Re: [PATCH v2 2/6] riscv: insn: Set sstatus.MXR when reading userspace instruction
Paul Walmsley <[email protected]>
| Newsgroups | org.infradead.lists.linux-riscv |
|---|---|
| Message-ID | <[email protected]> |
Hi, On Tue, 28 Jul 2026, Yicong Yang wrote: > The __read_insn() uses get_user() to read userspace instructions. > Bo Gan noticed that get_user() is insufficient in this case since > it's possible for the instruction segment mapped as execute-only > and get_user() doesn't have permissions to load it. The architecture > provides sstatus.MXR for handling this so set MXR when reading > userspace instruction. If this patch fixes a bug with the preceding patch, it would better just to roll the fix into the original patch. - Paul _______________________________________________ linux-riscv mailing list [email protected] http://lists.infradead.org/mailman/listinfo/linux-riscv