← CVE Intelligence

CVE-2026-98387

s390/crypto: Fix skcipher_walk return code handling in aes_s390 PUBLISHED

Description (CNA)

In the Linux kernel, the following vulnerability has been resolved: s390/crypto: Fix skcipher_walk return code handling in aes_s390 The return codes from skcipher_walk_virt() were not properly checked before entering the processing loops in ecb_aes_crypt() and ctr_aes_crypt(). If skcipher_walk_virt() fails, the walk structure may be in an undefined state, and attempting to process data could lead to incorrect behavior or accessing uninitialized memory. Add proper return code checking to ensure correct handling of the walk initialization and walk advance and eventually return to the caller with that return code.

Affected (CNA)

Vendor / productVersions
Linux / Linuxaffected 7988fb2c03c8cf9936f851ab19a6d21b3c3411c0 before 89b58645646d1dac34162cc2597f42266bfbf930; affected 7988fb2c03c8cf9936f851ab19a6d21b3c3411c0 before 35c3f97569306050e818fa18e17fa97c358f0f28; affected 7988fb2c03c8cf9936f851ab19a6d21b3c3411c0 before aea3e1588f08e381a7a57b2bf1a60cc2347904cd; affected 7988fb2c03c8cf9936f851ab19a6d21b3c3411c0 before 15fa028589c3a2545f0bff355eff06d5844196bf
Linux / Linuxaffected 5.5; unaffected 0 before 5.5; unaffected 6.12.111 through 6.12.*; unaffected 6.18.53 through 6.18.*; unaffected 7.2.7 through 7.2.*; unaffected 7.3 through *

CWE

No CWE identifiers supplied.

References