diff options
author | Daniel Vetter <daniel.vetter@ffwll.ch> | 2019-10-23 12:02:47 +0200 |
---|---|---|
committer | Daniel Vetter <daniel.vetter@ffwll.ch> | 2019-10-23 12:10:05 +0200 |
commit | 2e79e22e092acd55da0b2db066e4826d7d152c41 (patch) | |
tree | e7ec9782c0b7831c511af711424126a2b9a4eb07 /kernel/trace/trace_stack.c | |
parent | f1b4a9217efd61d0b84c6dc404596c8519ff6f59 (diff) | |
parent | 7d194c2100ad2a6dded545887d02754948ca5241 (diff) |
Merge v5.4-rc4 into drm-next
Thierry needs fd70c7755bf0 ("drm/bridge: tc358767: fix max_tu_symbol
value") to be able to merge his dp_link patch series.
Some adjacent changes conflicts, plus some clashes in i915 due to
cherry-picking and git trying to be helpful and leaving both versions
in.
Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
Diffstat (limited to 'kernel/trace/trace_stack.c')
-rw-r--r-- | kernel/trace/trace_stack.c | 8 |
1 files changed, 8 insertions, 0 deletions
diff --git a/kernel/trace/trace_stack.c b/kernel/trace/trace_stack.c index ec9a34a971292..4df9a209f7caf 100644 --- a/kernel/trace/trace_stack.c +++ b/kernel/trace/trace_stack.c @@ -5,6 +5,7 @@ */ #include <linux/sched/task_stack.h> #include <linux/stacktrace.h> +#include <linux/security.h> #include <linux/kallsyms.h> #include <linux/seq_file.h> #include <linux/spinlock.h> @@ -470,6 +471,12 @@ static const struct seq_operations stack_trace_seq_ops = { static int stack_trace_open(struct inode *inode, struct file *file) { + int ret; + + ret = security_locked_down(LOCKDOWN_TRACEFS); + if (ret) + return ret; + return seq_open(file, &stack_trace_seq_ops); } @@ -487,6 +494,7 @@ stack_trace_filter_open(struct inode *inode, struct file *file) { struct ftrace_ops *ops = inode->i_private; + /* Checks for tracefs lockdown */ return ftrace_regex_open(ops, FTRACE_ITER_FILTER, inode, file); } |