the end of the `struct clk_bw_params` allocation into adjacent slab memory \u2014 far beyond a \"few bytes\" bounded read. Those bytes are copied into `dml.soc.clock_limits[]`, which feeds userspace-observable clock and mode-validation state.\nI:L - There is no out-of-bounds write \u2014 `clock_limits[]` is 40 entries and the index is bounded by that \u2014 but attacker-uncontrolled garbage from adjacent memory is written into the DML soc bounding box and then used to program dispclk/dppclk/dcfclk/socclk, corrupting kernel state that drives real display hardware.\nA:H - Reading past the end of the heap-allocated `clk_bw_params` can fault or oops and reliably trips KASAN, and feeding nonsensical clock/voltage limits into DML can hang or blank the display pipeline. Any such kernel crash or hang is 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/amd/display/dc/dml/dcn302/dcn302_fpu.c", "drivers/gpu/drm/amd/display/dc/dml/dcn303/dcn303_fpu.c", "drivers/gpu/drm/amd/display/dc/dml/dcn32/dcn32_fpu.c", "drivers/gpu/drm/amd/display/dc/dml/dcn321/dcn321_fpu.c"], "versions": [{"version": "4562236b3bc0a28aeb6ee93b2d8a849a4c4e1c7c", "lessThan": "6d8685dd9718e0613f7c64253500874021b9efc9", "status": "affected", "versionType": "git"}, {"version": "4562236b3bc0a28aeb6ee93b2d8a849a4c4e1c7c", "lessThan": "4003bac784380fed1f94f197350567eaa73a409d", "status": "affected", "versionType": "git"}, {"version": "4562236b3bc0a28aeb6ee93b2d8a849a4c4e1c7c", "lessThan": "aba188d6f4ebaf52acf13f204db2bd2c22072504", "status": "affected", "versionType": "git"}, {"version": "4562236b3bc0a28aeb6ee93b2d8a849a4c4e1c7c", "lessThan": "188fd1616ec43033cedbe343b6579e9921e2d898", "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/display/dc/dml/dcn302/dcn302_fpu.c", "drivers/gpu/drm/amd/display/dc/dml/dcn303/dcn303_fpu.c", "drivers/gpu/drm/amd/display/dc/dml/dcn32/dcn32_fpu.c", "drivers/gpu/drm/amd/display/dc/dml/dcn321/dcn321_fpu.c"], "versions": [{"version": "4.15", "status": "affected"}, {"version": "0", "lessThan": "4.15", "status": "unaffected", "versionType": "semver"}, {"version": "6.1.191", "lessThanOrEqual": "6.1.*", "status": "unaffected", "versionType": "semver"}, {"version": "6.6.50", "lessThanOrEqual": "6.6.*", "status": "unaffected", "versionType": "semver"}, {"version": "6.10.9", "lessThanOrEqual": "6.10.*", "status": "unaffected", "versionType": "semver"}, {"version": "6.11", "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": "4.15", "versionEndExcluding": "6.1.191"}, {"vulnerable": true, "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "versionStartIncluding": "4.15", "versionEndExcluding": "6.6.50"}, {"vulnerable": true, "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "versionStartIncluding": "4.15", "versionEndExcluding": "6.10.9"}, {"vulnerable": true, "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "versionStartIncluding": "4.15", "versionEndExcluding": "6.11"}]}]}], "references": [{"url": "https://git.kernel.org/stable/c/6d8685dd9718e0613f7c64253500874021b9efc9"}, {"url": "https://git.kernel.org/stable/c/4003bac784380fed1f94f197350567eaa73a409d"}, {"url": "https://git.kernel.org/stable/c/aba188d6f4ebaf52acf13f204db2bd2c22072504"}, {"url": "https://git.kernel.org/stable/c/188fd1616ec43033cedbe343b6579e9921e2d898"}], "title": "drm/amd/display: Fix index may exceed array range within fpu_update_bw_bounding_box", "x_generator": {"engine": "bippy-1.2.0"}}, "adp": [{"metrics": [{"other": {"type": "ssvc", "content": {"timestamp": "2024-09-29T14:19:04.715171Z", "id": "CVE-2024-46811", "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": "2024-09-29T14:19:16.904Z"}}]}}

