{ "dataType": "CVE_RECORD", "dataVersion": "5.2", "cveMetadata": { "cveId": "CVE-2024-49969", "assignerOrgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "state": "PUBLISHED", "assignerShortName": "Linux", "dateReserved": "2024-10-21T12:17:06.051Z", "datePublished": "2024-10-21T18:02:19.044Z", "dateUpdated": "2026-08-05T11:40:46.161Z" }, "containers": { "cna": { "providerMetadata": { "orgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "shortName": "Linux", "dateUpdated": "2026-08-05T11:40:46.161Z" }, "descriptions": [ { "lang": "en", "value": "In the Linux kernel, the following vulnerability has been resolved:\n\ndrm/amd/display: Fix index out of bounds in DCN30 color transformation\n\nThis commit addresses a potential index out of bounds issue in the\n`cm3_helper_translate_curve_to_hw_format` function in the DCN30 color\nmanagement module. The issue could occur when the index 'i' exceeds the\nnumber of transfer function points (TRANSFER_FUNC_POINTS).\n\nThe fix adds a check to ensure 'i' is within bounds before accessing the\ntransfer function points. If 'i' is out of bounds, the function returns\nfalse to indicate an error.\n\ndrivers/gpu/drm/amd/amdgpu/../display/dc/dcn30/dcn30_cm_common.c:180 cm3_helper_translate_curve_to_hw_format() error: buffer overflow 'output_tf->tf_pts.red' 1025 <= s32max\ndrivers/gpu/drm/amd/amdgpu/../display/dc/dcn30/dcn30_cm_common.c:181 cm3_helper_translate_curve_to_hw_format() error: buffer overflow 'output_tf->tf_pts.green' 1025 <= s32max\ndrivers/gpu/drm/amd/amdgpu/../display/dc/dcn30/dcn30_cm_common.c:182 cm3_helper_translate_curve_to_hw_format() error: buffer overflow 'output_tf->tf_pts.blue' 1025 <= s32max" } ], "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 vulnerable code is only reached through local DRM ioctls (`DRM_IOCTL_MODE_ATOMIC` / legacy gamma set) on `/dev/dri/card*`, driven by amdgpu_dm color-management properties. No remote peer or network data reaches `cm3_helper_translate_curve_to_hw_format`.\nAC:L - Triggering is fully deterministic and entirely attacker-driven: attach a degamma/shaper/blend LUT blob plus a transfer-function enum to a plane or CRTC and commit, and the driver unconditionally walks the loop. There is no race, timing window, or memory-layout precondition outside the attacker's control.\nPR:L - Only an unprivileged local user with DRM master on the card node is required — the normal state for the logged-in session's compositor or any process on the active VT — not real root. Setting the AMD plane degamma/shaper/blend TF and LUT properties needs no capability beyond that.\nUI:N - The attacker performs the property set and the atomic commit itself in a single sequence. No victim action, mount, or cooperating process is needed.\nS:U - The faulting access occurs in kernel context on the same host and affects only kernel/GPU-driver resources within the same security authority. No VM, IOMMU, or sandbox boundary is crossed.\nC:H - The flagged access is an out-of-bounds read of `output_tf->tf_pts.red/green/blue[]` with an index the compiler and smatch cannot bound (`1025 <= s32max`), so it is not a strictly bounded few-byte read. Kernel memory past the 1025-entry arrays is copied into `rgb_resulted[]` and programmed into the display pipeline's LUT registers.\nI:H - Out-of-range `struct fixed31_32` values sourced from adjacent kernel memory are propagated into `lut_params`/`pwl_params` and written into GPU gamut/gamma hardware registers, corrupting driver and hardware state with data the caller never validated. Consistent with the sibling amd/display index-check fixes (CVE-2024-56784, CVE-2024-56608), this class of unchecked array indexing is treated as memory corruption.