{"cve":"CVE-2026-98387","nvd":{"published":"2026-10-14T14:17:49.510","modified":"2026-10-19T10:18:42.043","status":"Received","description":"In the Linux kernel, the following vulnerability has been resolved:\n\ns390/crypto: Fix skcipher_walk return code handling in aes_s390\n\nThe return codes from skcipher_walk_virt() were not properly checked\nbefore entering the processing loops in ecb_aes_crypt() and ctr_aes_crypt().\nIf skcipher_walk_virt() fails, the walk structure may be in an undefined\nstate, and attempting to process data could lead to incorrect behavior\nor accessing uninitialized memory.\n\nAdd proper return code checking to ensure correct handling of the walk\ninitialization and walk advance and eventually return to the caller\nwith that return code.","cvss_v4":null,"cvss_v3":null,"cwes":[],"references":["https://git.kernel.org/stable/c/15fa028589c3a2545f0bff355eff06d5844196bf","https://git.kernel.org/stable/c/35c3f97569306050e818fa18e17fa97c358f0f28","https://git.kernel.org/stable/c/89b58645646d1dac34162cc2597f42266bfbf930","https://git.kernel.org/stable/c/aea3e1588f08e381a7a57b2bf1a60cc2347904cd"],"products":[],"source":"nvd","synced_at":"2026-10-19T22:59:28.494260111+00:00"},"epss":{"cve":"CVE-2026-98387","score":0.002,"percentile":0.09756,"date":"2026-10-25"},"kev":null,"osv":[],"attribution":["This product uses the NVD API but is not endorsed or certified by the NVD.","EPSS scores: FIRST Exploit Prediction Scoring System, https://www.first.org/epss","Known exploited vulnerabilities: CISA Known Exploited Vulnerabilities Catalog, https://www.cisa.gov/known-exploited-vulnerabilities-catalog","Package advisories: OSV (https://osv.dev), from the GitHub Advisory Database, PyPA, Go, RustSec and other ecosystem databases, under CC-BY 4.0 or CC0","CVE records: the CVE Program's CVE List (https://www.cve.org), under its terms of use (https://www.cve.org/Legal/TermsOfUse). CVE is a registered trademark of The MITRE Corporation; this product is not affiliated with the CVE Program."]}