{"id":"CVE-2022-49044","summary":"dm integrity: fix memory corruption when tag_size is less than digest size","details":"In the Linux kernel, the following vulnerability has been resolved:\n\ndm integrity: fix memory corruption when tag_size is less than digest size\n\nIt is possible to set up dm-integrity in such a way that the\n\"tag_size\" parameter is less than the actual digest size. In this\nsituation, a part of the digest beyond tag_size is ignored.\n\nIn this case, dm-integrity would write beyond the end of the\nic-\u003erecalc_tags array and corrupt memory. The corruption happened in\nintegrity_recalc-\u003eintegrity_sector_checksum-\u003ecrypto_shash_final.\n\nFix this corruption by increasing the tags array so that it has enough\npadding at the end to accomodate the loop in integrity_recalc() being\nable to write a full digest size for the last member of the tags\narray.","modified":"2026-04-02T08:27:14.749191Z","published":"2025-02-26T01:54:21.389Z","related":["SUSE-SU-2025:01600-1","SUSE-SU-2025:1027-1","SUSE-SU-2025:1176-1","SUSE-SU-2025:1183-1","SUSE-SU-2025:1194-1","SUSE-SU-2025:1241-1","SUSE-SU-2025:1263-1"],"database_specific":{"cna_assigner":"Linux","osv_generated_from":"https://github.com/CVEProject/cvelistV5/tree/main/cves/2022/49xxx/CVE-2022-49044.json"},"references":[{"type":"WEB","url":"https://git.kernel.org/stable/c/08c1af8f1c13bbf210f1760132f4df24d0ed46d6"},{"type":"WEB","url":"https://git.kernel.org/stable/c/4d485cf9b609709e45d5113e6e2b1b01254b2fe9"},{"type":"WEB","url":"https://git.kernel.org/stable/c/6a95d91c0b315c965198f6ab7dec7c94129e17e0"},{"type":"WEB","url":"https://git.kernel.org/stable/c/6b4bf97587ef6c1927a78934b700204920655123"},{"type":"WEB","url":"https://git.kernel.org/stable/c/7f84c937222944c03f4615ca4742df6bed0e5adf"},{"type":"WEB","url":"https://git.kernel.org/stable/c/cd02b2687d66f0a8e716384de4b9a0671331f1dc"},{"type":"ADVISORY","url":"https://github.com/CVEProject/cvelistV5/tree/main/cves/2022/49xxx/CVE-2022-49044.json"},{"type":"ADVISORY","url":"https://nvd.nist.gov/vuln/detail/CVE-2022-49044"},{"type":"PACKAGE","url":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git"}],"affected":[{"ranges":[{"type":"GIT","repo":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git","events":[{"introduced":"7eada909bfd7ac90a4522e56aa3179d1fd68cd14"},{"fixed":"6a95d91c0b315c965198f6ab7dec7c94129e17e0"},{"fixed":"7f84c937222944c03f4615ca4742df6bed0e5adf"},{"fixed":"cd02b2687d66f0a8e716384de4b9a0671331f1dc"},{"fixed":"6b4bf97587ef6c1927a78934b700204920655123"},{"fixed":"4d485cf9b609709e45d5113e6e2b1b01254b2fe9"},{"fixed":"08c1af8f1c13bbf210f1760132f4df24d0ed46d6"}]}],"database_specific":{"source":"https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2022-49044.json"}}],"schema_version":"1.7.5"}