Unverified Commit 2349a3b2 authored Mar 30, 2021 by Jisheng Zhang Committed by Palmer Dabbelt Apr 15, 2021

riscv: add do_page_fault and do_trap_break into the kprobes blacklist



These two functions are used to implement the kprobes feature so they
can't be kprobed.

Fixes: c22b0bcb ("riscv: Add kprobes supported")
Cc: stable@vger.kernel.org
Signed-off-by: Jisheng Zhang <jszhang@kernel.org>
Reviewed-by: Masami Hiramatsu <mhiramat@kernel.org>
Signed-off-by: Palmer Dabbelt <palmerdabbelt@google.com>

parent 199fc6b8

arch/riscv/kernel/traps.c

+1 −0

Original line number	Diff line number	Diff line
		@@ -178,6 +178,7 @@ asmlinkage __visible void do_trap_break(struct pt_regs *regs)
		else
		die(regs, "Kernel BUG");
		}
		NOKPROBE_SYMBOL(do_trap_break);

		#ifdef CONFIG_GENERIC_BUG
		int is_valid_bugaddr(unsigned long pc)

arch/riscv/mm/fault.c

+1 −0

Original line number	Diff line number	Diff line
		@@ -328,3 +328,4 @@ asmlinkage void do_page_fault(struct pt_regs *regs)
		}
		return;
		}
		NOKPROBE_SYMBOL(do_page_fault);