{"id":"CVE-2026-99146","title":"drm/i915/dmc: Add sanity check for DMC load address","summary":"In the Linux kernel, the following vulnerability has been resolved:\n\ndrm/i915/dmc: Add sanity check for DMC load address\n\nFor DMC firmware header version 3, the firmware load address is stored\nin dmc_info->start_mmioaddr and later used b…","severity":"none","vendor":"Linux","product":"Linux","affected":["Linux >= 3d5928a168a9546b23c6b3439c6158d7a028326c < ef82b4d5cb4a3fe77c7f99008d78b8c64709e258","Linux >= 3d5928a168a9546b23c6b3439c6158d7a028326c < 2fbd099b4e7c8c4ff70033c5bb950cdbb20838e2","Linux >= 3d5928a168a9546b23c6b3439c6158d7a028326c < 7dedc5bb11f95e96fe80757c924d8d9aa7327759","Linux 5.15"],"published":"2026-10-28","updated":"2026-10-28","sourceUpdated":"2026-10-28T10:35:02.847Z","source":"CVEORG","sourceUrl":"https://www.cve.org/CVERecord?id=CVE-2026-99146","references":[{"url":"https://git.kernel.org/stable/c/ef82b4d5cb4a3fe77c7f99008d78b8c64709e258"},{"url":"https://git.kernel.org/stable/c/2fbd099b4e7c8c4ff70033c5bb950cdbb20838e2"},{"url":"https://git.kernel.org/stable/c/7dedc5bb11f95e96fe80757c924d8d9aa7327759"}],"tags":["cve.org"],"ingestedAt":"2026-10-28T11:09:40.412Z","slug":"CVE-2026-99146","body":"## Overview\n\nIn the Linux kernel, the following vulnerability has been resolved:\n\ndrm/i915/dmc: Add sanity check for DMC load address\n\nFor DMC firmware header version 3, the firmware load address is stored\nin dmc_info->start_mmioaddr and later used by dmc_load_program().\n\nUnlike the MMIO address table, the firmware load address is not\nvalidated. Add a sanity check to ensure it is within the valid range.\n\nBSpec: 69671, 68378\n(cherry picked from commit 5e47ee5c76ca9becde8df4ad5202845b7ffcbc4c)\n\n## Affected\n\n- `Linux >= 3d5928a168a9546b23c6b3439c6158d7a028326c < ef82b4d5cb4a3fe77c7f99008d78b8c64709e258`\n- `Linux >= 3d5928a168a9546b23c6b3439c6158d7a028326c < 2fbd099b4e7c8c4ff70033c5bb950cdbb20838e2`\n- `Linux >= 3d5928a168a9546b23c6b3439c6158d7a028326c < 7dedc5bb11f95e96fe80757c924d8d9aa7327759`\n- `Linux 5.15`\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":[]}