{"dataType":"CVE_RECORD","dataVersion":"5.2","cveMetadata":{"cveId":"CVE-2024-46815","assignerOrgId":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","state":"PUBLISHED","assignerShortName":"Linux","dateReserved":"2024-09-11T15:12:18.283Z","datePublished":"2024-09-27T12:35:57.062Z","dateUpdated":"2026-08-05T11:38:46.003Z"},"containers":{"cna":{"providerMetadata":{"orgId":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","shortName":"Linux","dateUpdated":"2026-08-05T11:38:46.003Z"},"descriptions":[{"lang":"en","value":"In the Linux kernel, the following vulnerability has been resolved:\n\ndrm/amd/display: Check num_valid_sets before accessing reader_wm_sets[]\n\n[WHY & HOW]\nnum_valid_sets needs to be checked to avoid a negative index when\naccessing reader_wm_sets[num_valid_sets - 1].\n\nThis fixes an OVERRUN issue reported by Coverity."}],"metrics":[{"cvssV3_1":{"version":"3.1","vectorString":"CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:H/A:H","baseScore":7.1,"baseSeverity":"HIGH"},"scenarios":[{"lang":"en","value":"AV:L - The affected code is amdgpu display clock-manager init for DCN2.1 (Renoir/Cezanne APUs), reached only through local GPU bring-up — driver probe and `dc_set_power_state(D0)` on system/runtime-PM resume — with no network, packet, or remote-peer input anywhere on the path. 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 — 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()` → `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 — 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":"affected","versionType":"git"},{"version":"4562236b3bc0a28aeb6ee93b2d8a849a4c4e1c7c","lessThan":"b36e9b3104c4ba0f2f5dd083dcf6159cb316c996","status":"affected","versionType":"git"},{"version":"4562236b3bc0a28aeb6ee93b2d8a849a4c4e1c7c","lessThan":"21f9cb44f8c60bf6c26487d428b1a09ad3e8aebf","status":"affected","versionType":"git"},{"version":"4562236b3bc0a28aeb6ee93b2d8a849a4c4e1c7c","lessThan":"6a4a08e45e614cfa7a56498cdfaeb7fae2f07fa0","status":"affected","versionType":"git"},{"version":"4562236b3bc0a28aeb6ee93b2d8a849a4c4e1c7c","lessThan":"b38a4815f79b87efb196cd5121579fc51e29a7fb","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/clk_mgr/dcn21/rn_clk_mgr.c"],"versions":[{"version":"4.15","status":"affected"},{"version":"0","lessThan":"4.15","status":"unaffected","versionType":"semver"},{"version":"5.4.284","lessThanOrEqual":"5.4.*","status":"unaffected","versionType":"semver"},{"version":"5.10.226","lessThanOrEqual":"5.10.*","status":"unaffected","versionType":"semver"},{"version":"5.15.167","lessThanOrEqual":"5.15.*","status":"unaffected","versionType":"semver"},{"version":"6.1.109","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":"5.4.284"},{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"4.15","versionEndExcluding":"5.10.226"},{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"4.15","versionEndExcluding":"5.15.167"},{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"4.15","versionEndExcluding":"6.1.109"},{"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/a72d4996409569027b4609414a14a87679b12267"},{"url":"https://git.kernel.org/stable/c/7c47dd2e92341f2989ab73dbed07f8894593ad7b"},{"url":"https://git.kernel.org/stable/c/c4a7f7c0062fe2c73f70bb7e335199e25bd71492"},{"url":"https://git.kernel.org/stable/c/b36e9b3104c4ba0f2f5dd083dcf6159cb316c996"},{"url":"https://git.kernel.org/stable/c/21f9cb44f8c60bf6c26487d428b1a09ad3e8aebf"},{"url":"https://git.kernel.org/stable/c/6a4a08e45e614cfa7a56498cdfaeb7fae2f07fa0"},{"url":"https://git.kernel.org/stable/c/b38a4815f79b87efb196cd5121579fc51e29a7fb"}],"title":"drm/amd/display: Check num_valid_sets before accessing reader_wm_sets[]","x_generator":{"engine":"bippy-1.2.0"}},"adp":[{"metrics":[{"other":{"type":"ssvc","content":{"timestamp":"2024-09-29T14:18:10.423569Z","id":"CVE-2024-46815","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":"2024-09-29T14:18:21.693Z"}},{"title":"CVE Program Container","references":[{"url":"https://lists.debian.org/debian-lts-announce/2025/01/msg00001.html"},{"url":"https://lists.debian.org/debian-lts-announce/2024/10/msg00003.html"}],"providerMetadata":{"orgId":"af854a3a-2127-422b-91ae-364da2661108","shortName":"CVE","dateUpdated":"2025-11-03T22:18:59.251Z"}}]}}