CVE-2026-64369

In the Linux kernel, the following vulnerability has been resolved: s390: Revert support for DCACHE_WORD_ACCESS load_unaligned_zeropad() reads eight bytes from unaligned addresses and may cross page boundaries. It handles exceptions which may happen if reading from the second page results in an exception. For pages which are donated to the Ultravisor for secure execution purposes the do_secure_storage_access() exception handler however does not handle such exceptions correctly. Such an exception may result in an endless exception loop which will never be resolved. An attempt to fix this [1] turned out to be not sufficient. For now revert load_unaligned_zeropad() until this problem has been resolved in a proper way. Note that the implementation of load_unaligned_zeropad() itself is correct. The revert is just a temporary workaround until there is complete fix for secure storage access exceptions. [1] commit b00be77302d7 ("s390/mm: Add missing secure storage access fixups for donated memory")

• CWE-835

• https://git.kernel.org/stable/c/37540b8c287fc817bdbd0c62bb75ad6eab0e5d03Patch
• https://git.kernel.org/stable/c/be79d285bea70d0edd5015bd487311bfa8cbebc9Patch
• https://git.kernel.org/stable/c/c94806905e02cc8e17a69c822d93c41743b7ffc5Patch
• https://git.kernel.org/stable/c/c9e0f1517631ac08987f8385817119bccf2f1f12Patch

Published

Jul 25, 2026

Last Modified

Sep 8, 2026

Status

Analyzed

• How Strix found a critical auth bypass in etcdStrix autonomously discovered a critical authentication bypass in etcd, later designated CVE-2026-33413.
• Autonomous PentestingAI agents that find and validate exploitable vulnerabilities like this one across your applications.
• PR ReviewsPentest every pull request so vulnerable code is caught before it ships to production.
• AI Penetration TestingHow AI-driven penetration testing continuously covers your attack surface.

• CVE-2026-64363In the Linux kernel, the following vulnerability has been re…7.8
• CVE-2026-64364In the Linux kernel, the following vulnerability has been re…8.8
• CVE-2026-64365In the Linux kernel, the following vulnerability has been re…7.8
• CVE-2026-64366In the Linux kernel, the following vulnerability has been re…8.8
• CVE-2026-64367In the Linux kernel, the following vulnerability has been re…7.8
• CVE-2026-64368In the Linux kernel, the following vulnerability has been re…8.1
• CVE-2026-6437Improper neutralization of argument delimiters in the volume…6.9
• CVE-2026-64370In the Linux kernel, the following vulnerability has been re…5.5
• CVE-2026-64371In the Linux kernel, the following vulnerability has been re…5.5
• CVE-2026-64372In the Linux kernel, the following vulnerability has been re…7.8
• CVE-2026-64373In the Linux kernel, the following vulnerability has been re…4.7
• CVE-2026-64374In the Linux kernel, the following vulnerability has been re…7.5