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There is no network, adjacent-network, or physical-device vector.\nAC:L - On affected hardware the overrun happens deterministically whenever the firmware-reported DPM level count plus the hardcoded DCFCLK STA targets exceeds 8 \u2014 no race to win, no memory layout to groom, and no unlikely precondition. The vulnerable path in dcn302/dcn303 is entirely ungated.\nPR:L - The trigger points (DC hardware init and resume of the DRM device) are reachable in an ordinary unprivileged desktop session via logind-mediated suspend/resume of the GPU, without root in the init namespace. No pre-authentication or remote path exists, so PR:N is not supportable.\nUI:N - The bounding-box update runs automatically during driver hardware init and resume; no victim action such as opening a file or plugging in a display is required.\nS:U - The out-of-bounds read and the resulting corrupted DML bounding box are both entirely within the kernel's own security authority \u2014 there is no VM, IOMMU, or sandbox boundary crossed.\nC:H - With `num_states` able to reach `DC__VOLTAGE_STATES` (40) against an 8-element `entries[]`, the read runs up to ~1.3 KB past the end of the `struct clk_bw_params` allocation into adjacent slab memory \u2014 far beyond a \"few bytes\" bounded read. Those bytes are copied into `dml.soc.clock_limits[]`, which feeds userspace-observable clock and mode-validation state.\nI:L - There is no out-of-bounds write \u2014 `clock_limits[]` is 40 entries and the index is bounded by that \u2014 but attacker-uncontrolled garbage from adjacent memory is written into the DML soc bounding box and then used to program dispclk/dppclk/dcfclk/socclk, corrupting kernel state that drives real display hardware.\nA:H - Reading past the end of the heap-allocated `clk_bw_params` can fault or oops and reliably trips KASAN, and feeding nonsensical clock/voltage limits into DML can hang or blank the display pipeline. 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But array range of bw_params->clk_table.entries is 8.\n\n[How]\nAssert if soc.num_states greater than 8."}], "cpeApplicability": [{"nodes": [{"negate": false, "cpeMatch": [{"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "vulnerable": true, "versionEndExcluding": "6.1.191", "versionStartIncluding": "4.15"}, {"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "vulnerable": true, "versionEndExcluding": "6.6.50", "versionStartIncluding": "4.15"}, {"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "vulnerable": true, "versionEndExcluding": "6.10.9", "versionStartIncluding": "4.15"}, {"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "vulnerable": true, "versionEndExcluding": "6.11", "versionStartIncluding": "4.15"}], "operator": "OR"}]}], "providerMetadata": {"orgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "shortName": "Linux", "dateUpdated": "2026-10-30T12:19:21.278Z"}}}, "cveMetadata": {"cveId": "CVE-2024-46811", "state": "PUBLISHED", "dateUpdated": "2026-10-30T12:19:21.278Z", "dateReserved": "2024-09-11T15:12:18.283Z", "assignerOrgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "datePublished": "2024-09-27T12:35:54.445Z", "assignerShortName": "Linux"}, "dataVersion": "5.2"}

