CVE-2025-37822
riscv: uprobes: Add missing fence.i after building the XOL buffer
We use these services and cookies to improve your user experience. You may opt out if you wish, however, this may limit some features on this site.
Please see our statement on Data Privacy.
riscv: uprobes: Add missing fence.i after building the XOL buffer
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 "test_progs: uprobe_autoattach, attach_probe" on the Spacemit K1/X60, where the uprobes tests randomly blew up.
Reserved 2025-04-16 | Published 2025-05-08 | Updated 2025-05-08 | Assigner Linuxgit.kernel.org/...c/bcf6d3158c5902d92b6d62335af4422b7bf7c4e2
git.kernel.org/...c/1dbb95a36499374c51b47ee8ae258a8862c20978
git.kernel.org/...c/7d1d19a11cfbfd8bae1d89cc010b2cc397cd0c48
Support options
