CVE-2026-68385Critical· 9.8▾ MidnightIn 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 facil…
▾ Midnight zone — Critical, or high with PoC / in-the-wild
impact 53.9 · likelihood 0.1 · exploitation 0
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Stakeholder-Specific Vulnerability Categorization from CISA's ADP record at CVE.org: whether exploitation is observed, whether an attack can be automated, and how much of the system is at stake. The CVSS score shown above comes from the assigning CNA record, not NVD.
Exploit-prediction probability, daily snapshots since Oct 16.
Disclosure to exploitation, from the record and what we observed since indexing it.
Disclosed via CVEORG
0.5%
Last analysed / modified upstream
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().
Linux >= dcd3e1de9d17dc43dfed87a9fc814b9dec508043 < 5fc0a2a6eeb99cac991242bb48796c7749ce3261Linux >= dcd3e1de9d17dc43dfed87a9fc814b9dec508043 < 1d9a2f01b3c4e5c88e06b2db4b5460c2ec884722Linux >= dcd3e1de9d17dc43dfed87a9fc814b9dec508043 < 898bb2814f38399108bdd2113f38d97383a7036aLinux >= dcd3e1de9d17dc43dfed87a9fc814b9dec508043 < 4bb06b60d982355e22647b3d12d6619419f8c1faLinux 6.9Refer to the linked advisories for vendor-supplied fixes and affected version ranges.
Connected by shared product, vendor, weakness, or advisory.
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