\nA:H - An unbounded index into the transfer-function point arrays dereferences memory that may be unmapped, producing a kernel oops inside the atomic-commit path while display-pipeline locks are held, which wedges modesetting and panics the box under `panic_on_oops`." } ] } ], "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/dcn30/dcn30_cm_common.c" ], "versions": [ { "version": "03f54d7d3448dc1668568d1adb69b43c1d1dc79f", "lessThan": "7ab69af56a23859b647dee69fa1052c689343621", "status": "affected", "versionType": "git" }, { "version": "03f54d7d3448dc1668568d1adb69b43c1d1dc79f", "lessThan": "c13f9c62015c56a938304cef6d507227ea3e0039", "status": "affected", "versionType": "git" }, { "version": "03f54d7d3448dc1668568d1adb69b43c1d1dc79f", "lessThan": "0f1e222a4b41d77c442901d166fbdca967af0d86", "status": "affected", "versionType": "git" }, { "version": "03f54d7d3448dc1668568d1adb69b43c1d1dc79f", "lessThan": "929506d5671419cffd8d01e9a7f5eae53682a838", "status": "affected", "versionType": "git" }, { "version": "03f54d7d3448dc1668568d1adb69b43c1d1dc79f", "lessThan": "578422ddae3d13362b64e77ef9bab98780641631", "status": "affected", "versionType": "git" }, { "version": "03f54d7d3448dc1668568d1adb69b43c1d1dc79f", "lessThan": "b9d8b94ec7e67f0cae228c054f77b73967c389a3", "status": "affected", "versionType": "git" }, { "version": "03f54d7d3448dc1668568d1adb69b43c1d1dc79f", "lessThan": "d81873f9e715b72d4f8d391c8eb243946f784dfc", "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/dcn30/dcn30_cm_common.c" ], "versions": [ { "version": "5.9", "status": "affected" }, { "version": "0", "lessThan": "5.9", "status": "unaffected", "versionType": "semver" }, { "version": "5.10.227", "lessThanOrEqual": "5.10.*", "status": "unaffected", "versionType": "semver" }, { "version": "5.15.168", "lessThanOrEqual": "5.15.*", "status": "unaffected", "versionType": "semver" }, { "version": "6.1.113", "lessThanOrEqual": "6.1.*", "status": "unaffected", "versionType": "semver" }, { "version": "6.6.55", "lessThanOrEqual": "6.6.*", "status": "unaffected", "versionType": "semver" }, { "version": "6.10.14", "lessThanOrEqual": "6.10.*", "status": "unaffected", "versionType": "semver" }, { "version": "6.11.3", "lessThanOrEqual": "6.11.*", "status": "unaffected", "versionType": "semver" }, { "version": "6.12", "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": "5.9", "versionEndExcluding": "5.10.227" }, { "vulnerable": true, "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "versionStartIncluding": "5.9", "versionEndExcluding": "5.15.168" }, { "vulnerable": true, "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "versionStartIncluding": "5.9", "versionEndExcluding": "6.1.113" }, { "vulnerable": true, "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "versionStartIncluding": "5.9", "versionEndExcluding": "6.6.55" }, { "vulnerable": true, "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "versionStartIncluding": "5.9", "versionEndExcluding": "6.10.14" }, { "vulnerable": true, "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "versionStartIncluding": "5.9", "versionEndExcluding": "6.11.3" }, { "vulnerable": true, "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "versionStartIncluding": "5.9", "versionEndExcluding": "6.12" } ] } ] } ], "references": [ { "url": "https://git.kernel.org/stable/c/7ab69af56a23859b647dee69fa1052c689343621" }, { "url": "https://git.kernel.org/stable/c/c13f9c62015c56a938304cef6d507227ea3e0039" }, { "url": "https://git.kernel.org/stable/c/0f1e222a4b41d77c442901d166fbdca967af0d86" }, { "url": "https://git.kernel.org/stable/c/929506d5671419cffd8d01e9a7f5eae53682a838" }, { "url": "https://git.kernel.org/stable/c/578422ddae3d13362b64e77ef9bab98780641631" }, { "url": "https://git.kernel.org/stable/c/b9d8b94ec7e67f0cae228c054f77b73967c389a3" }, { "url": "https://git.kernel.org/stable/c/d81873f9e715b72d4f8d391c8eb243946f784dfc" } ], "title": "drm/amd/display: Fix index out of bounds in DCN30 color transformation", "x_generator": { "engine": "bippy-1.2.0" } }, "adp": [ { "metrics": [ { "other": { "type": "ssvc", "content": { "id": "CVE-2024-49969", "role": "CISA Coordinator", 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