{"id":"CVE-2026-99098","aliases":[],"title":"dm-integrity: fix buffer overflow in inline mode with large tag size","titleSource":"Linux","descriptionSource":"Linux","products":[{"vendor":"Linux","name":"Linux","platforms":[],"versions":[{"version":"fb0987682c629c1d2c476f35f6fde405a5e304a4","status":"affected","lessThan":"3c7aad85aeb9e28386672e3a009aa2e61f751b86","versionType":"git"},{"version":"fb0987682c629c1d2c476f35f6fde405a5e304a4","status":"affected","lessThan":"4f0ee735dc68e3e6c4dd9a666d7f7047163c4165","versionType":"git"},{"version":"fb0987682c629c1d2c476f35f6fde405a5e304a4","status":"affected","lessThan":"f49cd7820cd0a96f20e1aa2708adb002124e38a7","versionType":"git"},{"version":"fb0987682c629c1d2c476f35f6fde405a5e304a4","status":"affected","lessThan":"764b683a6180fd72c931c13fea98d383506a3475","versionType":"git"}],"defaultStatus":"unaffected","source":"Linux","url":"https://www.cve.org/CVERecord?id=CVE-2026-99098"},{"vendor":"Linux","name":"Linux","platforms":[],"versions":[{"version":"6.11","status":"affected"},{"version":"0","status":"unaffected","lessThan":"6.11","versionType":"semver"},{"version":"6.12.114","status":"unaffected","lessThanOrEqual":"6.12.*","versionType":"semver"},{"version":"6.18.57","status":"unaffected","lessThanOrEqual":"6.18.*","versionType":"semver"},{"version":"7.2.11","status":"unaffected","lessThanOrEqual":"7.2.*","versionType":"semver"},{"version":"7.3","status":"unaffected","lessThanOrEqual":"*","versionType":"original_commit_for_fix"}],"defaultStatus":"affected","source":"Linux","url":"https://www.cve.org/CVERecord?id=CVE-2026-99098"}],"remediation":[],"description":"In the Linux kernel, the following vulnerability has been resolved:\n\ndm-integrity: fix buffer overflow in inline mode with large tag size\n\nIn inline mode, dm_integrity_check and dm_integrity_inline_recheck\ncompute the checksum of each block into an on-stack buffer of\nHASH_MAX_DIGESTSIZE bytes. integrity_sector_checksum pads its result\nwith zeroes up to the tag size, so if the tag size is larger than\nHASH_MAX_DIGESTSIZE, the padding runs past the end of the buffer. With\nCONFIG_STACKPROTECTOR the kernel panics in dm_integrity_check on the\nfirst read.\n\nEnlarge both buffers to hold MAX_TAG_SIZE bytes, as commit b93b6643e9b5\n(\"dm integrity: fix a crash with unusually large tag size\") did for\nintegrity_metadata.\n\nNote that this is not a security bug because the buffer overflow can only\nbe triggered by root.","severity":"unknown","score":null,"published":"2026-10-26T14:52:04.416Z","modified":"2026-10-26T14:52:04.416Z","withdrawn":false,"knownExploited":false,"affected":[],"references":["https://git.kernel.org/stable/c/3c7aad85aeb9e28386672e3a009aa2e61f751b86","https://git.kernel.org/stable/c/4f0ee735dc68e3e6c4dd9a666d7f7047163c4165","https://git.kernel.org/stable/c/f49cd7820cd0a96f20e1aa2708adb002124e38a7","https://git.kernel.org/stable/c/764b683a6180fd72c931c13fea98d383506a3475"],"sources":[{"name":"CVE","id":"CVE-2026-99098","modified":"2026-10-26T14:52:04.416Z","url":"https://www.cve.org/CVERecord?id=CVE-2026-99098"}],"assessments":[],"sourceAffected":[],"kev":{"status":"not-listed","checkedAt":"2026-10-29T03:10:35.950Z"},"coverage":[{"source":"NVD","status":"not-checked"},{"source":"GHSA","status":"not-checked"},{"source":"EUVD","status":"not-checked"},{"source":"EPSS","status":"not-checked"}],"evidence":[]}