CVE-2026-23007

In the Linux kernel, the following vulnerability has been resolved: block: zero non-PI portion of auto integrity buffer The auto-generated integrity buffer for writes needs to be fully initialized before being passed to the underlying block device, otherwise the uninitialized memory can be read back by userspace or anyone with physical access to the storage device. If protection information is generated, that portion of the integrity buffer is already initialized. The integrity data is also zeroed if PI generation is disabled via sysfs or the PI tuple size is 0. However, this misses the case where PI is generated and the PI tuple size is nonzero, but the metadata size is larger than the PI tuple. In this case, the remainder ("opaque") of the metadata is left uninitialized. Generalize the BLK_INTEGRITY_CSUM_NONE check to cover any case when the metadata is larger than just the PI tuple.

• CWE-908

• https://git.kernel.org/stable/c/ca22c566b89164f6e670af56ecc45f47ef3df819Patch
• https://git.kernel.org/stable/c/d6072557b90e0c557df319a56f4a9dc482706d2cPatch

Published

Jan 25, 2026

Last Modified

Jun 17, 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-2026-23001In the Linux kernel, the following vulnerability has been re…7.8
• CVE-2026-23002In the Linux kernel, the following vulnerability has been re…5.5
• CVE-2026-23003In the Linux kernel, the following vulnerability has been re…5.5
• CVE-2026-23004In the Linux kernel, the following vulnerability has been re…4.7
• CVE-2026-23005In the Linux kernel, the following vulnerability has been re…5.5
• CVE-2026-23006In the Linux kernel, the following vulnerability has been re…5.5
• CVE-2026-23008In the Linux kernel, the following vulnerability has been re…5.5
• CVE-2026-23009In the Linux kernel, the following vulnerability has been re…5.5
• CVE-2026-2301The Post Duplicator plugin for WordPress is vulnerable to un…4.3
• CVE-2026-23010In the Linux kernel, the following vulnerability has been re…7.8
• CVE-2026-23011In the Linux kernel, the following vulnerability has been re…5.5
• CVE-2026-23012In the Linux kernel, the following vulnerability has been re…7.8