{"id":"CVE-2026-98475","title":"s390/cmf: Fix virtual vs physical address confusion","summary":"In the Linux kernel, the following vulnerability has been resolved:\n\ns390/cmf: Fix virtual vs physical address confusion\n\nThe measurement block address is an absolute address. Define the\nassociated schib_config and schib fields as dma64_…","severity":"none","vendor":"Linux","product":"Linux","affected":["Linux >= 14edd0d73bfef320fd5be11495687ba537aa6341 < b11f369be31ea11c746833e4d3ad51dcd6b5fa2b","Linux >= 14edd0d73bfef320fd5be11495687ba537aa6341 < 748ec2f7f5df9b4fc742546a8bfc8aa5d847353e","Linux >= 14edd0d73bfef320fd5be11495687ba537aa6341 < 7f78226eb743b362f52b212d7763801642539d1c","Linux >= 14edd0d73bfef320fd5be11495687ba537aa6341 < f4d04425e66af2ecee9d1a49ae0484436f3c2fd1","Linux 6.9"],"published":"2026-10-18","updated":"2026-10-18","sourceUpdated":"2026-10-18T15:15:44.206Z","source":"CVEORG","sourceUrl":"https://www.cve.org/CVERecord?id=CVE-2026-98475","references":[{"url":"https://git.kernel.org/stable/c/b11f369be31ea11c746833e4d3ad51dcd6b5fa2b"},{"url":"https://git.kernel.org/stable/c/748ec2f7f5df9b4fc742546a8bfc8aa5d847353e"},{"url":"https://git.kernel.org/stable/c/7f78226eb743b362f52b212d7763801642539d1c"},{"url":"https://git.kernel.org/stable/c/f4d04425e66af2ecee9d1a49ae0484436f3c2fd1"}],"tags":["cve.org"],"ingestedAt":"2026-10-18T15:45:12.296Z","slug":"CVE-2026-98475","body":"## Overview\n\nIn the Linux kernel, the following vulnerability has been resolved:\n\ns390/cmf: Fix virtual vs physical address confusion\n\nThe measurement block address is an absolute address. Define the\nassociated schib_config and schib fields as dma64_t to enable automatic\ndetection of incorrect assignments. Also add the missing virt_to_dma64()\ntranslation.\n\nWithout this fix, a wrong address will be used by firmware when storing\nextended format channel measurement data on kernels built with\nCONFIG_RANDOMIZE_IDENTITY_BASE=y.\n\n## Affected\n\n- `Linux >= 14edd0d73bfef320fd5be11495687ba537aa6341 < b11f369be31ea11c746833e4d3ad51dcd6b5fa2b`\n- `Linux >= 14edd0d73bfef320fd5be11495687ba537aa6341 < 748ec2f7f5df9b4fc742546a8bfc8aa5d847353e`\n- `Linux >= 14edd0d73bfef320fd5be11495687ba537aa6341 < 7f78226eb743b362f52b212d7763801642539d1c`\n- `Linux >= 14edd0d73bfef320fd5be11495687ba537aa6341 < f4d04425e66af2ecee9d1a49ae0484436f3c2fd1`\n- `Linux 6.9`\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":[]}