diff options
Diffstat (limited to 'arch/x86_64/kernel/kprobes.c')
-rw-r--r-- | arch/x86_64/kernel/kprobes.c | 9 |
1 files changed, 9 insertions, 0 deletions
diff --git a/arch/x86_64/kernel/kprobes.c b/arch/x86_64/kernel/kprobes.c index b7dc1f8..8b866a8 100644 --- a/arch/x86_64/kernel/kprobes.c +++ b/arch/x86_64/kernel/kprobes.c @@ -334,6 +334,15 @@ int __kprobes kprobe_handler(struct pt_regs *regs) return 1; } } else { + if (*addr != BREAKPOINT_INSTRUCTION) { + /* The breakpoint instruction was removed by + * another cpu right after we hit, no further + * handling of this interrupt is appropriate + */ + regs->rip = (unsigned long)addr; + ret = 1; + goto no_kprobe; + } p = __get_cpu_var(current_kprobe); if (p->break_handler && p->break_handler(p, regs)) { goto ss_probe; |