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| author | Sanskriti Sharma <sansharm@redhat.com> | 2018-10-02 17:29:12 +0300 |
|---|---|---|
| committer | Greg Kroah-Hartman <gregkh@linuxfoundation.org> | 2018-11-13 22:08:22 +0300 |
| commit | 9aa0d85d5d8afa1dd3b7dd7e5a5f442d3445d182 (patch) | |
| tree | ba9aff0e105c7ac4b12f7ebf3d21985d15ba1869 /tools | |
| parent | b2ad2430bd75dad1b0a708c833ebc41bb9aff0fd (diff) | |
| download | linux-9aa0d85d5d8afa1dd3b7dd7e5a5f442d3445d182.tar.xz | |
perf tools: Free 'printk' string in parse_ftrace_printk()
[ Upstream commit 9c8a182e5a73e01afd11742a2ab887bf338fdafd ]
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>
Signed-off-by: Sasha Levin <sashal@kernel.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Diffstat (limited to 'tools')
| -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 e76214f8d596..b15a9bf1837b 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); } } |