{"id":"CVE-2026-97589","title":"In the Linux kernel, the following vulnerability has been resolved:\n\ns390/crypto: Fix wrong return code to engine in asynch callbacks\n\nWhen crypto_finalize_hash_request() or\ncrypto_finalize_skcipher_request() explicitly completes a reque…","summary":"In the Linux kernel, the following vulnerability has been resolved:\n\ns390/crypto: Fix wrong return code to engine in asynch callbacks\n\nWhen crypto_finalize_hash_request() or\ncrypto_finalize_skcipher_request() explicitly completes a reque…","severity":"high","cvss":7,"cvssVector":"CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:H","vendor":"Linux","product":"Linux","affected":["Linux >= 6cd87cb5ef6ca50ae17c371482ceaab1d635e232 < 972e0d9b7d1d112240ccde1f1be85bf9ffaa1720","Linux >= 6cd87cb5ef6ca50ae17c371482ceaab1d635e232 < 5480291aa848e19e61175abfd457933516db70c6","Linux >= 6cd87cb5ef6ca50ae17c371482ceaab1d635e232 < ac1481320110b803ab9b79ab4d2ca11a74fc05f2","Linux 6.16"],"published":"2026-09-25","updated":"2026-09-25","sourceUpdated":"2026-09-25T15:18:00.547","source":"NVD","sourceUrl":"https://nvd.nist.gov/vuln/detail/CVE-2026-97589","references":[{"url":"https://git.kernel.org/stable/c/5480291aa848e19e61175abfd457933516db70c6","label":"416baaa9-dc9f-4396-8d5f-8c081fb06d67"},{"url":"https://git.kernel.org/stable/c/972e0d9b7d1d112240ccde1f1be85bf9ffaa1720","label":"416baaa9-dc9f-4396-8d5f-8c081fb06d67"},{"url":"https://git.kernel.org/stable/c/ac1481320110b803ab9b79ab4d2ca11a74fc05f2","label":"416baaa9-dc9f-4396-8d5f-8c081fb06d67"}],"tags":["nvd","cve.org"],"ingestedAt":"2026-09-25T11:06:38.906Z","slug":"CVE-2026-97589","body":"## Overview\n\nIn the Linux kernel, the following vulnerability has been resolved:\n\ns390/crypto: Fix wrong return code to engine in asynch callbacks\n\nWhen crypto_finalize_hash_request() or\ncrypto_finalize_skcipher_request() explicitly completes a request, the\ndo_one_request callback must return 0 to indicate successful\nhandling. Returning a negative error code causes the crypto engine to\nassume the driver failed to take ownership and triggers a second\ncompletion via crypto_request_complete(), resulting in a double\ncompletion. This pattern occurs in paes_s390.c 4 times and once in\nphmac_s390.c.\n\nFixed in phmac_do_one_request() and all four paes do_one_request\ncallbacks (ecb, cbc, ctr, xts) by returning 0 after explicit\nfinalization instead of propagating the error code.\n\n## Remediation\n\nRefer to the linked advisories for vendor-supplied fixes and affected version ranges.","depth":"twilight","depthScore":39,"depthScoreParts":{"impact":38.5,"likelihood":0,"exploitation":0,"ransomware":0},"changes":[{"seq":210978,"id":"CVE-2026-97589","ts":1790349120701,"field":"cvss","old":null,"new":"7"},{"seq":210977,"id":"CVE-2026-97589","ts":1790349120701,"field":"severity","old":"none","new":"high"}]}