{"id":"CVE-2026-98475","state":"PUBLISHED","title":"s390/cmf: Fix virtual vs physical address confusion","description":"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_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.","publishedAt":"2026-10-18T15:15:44.206Z","updatedAt":"2026-10-19T09:20:12.941Z","severity":null,"assigner":"Linux","products":["Linux Linux"],"affected":[{"vendor":"Linux","product":"Linux","defaultStatus":"unaffected","versions":[{"version":"14edd0d73bfef320fd5be11495687ba537aa6341","status":"affected","lessThan":"b11f369be31ea11c746833e4d3ad51dcd6b5fa2b","versionType":"git"},{"version":"14edd0d73bfef320fd5be11495687ba537aa6341","status":"affected","lessThan":"748ec2f7f5df9b4fc742546a8bfc8aa5d847353e","versionType":"git"},{"version":"14edd0d73bfef320fd5be11495687ba537aa6341","status":"affected","lessThan":"7f78226eb743b362f52b212d7763801642539d1c","versionType":"git"},{"version":"14edd0d73bfef320fd5be11495687ba537aa6341","status":"affected","lessThan":"f4d04425e66af2ecee9d1a49ae0484436f3c2fd1","versionType":"git"}],"repo":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git","programFiles":["drivers/s390/cio/cio.h","drivers/s390/cio/cmf.c"]},{"vendor":"Linux","product":"Linux","defaultStatus":"affected","versions":[{"version":"6.9","status":"affected"},{"version":"0","status":"unaffected","lessThan":"6.9","versionType":"semver"},{"version":"6.12.112","status":"unaffected","lessThanOrEqual":"6.12.*","versionType":"semver"},{"version":"6.18.55","status":"unaffected","lessThanOrEqual":"6.18.*","versionType":"semver"},{"version":"7.2.9","status":"unaffected","lessThanOrEqual":"7.2.*","versionType":"semver"},{"version":"7.3","status":"unaffected","lessThanOrEqual":"*","versionType":"original_commit_for_fix"}],"repo":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git","programFiles":["drivers/s390/cio/cio.h","drivers/s390/cio/cmf.c"]}],"references":["https://git.kernel.org/stable/c/b11f369be31ea11c746833e4d3ad51dcd6b5fa2b","https://git.kernel.org/stable/c/748ec2f7f5df9b4fc742546a8bfc8aa5d847353e","https://git.kernel.org/stable/c/7f78226eb743b362f52b212d7763801642539d1c","https://git.kernel.org/stable/c/f4d04425e66af2ecee9d1a49ae0484436f3c2fd1"],"weaknesses":[],"ingestedAt":"2026-10-29T20:13:43.249Z","source":{"repository":"CVEProject/cvelistV5","path":"cves/2026/98xxx/CVE-2026-98475.json","commit":"556c9d3a8cd17e218bb8e452ba7cd619a384ff47"},"raw":{"dataType":"CVE_RECORD","dataVersion":"5.2","cveMetadata":{"cveId":"CVE-2026-98475","state":"PUBLISHED","datePublished":"2026-10-18T15:15:44.206Z","dateUpdated":"2026-10-19T09:20:12.941Z","assignerShortName":"Linux","assignerOrgId":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","dateReserved":"2026-09-25T10:25:14.351Z"},"containers":{"cna":{"title":"s390/cmf: Fix virtual vs physical address confusion","descriptions":[{"lang":"en","value":"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_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."}],"affected":[{"vendor":"Linux","product":"Linux","defaultStatus":"unaffected","versions":[{"version":"14edd0d73bfef320fd5be11495687ba537aa6341","status":"affected","lessThan":"b11f369be31ea11c746833e4d3ad51dcd6b5fa2b","versionType":"git"},{"version":"14edd0d73bfef320fd5be11495687ba537aa6341","status":"affected","lessThan":"748ec2f7f5df9b4fc742546a8bfc8aa5d847353e","versionType":"git"},{"version":"14edd0d73bfef320fd5be11495687ba537aa6341","status":"affected","lessThan":"7f78226eb743b362f52b212d7763801642539d1c","versionType":"git"},{"version":"14edd0d73bfef320fd5be11495687ba537aa6341","status":"affected","lessThan":"f4d04425e66af2ecee9d1a49ae0484436f3c2fd1","versionType":"git"}],"repo":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git","programFiles":["drivers/s390/cio/cio.h","drivers/s390/cio/cmf.c"]},{"vendor":"Linux","product":"Linux","defaultStatus":"affected","versions":[{"version":"6.9","status":"affected"},{"version":"0","status":"unaffected","lessThan":"6.9","versionType":"semver"},{"version":"6.12.112","status":"unaffected","lessThanOrEqual":"6.12.*","versionType":"semver"},{"version":"6.18.55","status":"unaffected","lessThanOrEqual":"6.18.*","versionType":"semver"},{"version":"7.2.9","status":"unaffected","lessThanOrEqual":"7.2.*","versionType":"semver"},{"version":"7.3","status":"unaffected","lessThanOrEqual":"*","versionType":"original_commit_for_fix"}],"repo":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git","programFiles":["drivers/s390/cio/cio.h","drivers/s390/cio/cmf.c"]}],"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"}],"providerMetadata":{"shortName":"Linux","orgId":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","dateUpdated":"2026-10-19T09:20:12.941Z"},"cpeApplicability":[{"nodes":[{"operator":"OR","negate":false,"cpeMatch":[{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"6.9","versionEndExcluding":"6.12.112"},{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"6.9","versionEndExcluding":"6.18.55"},{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"6.9","versionEndExcluding":"7.2.9"},{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"6.9","versionEndExcluding":"7.3"}]}]}],"x_generator":{"engine":"bippy-1.2.0"}}}}}