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tracing/user_events: Fix call print_fmt leak

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If user_event_trace_register() fails within user_event_parse() the
call's print_fmt member is not freed. Add kfree call to fix this.

Link: https://lkml.kernel.org/r/20221123183248.554-1-beaub@linux.microsoft.com

Fixes: aa3b2b4c66 ("user_events: Add print_fmt generation support for basic types")
Signed-off-by: Beau Belgrave <beaub@linux.microsoft.com>
Signed-off-by: Steven Rostedt (Google) <rostedt@goodmis.org>
This commit is contained in:
Beau Belgrave
2022-11-23 10:32:48 -08:00
committed by Steven Rostedt (Google)
parent bd604f3db4
commit 4bded7af8b
1 changed files with 1 additions and 0 deletions
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kernel/trace/trace_events_user.c
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@@ -1359,6 +1359,7 @@ put_user_lock:
put_user: put_user:
user_event_destroy_fields(user); user_event_destroy_fields(user);
user_event_destroy_validators(user); user_event_destroy_validators(user);
kfree(user->call.print_fmt);
kfree(user); kfree(user);
return ret; return ret;
} }