Linux kernel mirror (for testing)
git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git
kernel
os
linux
perf evlist: Use zfree() to reduce chances of use after free
Do defensive programming by using zfree() to initialize freed pointers
to NULL, so that eventual use after free result in a NULL pointer deref
instead of more subtle behaviour.
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
+2
-2
+2
-2
tools/perf/util/evlist.c
+2
-2
tools/perf/util/evlist.c
···
2325
2325
close_timerfd:
2326
2326
close(eet->timerfd);
2327
2327
free_eet_times:
2328
-
free(eet->times);
2328
+
zfree(&eet->times);
2329
2329
free_eet:
2330
2330
free(eet);
2331
2331
return err;
···
2407
2407
{
2408
2408
if (!ep || !*ep)
2409
2409
return;
2410
-
free((*ep)->times);
2410
+
zfree(&(*ep)->times);
2411
2411
zfree(ep);
2412
2412
}
2413
2413