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| author | Tomas Bortoli <tomasbortoli@gmail.com> | 2019-05-28 17:43:38 +0200 |
|---|---|---|
| committer | Greg Kroah-Hartman <gregkh@linuxfoundation.org> | 2019-06-09 09:17:14 +0200 |
| commit | da32e0303d5fc633575c93e12b292a9b9b58b19f (patch) | |
| tree | 6594d63c6d282a2d56466dfd8371fd9016d43c76 /scripts/gcc-plugins/randomize_layout_plugin.c | |
| parent | 9756c7e0cdc79d6a193dad06804d6803e1e5e380 (diff) | |
tracing: Avoid memory leak in predicate_parse()
commit dfb4a6f2191a80c8b790117d0ff592fd712d3296 upstream.
In case of errors, predicate_parse() goes to the out_free label
to free memory and to return an error code.
However, predicate_parse() does not free the predicates of the
temporary prog_stack array, thence leaking them.
Link: http://lkml.kernel.org/r/20190528154338.29976-1-tomasbortoli@gmail.com
Cc: stable@vger.kernel.org
Fixes: 80765597bc587 ("tracing: Rewrite filter logic to be simpler and faster")
Reported-by: syzbot+6b8e0fb820e570c59e19@syzkaller.appspotmail.com
Signed-off-by: Tomas Bortoli <tomasbortoli@gmail.com>
[ Added protection around freeing prog_stack[i].pred ]
Signed-off-by: Steven Rostedt (VMware) <rostedt@goodmis.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Diffstat (limited to 'scripts/gcc-plugins/randomize_layout_plugin.c')
0 files changed, 0 insertions, 0 deletions