On Tue, 12 Sep 2023 21:47:52 +0800
Jinjie Ruan wrote:
> Inject fault while probing btrfs.ko, if kstrdup() fails in
> eventfs_prepare_ef() in eventfs_add_dir(), it will return ERR_PTR
> to assign file->ef. But the eventfs_remove() check NULL in
> trace_module_remove_events(), which causes the
On Tue, 12 Sep 2023 21:47:52 +0800
Jinjie Ruan wrote:
> v5:
> - Move the ef below dir to keep the "upside-down x-mas tree" format.
That was quick!
I'll add it to my queue and start testing it.
Thanks Ruan!
-- Steve
Inject fault while probing btrfs.ko, if kstrdup() fails in
eventfs_prepare_ef() in eventfs_add_dir(), it will return ERR_PTR
to assign file->ef. But the eventfs_remove() check NULL in
trace_module_remove_events(), which causes the below NULL
pointer dereference.
As both Masami and Steven suggest,
On Tue, 12 Sep 2023 10:58:08 +0800
Jinjie Ruan wrote:
This looks good. But I have a small nit.
> diff --git a/kernel/trace/trace_events.c b/kernel/trace/trace_events.c
> index ed367d713be0..8e0593d4c6a6 100644
> --- a/kernel/trace/trace_events.c
> +++ b/kernel/trace/trace_events.c
> @@ -2296,6
