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| author | Beau Belgrave <beaub@linux.microsoft.com> | 2022-11-23 10:32:48 -0800 |
|---|---|---|
| committer | Greg Kroah-Hartman <gregkh@linuxfoundation.org> | 2022-12-31 13:32:41 +0100 |
| commit | 0a022b756f74d2a783bc4e85161dd29ad9eb27f8 (patch) | |
| tree | ae2906724a8bc6f6756d7a5c108e3d4f103cb79a /kernel | |
| parent | e4b7d7297d374e690dde2a2737ec1e4d591bdea9 (diff) | |
| download | linux-0a022b756f74d2a783bc4e85161dd29ad9eb27f8.tar.gz linux-0a022b756f74d2a783bc4e85161dd29ad9eb27f8.tar.bz2 linux-0a022b756f74d2a783bc4e85161dd29ad9eb27f8.zip | |
tracing/user_events: Fix call print_fmt leak
[ Upstream commit 4bded7af8b9af6e97514b0521004f90267905aef ]
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: aa3b2b4c6692 ("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>
Signed-off-by: Sasha Levin <sashal@kernel.org>
Diffstat (limited to 'kernel')
| -rw-r--r-- | kernel/trace/trace_events_user.c | 1 |
1 files changed, 1 insertions, 0 deletions
diff --git a/kernel/trace/trace_events_user.c b/kernel/trace/trace_events_user.c index 539b08ae7020..9cb53182bb31 100644 --- a/kernel/trace/trace_events_user.c +++ b/kernel/trace/trace_events_user.c @@ -1359,6 +1359,7 @@ put_user_lock: put_user: user_event_destroy_fields(user); user_event_destroy_validators(user); + kfree(user->call.print_fmt); kfree(user); return ret; } |