Commit-ID: 9c8a182e5a73e01afd11742a2ab887bf338fdafd Gitweb: https://git.kernel.org/tip/9c8a182e5a73e01afd11742a2ab887bf338fdafd Author: Sanskriti Sharma <sansh...@redhat.com> AuthorDate: Tue, 2 Oct 2018 10:29:12 -0400 Committer: Arnaldo Carvalho de Melo <a...@redhat.com> CommitDate: Mon, 8 Oct 2018 14:23:45 -0300
perf tools: Free 'printk' string in parse_ftrace_printk() parse_ftrace_printk() tokenizes and parses a line, calling strdup() each iteration. Add code to free this temporary format string duplicate. Fixes the following coverity complaints: Error: RESOURCE_LEAK (CWE-772): tools/perf/util/trace-event-parse.c:158: overwrite_var: Overwriting "printk" in "printk = strdup(fmt + 1)" leaks the storage that "printk" points to. tools/perf/util/trace-event-parse.c:162: leaked_storage: Variable "printk" going out of scope leaks the storage it points to. Signed-off-by: Sanskriti Sharma <sansh...@redhat.com> Reviewed-by: Jiri Olsa <jo...@kernel.org> Cc: Joe Lawrence <joe.lawre...@redhat.com> Link: http://lkml.kernel.org/r/1538490554-8161-4-git-send-email-sansh...@redhat.com Signed-off-by: Arnaldo Carvalho de Melo <a...@redhat.com> --- tools/perf/util/trace-event-parse.c | 1 + 1 file changed, 1 insertion(+) diff --git a/tools/perf/util/trace-event-parse.c b/tools/perf/util/trace-event-parse.c index a4d7de1c96d1..02f97f5dd588 100644 --- a/tools/perf/util/trace-event-parse.c +++ b/tools/perf/util/trace-event-parse.c @@ -158,6 +158,7 @@ void parse_ftrace_printk(struct tep_handle *pevent, printk = strdup(fmt+1); line = strtok_r(NULL, "\n", &next); tep_register_print_string(pevent, printk, addr); + free(printk); } }
