Linux Kernel Vulnerability in RISC-V Ptrace Affecting Core Dump Functionality

CVE-2026-53351

What is CVE-2026-53351?

A vulnerability has been identified in the Linux kernel's handling of ptrace for RISC-V architecture. This issue occurs during core dump operations, specifically related to the USER_REGSET_NOTE_TYPE not being used correctly for REGSET_CFI. As a result, it triggers a warning in the core dump process. The malfunction has been documented with specific warnings appearing in logs, such as '[!note_name] fs/binfmt_elf.c:1771 at elf_core_dump+0x910/0xf68'. This vulnerability can impact the reliability of core dump functionalities, posing potential challenges for system stability and debugging.

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