Answer in brief
CVE-2026-98387 records a Unknown severity vulnerability in s390/crypto: Fix skcipher_walk return code handling in aes_s390. The current sources do not mark it as known exploited. The current feed maps Linux/Linux (generic), Linux/Linux (generic). Check affected ranges and fixed versions before updating.
Analysis pending evidence review
HOL Guard separates source facts from reviewed analysis. See the methodology.
A CVSS score is not reported in the current record. The current sources do not mark it as known exploited. Treat this as a source-backed prioritization signal, not a statement about your environment.
Analysis status
Analysis pending evidence review
Factual feed record only; HOL analysis is not approved for indexing. Read the methodology.
The current feed maps Linux/Linux (generic), Linux/Linux (generic). Check affected ranges and fixed versions before updating.
| Package | Affected range | Fixed version |
|---|---|---|
| Linux/Linuxgeneric | >=7988fb2c03c8cf9936f851ab19a6d21b3c3411c0 <89b58645646d1dac34162cc2597f42266bfbf930 || >=7988fb2c03c8cf9936f851ab19a6d21b3c3411c0 <35c3f97569306050e818fa18e17fa97c358f0f28 || >=7988fb2c03c8cf9936f851ab19a6d21b3c3411c0 <aea3e1588f08e381a7a57b2bf1a60cc2347904cd || >=7988fb2c03c8cf9936f851ab19a6d21b3c3411c0 <15fa028589c3a2545f0bff355eff06d5844196bf | 89b58645646d1dac34162cc2597f42266bfbf930, 35c3f97569306050e818fa18e17fa97c358f0f28, aea3e1588f08e381a7a57b2bf1a60cc2347904cd, 15fa028589c3a2545f0bff355eff06d5844196bf |
| Linux/Linuxgeneric | 5.5 | Not reported |
Published upstream
Oct 14, 2026
Evidence: source:cvelist:source_dates:source-dates:recordSource modified
Oct 14, 2026
Evidence: source:cvelist:source_dates:source-dates:recordFirst seen by HOL
Oct 14, 2026
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.
Quoted source text, attributed separately from HOL analysis.