{"id":"CVE-2026-99098","published":"2026-10-26T15:16:48.870","lastModified":"2026-10-26T15:16:48.870","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.","cvssScore":null,"cvssSeverity":null,"cvssVector":null,"cwes":[],"vendors":[],"products":[],"references":[{"url":"https://git.kernel.org/stable/c/3c7aad85aeb9e28386672e3a009aa2e61f751b86","tags":[]},{"url":"https://git.kernel.org/stable/c/4f0ee735dc68e3e6c4dd9a666d7f7047163c4165","tags":[]},{"url":"https://git.kernel.org/stable/c/764b683a6180fd72c931c13fea98d383506a3475","tags":[]},{"url":"https://git.kernel.org/stable/c/f49cd7820cd0a96f20e1aa2708adb002124e38a7","tags":[]}],"exploitRefs":[],"hasPoc":false,"ai":null}