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authorMasami Hiramatsu <mhiramat@kernel.org>2018-11-01 23:29:28 +0900
committerSteven Rostedt (VMware) <rostedt@goodmis.org>2018-11-05 09:47:14 -0500
commitee474b81fe5aa5dc0faae920bf66240fbf55f891 (patch)
tree1217774096cd611025ba6c940744b715556e0d92 /kernel/trace
parent651022382c7f8da46cb4872a545ee1da6d097d2a (diff)
downloadlinux-ee474b81fe5aa5dc0faae920bf66240fbf55f891.tar.bz2
tracing/kprobes: Fix strpbrk() argument order
Fix strpbrk()'s argument order, it must pass acceptable string in 2nd argument. Note that this can cause a kernel panic where it recovers backup character to code->data. Link: http://lkml.kernel.org/r/154108256792.2604.1816052586385217811.stgit@devbox Fixes: a6682814f371 ("tracing/kprobes: Allow kprobe-events to record module symbol") Signed-off-by: Masami Hiramatsu <mhiramat@kernel.org> Signed-off-by: Steven Rostedt (VMware) <rostedt@goodmis.org>
Diffstat (limited to 'kernel/trace')
-rw-r--r--kernel/trace/trace_probe.c2
1 files changed, 1 insertions, 1 deletions
diff --git a/kernel/trace/trace_probe.c b/kernel/trace/trace_probe.c
index 3ef15a6683c0..bd30e9398d2a 100644
--- a/kernel/trace/trace_probe.c
+++ b/kernel/trace/trace_probe.c
@@ -535,7 +535,7 @@ int traceprobe_update_arg(struct probe_arg *arg)
if (code[1].op != FETCH_OP_IMM)
return -EINVAL;
- tmp = strpbrk("+-", code->data);
+ tmp = strpbrk(code->data, "+-");
if (tmp)
c = *tmp;
ret = traceprobe_split_symbol_offset(code->data,