CVE-2026-68385
Description
AI Translation Available
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().
https://git.kernel.org/stable/c/1d9a2f01b3c4e5c88e06b2db4b5460c2ec884722
https://git.kernel.org/stable/c/4bb06b60d982355e22647b3d12d6619419f8c1fa
https://git.kernel.org/stable/c/5fc0a2a6eeb99cac991242bb48796c7749ce3261
https://git.kernel.org/stable/c/898bb2814f38399108bdd2113f38d97383a7036a