{"id":"CVE-2025-40019","state":"PUBLISHED","title":"crypto: essiv - Check ssize for decryption and in-place encryption","description":"In the Linux kernel, the following vulnerability has been resolved:\n\ncrypto: essiv - Check ssize for decryption and in-place encryption\n\nMove the ssize check to the start in essiv_aead_crypt so that\nit's also checked for decryption and in-place encryption.","publishedAt":"2025-10-24T11:44:29.864Z","updatedAt":"2026-05-11T21:40:54.499Z","severity":null,"assigner":"Linux","products":["Linux Linux"],"affected":[{"vendor":"Linux","product":"Linux","defaultStatus":"unaffected","versions":[{"version":"be1eb7f78aa8fbe34779c56c266ccd0364604e71","status":"affected","lessThan":"29294dd6f1e7acf527255fb136ffde6602c3a129","versionType":"git"},{"version":"be1eb7f78aa8fbe34779c56c266ccd0364604e71","status":"affected","lessThan":"71f03f8f72d9c70ffba76980e78b38c180e61589","versionType":"git"},{"version":"be1eb7f78aa8fbe34779c56c266ccd0364604e71","status":"affected","lessThan":"df58651968f82344a0ed2afdafd20ecfc55ff548","versionType":"git"},{"version":"be1eb7f78aa8fbe34779c56c266ccd0364604e71","status":"affected","lessThan":"248ff2797ff52a8cbf86507f9583437443bf7685","versionType":"git"},{"version":"be1eb7f78aa8fbe34779c56c266ccd0364604e71","status":"affected","lessThan":"f37e7860dc5e94c70b4a3e38a5809181310ea9ac","versionType":"git"},{"version":"be1eb7f78aa8fbe34779c56c266ccd0364604e71","status":"affected","lessThan":"dc4c854a5e7453c465fa73b153eba4ef2a240abe","versionType":"git"},{"version":"be1eb7f78aa8fbe34779c56c266ccd0364604e71","status":"affected","lessThan":"da7afb01ba05577ba3629f7f4824205550644986","versionType":"git"},{"version":"be1eb7f78aa8fbe34779c56c266ccd0364604e71","status":"affected","lessThan":"6bb73db6948c2de23e407fe1b7ef94bf02b7529f","versionType":"git"}],"repo":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git","programFiles":["crypto/essiv.c"]},{"vendor":"Linux","product":"Linux","defaultStatus":"affected","versions":[{"version":"5.4","status":"affected"},{"version":"0","status":"unaffected","lessThan":"5.4","versionType":"semver"},{"version":"5.4.301","status":"unaffected","lessThanOrEqual":"5.4.*","versionType":"semver"},{"version":"5.10.246","status":"unaffected","lessThanOrEqual":"5.10.*","versionType":"semver"},{"version":"5.15.195","status":"unaffected","lessThanOrEqual":"5.15.*","versionType":"semver"},{"version":"6.1.157","status":"unaffected","lessThanOrEqual":"6.1.*","versionType":"semver"},{"version":"6.6.113","status":"unaffected","lessThanOrEqual":"6.6.*","versionType":"semver"},{"version":"6.12.54","status":"unaffected","lessThanOrEqual":"6.12.*","versionType":"semver"},{"version":"6.17.4","status":"unaffected","lessThanOrEqual":"6.17.*","versionType":"semver"},{"version":"6.18","status":"unaffected","lessThanOrEqual":"*","versionType":"original_commit_for_fix"}],"repo":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git","programFiles":["crypto/essiv.c"]}],"references":["https://git.kernel.org/stable/c/29294dd6f1e7acf527255fb136ffde6602c3a129","https://git.kernel.org/stable/c/71f03f8f72d9c70ffba76980e78b38c180e61589","https://git.kernel.org/stable/c/df58651968f82344a0ed2afdafd20ecfc55ff548","https://git.kernel.org/stable/c/248ff2797ff52a8cbf86507f9583437443bf7685","https://git.kernel.org/stable/c/f37e7860dc5e94c70b4a3e38a5809181310ea9ac","https://git.kernel.org/stable/c/dc4c854a5e7453c465fa73b153eba4ef2a240abe","https://git.kernel.org/stable/c/da7afb01ba05577ba3629f7f4824205550644986","https://git.kernel.org/stable/c/6bb73db6948c2de23e407fe1b7ef94bf02b7529f"],"weaknesses":[],"ingestedAt":"2026-10-29T20:09:09.358Z","source":{"repository":"CVEProject/cvelistV5","path":"cves/2025/40xxx/CVE-2025-40019.json","commit":"556c9d3a8cd17e218bb8e452ba7cd619a384ff47"},"raw":{"dataType":"CVE_RECORD","dataVersion":"5.2","cveMetadata":{"cveId":"CVE-2025-40019","state":"PUBLISHED","datePublished":"2025-10-24T11:44:29.864Z","dateUpdated":"2026-05-11T21:40:54.499Z","assignerShortName":"Linux","assignerOrgId":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","dateReserved":"2025-04-16T07:20:57.152Z"},"containers":{"cna":{"title":"crypto: essiv - 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