On Mon, Jan 22, 2024 at 05:12:38PM -0800, Kees Cook wrote: > Under PAN emulation when dumping backtraces from things like the > LKDTM EXEC_USERSPACE test[1], a double fault (which would hang a CPU) > would happen because of dump_instr() attempting to read a userspace > address. Make sure copy_from_kernel_nofault() does not attempt this > any more.
This appears to fix the original issue: https://lava.sirena.org.uk/scheduler/job/497571 (though so did your earlier patch) so: Tested-by: Mark Brown <broo...@kernel.org>
signature.asc
Description: PGP signature
