CVE-2025-37822 Information

Description

In the Linux kernel the following vulnerability has been resolved:

riscv: uprobes: Add missing fence.i after building the XOL buffer

The XOL (execute out-of-line) buffer is used to single-step the replaced instruction(s) for uprobes. The RISC-V port was missing a proper fence.i (i$ flushing) after constructing the XOL buffer which can result in incorrect execution of stale/broken instructions.

This was found running the BPF selftests est_progs: uprobe_autoattach attach_probe\ on the Spacemit K1/X60 where the uprobes tests randomly blew up.

Reference

https://git.kernel.org/stable/c/1dbb95a36499374c51b47ee8ae258a8862c20978 https://git.kernel.org/stable/c/7d1d19a11cfbfd8bae1d89cc010b2cc397cd0c48 https://git.kernel.org/stable/c/bcf6d3158c5902d92b6d62335af4422b7bf7c4e2