Messages in this thread Patch in this message | | | From | Xiu Jianfeng <> | Subject | [PATCH] tracing/user_events: Fix memory leak in user_event_create() | Date | Tue, 15 Nov 2022 09:44:45 +0800 |
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Before current_user_event_group(), it has allocated memory and save it in @name, this should freed before return error.
Fixes: e5d271812e7a ("tracing/user_events: Move pages/locks into groups to prepare for namespaces") Signed-off-by: Xiu Jianfeng <xiujianfeng@huawei.com> --- kernel/trace/trace_events_user.c | 4 +++- 1 file changed, 3 insertions(+), 1 deletion(-)
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); -- 2.17.1
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