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| author | Sanskriti Sharma <sansharm@redhat.com> | 2018-10-02 16:29:12 +0200 |
|---|---|---|
| committer | Arnaldo Carvalho de Melo <acme@redhat.com> | 2018-10-08 19:23:45 +0200 |
| commit | 9c8a182e5a73e01afd11742a2ab887bf338fdafd (patch) | |
| tree | a285192c81f8f7edd5ae20362e83e875c4b9dd95 /tools/perf/util/trace-event-parse.c | |
| parent | perf tools: Cleanup trace-event-info 'tdata' leak (diff) | |
| download | linux-9c8a182e5a73e01afd11742a2ab887bf338fdafd.tar.xz linux-9c8a182e5a73e01afd11742a2ab887bf338fdafd.zip | |
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 <sansharm@redhat.com>
Reviewed-by: Jiri Olsa <jolsa@kernel.org>
Cc: Joe Lawrence <joe.lawrence@redhat.com>
Link: http://lkml.kernel.org/r/1538490554-8161-4-git-send-email-sansharm@redhat.com
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
Diffstat (limited to 'tools/perf/util/trace-event-parse.c')
| -rw-r--r-- | tools/perf/util/trace-event-parse.c | 1 |
1 files changed, 1 insertions, 0 deletions
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); } } |