From: Masami Hiramatsu <[email protected]> Cast user-space address correctly to pass to probe_user_read().
Reported-by: kbuild test robot <[email protected]> Signed-off-by: Masami Hiramatsu <[email protected]> Signed-off-by: Steven Rostedt (VMware) <[email protected]> --- kernel/trace/trace_kprobe.c | 4 +++- 1 file changed, 3 insertions(+), 1 deletion(-) diff --git a/kernel/trace/trace_kprobe.c b/kernel/trace/trace_kprobe.c index ff14eb011c1c..2c5357dddb92 100644 --- a/kernel/trace/trace_kprobe.c +++ b/kernel/trace/trace_kprobe.c @@ -955,7 +955,9 @@ probe_mem_read(void *dest, void *src, size_t size) static nokprobe_inline int probe_mem_read_user(void *dest, void *src, size_t size) { - return probe_user_read(dest, src, size); + const void __user *uaddr = (__force const void __user *)src; + + return probe_user_read(dest, uaddr, size); } /* Note that we don't verify it, since the code does not come from user space */ -- 2.20.1
