{"id":"CVE-2026-53330","title":"drm/amd/display: Fix out-of-bounds read in dp_get_eq_aux_rd_interval()","summary":"In the Linux kernel, the following vulnerability has been resolved:\n\ndrm/amd/display: Fix out-of-bounds read in dp_get_eq_aux_rd_interval()\n\n[Why & How]\nThe aux_rd_interval array in struct dc_lttpr_caps is declared with\nMAX_REPEATER_CNT …","severity":"none","vendor":"Linux","product":"Linux","affected":["Linux >= 8e5100a575433cc185a2e224280fbd873b6692dd < a632474c793b7f2a9bbd3d8e3d0dd7d256989300","Linux >= 8e5100a575433cc185a2e224280fbd873b6692dd < 7c5f2d16a8f4464bf2a719ceb2316b8a6b87a3c0","Linux >= 8e5100a575433cc185a2e224280fbd873b6692dd < 454d3b3d499c18373f8960d31aea48338a3ca9e0","Linux >= 8e5100a575433cc185a2e224280fbd873b6692dd < dc1490927d79fe9621e29f4a4f5d7b5ccb6aea3e","Linux >= 8e5100a575433cc185a2e224280fbd873b6692dd < e8b4d37eba05141ee01794fc6b7f2da808cee83b","Linux 5.6"],"published":"2026-07-01","updated":"2026-10-21","sourceUpdated":"2026-10-21T12:42:32.704Z","source":"CVEORG","sourceUrl":"https://www.cve.org/CVERecord?id=CVE-2026-53330","references":[{"url":"https://git.kernel.org/stable/c/a632474c793b7f2a9bbd3d8e3d0dd7d256989300"},{"url":"https://git.kernel.org/stable/c/7c5f2d16a8f4464bf2a719ceb2316b8a6b87a3c0"},{"url":"https://git.kernel.org/stable/c/454d3b3d499c18373f8960d31aea48338a3ca9e0"},{"url":"https://git.kernel.org/stable/c/dc1490927d79fe9621e29f4a4f5d7b5ccb6aea3e"},{"url":"https://git.kernel.org/stable/c/e8b4d37eba05141ee01794fc6b7f2da808cee83b"}],"tags":["cve.org"],"epss":0.00131,"epssPercentile":0.02402,"ingestedAt":"2026-10-21T12:48:53.616Z","slug":"CVE-2026-53330","body":"## Overview\n\nIn the Linux kernel, the following vulnerability has been resolved:\n\ndrm/amd/display: Fix out-of-bounds read in dp_get_eq_aux_rd_interval()\n\n[Why & How]\nThe aux_rd_interval array in struct dc_lttpr_caps is declared with\nMAX_REPEATER_CNT - 1 (7) elements, indexed 0..6. However, the offset\nparameter passed to dp_get_eq_aux_rd_interval() can be as large as\nMAX_REPEATER_CNT (8) when a sink reports 8 LTTPR repeaters via DPCD.\nThis leads to an out-of-bounds read of aux_rd_interval[7] when offset\nis 8.\n\nFix this by growing aux_rd_interval to MAX_REPEATER_CNT elements to\naccommodate the full range of valid repeater counts defined by the DP\nspec.\n\n(cherry picked from commit a55a458a8df37a65ffda5cf721d554a8f74f6b04)\n\n## Affected\n\n- `Linux >= 8e5100a575433cc185a2e224280fbd873b6692dd < a632474c793b7f2a9bbd3d8e3d0dd7d256989300`\n- `Linux >= 8e5100a575433cc185a2e224280fbd873b6692dd < 7c5f2d16a8f4464bf2a719ceb2316b8a6b87a3c0`\n- `Linux >= 8e5100a575433cc185a2e224280fbd873b6692dd < 454d3b3d499c18373f8960d31aea48338a3ca9e0`\n- `Linux >= 8e5100a575433cc185a2e224280fbd873b6692dd < dc1490927d79fe9621e29f4a4f5d7b5ccb6aea3e`\n- `Linux >= 8e5100a575433cc185a2e224280fbd873b6692dd < e8b4d37eba05141ee01794fc6b7f2da808cee83b`\n- `Linux 5.6`\n\n## Remediation\n\nRefer to the linked advisories for vendor-supplied fixes and affected version ranges.","depth":"sunlit","depthScore":3,"depthScoreParts":{"impact":2.8,"likelihood":0,"exploitation":0,"ransomware":0},"changes":[]}