This is a note to let you know that I've just added the patch titled
tracing/kprobe: Make trace_kprobe's module callback called after jump_label update
to the 6.1-stable tree which can be found at:
http://www.kernel.org/git/?p=linux/kernel/git/stable/stable-queue.git;a=summary
The filename of the patch is:
tracing-kprobe-make-trace_kprobe-s-module-callback-c.patch
and it can be found in the queue-6.1 subdirectory.
If you, or anyone else, feels it should not be added to the stable tree,
please let <stable@xxxxxxxxxxxxxxx> know about it.
commit 6aeb5fad2ab627bdd2c1878df187b62d80c2e373
Author: Masami Hiramatsu (Google) <mhiramat@xxxxxxxxxx>
Date: Wed Dec 11 09:10:55 2024 +0900
tracing/kprobe: Make trace_kprobe's module callback called after jump_label update
[ Upstream commit d685d55dfc86b1a4bdcec77c3c1f8a83f181264e ]
Make sure the trace_kprobe's module notifer callback function is called
after jump_label's callback is called. Since the trace_kprobe's callback
eventually checks jump_label address during registering new kprobe on
the loading module, jump_label must be updated before this registration
happens.
Link: https://lore.kernel.org/all/173387585556.995044.3157941002975446119.stgit@devnote2/
Fixes: 614243181050 ("tracing/kprobes: Support module init function probing")
Signed-off-by: Masami Hiramatsu (Google) <mhiramat@xxxxxxxxxx>
Signed-off-by: Sasha Levin <sashal@xxxxxxxxxx>
diff --git a/kernel/trace/trace_kprobe.c b/kernel/trace/trace_kprobe.c
index 8657c9b1448e..72655d81b37d 100644
--- a/kernel/trace/trace_kprobe.c
+++ b/kernel/trace/trace_kprobe.c
@@ -702,7 +702,7 @@ static int trace_kprobe_module_callback(struct notifier_block *nb,
static struct notifier_block trace_kprobe_module_nb = {
.notifier_call = trace_kprobe_module_callback,
- .priority = 1 /* Invoked after kprobe module callback */
+ .priority = 2 /* Invoked after kprobe and jump_label module callback */
};
static int count_symbols(void *data, unsigned long unused)
