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| author | Masami Hiramatsu (Google) <[email protected]> | 2025-09-19 01:15:56 +0000 |
|---|---|---|
| committer | Steven Rostedt (Google) <[email protected]> | 2025-09-23 15:02:14 +0000 |
| commit | 1da3f145ede481607a93472d2a1f597d6e998eb4 (patch) | |
| tree | 3e2bd05ae2881b7c36c45a497a77614a4b854cfa | |
| parent | tracing/osnoise: Fix slab-out-of-bounds in _parse_integer_limit() (diff) | |
| download | kernel-1da3f145ede481607a93472d2a1f597d6e998eb4.tar.gz kernel-1da3f145ede481607a93472d2a1f597d6e998eb4.zip | |
tracing: dynevent: Add a missing lockdown check on dynevent
Since dynamic_events interface on tracefs is compatible with
kprobe_events and uprobe_events, it should also check the lockdown
status and reject if it is set.
Cc: Mathieu Desnoyers <[email protected]>
Link: https://lore.kernel.org/175824455687.45175.3734166065458520748.stgit@devnote2
Signed-off-by: Masami Hiramatsu (Google) <[email protected]>
Signed-off-by: Steven Rostedt (Google) <[email protected]>
| -rw-r--r-- | kernel/trace/trace_dynevent.c | 4 |
1 files changed, 4 insertions, 0 deletions
diff --git a/kernel/trace/trace_dynevent.c b/kernel/trace/trace_dynevent.c index 5d64a18cacac..d06854bd32b3 100644 --- a/kernel/trace/trace_dynevent.c +++ b/kernel/trace/trace_dynevent.c @@ -230,6 +230,10 @@ static int dyn_event_open(struct inode *inode, struct file *file) { int ret; + ret = security_locked_down(LOCKDOWN_TRACEFS); + if (ret) + return ret; + ret = tracing_check_open_get_tr(NULL); if (ret) return ret; |