diff options
| author |   Ian Rogers <irogers@google.com> | 2023-06-11 16:36:06 -0700 |
|---|---|---|
| committer |   Arnaldo Carvalho de Melo <acme@redhat.com> | 2023-06-12 18:18:13 -0300 |
| commit | 657a3efee43a29d13c4f30e4c8f6a178fd2bf14a (patch) | |
| tree | 25b2143466ed0db54a661f0b4234a32b27ef9f7f /tools/lib/subcmd | |
| parent | perf cs-etm: Add exception level consistency check (diff) | |
| download | wireguard-linux-657a3efee43a29d13c4f30e4c8f6a178fd2bf14a.tar.xz wireguard-linux-657a3efee43a29d13c4f30e4c8f6a178fd2bf14a.zip | |
lib subcmd: Avoid memory leak in exclude_cmds
exclude_cmds will shorten the cmds names array, before doing so free the
removed entry.
Signed-off-by: Ian Rogers <irogers@google.com>
Cc: Adrian Hunter <adrian.hunter@intel.com>
Cc: Alexander Shishkin <alexander.shishkin@linux.intel.com>
Cc: André Almeida <andrealmeid@igalia.com>
Cc: Darren Hart <dvhart@infradead.org>
Cc: Davidlohr Bueso <dave@stgolabs.net>
Cc: Ingo Molnar <mingo@redhat.com>
Cc: Jiri Olsa <jolsa@kernel.org>
Cc: Mark Rutland <mark.rutland@arm.com>
Cc: Namhyung Kim <namhyung@kernel.org>
Cc: Peter Zijlstra <peterz@infradead.org>
Cc: Thomas Gleixner <tglx@linutronix.de>
Link: https://lore.kernel.org/r/20230611233610.953456-1-irogers@google.com
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
Diffstat (limited to 'tools/lib/subcmd')
| -rw-r--r-- | tools/lib/subcmd/help.c | 8 |
1 files changed, 6 insertions, 2 deletions
diff --git a/tools/lib/subcmd/help.c b/tools/lib/subcmd/help.c index bf02d62a3b2b..a66fb1a1a312 100644 --- a/tools/lib/subcmd/help.c +++ b/tools/lib/subcmd/help.c @@ -66,6 +66,7 @@ void exclude_cmds(struct cmdnames *cmds, struct cmdnames *excludes) while (ci < cmds->cnt && ei < excludes->cnt) { cmp = strcmp(cmds->names[ci]->name, excludes->names[ei]->name); if (cmp < 0) { + zfree(&cmds->names[cj]); cmds->names[cj++] = cmds->names[ci++]; } else if (cmp == 0) { ci++; @@ -75,9 +76,12 @@ void exclude_cmds(struct cmdnames *cmds, struct cmdnames *excludes) } } - while (ci < cmds->cnt) + while (ci < cmds->cnt) { + zfree(&cmds->names[cj]); cmds->names[cj++] = cmds->names[ci++]; - + } + for (ci = cj; ci < cmds->cnt; ci++) + zfree(&cmds->names[ci]); cmds->cnt = cj; } |