CVE-2026-68385

In the Linux kernel, the following vulnerability has been resolved: s390/checksum: Fix csum_partial() without vector facility Currently csum_partial() calls csum_copy() with copy=false and dst=NULL. On machines without the vector facility, csum_copy() falls back to cksm(dst, ...), causing the checksum to be calculated from address zero instead of the source buffer. The VX implementation already checksums data loaded from src. Make the fallback do the same by passing src to cksm().

Published 10 Aug 2026, 13:20 UTC Last modified 10 Aug 2026, 13:20 UTC

Attack profile

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Attack vector Not assessed

Attack complexity Not assessed

Privileges required Not assessed

User interaction Not assessed

Scope Not assessed

Confidentiality Not assessed

Integrity Not assessed

Availability Not assessed

Affected products

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NVD has not published structured affected-product data for this record.

Weakness classification

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Weakness classification is still awaiting analysis.

Source references

External advisories, patches and technical reports attached to this CVE record.

NVD National Vulnerability Database recordnvd.nist.gov 01 Technical reference 416baaa9-dc9f-4396-8d5f-8c081fb06d67 02 Technical reference 416baaa9-dc9f-4396-8d5f-8c081fb06d67 03 Technical reference 416baaa9-dc9f-4396-8d5f-8c081fb06d67 04 Technical reference 416baaa9-dc9f-4396-8d5f-8c081fb06d67