CVE-2024-46815

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Local is selected over Physical as the higher-severity of the two defensible options.\nAC:L - Once a platform presents the anomalous watermark table (first valid entry typed `WM_TYPE_RETRAINING`), the negative-index write occurs deterministically on every `rn_notify_wm_ranges()` call \u2014 there is no race, timing window, or memory-layout condition outside the attacker's control. Chosen as the higher-severity option even though the driver's own table-population code cannot produce that state.\nPR:L - On an affected platform the vulnerable path is re-entered on every GPU D0 transition, and an unprivileged local user holding `/dev/dri/cardN` (normal desktop/kiosk seat access) can force repeated runtime suspend/resume cycles to re-run `dcn10_init_hw()` \u2192 `rn_notify_wm_ranges()`. No root, CAP_SYS_ADMIN, or namespace privilege is needed to reach the code.\nUI:N - The attacker drives the GPU power-state transitions themselves via their own DRM device access; no separate victim has to log in, open a file, or perform any action.\nS:U - The corrupted memory is the kernel's own `struct clk_mgr_internal` allocation inside the amdgpu driver, so the fault and its impact stay within the kernel's security authority \u2014 no VM, IOMMU, or sandbox boundary is crossed.\nC:N - The defect is a write of the fixed constant `PP_SMU_WM_SET_RANGE_CLK_UNCONSTRAINED_MAX` (0xFFFF) to a fixed negative offset; there is no out-of-bounds read, no attacker-chosen address, and no value returned to userspace or any observable channel.\nI:H - This is an out-of-bounds (negative-index) write that lands squarely on the upper half of the live `clk_mgr->bw_params` kernel pointer, corrupting kernel state that is dereferenced repeatedly afterwards by the clock manager and DML code. Per kernel scoring guidance, an out-of-bounds write is High.\nA:H - After the write, `bw_params` is a wild pointer dereferenced throughout `rn_clk_mgr`/DML on every clock update, producing an oops or panic; because it recurs on each GPU resume, the system is left unusable rather than transiently degraded."}]}], "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/clk_mgr/dcn21/rn_clk_mgr.c"], "versions": [{"version": "4562236b3bc0a28aeb6ee93b2d8a849a4c4e1c7c", "lessThan": "a72d4996409569027b4609414a14a87679b12267", "status": "affected", "versionType": "git"}, {"version": "4562236b3bc0a28aeb6ee93b2d8a849a4c4e1c7c", "lessThan": "7c47dd2e92341f2989ab73dbed07f8894593ad7b", "status": "affected", "versionType": "git"}, {"version": "4562236b3bc0a28aeb6ee93b2d8a849a4c4e1c7c", "lessThan": "c4a7f7c0062fe2c73f70bb7e335199e25bd71492", "status": 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Esto soluciona un problema de OVERRUN informado por Coverity."}], "id": "CVE-2024-46815", "lastModified": "2026-08-04T11:20:29.080", "metrics": {"cvssMetricV31": [{"cvssData": {"attackComplexity": "LOW", "attackVector": "LOCAL", "availabilityImpact": "HIGH", "baseScore": 7.1, "baseSeverity": "HIGH", "confidentialityImpact": "NONE", "integrityImpact": "HIGH", "privilegesRequired": "LOW", "scope": "UNCHANGED", "userInteraction": "NONE", "vectorString": "CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:H/A:H", "version": "3.1"}, "exploitabilityScore": 1.8, "impactScore": 5.2, "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-2024-46815", "options": [{"exploitation": "none"}, {"automatable": "no"}, {"technicalImpact": "partial"}], "role": "CISA Coordinator", "timestamp": "2024-09-29T14:18:10.423569Z", "version": "2.0.3"}}]}, "published": "2024-09-27T13:15:14.370", "references": [{"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "tags": ["Patch"], "url": "https://git.kernel.org/stable/c/21f9cb44f8c60bf6c26487d428b1a09ad3e8aebf"}, {"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "tags": ["Patch"], "url": "https://git.kernel.org/stable/c/6a4a08e45e614cfa7a56498cdfaeb7fae2f07fa0"}, {"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "tags": ["Patch"], "url": "https://git.kernel.org/stable/c/7c47dd2e92341f2989ab73dbed07f8894593ad7b"}, {"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "tags": ["Patch"], "url": "https://git.kernel.org/stable/c/a72d4996409569027b4609414a14a87679b12267"}, {"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "tags": ["Patch"], "url": "https://git.kernel.org/stable/c/b36e9b3104c4ba0f2f5dd083dcf6159cb316c996"}, {"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "tags": ["Patch"], "url": "https://git.kernel.org/stable/c/b38a4815f79b87efb196cd5121579fc51e29a7fb"}, {"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "tags": ["Patch"], "url": "https://git.kernel.org/stable/c/c4a7f7c0062fe2c73f70bb7e335199e25bd71492"}, {"source": "af854a3a-2127-422b-91ae-364da2661108", "url": "https://lists.debian.org/debian-lts-announce/2024/10/msg00003.html"}, {"source": "af854a3a-2127-422b-91ae-364da2661108", "url": "https://lists.debian.org/debian-lts-announce/2025/01/msg00001.html"}], "sourceIdentifier": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "vulnStatus": "Modified", "weaknesses": [{"description": [{"lang": "en", "value": "NVD-CWE-noinfo"}], "source": "nvd@nist.gov", "type": "Primary"}]}

{"bugzilla": {"description": "kernel: drm/amd/display: Check num_valid_sets before accessing reader_wm_sets[]", "id": "2315166", "url": "https://bugzilla.redhat.com/show_bug.cgi?id=2315166"}, "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: Check num_valid_sets before accessing reader_wm_sets[]\n[WHY & HOW]\nnum_valid_sets needs to be checked to avoid a negative index when\naccessing reader_wm_sets[num_valid_sets - 1].\nThis fixes an OVERRUN issue reported by Coverity."], "name": "CVE-2024-46815", "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-2024-46815\nhttps://nvd.nist.gov/vuln/detail/CVE-2024-46815\nhttps://lore.kernel.org/linux-cve-announce/2024092711-CVE-2024-46815-fce2@gregkh/T"], "threat_severity": "Important"}

{}