diff options
Diffstat (limited to 'Python/pythonrun.c')
| -rw-r--r-- | Python/pythonrun.c | 12 |
1 files changed, 12 insertions, 0 deletions
diff --git a/Python/pythonrun.c b/Python/pythonrun.c index 963df8a..f6217c3 100644 --- a/Python/pythonrun.c +++ b/Python/pythonrun.c @@ -1437,6 +1437,12 @@ PyOS_getsig(int sig) { #ifdef HAVE_SIGACTION struct sigaction context; + /* Initialize context.sa_handler to SIG_ERR which makes about as + * much sense as anything else. It should get overwritten if + * sigaction actually succeeds and otherwise we avoid an + * uninitialized memory read. + */ + context.sa_handler = SIG_ERR; sigaction(sig, NULL, &context); return context.sa_handler; #else @@ -1453,6 +1459,12 @@ PyOS_setsig(int sig, PyOS_sighandler_t handler) #ifdef HAVE_SIGACTION struct sigaction context; PyOS_sighandler_t oldhandler; + /* Initialize context.sa_handler to SIG_ERR which makes about as + * much sense as anything else. It should get overwritten if + * sigaction actually succeeds and otherwise we avoid an + * uninitialized memory read. + */ + context.sa_handler = SIG_ERR; sigaction(sig, NULL, &context); oldhandler = context.sa_handler; context.sa_handler = handler; |