s390/crypto: Fix skcipher_walk return code handling in aes_s390

MITRE NVD CVE.ORG JSON API

Summary

CVECVE-2026-98387
StatePUBLISHED
AssignerLinux
Source PriorityCVE Program / NVD first with legacy fallback
Published2026-10-14 14:17:49 UTC
Updated2026-10-14 14:17:49 UTC
DescriptionIn 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.

Vendor Declared Affected Products

SourceVendorProductVersionPlatforms
CNA Linux Linux affected 7988fb2c03c8cf9936f851ab19a6d21b3c3411c0 89b58645646d1dac34162cc2597f42266bfbf930 git Not specified
CNA Linux Linux affected 7988fb2c03c8cf9936f851ab19a6d21b3c3411c0 35c3f97569306050e818fa18e17fa97c358f0f28 git Not specified
CNA Linux Linux affected 7988fb2c03c8cf9936f851ab19a6d21b3c3411c0 aea3e1588f08e381a7a57b2bf1a60cc2347904cd git Not specified
CNA Linux Linux affected 7988fb2c03c8cf9936f851ab19a6d21b3c3411c0 15fa028589c3a2545f0bff355eff06d5844196bf git Not specified
CNA Linux Linux affected 5.5 Not specified
CNA Linux Linux unaffected 5.5 semver Not specified
CNA Linux Linux unaffected 6.12.111 6.12.* semver Not specified
CNA Linux Linux unaffected 6.18.53 6.18.* semver Not specified
CNA Linux Linux unaffected 7.2.7 7.2.* semver Not specified
CNA Linux Linux unaffected 7.3-rc3 * original_commit_for_fix Not specified

References

ReferenceSourceLinkTags
git.kernel.org/stable/c/aea3e1588f08e381a7a57b2bf1a60cc2347904cd 416baaa9-dc9f-4396-8d5f-8c081fb06d67 git.kernel.org
git.kernel.org/stable/c/35c3f97569306050e818fa18e17fa97c358f0f28 416baaa9-dc9f-4396-8d5f-8c081fb06d67 git.kernel.org
git.kernel.org/stable/c/89b58645646d1dac34162cc2597f42266bfbf930 416baaa9-dc9f-4396-8d5f-8c081fb06d67 git.kernel.org
git.kernel.org/stable/c/15fa028589c3a2545f0bff355eff06d5844196bf 416baaa9-dc9f-4396-8d5f-8c081fb06d67 git.kernel.org
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