lists.openwall.net | lists / announce owl-users owl-dev john-users john-dev passwdqc-users yescrypt popa3d-users / oss-security kernel-hardening musl sabotage tlsify passwords / crypt-dev xvendor / Bugtraq Full-Disclosure linux-kernel linux-netdev linux-ext4 linux-hardening linux-cve-announce PHC | |
Open Source and information security mailing list archives
| ||
|
Date: Fri, 15 Sep 2017 16:02:28 -0300 From: Arnaldo Carvalho de Melo <acme@...nel.org> To: Martin Kepplinger <martink@...teo.de> Cc: peterz@...radead.org, mingo@...hat.com, alexander.shishkin@...ux.intel.com, linux-kernel@...r.kernel.org Subject: Re: [PATCH] tools: perf: fix leaking rec_argv in error cases Em Wed, Sep 13, 2017 at 09:14:19PM +0200, Martin Kepplinger escreveu: > Let's free the allocated rec_argv in case we return early, in > order to avoid leaking memory. > > This adds free() at a few very similar places across the tree > where it was missing. Thanks, applied. - Arnaldo > Signed-off-by: Martin Kepplinger <martink@...teo.de> > --- > tools/perf/builtin-c2c.c | 1 + > tools/perf/builtin-mem.c | 1 + > tools/perf/builtin-timechart.c | 4 +++- > tools/perf/builtin-trace.c | 1 + > 4 files changed, 6 insertions(+), 1 deletion(-) > > diff --git a/tools/perf/builtin-c2c.c b/tools/perf/builtin-c2c.c > index 475999e48f66..bb1ee22bd221 100644 > --- a/tools/perf/builtin-c2c.c > +++ b/tools/perf/builtin-c2c.c > @@ -2732,6 +2732,7 @@ static int perf_c2c__record(int argc, const char **argv) > if (!perf_mem_events[j].supported) { > pr_err("failed: event '%s' not supported\n", > perf_mem_events[j].name); > + free(rec_argv); > return -1; > } > > diff --git a/tools/perf/builtin-mem.c b/tools/perf/builtin-mem.c > index 0f15634ef82c..6940490bc3f9 100644 > --- a/tools/perf/builtin-mem.c > +++ b/tools/perf/builtin-mem.c > @@ -112,6 +112,7 @@ static int __cmd_record(int argc, const char **argv, struct perf_mem *mem) > if (!perf_mem_events[j].supported) { > pr_err("failed: event '%s' not supported\n", > perf_mem_events__name(j)); > + free(rec_argv); > return -1; > } > > diff --git a/tools/perf/builtin-timechart.c b/tools/perf/builtin-timechart.c > index 4e2e61695986..01de01ca14f2 100644 > --- a/tools/perf/builtin-timechart.c > +++ b/tools/perf/builtin-timechart.c > @@ -1732,8 +1732,10 @@ static int timechart__io_record(int argc, const char **argv) > if (rec_argv == NULL) > return -ENOMEM; > > - if (asprintf(&filter, "common_pid != %d", getpid()) < 0) > + if (asprintf(&filter, "common_pid != %d", getpid()) < 0) { > + free(rec_argv); > return -ENOMEM; > + } > > p = rec_argv; > for (i = 0; i < common_args_nr; i++) > diff --git a/tools/perf/builtin-trace.c b/tools/perf/builtin-trace.c > index 771ddab94bb0..dd8eec4c755c 100644 > --- a/tools/perf/builtin-trace.c > +++ b/tools/perf/builtin-trace.c > @@ -2078,6 +2078,7 @@ static int trace__record(struct trace *trace, int argc, const char **argv) > rec_argv[j++] = "syscalls:sys_enter,syscalls:sys_exit"; > else { > pr_err("Neither raw_syscalls nor syscalls events exist.\n"); > + free(rec_argv); > return -1; > } > } > -- > 2.11.0
Powered by blists - more mailing lists