diff options
| author | Xiu Jianfeng <xiujianfeng@huawei.com> | 2022-11-15 04:44:45 +0300 |
|---|---|---|
| committer | Steven Rostedt (Google) <rostedt@goodmis.org> | 2022-11-23 02:09:50 +0300 |
| commit | ccc6e5900745a60073e4967f04b618cdd92b63d6 (patch) | |
| tree | 3e48612d0fef0ff4bb8bb712f5a4dc188c4b437c /kernel | |
| parent | 0a068f4a717f2a68b34452de682accbb1a40bed0 (diff) | |
| download | linux-ccc6e5900745a60073e4967f04b618cdd92b63d6.tar.xz | |
tracing/user_events: Fix memory leak in user_event_create()
Before current_user_event_group(), it has allocated memory and save it
in @name, this should freed before return error.
Link: https://lkml.kernel.org/r/20221115014445.158419-1-xiujianfeng@huawei.com
Fixes: e5d271812e7a ("tracing/user_events: Move pages/locks into groups to prepare for namespaces")
Signed-off-by: Xiu Jianfeng <xiujianfeng@huawei.com>
Acked-by: Masami Hiramatsu (Google) <mhiramat@kernel.org>
Acked-by: Beau Belgrave <beaub@linux.microsoft.com>
Signed-off-by: Steven Rostedt (Google) <rostedt@goodmis.org>
Diffstat (limited to 'kernel')
| -rw-r--r-- | kernel/trace/trace_events_user.c | 4 |
1 files changed, 3 insertions, 1 deletions
diff --git a/kernel/trace/trace_events_user.c b/kernel/trace/trace_events_user.c index ae78c2d53c8a..539b08ae7020 100644 --- a/kernel/trace/trace_events_user.c +++ b/kernel/trace/trace_events_user.c @@ -1100,8 +1100,10 @@ static int user_event_create(const char *raw_command) group = current_user_event_group(); - if (!group) + if (!group) { + kfree(name); return -ENOENT; + } mutex_lock(&group->reg_mutex); |