CVE-2026-43272

In the Linux kernel, the following vulnerability has been resolved: ring-buffer: Fix possible dereference of uninitialized pointer There is a pointer head_page in rb_meta_validate_events() which is not initialized at the beginning of a function. This pointer can be dereferenced if there is a failure during reader page validation. In this case the control is passed to "invalid" label where the pointer is dereferenced in a loop. To fix the issue initialize orig_head and head_page before calling rb_validate_buffer. Found by Linux Verification Center (linuxtesting.org) with SVACE.

• CWE-476

• https://git.kernel.org/stable/c/bc77986f3cb7476637052edf2d87137fa39f153dPatch
• https://git.kernel.org/stable/c/d9942396845fef2369478c157b26738fe07142f6Patch
• https://git.kernel.org/stable/c/f1547779402c4cd67755c33616b7203baa88420bPatch

Published

May 6, 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-2026-43266In the Linux kernel, the following vulnerability has been re…5.5
• CVE-2026-43267In the Linux kernel, the following vulnerability has been re…5.5
• CVE-2026-43268In the Linux kernel, the following vulnerability has been re…5.5
• CVE-2026-43269In the Linux kernel, the following vulnerability has been re…5.5
• CVE-2026-43270In the Linux kernel, the following vulnerability has been re…5.5
• CVE-2026-43271In the Linux kernel, the following vulnerability has been re…5.5
• CVE-2026-43273In the Linux kernel, the following vulnerability has been re…5.5
• CVE-2026-43274In the Linux kernel, the following vulnerability has been re…8.4
• CVE-2026-43275In the Linux kernel, the following vulnerability has been re…4.7
• CVE-2026-43276In the Linux kernel, the following vulnerability has been re…7.8
• CVE-2026-43277In the Linux kernel, the following vulnerability has been re…5.5
• CVE-2026-43278In the Linux kernel, the following vulnerability has been re…7.8