{"affected": [{"affectedData": [{"defaultStatus": "unaffected", "product": "Linux", "programFiles": ["drivers/gpu/drm/amd/display/dc/dml/dcn302/dcn302_fpu.c", "drivers/gpu/drm/amd/display/dc/dml/dcn303/dcn303_fpu.c", "drivers/gpu/drm/amd/display/dc/dml/dcn32/dcn32_fpu.c", "drivers/gpu/drm/amd/display/dc/dml/dcn321/dcn321_fpu.c"], "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git", "vendor": "Linux", "versions": [{"lessThan": "6d8685dd9718e0613f7c64253500874021b9efc9", "status": "affected", "version": "4562236b3bc0a28aeb6ee93b2d8a849a4c4e1c7c", "versionType": "git"}, {"lessThan": "4003bac784380fed1f94f197350567eaa73a409d", "status": "affected", "version": "4562236b3bc0a28aeb6ee93b2d8a849a4c4e1c7c", "versionType": "git"}, {"lessThan": "aba188d6f4ebaf52acf13f204db2bd2c22072504", "status": "affected", "version": "4562236b3bc0a28aeb6ee93b2d8a849a4c4e1c7c", "versionType": "git"}, {"lessThan": "188fd1616ec43033cedbe343b6579e9921e2d898", "status": "affected", "version": "4562236b3bc0a28aeb6ee93b2d8a849a4c4e1c7c", "versionType": "git"}]}, {"defaultStatus": "affected", "product": "Linux", "programFiles": ["drivers/gpu/drm/amd/display/dc/dml/dcn302/dcn302_fpu.c", "drivers/gpu/drm/amd/display/dc/dml/dcn303/dcn303_fpu.c", "drivers/gpu/drm/amd/display/dc/dml/dcn32/dcn32_fpu.c", "drivers/gpu/drm/amd/display/dc/dml/dcn321/dcn321_fpu.c"], "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git", "vendor": "Linux", "versions": [{"status": "affected", "version": "4.15"}, {"lessThan": "4.15", "status": "unaffected", "version": "0", "versionType": "semver"}, {"lessThanOrEqual": "6.1.*", "status": "unaffected", "version": "6.1.191", "versionType": "semver"}, {"lessThanOrEqual": "6.6.*", "status": "unaffected", "version": "6.6.50", "versionType": "semver"}, {"lessThanOrEqual": "6.10.*", "status": "unaffected", "version": "6.10.9", "versionType": "semver"}, {"lessThanOrEqual": "*", "status": "unaffected", "version": "6.11", "versionType": "original_commit_for_fix"}]}], "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67"}], "configurations": [{"nodes": [{"cpeMatch": [{"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "matchCriteriaId": "FAE86900-6239-4D0C-B6C0-70BF7C6BA610", "versionEndExcluding": "6.6.50", "vulnerable": true}, {"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "matchCriteriaId": "F4469C96-A86B-4CC3-B2D5-C21B6B72641B", "versionEndExcluding": "6.10.9", "versionStartIncluding": "6.7", "vulnerable": true}], "negate": false, "operator": "OR"}]}], "cveTags": [], "descriptions": [{"lang": "en", "value": "In the Linux kernel, the following vulnerability has been resolved:\n\ndrm/amd/display: Fix index may exceed array range within fpu_update_bw_bounding_box\n\n[Why]\nCoverity reports OVERRUN warning. soc.num_states could\nbe 40. But array range of bw_params->clk_table.entries is 8.\n\n[How]\nAssert if soc.num_states greater than 8."}, {"lang": "es", "value": "En el kernel de Linux, se ha resuelto la siguiente vulnerabilidad: drm/amd/display: el \u00edndice de correcci\u00f3n puede exceder el rango de la matriz dentro de fpu_update_bw_bounding_box [Por qu\u00e9] Coverity informa una advertencia de OVERRUN. soc.num_states podr\u00eda ser 40. Pero el rango de la matriz de bw_params->clk_table.entries es 8. [C\u00f3mo] Confirmar si soc.num_states es mayor que 8."}], "id": "CVE-2024-46811", "lastModified": "2026-10-30T13:17:36.160", "metrics": {"cvssMetricV31": [{"cvssData": {"attackComplexity": "LOW", "attackVector": "LOCAL", "availabilityImpact": "HIGH", "baseScore": 7.3, "baseSeverity": "HIGH", "confidentialityImpact": "HIGH", "integrityImpact": "LOW", "privilegesRequired": "LOW", "scope": "UNCHANGED", "userInteraction": "NONE", "vectorString": "CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:L/A:H", "version": "3.1"}, "exploitabilityScore": 1.8, "impactScore": 5.5, "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "type": "Secondary"}, {"cvssData": {"attackComplexity": "LOW", "attackVector": "LOCAL", "availabilityImpact": "HIGH", "baseScore": 