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| author | Steven Rostedt (VMware) <rostedt@goodmis.org> | 2018-12-11 05:58:01 +0100 |
|---|---|---|
| committer | Steven Rostedt (VMware) <rostedt@goodmis.org> | 2018-12-11 19:50:28 +0100 |
| commit | 2840f84f74035e5a535959d5f17269c69fa6edc5 (patch) | |
| tree | d34045c522b96a57bd2ca29c089cf6df8d9d6b6e /kernel/rseq.c | |
| parent | tracing: Fix memory leak in set_trigger_filter() (diff) | |
| download | linux-2840f84f74035e5a535959d5f17269c69fa6edc5.tar.xz linux-2840f84f74035e5a535959d5f17269c69fa6edc5.zip | |
tracing: Fix memory leak of instance function hash filters
The following commands will cause a memory leak:
# cd /sys/kernel/tracing
# mkdir instances/foo
# echo schedule > instance/foo/set_ftrace_filter
# rmdir instances/foo
The reason is that the hashes that hold the filters to set_ftrace_filter and
set_ftrace_notrace are not freed if they contain any data on the instance
and the instance is removed.
Found by kmemleak detector.
Cc: stable@vger.kernel.org
Fixes: 591dffdade9f ("ftrace: Allow for function tracing instance to filter functions")
Signed-off-by: Steven Rostedt (VMware) <rostedt@goodmis.org>
Diffstat (limited to 'kernel/rseq.c')
0 files changed, 0 insertions, 0 deletions