{"dataType":"CVE_RECORD","dataVersion":"5.1","cveMetadata":{"cveId":"CVE-2022-49044","assignerOrgId":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","state":"PUBLISHED","assignerShortName":"Linux","dateReserved":"2025-02-26T01:49:39.241Z","datePublished":"2025-02-26T01:54:21.389Z","dateUpdated":"2025-05-04T08:28:33.434Z"},"containers":{"cna":{"providerMetadata":{"orgId":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","shortName":"Linux","dateUpdated":"2025-05-04T08:28:33.434Z"},"descriptions":[{"lang":"en","value":"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->recalc_tags array and corrupt memory. The corruption happened in\nintegrity_recalc->integrity_sector_checksum->crypto_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."}],"affected":[{"product":"Linux","vendor":"Linux","defaultStatus":"unaffected","repo":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git","programFiles":["drivers/md/dm-integrity.c"],"versions":[{"version":"7eada909bfd7ac90a4522e56aa3179d1fd68cd14","lessThan":"6a95d91c0b315c965198f6ab7dec7c94129e17e0","status":"affected","versionType":"git"},{"version":"7eada909bfd7ac90a4522e56aa3179d1fd68cd14","lessThan":"7f84c937222944c03f4615ca4742df6bed0e5adf","status":"affected","versionType":"git"},{"version":"7eada909bfd7ac90a4522e56aa3179d1fd68cd14","lessThan":"cd02b2687d66f0a8e716384de4b9a0671331f1dc","status":"affected","versionType":"git"},{"version":"7eada909bfd7ac90a4522e56aa3179d1fd68cd14","lessThan":"6b4bf97587ef6c1927a78934b700204920655123","status":"affected","versionType":"git"},{"version":"7eada909bfd7ac90a4522e56aa3179d1fd68cd14","lessThan":"4d485cf9b609709e45d5113e6e2b1b01254b2fe9","status":"affected","versionType":"git"},{"version":"7eada909bfd7ac90a4522e56aa3179d1fd68cd14","lessThan":"08c1af8f1c13bbf210f1760132f4df24d0ed46d6","status":"affected","versionType":"git"}]},{"product":"Linux","vendor":"Linux","defaultStatus":"affected","repo":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git","programFiles":["drivers/md/dm-integrity.c"],"versions":[{"version":"4.12","status":"affected"},{"version":"0","lessThan":"4.12","status":"unaffected","versionType":"semver"},{"version":"4.19.240","lessThanOrEqual":"4.19.*","status":"unaffected","versionType":"semver"},{"version":"5.4.190","lessThanOrEqual":"5.4.*","status":"unaffected","versionType":"semver"},{"version":"5.10.112","lessThanOrEqual":"5.10.*","status":"unaffected","versionType":"semver"},{"version":"5.15.35","lessThanOrEqual":"5.15.*","status":"unaffected","versionType":"semver"},{"version":"5.17.4","lessThanOrEqual":"5.17.*","status":"unaffected","versionType":"semver"},{"version":"5.18","lessThanOrEqual":"*","status":"unaffected","versionType":"original_commit_for_fix"}]}],"cpeApplicability":[{"nodes":[{"operator":"OR","negate":false,"cpeMatch":[{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"4.12","versionEndExcluding":"4.19.240"},{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"4.12","versionEndExcluding":"5.4.190"},{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"4.12","versionEndExcluding":"5.10.112"},{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"4.12","versionEndExcluding":"5.15.35"},{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"4.12","versionEndExcluding":"5.17.4"},{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"4.12","versionEndExcluding":"5.18"}]}]}],"references":[{"url":"https://git.kernel.org/stable/c/6a95d91c0b315c965198f6ab7dec7c94129e17e0"},{"url":"https://git.kernel.org/stable/c/7f84c937222944c03f4615ca4742df6bed0e5adf"},{"url":"https://git.kernel.org/stable/c/cd02b2687d66f0a8e716384de4b9a0671331f1dc"},{"url":"https://git.kernel.org/stable/c/6b4bf97587ef6c1927a78934b700204920655123"},{"url":"https://git.kernel.org/stable/c/4d485cf9b609709e45d5113e6e2b1b01254b2fe9"},{"url":"https://git.kernel.org/stable/c/08c1af8f1c13bbf210f1760132f4df24d0ed46d6"}],"title":"dm integrity: fix memory corruption when tag_size is less than digest size","x_generator":{"engine":"bippy-1.2.0"}}}}