7.8, "baseSeverity": "HIGH", "confidentialityImpact": "HIGH", "integrityImpact": "HIGH", "privilegesRequired": "LOW", "scope": "UNCHANGED", "userInteraction": "NONE", "vectorString": "CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H", "version": "3.1"}, "exploitabilityScore": 1.8, "impactScore": 5.9, "source": "nvd@nist.gov", "type": "Primary"}], "ssvcV203": [{"source": "134c704f-9b21-4f2e-91b3-4a467353bcc0", "ssvcData": {"id": "CVE-2024-46811", "options": [{"exploitation": "none"}, {"automatable": "no"}, {"technicalImpact": "partial"}], "role": "CISA Coordinator", "timestamp": "2024-09-29T14:19:04.715171Z", "version": "2.0.3"}}]}, "published": "2024-09-27T13:15:14.107", "references": [{"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "tags": ["Patch"], "url": "https://git.kernel.org/stable/c/188fd1616ec43033cedbe343b6579e9921e2d898"}, {"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "tags": ["Patch"], "url": "https://git.kernel.org/stable/c/4003bac784380fed1f94f197350567eaa73a409d"}, {"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "url": "https://git.kernel.org/stable/c/6d8685dd9718e0613f7c64253500874021b9efc9"}, {"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "tags": ["Patch"], "url": "https://git.kernel.org/stable/c/aba188d6f4ebaf52acf13f204db2bd2c22072504"}], "sourceIdentifier": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "vulnStatus": "Modified", "weaknesses": [{"description": [{"lang": "en", "value": "CWE-129"}], "source": "nvd@nist.gov", "type": "Primary"}]}

{"bugzilla": {"description": "kernel: drm/amd/display: Fix index may exceed array range within fpu_update_bw_bounding_box", "id": "2315162", "url": "https://bugzilla.redhat.com/show_bug.cgi?id=2315162"}, "csaw": false, "cvss3": {"cvss3_base_score": "7.8", "cvss3_scoring_vector": "CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H", "status": "draft"}, "cwe": "CWE-129", "details": ["In the Linux kernel, the following vulnerability has been resolved:\ndrm/amd/display: Fix index may exceed array range within fpu_update_bw_bounding_box\n[Why]\nCoverity reports OVERRUN warning. soc.num_states could\nbe 40. But array range of bw_params->clk_table.entries is 8.\n[How]\nAssert if soc.num_states greater than 8."], "name": "CVE-2024-46811", "package_state": [{"cpe": "cpe:/o:redhat:enterprise_linux:6", "fix_state": "Not affected", "package_name": "kernel", "product_name": "Red Hat Enterprise Linux 6"}, {"cpe": "cpe:/o:redhat:enterprise_linux:7", "fix_state": "Not affected", "package_name": "kernel", "product_name": "Red Hat Enterprise Linux 7"}, {"cpe": "cpe:/o:redhat:enterprise_linux:7", "fix_state": "Not affected", "package_name": "kernel-rt", "product_name": "Red Hat Enterprise Linux 7"}, {"cpe": "cpe:/o:redhat:enterprise_linux:8", "fix_state": "Not affected", "package_name": "kernel", "product_name": "Red Hat Enterprise Linux 8"}, {"cpe": "cpe:/o:redhat:enterprise_linux:8", "fix_state": "Not affected", "package_name": "kernel-rt", "product_name": "Red Hat Enterprise Linux 8"}, {"cpe": "cpe:/o:redhat:enterprise_linux:9", "fix_state": "Not affected", "package_name": "kernel", "product_name": "Red Hat Enterprise Linux 9"}, {"cpe": "cpe:/o:redhat:enterprise_linux:9", "fix_state": "Not affected", "package_name": "kernel-rt", "product_name": "Red Hat Enterprise Linux 9"}], "public_date": "2024-09-27T00:00:00Z", "references": ["https://www.cve.org/CVERecord?id=CVE-2024-46811\nhttps://nvd.nist.gov/vuln/detail/CVE-2024-46811\nhttps://lore.kernel.org/linux-cve-announce/2024092710-CVE-2024-46811-f01c@gregkh/T"], "threat_severity": "Moderate"}

{}