CVE-2026-43272

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